ANALYSING THE METALL IC FOAM -FILLED TRIPLE TUBE … · convection then heat is conducted through...

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International Journal of Civil Engineering and Technology (IJCIET)Volume 8, Issue 7, JulyAvailable online at ISSN Print: 0976 © IAEME

ANALYSING THE METALLTRIPLE TUBE CONCENTR

ABSTRACTTo enhance the heat transfer rate utilizing metal froths. The execution

tube coaxial heat transfer is assessed utilizing CFD recreation strategy for various massin the inward annulus of the center pipe. Water is utilized as a working lione of the tubes however their temperatures were kept distinctive for heat transfer to occur. Boiling water moving through the center pipe transfer the heat to the liquids coursing through alternate pipes because of the temperature contrast hsituation the measure of heat transferred is more contrasted with that in the plain tube because of the expansion of the aluminium foam. For center pipe in which froth is put, the temperature and weight drops are plotted for the boiling watstream rates both for with and without froth conditions. Results demonstrate that the temperature drop diminishes with the expansion in mass stream rate while the weight drops increments with the expansion in massof the report is that the temperature and weight drop in tube with froth was more contrasted with that in tube without frothKey wordsCite this ArticleConcentric Heat Transfer8(7), 2017, pp. 4http://www.iaeme.com/IJCIET/issues.

1. INTRODUCTIONThe Triple tube warm exvarious breadths and lengths. The third pipe enhances the stream entry and a bigger this heat transferpipe of the surface range and in this manner it has the capacity of upgrading the primary goal of this venture is to locate an option strategy for warm dissemination. Since the progression in innovation requests for smallness in gadgets and hardware, consequently, it winds up noticeably important to devise a framework whgets littler space. The idea emerges from the considerably higher territory to volume


International Journal of Civil Engineering and Technology (IJCIET)Volume 8, Issue 7, JulyAvailable online at http://www.iaeme.com/IJCIET/issues.ISSN Print: 0976-6308 and ISSN Online: 0976

© IAEME Publication


ABSTRACT To enhance the heat transfer rate utilizing metal froths. The execution

tube coaxial heat transfer is assessed utilizing CFD recreation strategy for various mass-stream rates, where the stream design is kept counterin the inward annulus of the center pipe. Water is utilized as a working lione of the tubes however their temperatures were kept distinctive for heat transfer to occur. Boiling water moving through the center pipe transfer the heat to the liquids coursing through alternate pipes because of the temperature contrast hsituation the measure of heat transferred is more contrasted with that in the plain tube because of the expansion of the aluminium foam. For center pipe in which froth is put, the temperature and weight drops are plotted for the boiling watstream rates both for with and without froth conditions. Results demonstrate that the temperature drop diminishes with the expansion in mass stream rate while the weight drops increments with the expansion in massof the report is that the temperature and weight drop in tube with froth was more contrasted with that in tube without frothKey words: Triple tube; Metal foam; Simulation of aluminium foam using CFDCite this ArticleConcentric Heat Transfer8(7), 2017, pp. 4http://www.iaeme.com/IJCIET/issues.

INTRODUCTIONThe Triple tube warm exvarious breadths and lengths. The third pipe enhances the stream entry and a bigger

heat transfer is the pipe of the heat transfersurface range and in this manner it has the capacity of upgrading the primary goal of this venture is to locate an option strategy for warm dissemination. Since the progression in innovation requests for smallness in gadgets and hardware, consequently, it winds up noticeably important to devise a framework whgets littler space. The idea emerges from the considerably higher territory to volume

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International Journal of Civil Engineering and Technology (IJCIET)Volume 8, Issue 7, July 2017, pp.

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Publication


Department of Mechanical EngineeringMLR Institute of Technology, Hyderabad, India

To enhance the heat transfer rate utilizing metal froths. The execution tube coaxial heat transfer is assessed utilizing CFD recreation strategy for various

stream rates, where the stream design is kept counterin the inward annulus of the center pipe. Water is utilized as a working lione of the tubes however their temperatures were kept distinctive for heat transfer to occur. Boiling water moving through the center pipe transfer the heat to the liquids coursing through alternate pipes because of the temperature contrast hsituation the measure of heat transferred is more contrasted with that in the plain tube because of the expansion of the aluminium foam. For center pipe in which froth is put, the temperature and weight drops are plotted for the boiling watstream rates both for with and without froth conditions. Results demonstrate that the temperature drop diminishes with the expansion in mass stream rate while the weight drops increments with the expansion in massof the report is that the temperature and weight drop in tube with froth was more contrasted with that in tube without froth

Triple tube; Metal foam; Simulation of aluminium foam using CFDCite this Article: A. Nalini DeepthiConcentric Heat Transfer. 8(7), 2017, pp. 496–502. http://www.iaeme.com/IJCIET/issues.

