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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Fu, Lin Zhao, Xiling Zhang, Shigang Jiang, Yi Li, Hui Yang, Weiwei Sun, Zuoliang |
| Copyright Year | 2008 |
| Abstract | It is well known that combined heating and power (CHP) generation permits the energy of the fuel to be more efficiently than electric and thermal separate generation. The paper deals with natural gas CHP system with a 70kWe gas-powered internal combustion engine (ICE), which has been set up at the Tsinghua University energy-saving building, in Beijing, China. The system is composed of an ICE, a flue gas heat exchanger and other heat exchangers. The conventional system’s characteristics is that the gas engine generates power on-site, and the exhaust of the gas engine is recovered by a high temperature flue gas-water heat exchanger, and the jacket water heat is recovered by a water-water heat exchanger to supply heat for district heating system. In order to improve the system’s performance, an innovative system with absorption heat pump is adopted. The exhaust of the gas engine drives an absorption heat pump to recover the flue gas sensible heat and further recover the latent heat, so the outlet temperature of the exhaust could be lowered to 50°C. In this paper, the electrical and thermal performance of the innovative system were tested and compared with conventional cogeneration systems. The test and comparison results show that the innovative CHP system could increase the heat utilization efficiency 10% in winter. All the results provide important insight into CHP performance characteristics and could be valuable references for CHP system’s improvements. |
| Sponsorship | Advanced Energy Systems Division and Solar Energy Division |
| Starting Page | 769 |
| Ending Page | 776 |
| Page Count | 8 |
| File Format | |
| ISBN | 9780791843192 |
| DOI | 10.1115/ES2008-54157 |
| e-ISBN | 0791838323 |
| Volume Number | ASME 2008 2nd International Conference on Energy Sustainability, Volume 1 |
| Conference Proceedings | ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences |
| Language | English |
| Publisher Date | 2008-08-10 |
| Publisher Place | Jacksonville, Florida, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Water Latent heat Temperature Heat exchangers High temperature Combined heat and power Fuels Engines Exhaust systems Central heating Flues Performance characterization Heat Absorption Heat pumps Cogeneration systems Heating China Internal combustion engines Flue gases Natural gas |
| Content Type | Text |
| Resource Type | Article |
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