کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7045956 | 1457096 | 2018 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental study of a new ejector-absorption refrigeration cycle driven by multi-heat sources
ترجمه فارسی عنوان
مطالعه تجربی یک چرخه یخچال جذب یخچال جدید که به وسیله منابع چند گرما هدایت می شود
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کلمات کلیدی
تجمع جذب، انژکتور برومید لیتیم، تجربی، چند منبع گرما، بهینه سازی اقتصادی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
This paper proposes a new ejector-absorption refrigeration cycle driven by two heat sources at different temperature levels to realize the economic optimization in low-grade heat recovery application. The cycle uses the exergy of steam from a high-pressure generator and entrains the steam out of a low-pressure generator. The quantity of the steam that comes out of the low-pressure generator for the new cycle is greater than that of a conventional double-effect cycle, which means that more low-temperature-level heat, such as non-focused solar thermal heat, can be used. Therefore, the heat required to input into the system and the temperature level required to drive the cycle declines. In this study, water-lithium bromide as the working pair and a hot air temperature level ranging from 185â¯Â°C to 215â¯Â°C is used as the high level driving heat source, while the hot water heated by a solar energy collector is the low level driving heat source. In some conditions of the new cycle's COP, 0.95 can be achieved for refrigeration, which is about 20% higher than that of the single-effect cycle. Besides this, the proposed chiller requires lower driven temperature than that of a conventional double-effect cycle.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 133, 25 March 2018, Pages 604-612
Journal: Applied Thermal Engineering - Volume 133, 25 March 2018, Pages 604-612
نویسندگان
Yuqi Shi, Fei Li, Daliang Hong, Qin Wang, Guangming Chen,