INTRODUCTION The Triple tube warm exchanger said in the theme comprises of three concentric containers of various breadths and lengths. The third pipe enhances the stream entry and a bigger heat transfer

is the aluminiumheat transfer as appeared in fig no.2. The metal (

surface range and in this manner it has the capacity of upgrading the primary goal of this venture is to locate an option strategy for warm dissemination. Since the progression in innovation requests for smallness in gadgets and hardware, consequently, it winds up noticeably important to devise a framework whgets littler space. The idea emerges from the considerably higher territory to volume

IJCIET/index.asp

International Journal of Civil Engineering and Technology (IJCIET)2017, pp. 496–502, Article ID: IJCIET_08_07

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Scopus Indexed


A. Nalini DeepthiDepartment of Mechanical Engineering

MLR Institute of Technology, Hyderabad, India


stream rates, where the stream design is kept counterin the inward annulus of the center pipe. Water is utilized as a working lione of the tubes however their temperatures were kept distinctive for heat transfer to occur. Boiling water moving through the center pipe transfer the heat to the liquids coursing through alternate pipes because of the temperature contrast hsituation the measure of heat transferred is more contrasted with that in the plain tube because of the expansion of the aluminium foam. For center pipe in which froth is put, the temperature and weight drops are plotted for the boiling watstream rates both for with and without froth conditions. Results demonstrate that the temperature drop diminishes with the expansion in mass stream rate while the weight drops increments with the expansion in massof the report is that the temperature and weight drop in tube with froth was more contrasted with that in tube without froth

Triple tube; Metal foam; Simulation of aluminium foam using CFDA. Nalini Deepthi.

. International Journal of Civil Engineering and Technology

http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=8&IType=7

changer said in the theme comprises of three concentric containers of various breadths and lengths. The third pipe enhances the

heat transfer zone per unit exchanger length. The key component of aluminium froth which is set inside the internal annulus of the center

as appeared in fig no.2. The metal (surface range and in this manner it has the capacity of upgrading the primary goal of this venture is to locate an option strategy for warm dissemination. Since the progression in innovation requests for smallness in gadgets and hardware, consequently, it winds up noticeably important to devise a framework whgets littler space. The idea emerges from the considerably higher territory to volume

asp 496

International Journal of Civil Engineering and Technology (IJCIET)Article ID: IJCIET_08_07

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Indexed


A. Nalini DeepthiDepartment of Mechanical Engineering



stream rates, where the stream design is kept counterin the inward annulus of the center pipe. Water is utilized as a working lione of the tubes however their temperatures were kept distinctive for heat transfer to occur. Boiling water moving through the center pipe transfer the heat to the liquids coursing through alternate pipes because of the temperature contrast hsituation the measure of heat transferred is more contrasted with that in the plain tube because of the expansion of the aluminium foam. For center pipe in which froth is put, the temperature and weight drops are plotted for the boiling watstream rates both for with and without froth conditions. Results demonstrate that the temperature drop diminishes with the expansion in mass stream rate while the weight drops increments with the expansion in mass-stream rate. The perceof the report is that the temperature and weight drop in tube with froth was more contrasted with that in tube without froth.

