Possibilities of Integrating Adsorption Chiller with Solar Collectors for Polish Climate Zone

Abstract

Solar-powered adsorption chillers are a particularly interesting alternative to energy-intensive conventional refrigeration systems. Integration of the adsorption chiller with solar collectors is a very promising concept since the increase in solar radiation coincides with the increased demand for cooling. Such a solution is very economical and environmentally friendly. It also fits in with current trends related to energy policy and sustainable development. The article presents the results of tests conducted for a two-bed adsorption chiller integrated with solar collectors. The tests were performed on selected days of the summer period (July and August) at the KEZO Research Centre PAS in Jablonna (Poland). Based on the results obtained, the performance parameters of the adsorption chiller were determined, and the problems associated with the integration of all components of the system were identified and discussed. The values of the determined Coefficient of Performance (COP) and cooling capacity for the tested adsorption chiller are, depending on the day on which the tests were conducted, from 0.531 to 0.692 and from 5.16 kW to 8.71 kW, respectively. Analysis of the test results made it possible to formulate conclusions related to the design of integrated systems of adsorption chillers with solar collectors.

Thermodynamic analysis of absorption refrigeration cycles by parabolic trough collectors

“…The results indicated that the maximum absorption capacity and values of COP and SCP were almost 0.12, 0.25, and 7 W/kg, respectively. In addition, Bujok et al 20 evaluated the possibilities of employing solar collectors (Kingspan Thermomax collector) to power a two-bed adsorption chiller under the climatic conditions of Poland considering the issues related to the integration of all system units. They reported that the value of COP and cooling capacity were 0.531-0.692 and 5.16-8.71 kW, respectively.…”

“…19 Parabolic-shaped collectors are the most advanced and comprehensive solar concentrating collectors based on numerous tests, and their technology is the most approved technology among other types of solar concentrating collectors. 20 Liang et al 21 presented progress in full spectrum solar energy utilization by the spectral beam splitting hybrid PV/T system. Basdanis et al 22 presented a performance optimization of a solar adsorption chiller by dynamically adjusting the half-cycle time.…”