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![References4
1. 房煦峰 . 潜 回收型 射式制冷性能分析及 射器数 模热 喷 喷 值 拟 [D]. 大 海事大连
学 , 2014.
2. 董景明 . 高效 射式制冷系 性能的理 与 研究喷 统 论 实验 [D]. 大 海事大学连 ,
2012.
3. Chen J, Havtun H, Palm B. Conventional and advanced exergy analysis of
an ejector refrigeration system[J]. Applied Energy, 2015,144:139-151.
4. Sadeghi M, Mahmoudi S M S, Khoshbakhti Saray R. Exergoeconomic
analysis and multi-objective optimization of an ejector refrigeration cycle
powered by an internal combustion (HCCI) engine[J]. Energy Conversion
and Management, 2015,96:403-417.](https://image.slidesharecdn.com/ejector-150526040408-lva1-app6891/85/An-ejector-refrigeration-cycle-19-320.jpg)
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An ejector refrigeration cycle
- 1. An ejector refrigerationcycle powered by an internal combustion engine Reporter: Chenliang Professor : Sumin Jin
- 2. CONTENT Part One Introduction Part Two Workingprinciple Part Three Performance of an ejector refrigeration Part Four References
- 3. Total energy consumed China isnow the world second largest energy producer and consumer Annual growth rate The average annual growth rate of energy consumed is up to 5.9% Comprehensive utilization of energy High energy consumption per unit of output Its value is 8.7 times, 4.9 times and 2.5 times that of the Japan , European Union and United States. 18% 5.9% 33% Introduction1
- 4. 1 Solar energy 2 Geothermal energy 3 Internalcombustion engines 4 Waste heat from industrial processes Introduction1
- 5. Introduction1 Thermodynamic analysis Computational fluiddynamics (CFD) analysis experimental research Predict the performance of ejector , different refrigerant, structure parameters of ejector , nozzle position, multistage injection system
- 6.
- 7. CONTENT Part One Introduction Part Two Workingprinciple Part Three Performance of an ejector refrigeration Part Four References
- 8.
- 9.
- 10. 1 2 3 These systems aremore reliable because there have almost no moving part. They have more potential to be environmental friendly. Especially, water can be used as refrigerant. They are relatively inefficient. In an ejector refrigeration cycle, the key problem is the ejector design. Working principle2
- 11. CONTENT Part One Introduction Part Two Workingprinciple Part Three Performance of an ejector refrigeration Part Four References
- 12. Performance of anejector refrigeration3 Refrigerant :R141b Heat resource: exhaust gases Inlet of generator:251.95℃, 100KPa, 0.253kg/s Outlet of generator:98℃, 100KPa, 0.253kg/s Cooling water: Tcond,inlet=-5℃, Tcond,outlet=-2℃ Chilled water ： Teva,inlet=-5℃, Teva,outlet=-2℃
- 13. Performance of anejector refrigeration3 The refrigeration capacity and coefficient of performance increases as the evaporator temperature increases and increase as the generator temperature increase.
- 14. Performance of anejector refrigeration3 1. The refrigeration capacity decreases as the condenser temperature increases. 2. The exergy efficiency decreases as the condenser temperature increases.
- 15. Performance of anejector refrigeration3 The exergy efficiency and product unit cost at this point are obtained as 3.095% and 201.7$/GJ, respectively.
- 16. Performance of anejector refrigeration3 1. Generator and ejector have highest exergy destruction. 2. Total exergy destruction and exergy loss from the system to ambition are 91.96% and 4.95%, respectively.
- 17. Performance of anejector refrigeration3 Conclusions 1. When the ejector refrigeration system works at a generator, a condenser and an evaporator temperatures of 94.54, 33.44 and 0.03 , respectively, the℃ system has an optimal performance. 2. the product unit cost for the present work, obtained under optimized condition, is 201.7 $/GJ which is comparatively more expensive than the corresponding value for the absorption refrigeration systems. 3. The product unit cost for the present work, obtained under optimized condition, is 201.7 $/GJ which is comparatively more expensive than the corresponding value for the absorption refrigeration systems.
- 18. CONTENT Part One Introduction Part Two Workingprinciple Part Three Performance of an ejector refrigeration Part Four References
- 19. References4 1. 房煦峰 .潜 回收型 射式制冷性能分析及 射器数 模热 喷 喷 值 拟 [D]. 大 海事大连 学 , 2014. 2. 董景明 . 高效 射式制冷系 性能的理 与 研究喷 统 论 实验 [D]. 大 海事大学连 , 2012. 3. Chen J, Havtun H, Palm B. Conventional and advanced exergy analysis of an ejector refrigeration system[J]. Applied Energy, 2015,144:139-151. 4. Sadeghi M, Mahmoudi S M S, Khoshbakhti Saray R. Exergoeconomic analysis and multi-objective optimization of an ejector refrigeration cycle powered by an internal combustion (HCCI) engine[J]. Energy Conversion and Management, 2015,96:403-417.
- 20. Thank you forwatching Reporter: Chenliang Professor : Sumin Jin