TY - CONF KW - Activated carbon; Adsorption; Cooling water; Waste heat KW - Adsorption chiller; Adsorption/desorption; Cooling water temperature; Cycle performance; Low-grade waste heat; Operating condition; Simulation program; Thermally driven KW - Cooling systems KW - activated carbon; adsorption; cooling; energy efficiency; performance assessment; regeneration; theoretical study TI - Study on two stage activated carbon/HFC-134a based adsorption chiller ID - scholars3969 N2 - In this paper, a theoretical analysis on the performance of a thermally driven two-stage four-bed adsorption chiller utilizing low-grade waste heat of temperatures between 50°C and 70°C in combination with a heat sink (cooling water) of 30°C for air-conditioning applications has been described. Activated carbon (AC) of type Maxsorb III/HFC-134a pair has been examined as an adsorbent/refrigerant pair. FORTRAN simulation program is developed to analyze the influence of operating conditions (hot and cooling water temperatures and adsorption/desorption cycle times) on the cycle performance in terms of cooling capacity and COP. The main advantage of this two-stage chiller is that it can be operational with smaller regenerating temperature lifts than other heat-driven single-stage chillers. Simulation results shows that the two-stage chiller can be operated effectively with heat sources of 50°C and 70°C in combination with a coolant at 30°C. © Published under licence by IOP Publishing Ltd. N1 - cited By 1; Conference of 26th IAHR Symposium on Hydraulic Machinery and Systems ; Conference Date: 19 August 2012 Through 23 August 2012; Conference Code:95632 AV - none CY - Beijing VL - 16 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84881106560&doi=10.1088%2f1755-1315%2f16%2f1%2f012084&partnerID=40&md5=b882e8ad4f469c63c1cca9cf6fa4e10f A1 - Habib, K. A1 - Majid, M.A.B.A. A1 - Sulaiman, S.A.B. SN - 17551307 PB - Institute of Physics Publishing Y1 - 2013/// ER -