relation: https://khub.utp.edu.my/scholars/7901/ title: Study of a silica gel-water based dual mode adsorption chiller creator: Habib, K. creator: Askalany, A. description: This article presents analytical investigation results on the performance of dual-mode multi-bed adsorption cooling systems using silica gel-water pair. This novel adsorption chiller utilizes effectively low-temperature solar or waste heat sources of temperature between 40 and 85°C. Two operation modes are possible for the advanced chiller. The first operation mode will be to work as a highly efficient conventional chiller where the driving source temperature is between 60 and 85°C. The second operation mode will be to work as an advanced two-stage adsorption chiller where the available driving source temperature is very low (below 60°C). In the present work, a simulation study of a dualmode, four-bed silica gel-water adsorption chiller is undertaken. For a driving source temperature above 60°C, the chiller functions as a single stage four-bed adsorption chiller. However, the chiller works as a two stage four-bed adsorption chiller when the driving source temperature falls within the range from 40°C to 60°C. With a cooling water temperature of 30°C. It has been found that this dual mode adsorption chiller is capable to provide cooling throughout the year via measuring the coefficient of performance and the cooling capacity of the system. publisher: Engg Journals Publications date: 2016 type: Article type: PeerReviewed identifier: Habib, K. and Askalany, A. (2016) Study of a silica gel-water based dual mode adsorption chiller. International Journal of Engineering and Technology, 8 (2). pp. 1010-1017. ISSN 23198613 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971500293&partnerID=40&md5=6b3ef69968191a8649fa0005f39998b9