Dynamic Simulation of an Absorption Cooling System with Different Working Mixtures

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...

Optimization of Solar Absorption Cooling System Considering Hourly Analysis

Thermal modelling and optimal design of a solar absorption cooling system are presented, and hourly analysis is performed over the period of a year. Three design parameters are considered, then the Real Parameter Genetic Algorithm (RPGA) is applied to obtain the minimum total annual cost. The optimization results show that the solar cooling optimum configuration needs 1630 square meter collecto...

Dynamic Performance Analysis for an Absorption Chiller under Different Working Conditions

Due to the merits of energy saving and environmental protection, the absorption chiller (AC) has attracted a lot of attention, and previous studies only concentrated on the dynamic response of the AC under a single working condition. However, the working conditions are usually variable, and the dynamic performance under different working conditions is beneficial for the adjustment of AC and the...

Dynamic Simulation of an Industrial Rotary Dryer

Performance Simulation of Ionic Liquid and Hydrofluorocarbon Working Fluids for an Absorption Refrigeration System

The theoretical performance of ionic-liquid(IL-) based working fluids in an absorption refrigeration system was investigated. The IL 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]) and five hydrofluorocarbons (HFCs) were selected as the absorbent and refrigerant, respectively. The Redlich−Kwong equation of state and two-phase pressure-drop model were used to compute the thermodyna...