Primary Components 1 x 18” Cylindrical Specimens: Aluminum, Copper, Brass Cartridge Heater
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Primary Components • 1 x 18” Cylindrical Specimens: Aluminum, Copper, Brass • Cartridge Heater • AC Variac • Union Tee • Plastic Tubing • Refrigeration Unit • Wire Thermocouples • National Instruments DAQ • LabView Interface • LabView Programming • Rigid Calcium Silicate • Structured Mineral Wool • Silicone Coated Fiberglass Fabric • Painted Wooden Structure, 20 x 7.5 x 7.5”. Attached Hinges Introduction Conductive Heat Transfer Apparatus P13624 Customer Concept Development RIT Edge Link: https://edge.rit.edu/edge/P13624/public/Home Testing Conclusions Final Design Purpose Design and construct an apparatus to demonstrate the principles of thermal conductivity to future chemical engineering students Fundamental Idea Primary Needs • Safe • Accurate • Precise • Educational • Robust • Modular • Reasonable Testing Time Chemical Engineering Faculty Sponsors Karuna Koppul a Paul Gregori us Team Guide Michael Antoniades Project Manager Fielding Confer (CHME) Lead Engineer Dan Unger (CHME) Secretary Robin Basalla (CHME) Specialists Kaitlyn Higgins (CHME) Ryan Murphy (CHME) John Durfee (MECE) • Specified certain needs of the apparatus as subsystems, separate parts of a whole system • Developed ideas for each subsystem • Compared an array of subsystem configurations and combined benefits of differing concepts • The fundamental concept sandwiched a test specimen between molded insulation and housing • Transmitters and energy in/outputs attach directly • Attempts were made to estimate the maximum dimensions to minimize error Hot Side Cold Side Success • Safe • Precise • Robust • Simple Failure • Lacks needed accuracy • Lengthy experiment • Cumbersome Potential Improvements • Supplemental cold jacket and tubing to streamline material exchanges • Specimen with thermal conductivity between aluminum and copper • Smaller specimen design for faster testing • Further testing to calibrate the accuracy of the device. Current precision makes this possible • Thermocouples are precise and accurate • The refrigeration unit provides reliable temperatures • The power output from the AC variac follows a fitted model, ; V is the voltage on the variac dial • Fourier’s Law is used to solve for conductivity Temperature Gradient Hot to Cold Material Emperical Value (W/m.K) McMaster- Carr Value (W/m.K) % error Steady State Time (min) Aluminum 274 167 64.3 G60 Copper 470 388 21.1 G50 Brass 175 115 52.2 G150
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Conductive Heat Transfer Apparatus. P13624. Introduction. Purpose Design and construct an apparatus to demonstrate the principles of thermal conductivity to future c hemical e ngineering students. Fundamental Idea. Temperature Gradient Hot to Cold. Customer. Project Manager - PowerPoint PPT Presentation
Transcript of Primary Components 1 x 18” Cylindrical Specimens: Aluminum, Copper, Brass Cartridge Heater
Primary Components• 1 x 18” Cylindrical Specimens: Aluminum, Copper, Brass• Cartridge Heater• AC Variac• Union Tee• Plastic Tubing• Refrigeration Unit• Wire Thermocouples• National Instruments DAQ • LabView Interface• LabView Programming• Rigid Calcium Silicate• Structured Mineral Wool• Silicone Coated Fiberglass Fabric• Painted Wooden Structure, 20 x 7.5 x 7.5”. Attached Hinges
Introduction
Conductive Heat Transfer Apparatus P13624
Customer
Concept Development
RIT Edge Link: https://edge.rit.edu/edge/P13624/public/Home
Testing Conclusions
Final Design
PurposeDesign and construct an apparatus to demonstrate the principles of thermal conductivity to future chemical engineering students
Fundamental Idea
Primary Needs• Safe• Accurate• Precise• Educational• Robust• Modular• Reasonable Testing Time
Chemical Engineering
Faculty Sponsors
Karuna Koppula
Paul Gregorius
Team GuideMichael Antoniades
Project ManagerFielding Confer (CHME)
Lead EngineerDan Unger (CHME)
SecretaryRobin Basalla (CHME)
SpecialistsKaitlyn Higgins (CHME)Ryan Murphy (CHME)John Durfee (MECE)
• Specified certain needs of the apparatus as subsystems, separate parts of a whole system
• Developed ideas for each subsystem• Compared an array of subsystem configurations and combined
benefits of differing concepts• The fundamental concept sandwiched a test specimen
between molded insulation and housing• Transmitters and energy in/outputs attach directly• Attempts were made to estimate the maximum dimensions to
minimize errorHot Side Cold Side
Success• Safe• Precise• Robust• Simple
Failure• Lacks needed accuracy• Lengthy experiment• Cumbersome
Potential Improvements• Supplemental cold jacket and tubing to
streamline material exchanges• Specimen with thermal conductivity between
aluminum and copper• Smaller specimen design for faster testing• Further testing to calibrate the accuracy of the
device. Current precision makes this possible
• Thermocouples are precise and accurate
• The refrigeration unit provides reliable temperatures
• The power output from the AC variac follows a fitted model, ; V is the voltage on the variac dial
• Fourier’s Law is used to solve for conductivity
Temperature GradientHot to Cold
Material Emperical Value (W/m.K)
McMaster-Carr Value (W/m.K) % error Steady State
Time (min)
Aluminum 274 167 64.3 ̴�60
Copper 470 388 21.1 ̴�50
Brass 175 115 52.2 ̴�150
