一段时间以来，吸收式热泵一直被认为是升级低温废热的一种可能方案，这种废热的数量非常大热泵的设计目的是提供通常从60%（140华氏度）到120%（250华氏度）的温度提升，从而使低品位的热量可用于工业和其他应用。最近一项关于不同余热利用方式的研究表明，吸收式热泵是其他系统中最有前途的一种。与大多数其他热泵不同，吸收系统依靠废热本身作为动力源，不需要电力或其他一次能源（寄生除外，寄生可能会保持较小）。虽然吸收循环在冷却系统中得到了广泛的应用，但在工业热泵应用方面所做的工作相对较少。溴化锂吸收式制冷机的实验研究- 多级热泵机是几年前在列宁格勒制冷工业技术研究所开发的。在热泵模式下，仅使用废热燃烧，在燃烧温度为60%（140华氏度）和冷却水温度为1.4%（34华氏度）的情况下，可获得30摄氏度（54华氏度）的升温。建立了一个采用氨水溶液的单级系统，该系统以65℃（149℉）的热源和15℃（59℉）的水槽运行，并进行了实验。3法国石油研究所开发的氨水吸收再吸收热泵在热输入温度高于70%（158华氏度）时实现了适度的温度提升[30摄氏度（54华氏度）]。4对其他工作材料和不同应用进行了热力学和一般可行性分析。本研究考虑了开式循环吸收式热泵及其在没有低温散热器的情况下回收低温废热的潜力。 这种情况通常发生在温暖潮湿的气候或冷却水不易获得的地方。使用合适的工作材料进行循环分析。研究了单个部件和整个系统的性能。引文:德克萨斯州休斯顿ASHRAE学报第88卷第1部分研讨会

For some time, the absorption heat pump has been considered as a possible scheme for upgrading low-temperature waste heat, which is available in very large quantities.' The heat pump, designed to provide a temperature boost typically from 60% (140 F) to 120% (250 F), thus makes low-grade heat useful for industrial and other applications. A recent study on the different means for waste heat utilization has shown the absorption heat pump to be one of the more promising among the other systems proposed for this purpose.Unlike most other heat pumps, the absorption system relies on the waste heat itself as a source of power and does not require electricity or other primary energy for its operation (except for parasitics, which may be kept small). Although the absorption cycle has been used extensively in cooling systems, relatively little work has been done on the industrial heat pump application. An experimental study of a lithium bromide absorption refrigerating and single-stage heat pump machine was carried out years ago at the Leningrad Technological Institute of the Refrigerating Industry. In the heat pump mode, which was fired exclusively with waste heat, temperature boosts of 30 C (54 F) were obtained with firing temperatures of 60% (140 F) and cooling water at 1.4% (34 F).A singlestage system employing an ammonia-water solution, operating with a 65'C (149 F) heat source and 15'C (59 F) sink, was built and experimented with.3 An ammonia-water absorption-resorption heat pump developed at the French Institute of Petroleum achieved good efficiencies for modest temperature boosts [about 30'C (54 F)] at heat input temperatures above 70% (158 F).4 Thermodynamic and general feasibility analyses were done for other working materials and for different applications. This study considers the open-cycle absorption heat pump and its potential for recovering low-temperature waste heat in the absence of a much lower temperature heat sink. This would occur typically in warm, humid climates or where cooling water is not readily available. A cycle analysis is performed with suitable working materials. The performance of individual components and of the overall system is studied.