无泵循环液体除湿型空调系统的仿真研究

Simulation on a Liquid-Desiccant Air Conditioning System without Pump

建立了无泵循环的氯化锂水溶液除湿系统中气泡泵和吸收器的数学模型 ,通过模型仿真 ,研究了它们的特性 ,为除湿型空调系统的设计提供了理论依据 .结果表明 :吸收器的溶液与空气流量比的合理值应小于 2 0 ,设计时取 1 0～ 1 5为宜 ;气泡泵的结构尺寸由溶液循环的阻力分析来确定 ,其重位阻力损失占 79% ,摩擦损失占 18% ;气泡泵的加热强度应控制在使溶液的提升量和放气范围同时增大的范围内 .

The models of absorber and bubble pump in a liquid-desiccant air conditioning system without pump are developed. By simulation, theoretical analysis is given and their performances can be predicted. This investigation gives a theoretical base for the system design. For absorber, the appropriate rate between solution and air mass is in a range of 1.0-1.5. For bubble pump, its size is determined by the pressure loss analysis of solution circulation. The gravitational loss shares 79%, and the friction loss 18%. The heat power of bubble pump should be within the range, in which the mass rate of elevated solution and the concentration difference of the generated solution musts synchronously increase when increasing the heat power.