[PDF] Top 20 A solar ejector cooling system using refrigerant R141b
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A solar ejector cooling system using refrigerant R141b
... A solar ejector cooling system using refrigerant R141b 225 exceeding the critical back pressure, the choking The solar ejector ... See full document
4
Performance of ejector cooling system with thermal pumping effect using R141b and R365mfc
... MFG B pressure is lower than the condenser, the check valve is opened to induce the liquid refrigerant return from the ...MFG B enters into the liquid intake phase with the evacuation chamber still ... See full document
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Collector selection for solar ejector cooling system
... of a solar ejector cooling system is simulated using three different collectors: a conventional flat plate collector, a high efficiency flat plate collector and ... See full document
6
Performance optimization for a variable throat ejector in a solar refrigeration system
... An ejector test rig with a cooling capacity of ...The ejector test rig equipment included the following nine major components: an experimental ejector, a generator, an ... See full document
9
Development of an ejector cooling system with thermal pumping effect
... Syste`me a` e´jecteur ; R-141b ; Ge´ne´rateur ; Vapeur ; COP ...Conventional cooling systems utilize Freon compressors that are driven by ...of cooling, and air-conditioning ... See full document
9
System performance and economic analysis of solar-assisted cooling/heating system
... The system simulation for the cooling performance of SACH-2 is used to calculate the required solar collector ...required solar collector area is 40 m 2 in Taipei and 31 m 2 in Tainan, for COP ... See full document
9
Optimal control and performance test of solar-assisted cooling system
... evaporator cooling capacity of the ECS is designed at ...The ejector cooling system and the inverter-type air conditioner operate ...is a microprocessor-based central control ... See full document
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Investigation of an experimental ejector refrigeration machine operating with refrigerant R245fa at design and off-design working conditions. Part 1. Theoretical analysis
... of cooling and air-conditioning systems in summer causes a serious electrical peak load problem, and electrical power generation has an environmental impact as ...including solar thermal, waste and ... See full document
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System performance of R-1234yf refrigerant in air-conditioning and heat pump system - An overview of current status
... the system per- formance of R-1234yf in association with ...of R- 1234yf is zero and its GWP is as low as 4. R-1234yf also features and has a very low toxicity compared with ... See full document
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Investigation of an experimental ejector refrigeration machine operating with refrigerant R245fa at design and off-design working conditions. Part 2. Theoretical and experimental results.
... each ejector geometry, an independent nozzle exit position test was carried ...maximum ejector performance, was used to test each ejector under design and off-design operating ...the system ... See full document
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Design-theoretical study of cascade CO2 sub-critical mechanical compression/butane ejector cooling cycle
... Compression Ejector a b s t r a c t In this paper an innovative micro-trigeneration system composed of a cogeneration system and a cascade refrigeration ... See full document
8
Solar car aerodynamic design for optimal cooling and high efficiency
... the solar cell tempera- ture require solving the complete set of aerodynamical ...the solar cell reaching its steady-state temperature is ...by using approximate relations derived from the boundary ... See full document
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An overview of the System Performance of R-1234yf Refrigerant in Air-conditioning and Heat Pump System
... 失及較低的循環效率。對於一般低壓工作流體 R-134a和R-1234yf，在公開文獻上很少使用噴 射器來改善性能，這是因為比起使用二氧化 碳，它們更難成功地以標準的兩相噴射器循環 去執行。 Lawrence和Elbel[28]開發一種替代的 兩相噴射器的循環，藉由噴射器提供壓力的 提升來提供多種的蒸發溫度。噴射器基礎的循 環是Oshitani等人的專利[29]，可參考圖5(a)和 ... See full document
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Condensation heat transfer and pressure drop of refrigerant R-134a in a small pipe
... been a number of studies reported in the literature to investigate the boiling and condensation heat transfer associated with these HFC refrigerants[ The data from these studies are bene_cial to the design of the ... See full document
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Evaporation heat transfer and pressure drop of refrigerant R-134a in a small pipe
... for refrigerant R!023a ~owing in a horizontal small circular pipe having an inside diameter of 1[9 mm[ The data are useful in designing more compact and e}ective evaporators for various ... See full document
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Saturated flow boiling heat transfer of refrigerant R-410A in a horizontal annular finned duct
... the refrigerant mass flux and satu- rated temperature on the saturated flow boiling heat trans- fer of R-410A in the horizontal annular finned duct are illustrated in ...at a fixed T sat and for ... See full document
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Condensation heat transfer and pressure drop of refrigerant R-134a in a plate heat exchanger
... experimental refrigerant loop has been established in the present study to measure the condensation heat transfer ...h r and frictional pressure drop DP f of R!023a in a vertical plate ... See full document
14
Condensation heat transfer and pressure drop of refrigerant R-410A flow in a vertical plate heat exchanger
... 2.1. Refrigerant flow loop The refrigerant loop contains a variable-speed refrig- erant pump that delivers the subcooled refrigerant to the ...The refrigerant mass flow rate is mainly ... See full document
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Evaporation heat transfer and pressure drop of refrigerant R-410A flow in a vertical plate heat exchanger
... Recently, a number of investigations on PHEs were reported in the open ...of R-134a in a vertical plate heat ...for R-134a flowing in the PHE was much higher than that in ... See full document
6
A Transient Method Using Liquid Crystal for Film Cooling Over a Convex surface
... The present measured results show that both the spanwise averaged heat transfer coefficient and film cooling effectiveness increase with decreased blowing ratio.. Keywords: Convex surfac[r] ... See full document
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