Study of carbon dioxide condensation in chevron plate exchangers; pressure drop analysis

被引：17

作者：

Hayes, Niel ^{[2
]}

Jokar, Amir ^{[1
]}

Ayub, Zahid H. ^{[3
]}

机构：

[1] ThermoFluids Tech, Vancouver, WA 98665 USA

[2] Browns Hill Engn & Controls LLC, Littleton, CO 80127 USA

[3] Isotherm Inc, Arlington, TX 76001 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2012年 / 55卷 / 11-12期

关键词：

Carbon dioxide; Cascade condensers; Environmentally-friendly refrigerant; Global warming; Plate heat exchanger; Pressure drop; HEAT-TRANSFER; PERFORMANCE;

D O I：

10.1016/j.ijheatmasstransfer.2012.02.013

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Condensation pressure drop of carbon dioxide in brazed plate heat exchangers was investigated, and is presented in this paper. Carbon dioxide is known as an environmental friendly refrigerant with an Ozone Depletion Potential (ODP) equal to zero and Global Warming Potential (GWP) equal to unity, and has favorable thermodynamic and transport properties though it requires higher operating pressures (similar to 45-30 bar). Brazed-type plate heat exchangers that can withstand high pressure are a good choice for such applications. This paper presents the procedure, data collection, and results for three brazed plate heat exchangers with different inner geometries. The test exchangers showed good performance at high system pressures with reasonable pressure drops (less than 8%). The collected experimental data that covered real world operating conditions are valuable for the design of cascade condensers with carbon dioxide as the low-side refrigerant. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：2916 / 2925

页数：10

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