Aug 11, 2015 · This paper presents experimental results on boiling heat transfer of R134a in a compact plate fin heat exchanger. The exchanger is made of aluminum and has high density offset fins (30 fins/in.). Such heat exchangers are widely used in air separation industry and aerospace applications because of their high compactness and low weight.
Brazed Plate Heat Exchangers. The compact size, low refrigerant charge, and superior heat transfer characteristics of Doucette's Brazed Plate Heat Exchangers make them ideal for evaporator, condenser and sub-cooler applications. Available for virtually any duty, the Brazed Plate Heat Exchangers are available with copper or nickel brazing materials. Standard units have 316 Stainless Steel plates with Brazed compact plate fin heat exchanger - Heat and Mass May 07, 2016 · The test condenser is a brazed compact plate fin heat exchanger with serrated fin surface. The schematic of the serrated fin geometry is shown in Fig. 2. The flow in offset fins is highly turbulent even at low Reynolds number. The test unit is basically a cross flow arrangement with two passes on the water side and one pass on R134a side.
a Brazed Plate Heat Exchanger (BPHE) fed with hot water to achieve the desired value of vapor quality. The hot water is supplied by a thermostatic bath; both water flow rate and water temperature can be independently set. The heat flow rate exchanged at the BPHE evaporator is accurately measured by means of a magnetic flow meter and a calibrated Refrigerant R134a vaporisation heat transfer and pressure Aug 01, 2007 · This paper presents the experimental heat transfer coefficients and pressure drop measured during refrigerant R134a vaporisation inside a small brazed plate heat exchanger (BPHE):the effects of heat flux, refrigerant mass flux, saturation temperature and
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May 24, 2017 · The saturated flow boiling heat transfer and friction analysis of R 134a were experimentally analyzed in a brazed plate fin heat exchanger with offset strip fins. Experiments were performed at mass flux range of 5082 kg/m 2 s, heat flux range of 1422 kW/m 2 and quality of 0.320.75. The test section consists of three fins, one refrigerant side fin in which the boiling heat transfer
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