<b>Energetic analysis of a commercial absorption refrigeration unit using an ammonia-water mixture
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چکیده
منابع مشابه
Dynamic simulation of an ammonia-water absorption refrigeration system
A dynamic model of a single-effect absorption refrigeration cycle has been developed. Modeling of the cycle performance requires thermodynamic properties which are obtained from equations of state for refrigerant-absorbent mixtures. The transient response of the absorption refrigeration cycle is investigated using mass, momentum and energy balances for the different parts of the system. Some de...
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In this study, the first and the second laws of thermodynamics (exergetic analysis) are used to analyse the performance of a single stage ammonia-water absorption cooling system operating under different working conditions. In this analysis, the performance of the system is simulated under various operating temperatures: the condenser and absorber (30 and 40°C), evaporator (-10°C, 0°C and +10°C...
متن کاملThermodynamic analysis of an absorption refrigeration system with ionic-liquid/refrigerant mixture as a working fluid
Thermodynamics of an ionic-liquid (IL) based absorption refrigeration system has been numerically analyzed. It provides an alternative to the normally toxic working fluids, such as the ammonia in conventional absorption systems. The use of ILs also eliminates crystallization and metal-compatibility problems of the water/LiBr system. Mixtures of refrigerants and imidazolium-based ILs are theoret...
متن کاملSimple Equations for Predicting Entropy of Ammonia-Water Mixture
This work presents a set of three simple and explicit equations as a function of temperature, pressure, and mass fraction for calculation of the entropy of the ammonia-water mixture in saturated and super heated conditions. They are intended for use in the optimization and second law efficiency of absorption processes. The equations are constructed by the least square method for curve fitting u...
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ژورنال
عنوان ژورنال: Acta Scientiarum. Technology
سال: 2017
ISSN: 1807-8664,1806-2563
DOI: 10.4025/actascitechnol.v39i4.29904