从热工学角度探讨国产吸收式制冷机的发展方向

Discussion on the development of the domestic lithium-bromide absorption chiller from a thermal-engineering viewpoint

该文从热工学角度探讨了目前我国溴化锂吸收式制冷机整机热力循环及各热质交换设备性能、结构等方面存在的问题；在整机循环方面，指出实现各设备的合理匹配、发展新的结构流程及增加新品种、新规格的机组为进一步的发展方向；在各设备性能、结构方面提出应加强吸收机理研究以及表面活化剂、高效强化管的应用研究。

As a refrigerating unit utilizing waste heat or other low-grade sources of energy, the lithium-bromide absorption chiller is considered to be an alternative for air-conditioning applications. In the chiller system consisting of the absorber, the generator, the condenser, the evaporator and the solution heat exchanger, a series of heat and mass transfer processes occur, with which the thermodynamic cycle for refrigeration is formed. In this presentation, problems existing in the thermodynamic cycle, performance of heat and mass transfer equipment, and in the construction of the domestic lithium-bromide absorption chillers were discussed from a thermal-engineering viewpoint. It was proposed that chiller systems with rationally matched devices and new types of construction and flow process ought to be developed. Research on the absorption mechanisms, development and application of surfactants and high-performance enhanced heat and mass transfer elements ought to be carried out.