溴化锂吸收式制冷机亚稳平衡增压吸收试验和机理

CIESC Journal

溴化锂吸收式制冷机亚稳平衡增压吸收试验和机理

解国珍，法晓明

北京建筑工程学院，北京 100044

出版日期:2010-12-30 发布日期:2010-12-30

A novel lithium bromide absorption chiller with enhanced absorption pressure

XIE Guozhen,FA Xiaoming

Online:2010-12-30 Published:2010-12-30

摘要/Abstract

摘要：

溴化锂吸收式制冷机组以水为制冷剂，环保，可利用废热、余热，达到综合利用和回收能源的目的。但是其较低的能效比限制其发展。本文基于二元溶液亚稳平衡吸收原理，对常规溴化锂吸收式制冷循环的吸收器进行了改造，建造了蒸汽增压装置，以强化吸收器特性、降低发生温度为目的进行了特性研究。研究结果表明，制冷量可以增加约2倍，传热面积约减小40%～55%，有利于机组小型化；机组增压范围在1.2～2.2 kPa间，机组COP值约提高1.5倍。

Abstract:

Although lithium bromide absorption chillers（LBAC）are widely used to provide thermal comfort by utilizing waste heat，they suffer from low efficiency.This paper presents an experimental investigation on a novel reformed LBAC based on the absorption principle of the duality solution in the sub-steady equilibrium state.This increases the pressure in the absorber and decreases temperature in the generator，resulting in doubling the refrigeration capacity of the LBAC.The COP of the system improves by 1.5 times when the absorption pressure increases from 1.2 kPa to 2.2 kPa.

解国珍，法晓明. 溴化锂吸收式制冷机亚稳平衡增压吸收试验和机理 [J]. CIESC Journal.

XIE Guozhen,FA Xiaoming. A novel lithium bromide absorption chiller with enhanced absorption pressure[J]. .