RT Journal Article ID 7f3483021347a2f0 A1 Li, Jianbo A1 Xu, Shiming A1 Kong, Shaokang T1 INVESTIGATION OF THE ABSORPTION−COMPRESSION HYBRID REFRIGERATION APPLIED TO THE COACH AIR CONDITIONING JF Heat Transfer Research JO HTR YR 2015 FD 2014-12-17 VO 46 IS 3 SP 271 OP 291 K1 engine waste heat K1 hybrid refrigeration K1 heat transfer model AB The waste heat characteristics of the exhaust gases from the coach engine were analyzed at different coach running speeds and different gears. Based on the waste heat load, the cycle thermal calculation results and the given operating conditions, the structural parameters of the main devices in the absorption−compression hybrid refrigeration cycles (ACHRC) were determined. The conditions of the temperatures of cooling air, condensation, and evaporation are 35°C, 55°C, and 3°C, respectively, and the coach air-conditioning load is 30 kW. The performance of the ACHRC was investigated by coupling the heat transfer equations for the devices in the ACHRC and the cycle thermal calculation equations. The results indicate that the absorption refrigeration subcycle (ARSC) driven by the gases can completely meet the coach cooling requirement when the coach running speed reaches 105 km·h−1. The cooling load is fully supplied by the compression refrigeration subcycle (CRSC) powered by the engine output when the coach running speed is lower than 40 km·h−1. PB Begell House LK https://www.dl.begellhouse.com/journals/46784ef93dddff27,20c42e9f08e240e4,7f3483021347a2f0.html