Triple tube; Metal foam; Simulation of aluminium foam using CFD Analysing the Metallic Foam

International Journal of Civil Engineering and Technology

asp?JType=IJCIET&VType=8&IType=7

changer said in the theme comprises of three concentric containers of various breadths and lengths. The third pipe enhances the

zone per unit exchanger length. The key component of froth which is set inside the internal annulus of the center

as appeared in fig no.2. The metal (surface range and in this manner it has the capacity of upgrading the primary goal of this venture is to locate an option strategy for warm dissemination. Since the progression in innovation requests for smallness in gadgets and hardware, consequently, it winds up noticeably important to devise a framework whgets littler space. The idea emerges from the considerably higher territory to volume

International Journal of Civil Engineering and Technology (IJCIET)Article ID: IJCIET_08_07


ANALYSING THE METALLIC FOAMTRIPLE TUBE CONCENTRIC HEAT TRANSFER

A. Nalini Deepthi Department of Mechanical Engineering



stream rates, where the stream design is kept counterin the inward annulus of the center pipe. Water is utilized as a working lione of the tubes however their temperatures were kept distinctive for heat transfer to occur. Boiling water moving through the center pipe transfer the heat to the liquids coursing through alternate pipes because of the temperature contrast hsituation the measure of heat transferred is more contrasted with that in the plain tube because of the expansion of the aluminium foam. For center pipe in which froth is put, the temperature and weight drops are plotted for the boiling watstream rates both for with and without froth conditions. Results demonstrate that the temperature drop diminishes with the expansion in mass stream rate while the weight

stream rate. The perceof the report is that the temperature and weight drop in tube with froth was more

Triple tube; Metal foam; Simulation of aluminium foam using CFDAnalysing the Metallic Foam



changer said in the theme comprises of three concentric containers of various breadths and lengths. The third pipe enhances the heat transfer


as appeared in fig no.2. The metal (surface range and in this manner it has the capacity of upgrading the primary goal of this venture is to locate an option strategy for warm dissemination. Since the progression in innovation requests for smallness in gadgets and hardware, consequently, it winds up noticeably important to devise a framework which would for a similar gets littler space. The idea emerges from the considerably higher territory to volume

[email protected]

International Journal of Civil Engineering and Technology (IJCIET) Article ID: IJCIET_08_07_053


IC FOAMIC HEAT TRANSFER

Department of Mechanical Engineering, MLR Institute of Technology, Hyderabad, India


stream rates, where the stream design is kept counter-present. Metal foam is set in the inward annulus of the center pipe. Water is utilized as a working lione of the tubes however their temperatures were kept distinctive for heat transfer to occur. Boiling water moving through the center pipe transfer the heat to the liquids coursing through alternate pipes because of the temperature contrast hsituation the measure of heat transferred is more contrasted with that in the plain tube because of the expansion of the aluminium foam. For center pipe in which froth is put, the temperature and weight drops are plotted for the boiling water against the mass stream rates both for with and without froth conditions. Results demonstrate that the temperature drop diminishes with the expansion in mass stream rate while the weight

stream rate. The perceptible substance of the report is that the temperature and weight drop in tube with froth was more

Triple tube; Metal foam; Simulation of aluminium foam using CFDAnalysing the Metallic Foam-Filled Triple Tube



changer said in the theme comprises of three concentric containers of heat transfer


as appeared in fig no.2. The metal (aluminiumsurface range and in this manner it has the capacity of upgrading the primary goal of this venture is to locate an option strategy for warm dissemination. Since the progression in innovation requests for smallness in gadgets and hardware, consequently, it

ich would for a similar gets littler space. The idea emerges from the considerably higher territory to volume

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IC FOAM-FILLED IC HEAT TRANSFER

To enhance the heat transfer rate utilizing metal froths. The execution of Triple tube coaxial heat transfer is assessed utilizing CFD recreation strategy for various

present. Metal foam is set in the inward annulus of the center pipe. Water is utilized as a working liquid in every one of the tubes however their temperatures were kept distinctive for heat transfer to occur. Boiling water moving through the center pipe transfer the heat to the liquids coursing through alternate pipes because of the temperature contrast however for this situation the measure of heat transferred is more contrasted with that in the plain tube because of the expansion of the aluminium foam. For center pipe in which froth is put,

er against the mass stream rates both for with and without froth conditions. Results demonstrate that the temperature drop diminishes with the expansion in mass stream rate while the weight

ptible substance of the report is that the temperature and weight drop in tube with froth was more

Triple tube; Metal foam; Simulation of aluminium foam using CFD. Filled Triple Tube



changer said in the theme comprises of three concentric containers of heat transfer through an extra


aluminium) froth builds the surface range and in this manner it has the capacity of upgrading the heat transferprimary goal of this venture is to locate an option strategy for warm dissemination. Since the progression in innovation requests for smallness in gadgets and hardware, consequently, it

ich would for a similar heat transfergets littler space. The idea emerges from the considerably higher territory to volume

