Performance of Calcium Chloride- Ammonia Adsorption Refrigeration System

Abstract

An experimental study on the performance of calcium chloride-ammonia adsorption system is described. A single bed water cooled condenser adsorption refrigerator prototype, which utilises calcium chloride-ammonia pair has been developed and tested in the laboratory. Experiments have been conducted for desorption temperatures of 100 °C with desorption time varying from 1 to 4 hours. An electric tape heater and a timer were used to perform the experiments. The adsorption temperature profile, adsorption rate and prototype performance have been analysed and discussed. The tested heating and desorption temperature of 100 °C and heating and desorption time of 1 to 4 hours was able to create a cooling effect of the cold chamber of the prototype of between -0.8 to 8.3 °C, which is adequate for vaccine storage requirement of 2 to 8 °C. The estimated Coefficient of Performance of the system ranges between 0.025 and 0. 076.

Ultrasound‐Assisted Green Synthesis of 3,5‐Disubstituted Isoxazole Secondary Sulfonamides via One‐Pot Five‐Component Reaction using CaCl2/K2CO3 as Pre‐Catalyst in Water

“…In addition, it is a very common chemical used in energy efficiency, thermal engineering and in various phase change material applications. [29] It is also applied in composites with other materials to enhance their suitability for the above-revealed applications. [29] CaCl 2 is also a very common compound in laboratories, mainly used as a dehydrating agent for liquid or gas materials in desiccators or drying tubes.…”

“…In addition, it is a very common chemical used in energy efficiency, thermal engineering and in various phase change material applications [29] . It is also applied in composites with other materials to enhance their suitability for the above‐revealed applications [29] …”

“…Calcium chloride is relatively inoffensive to plants and soil and frequently use as additive (E509) in food and pharmaceutical industries. In addition, it is a very common chemical used in energy efficiency, thermal engineering and in various phase change material applications [29] . It is also applied in composites with other materials to enhance their suitability for the above‐revealed applications [29] …”

“…[29] It is also applied in composites with other materials to enhance their suitability for the above-revealed applications. [29] CaCl 2 is also a very common compound in laboratories, mainly used as a dehydrating agent for liquid or gas materials in desiccators or drying tubes. The use of CaCl 2 as a reagent, in particular as a catalyst in organic synthesis, is very rare.…”