کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4991695 1457117 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental investigation on a capillary tube based transcritical CO2 heat pump system
ترجمه فارسی عنوان
آزمایش های تجربی بر روی یک لوله مویرگی بر پایه سیستم پمپ گرمابینی دی اکسید کربن
کلمات کلیدی
پمپ گرماگرایی، مویرگی ضریب عملکرد، دی اکسید کربن،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
In this study, a transcritical CO2 heat pump system using a capillary tube as an expansion device was experimentally investigated. A prototype was developed for this purpose. Experimental study was conducted under different outdoor and indoor temperatures. The results showed that the system cooling capacity and coefficient of performance (COP) dropped by 22% and 24%, respectively as the outdoor air temperature increased from 30 to 40 °C and increased by 12% and 15%, respectively as the indoor air temperature increased from 22 to 32 °C. The system performance was further compared with the transcritical CO2 heat pump using an electronic expansion valve (EEV) at different gas-cooler outlet temperatures. The comparison results showed that the transcritical CO2 heat pump using the capillary tube is promising and could achieve performance close to the heat pump using EEV over a wide range of gas-cooler outlet temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 112, 5 February 2017, Pages 184-189
نویسندگان
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