[email protected]


FILLED IC HEAT TRANSFER

of Triple tube coaxial heat transfer is assessed utilizing CFD recreation strategy for various

present. Metal foam is set quid in every

one of the tubes however their temperatures were kept distinctive for heat transfer to occur. Boiling water moving through the center pipe transfer the heat to the liquids

owever for this situation the measure of heat transferred is more contrasted with that in the plain tube because of the expansion of the aluminium foam. For center pipe in which froth is put,

er against the mass stream rates both for with and without froth conditions. Results demonstrate that the temperature drop diminishes with the expansion in mass stream rate while the weight

ptible substance of the report is that the temperature and weight drop in tube with froth was more

Filled Triple Tube

International Journal of Civil Engineering and Technology,

changer said in the theme comprises of three concentric containers of through an extra


) froth builds the t transfer. The

primary goal of this venture is to locate an option strategy for warm dissemination. Since the progression in innovation requests for smallness in gadgets and hardware, consequently, it

heat transfer gets littler space. The idea emerges from the considerably higher territory to volume

A. Nalini Deepthi

http://www.iaeme.com/IJCIET/index.asp 497 [email protected]

proportion, which is very nearly five times higher than finned-tube packs. This implies a similar weight of metal froth ought to be five times more conservative than the blades and therefore additionally requires a great deal less zone for setup. The requirement for smallness drove the analysts to concentrate on materials and their plans for upgrading the heat transfer/dispersal at the relatively higher rate. Besides, the utilization of balances likewise does not diminish the region to a more prominent degree as would be normal for smallness. Metal froths could along these lines be utilized to supplant even finned tubes.

2. BACKGROUND The froths are inflexible, and lightweight, non-noxious structure which has high surface zone and recyclable which enhance vitality retention and warmth move in warm applications, for example, warm exchangers. Froth tendons in the stream heading result in limit layer interruption and blending. The upsides of metal froths lie on their low thickness, a vast surface territory in a constrained volume and high quality structure. Metal froths are expensive however because of late improvements in the metal sintering strategy for froth fabricate, their expenses have been decreased [1]. Examined the powerful warm conductivity of high-porosity sinewy metal froths tentatively. An experimental connection was created and a hypothetical model was determined. The model forecasts concurred intimately with the trial information and were utilized for the assessment of metal froths as conceivable possibility for warm sinks in gadgets cooling applications [2]. Watched that open-cell metal froths with a normal cell width of 2.3 mm were made from 6101-T6 aluminium compound and were packed into minimal heat transfers having a surface range to volume proportion of the request of 10,000 m2/m3. They were put into a constrained convection course of action utilizing water as the coolant. These trials performed with water were scaled to appraise the heat transfers execution when utilized with a half water–ethylene glycol arrangement and were then contrasted with the execution of industrially accessible heat transfers which were intended for a similar heat transfer application. The heat transfers were analysed on the premise of required pumping power versus warm resistance. The packed open-cell aluminium froth warm exchangers created warm resistances that were a few times lower than the best monetarily accessible heat transfer testing while at the same time requiring the same pumping power [3]. Presents an explanatory investigation of the constrained convection warm move qualities in high porosity open-cell International Journal on Recent and Innovation Trends in Computing and Communication metal froth filled funnels. In view of the investigative arrangements, the speed and temperature disseminations in metal froth filled funnels were gotten. The impacts of the microstructure of metal froths on general heat transfer were inspected. The outcomes demonstrate that the pore size and porosity of metal froths assume essential parts on general heat transfer execution. The utilization of metal froth can drastically improve the heat transfer yet to the detriment of higher weight drop [4]. States that Metal froth warm exchangers have significant preferences in warm administration and warmth recuperation more than a few industrially accessible heat transfers. In this work, the impacts of microstructural metal froth properties, for example, porosity, pore and fiber widths, tortuosity, pore thickness, and relative thickness, on the heat transfer execution are talked about. Three primary classes are blended. In the primary classification, the relationships for weight drop and heat transfer coefficient in view of the microstructural properties of the metal froth are given. In the second class, the relationships are particular for metal froth tube warm exchangers. In the third classification, connections are particular for metal froth channel warm exchangers. To examine the execution of the froth filled heat transfers in correlation with the plain ones, the required directing energy to beat the weight drop and heat transfer rate of froth filled and plain heat transfers are contemplated and thought about. An execution factor is presented which incorporates the impacts of both heat transfer rate and weight drop after

