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溴化锂吸收式制冷机在我国得到了飞速的发展。特别是随着天然气能源在我国能源中的比例不断增加,燃气空调的不断发展,溴化锂吸收式冷(热)水机的发展近年来更呈上升的势头。长期以来,在评论直燃型溴化锂吸收式冷(热)水机组与蒸汽型溴化锂吸收式冷水机组的性能系数上存在一定的差异,直燃型与蒸汽型溴化锂吸收式冷(热)水机热源加热量的计算方法不一。文中讨论了锅炉效率与热利用效率。阐述如何有效利用排热提高性能系数。建议在计算蒸汽型机组COP时,其热源加热量应为加入机组的加热蒸汽的潜热量与加热蒸汽凝水冷却至环境温度的显热量之和。
Lithium bromide absorption chiller in our country has been rapid development. Especially with the increasing proportion of natural gas energy in China’s energy sources, the continuous development of gas air conditioners, the development of lithium bromide absorption cold (hot) water machine is more upward trend in recent years. For a long time, there are some differences in the performance coefficient of direct-fired LiBr absorption chiller (hot water) units and steam-type lithium bromide absorption chillers. The direct-fired and steam-type lithium bromide absorption chiller The calculation of heat varies. The article discusses boiler efficiency and heat utilization efficiency. Describe how to use exhaust heat effectively to improve performance coefficient. It is suggested that when calculating the COP of a steam-type unit, the heating amount of the heat source should be the sum of the latent heat amount of the heating steam added into the unit and the sensible heat amount of the cooling water vapor cooled by the heating steam to the ambient temperature.