Open AccessSimulation of Lithium Bromide- Water (LiBr-H2O) Vapor Absorption System (VAS) powered by Solar Flat Plate Collector (SFPC)
Author(s) -
Salem Alabd Mohamed,
Munawar Nawab Karimi
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/691/1/012031
Subject(s) - lithium bromide , water vapor , lithium (medication) , materials science , absorption (acoustics) , bromide , absorption refrigerator , chemistry , composite material , inorganic chemistry , mechanical engineering , engineering , organic chemistry , heat exchanger , medicine , refrigeration , endocrinology
Solar energy may probably prove to be best option for future in air conditioning system. With growing need of energy consumption, the solar air conditioning system stands as a useful alternative. The objective of this work is to simulate a single effect LiBr-H 2 O absorption system, coupled with solar flat plate collector (SFPC), to supply heat to the generator of Vapor Absorption System (VAS). Case studies have been taken from India, particularly New Delhi and Mumbai, which are, respectively, known for their hot and humid climate. The influence of different parameters like inlet generator temperature, heat supplied to the generator and cooling load have been investigated. The design day of 15 th of April, May and June has been considered. The thermodynamic analyses have also been carried out. An outlet solar collector temperature between 68°C and 78°C was maintained for New Delhi, whereas between 67°C and 79°C for Mumbai. The maximum efficiency of SFPC was found to be 50 percent and 51 percent in case of New Delhi and Mumbai, respectively, on 15 th April and 15 th of May. A coefficient of performance of 0.857 was obtained at 4.1033 kWof heat supplied to the generator, at an inlet generator temperature of 68°C and cooling load of 3.5167 kW. It was observed that at constant , any increase in supply heat, increases the flow rate of vapor and cooling load. Furthermore, the analysis for various stages of single effect LiBr-H 2 O (VAS) is presented including the design of the evaporator, absorber, condenser, heat exchanger and generator.