Analysing the Metallic Foam-Filled Triple Tube Concentric Heat Transfer


consideration of the metal froth. The outcomes show that the execution will be enhanced generously when the metal froth is embedded in the tube/channel [5]. States that the heat transfer obligation of heat transfers can be enhanced by detached heat transfer upgrade strategies. On the premise of a hypothetical and exploratory investigation, the conclusion determined was that the best heat transfer upgrade can be come to by the utilization of the permeable material as a reasonable strategy to broaden the heat transfer zone, enhance successful warm conductivity, and blend liquid stream [6]. Tested the execution of a triple concentric pipe warm exchanger and completed numerically utilizing limited component strategy (FEM) under enduring state conditions for various stream courses of action and for protected and additionally non-protected states of the heat transfer. The three liquids being considered are high temp water, cool water, and the ordinary faucet water. The outcomes are displayed as the dimensionless temperature varieties of the three liquids along the length of the heat transfer for their diverse stream rates. It is discovered that the numerical expectations of the temperature varieties of the three liquids by utilizing FEM take after nearly to those gotten from tests both in extent and pattern gave redress general heat transfer coefficients are utilized. Triple concentric-tube warm exchangers give better heat transfer.

Nomenclature NF Normal fluid at 30°C HF Hot fluid at 70°C Tc1 Inlet temperature of innermost fluid Tc2 Outlet temperature of innermost fluid Th1 Inlet temperature of middle fluid Th2 Outlet temperature of middle fluid Tc3 Inlet temperature of outermost fluid Tc4 Outlet temperature of outermost fluid K Thermal conductivity Cf Inertial coefficient Dp Pore diameter Df Fiber diameter PPI Pores per inch α Permeability h Convective heat transfer coefficient

3. IMPLEMENTATION The trial show is made on strong fills in according to the measurements specified above and the same is foreign in Analysis 14.5 where re-enactment is finished. The limit conditions for the reproduction are depicted underneath. All gulfs are given a similar mass stream rate as the info. Every one of the outlets is kept as weight outlets. The external divider pipe is looked after Adiabatic. The metal froth is given a permeable condition and it is been connected with important froth properties like porosity, inertial resistance and thick resistance permitted by Analysis. Porosity kept for reproduction is 0.65

The arrangement strategies embraced are Pressure-speed coupling plan SIMPLE, Spatial Discretization Gradient Green-Gauss Node Based, Pressure Standard, Momentum Second Order Upwind, and Energy Second Order Upwind. The under-unwinding factors for: pressure =0.3, Density=1, Body forces=1, Momentum=0.7 and energy=0.7.The add up to no of


emphases (500) are kept uniform for alllayers on limit. Recreation was accomplished for two cases, one was for plain triple tube i.e. without froth and another was by putting thecenter pipe. After reproduction the outcomes got are appeared in tables underneath. After simulation the results obtained are shown in tables below.

3.1. Placing the



Placing the M



Fig

Fig

Metal Foam in the

A. Nalini Deepthi

IJCIET/index.asp

emphases (500) are kept uniform for all the relayers on limit. Recreation was accomplished for two cases, one was for plain triple tube i.e. without froth and another was by putting thecenter pipe. After reproduction the outcomes got are appeared in tables underneath. After simulation the results obtained are shown in tables below.

Figure 1 Truncated

Figure 2 Large po

Figure 3 Small porosity of metal foam

oam in the H

A. Nalini Deepthi

asp 499

the re-enactments. Work was tetrahedral with crystal layers on limit. Recreation was accomplished for two cases, one was for plain triple tube i.e. without froth and another was by putting the metal froth inside the inward annular space of he center pipe. After reproduction the outcomes got are appeared in tables underneath. After simulation the results obtained are shown in tables below.

