This paper compares the R1234yf and R134a flow boiling heat transfer and pressure drop measurements inside a small microfin tube with internal diameter at the fin tip of 3.4 mm. This study is carried out in an experimental facility built at the Dipartimento di Ingegneria Industriale of the...
R1234yf as a substitute of R134a in automotive air conditioning. Solubility measurements in two commercial PAG oils R1234yf as a substitute of R134a in automotive air conditioning solubility measurements in commercial pag[C] // The 23rd IIR International Congress of ... S Bobbo,C Zilio,M Sc...
This study was to compare the performance characteristics of refrigeration system using R134a and R1234yf in a refrigeration truck. When the refrigerant charging amounts increased from 1.1 to 1.4 kg, COP of R134a system was increased and the maximum COP was 2.63 at the charge of 1.4 kg. ...
R134a是应用最为广泛的汽车空调制冷剂,但随着环保监管日益严格,自2017年起,欧美地区新款车型逐步使用HFO-1234yf制冷剂替代R134a。相较于HFC-134a,HFO-1234yf作为一款单一工质制冷剂,它的环境参数表现优异,GWP仅为4,ODP为0,生命周期内的气候性能也低于HFC-134a。 尽管HFO-1234yf制冷剂在国内外市场受到广泛推广和应...
HIGHLY海立WHP02830VUX是一款排量为:18(CC/rev)的非补气增焓定速多冷媒热泵热水器定速压缩机,适用于R134a/R513A/R1234yf制冷剂/冷媒; 海立R134a/R513A/R1234yf制冷剂定速非补气增焓压缩机WHP02830VUX适用于[1Φ],220-240V,50/60Hz电源电压:额定工况Rated Working Condition时的制热量:2805(W)、能效比COP:4.22...
制冷剂:R134a、R404A、R290、R1234yf、R22 关于Tecumseh泰康CAJ4492N-FZ型号命名规则示例: 以C*1 AJ*2 2 4 6 4 Z*3为示例 *1 ━无字母:单相低扭矩 *1━C : 单相高转矩 *1━T : 三相 *2 ━产品系列:TH、FH、RK、AEZ、AG、VS、AE、HG、AW、AJ、RG、AV *3 ━制冷剂:A-R12、C-R407C、M-...
R1234yf vs. R134a Flow Boiling Heat Transfer Inside a 3.4 mm ID Microfin Tube the R1234yf flow boiling heat transfer and pressure drop measurements inside a small microfin tube with internal diameter at the fin tip of 3.4 mm. Thi... A Diani,MT Tamura,S Mancin,... 被引量: 10发表:...
•••MeettargetsAscommonofcomponentsaspossiblebetween134aand1234yfPerformanceenhancements:–Tube/FinEvaporators–OilSeparatorCompressors–InternalHeatExchangers -DRAFT- SaturationPressure-Temperature -DRAFT- MollierDiagramOverlay R134a R1234yf 100oC 90oC90oC 80oC80oC 70o70CoC60oC60oC 5050ooCC40oC40oC...
制冷剂:R134a、R404A、R290、R1234yf、R22 关于Tecumseh泰康CAJ4492N-FZ型号命名规则示例: 以C*1 AJ*2 2 4 6 4 Z*3为示例 *1 ━无字母:单相低扭矩 *1━C : 单相高转矩 *1━T : 三相 *2 ━产品系列:TH、FH、RK、AEZ、AG、VS、AE、HG、AW、AJ、RG、AV *3 ━制冷剂:A-R12、C-R407C、M-...
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