کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
649316 1457203 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental performance of R432A to replace R22 in residential air-conditioners and heat pumps
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Experimental performance of R432A to replace R22 in residential air-conditioners and heat pumps
چکیده انگلیسی

In this study, thermodynamic performance of R432A and HCFC22 is measured in a heat pump bench tester under both air-conditioning and heat pumping conditions. R432A has no ozone depletion potential and very low greenhouse warming potential of less than 5. R432A also offers a similar vapor pressure to HCFC22 for ‘drop-in’ replacement. Test results showed that the coefficient of performance and capacity of R432A are 8.5–8.7% and 1.9–6.4% higher than those of HCFC22 for both conditions. The compressor discharge temperature of R432A is 14.1–17.3 °C lower than that of HCFC22 while the amount of charge for R432A is 50% lower than that of HCFC22 due to its low density. Overall, R432A is a good long term ‘drop-in’ environmentally friendly alternative to replace HCFC22 in residential air-conditioners and heat pumps due to its excellent thermodynamic and environmental properties.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 29, Issues 2–3, February 2009, Pages 597–600
نویسندگان
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