Truncated-octahedron foam

Large porosity of metal foam

Small porosity of metal foam

Heat Exchanger

Figure 4

A. Nalini Deepthi

enactments. Work was tetrahedral with crystal layers on limit. Recreation was accomplished for two cases, one was for plain triple tube i.e.

metal froth inside the inward annular space of he center pipe. After reproduction the outcomes got are appeared in tables underneath. After simulation the results obtained are shown in tables below.

octahedron foam

rosity of metal foam


xchanger

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metal froth inside the inward annular space of he center pipe. After reproduction the outcomes got are appeared in tables underneath. After

octahedron foam

rosity of metal foam


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Four possible methods of connecting the foam to the tube: a. Brazing b. Co-casting c. Thermal glue bonding and d. Mechanical press

For worst.

3.2. ResultsHot water will be passed through the intwill be passed exposed to the atmosphere. Heat is first transferred from hot water to pipe wall due to convection then heat is conducted through the pipe wall then finally to the cold water by convection. Here the Surface area is been increased by putting metal foams inside the heat exchanger. This results in higher heat transfer rate. But obviously at higher pressure drop. This concept is useful where pressure drop is not much important factor transfer.

Simulation Results: Comparison results for different masswith and without foam

Analysing the Metallic Foam


our possible methods of connecting the foam to the tube: a. Brazing

casting c. Thermal glue bonding and d. Mechanical press

For heat transfer, they found brazing to be the best technique while press

Results Hot water will be passed through the intwill be passed through the annular area and the innermost pipe. Outlets of all the pipes are exposed to the atmosphere. Heat is first transferred from hot water to pipe wall due to convection then heat is conducted through the pipe wall then finally to the cold water by convection. Here the Surface area is been increased by putting metal foams inside the heat exchanger. This results in higher heat transfer rate. But obviously at higher pressure drop. This concept is useful where pressure drop is not much important factor transfer.




our possible methods of connecting the foam to the tube:

c. Thermal glue bonding and d. Mechanical press-fitting.

heat transfer, they found brazing to be the best technique while press

Fig

Hot water will be passed through the intthrough the annular area and the innermost pipe. Outlets of all the pipes are

exposed to the atmosphere. Heat is first transferred from hot water to pipe wall due to convection then heat is conducted through the pipe wall then finally to the cold water by convection. Here the Surface area is been increased by putting metal foams inside the heat exchanger. This results in higher heat transfer rate. But obviously at higher pressure drop. This concept is useful where pressure drop is not much important factor


Figure 6 Pressure drop without foam and with foam graph


IJCIET/index.asp



Figure 5 Model showing inlets and outlets

Hot water will be passed through the intermediate pipe as shown in fig.through the annular area and the innermost pipe. Outlets of all the pipes are


Simulation Results: Comparison results for different mass

Pressure drop without foam and with foam graph


asp 500



Model showing inlets and outlets

ermediate pipe as shown in fig.through the annular area and the innermost pipe. Outlets of all the pipes are




Filled Triple Tube Concentric Heat Transfer




ermediate pipe as shown in fig.through the annular area and the innermost pipe. Outlets of all the pipes are





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ermediate pipe as shown in fig.7 similarly cold water through the annular area and the innermost pipe. Outlets of all the pipes are

exposed to the atmosphere. Heat is first transferred from hot water to pipe wall due to convection then heat is conducted through the pipe wall then finally to the cold water by convection. Here the Surface area is been increased by putting metal foams inside the heat exchanger. This results in higher heat transfer rate. But obviously at higher pressure drop. This concept is useful where pressure drop is not much important factor compared to the heat

Simulation Results: Comparison results for different mass-flow rates for pressure drop



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heat transfer, they found brazing to be the best technique while press-fitting was the

similarly cold water through the annular area and the innermost pipe. Outlets of all the pipes are

exposed to the atmosphere. Heat is first transferred from hot water to pipe wall due to convection then heat is conducted through the pipe wall then finally to the cold water by convection. Here the Surface area is been increased by putting metal foams inside the heat exchanger. This results in higher heat transfer rate. But obviously at higher pressure drop.

compared to the heat

flow rates for pressure drop

[email protected]

fitting was the

similarly cold water through the annular area and the innermost pipe. Outlets of all the pipes are

exposed to the atmosphere. Heat is first transferred from hot water to pipe wall due to convection then heat is conducted through the pipe wall then finally to the cold water by convection. Here the Surface area is been increased by putting metal foams inside the heat exchanger. This results in higher heat transfer rate. But obviously at higher pressure drop.

compared to the heat

flow rates for pressure drop


4. CONCLUSIONThe reproduction comes about, we watch the accompanying things: With the expansion in mass stream rate the weight drop and temperature drop increments in both the cases yet more for the situation with metal froth. Warmth exchange could subsequentessentially however with an expansion in weight drop. In this manner we can put an exclusive 200mm length of metal froth for 2.2469kW of warmth exchange for 0.0225kg/s of mass stream rate.

