| Abstract [eng] |
Cooling is used in many aspects of human life. Adsorption chiller saves energy by using waste heat to address refrigeration and / or air conditioning needs. The end users includes food and beverage processors, universities, hospitals, chemical processors, other manufactures and large government facilities. The zeolite based adsorption chiller is an equipment that is used to provide the cooling effect in the cooling plants. These chillers can generate cold even at relatively low drive temperatures from 50 ºC and up. The zeolite based adsorption chillers are suitable for heat sources like waste heat due to lower regeneration temperature required. The aim of the master‘s thesis is to improve the performance of the zeolite based adsorption chillers. One of the study is to investigate the adsorption cooling process that facilitates the operation of zeolite based adsorption chillers connected in series based on the stratisorp concept, by the use of the stratified thermal storage tank for the thermal heat recovery. According to the stratisorp concept of heat recovery, the heat of adsorption released during the adsorption half cycle is stored in a stratified thermal storage tank for later use in desorption half cycle thereby achieving internal heat recovery. The adsorber module is cooled and heated by extracting water from the stratified thermal storage tank. The existing setup consists of single adsorption chiller. The mixing taking place in the tank during the extraction and insertion of the fluid adversely affects the performance of the adsorption chiller cycle. The key goal of this work is at improving the cooling COP of the zeolite based chillers to maximize the potential of the CCHP application using the stratisorp concept by integration of the second adsorption chiller in series. The work presents the practical study of the cycle efficiency, which may lead to improve the performance of the cooling process. |
