【摘要】 船舶有大量的低品位余热可以利用,适合蒸发冷却和吸收去湿相结合的制冷空调系统使用。本文利用氯化锂溶液作为吸湿剂,在吸收制冷空调的基础上,结合大型船舶的工作环境特点,研究了直接吸收和间接冷却相结合的船用制冷空调系统的热力性能。同时,改进了以往吸收制冷的工艺流程,优化了制冷系统的工作过程,并研究了这套空调系统的节能效果。本研究中,除湿器外形尺寸为3m×0.8m×1m(长×宽×高),系统的制冷量为48kW,只需要7.1kW的电功率,而同样制冷量的空调系统,需要输入的电功率为52.5kW,一年节电达81,720kW·h。结果表明,在空气潮湿或环境特别干燥的地区,或有大量余热的地方,比较适合推广此空调系统。更多还原

【Abstract】 Abundant low-level waste heat produced in big ships is suitable for air-conditioning system with combination of evaporation cooling and absorption dehumidification technologies. Thermodynamic performance of ship air-conditioning system with LiCl solution as dehumidizer was studied. The system employs the combination of the technologies of direct adsorption and indirect cooling. Meanwhile, the technical flow of absorption refrigeration system was improved, the work process was optimized, and the energy saving effect was studied simultaneity. With this system, the configuration of the dehumidizer is 3 m×0.8 m×1 m (length×width×height). It consumes 7.1 kW power for 48 kW cooling capacity, saves 81,720 kWh electricity annually comparing with a common vapour compression refrigeration air-conditioning system, whose input power reaches 52.5 kW for the same cooling output. The result indicates that LiCl absorptionair-conditioning system is suitable for use in damped, dry areas and with massive waste heat places.更多还原