دانلود مقاله ISI انگلیسی شماره 56905
ترجمه فارسی عنوان مقاله

تجزیه و تحلیل ترمودینامیکی یک سیستم خنک کننده و سیستم قدرت ترکیبی جدید با استفاده از مخلوط آب و آمونیاک

عنوان انگلیسی
Thermodynamic analysis of a new combined cooling and power system using ammonia–water mixture
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
56905 2016 8 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Energy Conversion and Management, Volume 117, 1 June 2016, Pages 335–342

ترجمه کلمات کلیدی
سیستم ترکیبی خنک کننده و قدرت، آب و آمونیاک - تجزیه و تحلیل اکسرژی؛ تجزیه و تحلیل ترمودینامیکی
کلمات کلیدی انگلیسی
Combined cooling and power system; Ammonia–water; Exergy destruction analysis; Thermodynamic analysis
پیش نمایش مقاله
پیش نمایش مقاله  تجزیه و تحلیل ترمودینامیکی یک سیستم خنک کننده و سیستم قدرت ترکیبی جدید با استفاده از مخلوط آب و آمونیاک

چکیده انگلیسی

In order to achieve both power and cooling supply for users, a new combined cooling and power system using ammonia–water mixture is proposed to utilizing low grade heat sources, such as industrial waste heat, solar energy and geothermal energy. The proposed system combines a Kalina cycle and an ammonia–water absorption refrigeration cycle, in which the ammonia–water turbine exhaust is delivered to a separator to extract purer ammonia vapor. The purer ammonia vapor enters an evaporator to generate refrigeration output after being condensed and throttled. Mathematical models are established to simulate the combined system under steady-state conditions. Exergy destruction analysis is conducted to display the exergy destruction distribution in the system qualitatively and the results show that the major exergy destruction occurs in the heat exchangers. Finally a thermodynamic sensitivity analysis is performed and reveals that with an increase in the pressure of separator I or the ammonia mass fraction of basic solution, thermal efficiency and exergy efficiency of the system increase, whereas with an increase in the temperature of separator I, the ammonia–water turbine back pressure or the condenser II pressure, thermal efficiency and exergy efficiency of the system drop.