REFERENCES[1]

[2]

[3]

[4]

[5]

[6]

[7]


ONCLUSIONThe reproduction comes about, we watch the accompanying things: With the expansion in mass stream rate the weight drop and temperature drop increments in both the cases yet more for the situation with metal froth. Warmth exchange could subsequentessentially however with an expansion in weight drop. In this manner we can put an exclusive 200mm length of metal froth for 2.2469kW of warmth exchange for 0.0225kg/s of mass stream rate.

REFERENCES Calmidi, V.V, and Mahajan, R.L., The

Fibrous metal foams, J. Heat Transfer, vol. 121,pp. 466

Boomsma, K., Poulikakos, D., and Zwick, F., Metal foams as compact high Performance heat exchangers, Mechanics of Materials, vol.35, pp.1

W. Lua, C.Y Zhao, S.A.Tassau, “Thermal analysis on metalPart I: MetalPart I: Metal

ShadiMahjmetal foam heat exchanger’’, International Journal of Heat and Mass Transfer 51, 37013711,2008 (28 march 2008)

M. A. Delavar and M. AzimiHeat Exchangers” Journal of Engineering Science and Technology (Jan 2013)

G.A. Quadir et al, “Numerical investigation of the performance of a triple concentric pipe heat exchanger” International Journal of Heat and Mass Transfer 75 (201April 2014)

K. Nawaz, J. Bock, Z. Dai, and A. Jacobi “ Experimental Studies to Evaluate the Use of Metal Foams in Highly Compact Air


Figure 7

ONCLUSIONS The reproduction comes about, we watch the accompanying things: With the expansion in mass stream rate the weight drop and temperature drop increments in both the cases yet more for the situation with metal froth. Warmth exchange could subsequentessentially however with an expansion in weight drop. In this manner we can put an exclusive 200mm length of metal froth for 2.2469kW of warmth exchange for 0.0225kg/s of mass

REFERENCES Calmidi, V.V, and Mahajan, R.L., The Fibrous metal foams, J. Heat Transfer, vol. 121,pp. 466


W. Lua, C.Y Zhao, S.A.Tassau, “Thermal analysis on metalPart I: Metal- foam filled pipes” Thermal analysis on metalPart I: Metal-foam filled pipes (10 march 2006)

ShadiMahjoob, KambizVafai, “A synthesis of fluid and thermal transport models for metal foam heat exchanger’’, International Journal of Heat and Mass Transfer 51, 37013711,2008 (28 march 2008)

M. A. Delavar and M. AzimiHeat Exchangers” Journal of Engineering Science and Technology (Jan 2013)

G.A. Quadir et al, “Numerical investigation of the performance of a triple concentric pipe heat exchanger” International Journal of Heat and Mass Transfer 75 (201April 2014)


A. Nalini Deepthi

IJCIET/index.asp

Temperature drop without foam and with foam

The reproduction comes about, we watch the accompanying things: With the expansion in mass stream rate the weight drop and temperature drop increments in both the cases yet more for the situation with metal froth. Warmth exchange could subsequentessentially however with an expansion in weight drop. In this manner we can put an exclusive 200mm length of metal froth for 2.2469kW of warmth exchange for 0.0225kg/s of mass

Calmidi, V.V, and Mahajan, R.L., The Fibrous metal foams, J. Heat Transfer, vol. 121,pp. 466


W. Lua, C.Y Zhao, S.A.Tassau, “Thermal analysis on metalfoam filled pipes” Thermal analysis on metal

foam filled pipes (10 march 2006)

oob, KambizVafai, “A synthesis of fluid and thermal transport models for metal foam heat exchanger’’, International Journal of Heat and Mass Transfer 51, 37013711,2008 (28 march 2008)

M. A. Delavar and M. Azimi-“Using Porous Material for Heat TransferHeat Exchangers” Journal of Engineering Science and Technology (Jan 2013)

G.A. Quadir et al, “Numerical investigation of the performance of a triple concentric pipe heat exchanger” International Journal of Heat and Mass Transfer 75 (201


