A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry....
Transcript of A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry....
![Page 1: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/1.jpg)
A novel design of SOFC combined cooling, heat and power (CCHP)
residential system in the UK
Xinjie Yuan
![Page 2: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/2.jpg)
• Professor Richard Bucknall
Department’s Director of Research
• Dr Yuanchang Liu
![Page 3: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/3.jpg)
Outline
1. Introduction
2. Literature review
3. Simulations & Results
4. Discussions & Future work
![Page 4: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/4.jpg)
1. Introduction - Background
• Space and water heating
• Electric vehicles newly registered
• Charging & New peak periods
Total energy consumption
Industry Domestic Transportation Service
Natural gas Electricity
Heat, cooling and power demand
SOFC combined cooling, heat and power (CCHP) residential system in the UK
Supply side
• Regulations for new dwellings
• Insulated homes
• Alternative systems
• Doubled prices
• Rising peak temperatures
Fuel cell
• Energy conversion
• Lower heat to power ratio
• Thermal insulation
• High temperature fuel cell
![Page 5: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/5.jpg)
1. Introduction
• Main research question:
• SOFC-based CCHP systems
• Historic demand data
• Tri-influence (Efficiency, Environmental and Economic impacts)
• Sizing values (Number of fuel cells, heat exchanger and absorption chiller)
• Objective weighting coefficients
![Page 6: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/6.jpg)
2. Literature review
• Part of the review table
![Page 7: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/7.jpg)
2. Literature review
• Example
![Page 8: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/8.jpg)
2. Literature review• Distribution of fuel cells and cooling devices
![Page 9: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/9.jpg)
2. Literature review
1. System modelling (Electrical & Thermal model)
2. Fuel inlet (Natural gas or Hydrogen)
3. Cooling: Freezer/Refrigerator (Heat-driven or Power demand)
4. Sizing methods (Subjective or Objective)
![Page 10: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/10.jpg)
3. Simulations & Results
![Page 11: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/11.jpg)
3. Simulations & Results
Single cell system modelling
Electrical only system
SOFC CCHP system
![Page 12: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/12.jpg)
3. Simulations & Results
![Page 13: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/13.jpg)
3. Simulations & Results• Electrochemical reaction modelling (Simulink)
![Page 14: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/14.jpg)
3. Simulations & Results
• Three main over-voltages
![Page 15: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/15.jpg)
3. Simulations & Results
• At various temperatures
![Page 16: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/16.jpg)
3. Simulations & Results
Singhal, S. C. (1996) ‘Advances in Tubular Solid Oxide Fuel Cell Technology’, 1996 Fuel Cell Seminar, 135, pp. 28–31.Carl, M. J. (2008) ‘SOFC Modeling for the Simulation of Residential Cogeneration Systems‘.
• Double reference validations
![Page 17: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/17.jpg)
3. Simulations & Results
• Cell voltage and power output
![Page 18: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/18.jpg)
3. Simulations & Results
• Validation for specific heat capacity and equilibrium constant
1) Heat capacity from: Spiegel, C. (2008) ‘Fuel Cell Thermodynamics’, PEM fuel cell modeling and simulation using Matlab /. Burlington, Mass. ,pp. 15–48. doi: 10.1016/B978-012374259-9.50003-3.2) Equilibrium constant from: Callaghan, C. (2006) ‘Kinetics and Catalysis of the Water-Gas-Shift Reaction’.
![Page 19: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/19.jpg)
3. Simulations & Results
• State-points main properties
![Page 20: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/20.jpg)
3. Simulations & Results
Single cell system modelling
Electrical only system
SOFC CCHP system
![Page 21: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/21.jpg)
3. Simulations & Results
1.Grey relationship analysis
2.Entropy-weighting approach
![Page 22: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/22.jpg)
3. Simulations & Results• Evaluation of number of cells
![Page 23: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/23.jpg)
3. Simulations & Results
Single cell system modelling
Electrical only system
SOFC CCHP system
![Page 24: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/24.jpg)
3. Simulations & Results
![Page 25: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/25.jpg)
3. Simulations & Results• Flow chart of the evaluation of SOFC CCHP system
![Page 26: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/26.jpg)
3. Simulations & Results
![Page 27: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/27.jpg)
3. Simulations & Results
HX 1: Air preheating
HX 2 & Abc 1: Freezer
HX 3: Domestic hot water
HX 4 : Space heating
Priority value
• Evaluation of SOFC CCHP system on the coldest day
![Page 28: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/28.jpg)
3. Simulations & Results• Evaluation of SOFC CCHP system on the hottest day
HX 5: Space cooling
Abc 1: Space cooling
Priority value
![Page 29: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/29.jpg)
3. Simulations & Results
![Page 30: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/30.jpg)
3. Simulations & Results
• SOFC CCHP system: 91.78% on the coldest day
• SOFC CCHP system: 88.16% on the hottest day
![Page 31: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/31.jpg)
3. Simulations & Results• Comparative analysis 1
- Separated production (SP) system – 20% H2NG-SOFC CCHP system
![Page 32: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/32.jpg)
3. Simulations & Results• Comparative analysis 1
- Separated production (SP) system – 20% H2NG-SOFC CCHP system
(Winter) SP 20% H2NG-SOFC CCHP
Efficiency 79% 91.78%
Investment cost (£) 1248.17 3059.50
Energy cost (pence) 265.72 68.83
Emission (mg/s) 9.15 3.71
(Summer) SP 20% H2NG-SOFC CCHP
Efficiency 47% 88.16%
Investment cost (£) 1248.17 3059.50
Energy cost (pence) 101.22 26.55
Emission (mg/s) 4.62 2.07
![Page 33: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/33.jpg)
3. Simulations & Results• Comparative analysis 2
- NG-SOFC CCHP system – 20% H2NG-SOFC CCHP system
(Winter) NG-SOFC CCHP 20% H2NG-SOFC CCHP
Efficiency 90.96% 91.78%
Investment cost (£) 3059.50 3059.50
Energy cost (pence) 73.98 68.83
Emission (mg/s) 3.99 3.71
(Summer) NG-SOFC CCHP 20% H2NG-SOFC CCHP
Efficiency 87.71% 88.16%
Investment cost (£) 3059.50 3059.50
Energy cost (pence) 28.97 26.55
Emission (mg/s) 2.26 2.07
![Page 34: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/34.jpg)
4. Discussions & Future work
1. Fuel inlet
2. Different occupancy profiles
3.Multiple households
4. Energy storage system
5. Power control & Power quality control
![Page 35: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/35.jpg)
Review of presentation
1. Literature review
2. Single cell & CCHP system modelling
3. Number of cells & sizing values
4. Entropy weighting approach & Grey relationship analysis
![Page 36: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/36.jpg)
Thank you !
![Page 37: A novel design of SOFC combined cooling, heat and power ... · Total energy consumption. Industry. Domestic. Transportation. Service. Natural gas. Electricity. Heat, cooling and power](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a203d4587bdc49dd7b4da4/html5/thumbnails/37.jpg)
Q & A