A. Nalini Deepthi

asp 501



Calmidi, V.V, and Mahajan, R.L., The effective thermal conductivity of high porosity Fibrous metal foams, J. Heat Transfer, vol. 121,pp. 466




oob, KambizVafai, “A synthesis of fluid and thermal transport models for metal foam heat exchanger’’, International Journal of Heat and Mass Transfer 51, 3701

“Using Porous Material for Heat TransferHeat Exchangers” Journal of Engineering Science and Technology (Jan 2013)



A. Nalini Deepthi



effective thermal conductivity of high porosity Fibrous metal foams, J. Heat Transfer, vol. 121,pp. 466-471, 1999.







K. Nawaz, J. Bock, Z. Dai, and A. Jacobi “ Experimental Studies to Evaluate the Use of Metal Foams in Highly Compact Air-Cooling Heat Exchangers” International

[email protected]



effective thermal conductivity of high porosity 471, 1999.

Boomsma, K., Poulikakos, D., and Zwick, F., Metal foams as compact high Performance 161-1176, 2003.

W. Lua, C.Y Zhao, S.A.Tassau, “Thermal analysis on metal-foam filled heat exchangers. foam filled pipes” Thermal analysis on metal-foam filled heat exchangers.




K. Nawaz, J. Bock, Z. Dai, and A. Jacobi “ Experimental Studies to Evaluate the Use of Cooling Heat Exchangers” International

[email protected]

The reproduction comes about, we watch the accompanying things: With the expansion in mass stream rate the weight drop and temperature drop increments in both the cases yet more for the situation with metal froth. Warmth exchange could subsequently be expanded essentially however with an expansion in weight drop. In this manner we can put an exclusive 200mm length of metal froth for 2.2469kW of warmth exchange for 0.0225kg/s of mass

effective thermal conductivity of high porosity

Boomsma, K., Poulikakos, D., and Zwick, F., Metal foams as compact high Performance 1176, 2003.

foam filled heat exchangers. foam filled heat exchangers.


“Using Porous Material for Heat Transfer Enhancement in Heat Exchangers” Journal of Engineering Science and Technology (Jan 2013)

G.A. Quadir et al, “Numerical investigation of the performance of a triple concentric pipe heat exchanger” International Journal of Heat and Mass Transfer 75 (2014) 165


[email protected]

The reproduction comes about, we watch the accompanying things: With the expansion in mass stream rate the weight drop and temperature drop increments in both the cases yet more

ly be expanded essentially however with an expansion in weight drop. In this manner we can put an exclusive 200mm length of metal froth for 2.2469kW of warmth exchange for 0.0225kg/s of mass

effective thermal conductivity of high porosity

Boomsma, K., Poulikakos, D., and Zwick, F., Metal foams as compact high Performance

foam filled heat exchangers. foam filled heat exchangers.

oob, KambizVafai, “A synthesis of fluid and thermal transport models for metal foam heat exchanger’’, International Journal of Heat and Mass Transfer 51, 3701–

Enhancement in

G.A. Quadir et al, “Numerical investigation of the performance of a triple concentric pipe 4) 165–172 (18




Refrigeration and Air Conditioning Conference, year 2010 http://docs.lib.purdue. Edu /iracc

[8] E.farsad, “Fluid flow and Heat Transfer in a Novel Microchannel Heat sink partially filled with metal foam medium” Journal of Thermal Science And Engineering Applications ( June 2014)

[9] Z.G. Qu , H.J. Xu et al “Thermal Transport in Metallic Porous Media” International Journal of Heat and Mass (2010) Transfer, Vol.53, No.21, (October 2010),

[10] V. Murali Krishna, Experimental Investigation of Heat Transfer Enhancement By Using Al2o3-Water Nanofluid In A Concentric Tube Heat Exchanger. International Journal of Mechanical Engineering and Technology, 7(6), 2016, pp. 449–458.

[11] Qasim S. Mahdi and Ali Abdulridha Hussein, Enhancement of Heat Transfer In Shell and Tube Heat Exchanger with Tabulator and Nanofluid. International Journal of Mechanical Engineering and Technology, 7(3), 2016, pp. 125–138.

ANALYSING THE METALL IC FOAM -FILLED TRIPLE TUBE … · convection then heat is conducted through...

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