喷嘴孔径对纳米流体强化氨水泡状吸收过程的影响  

Effect of Nozzle Aperture on Improving Ammonia-water Bubble Absorption with Nanofluids

作　　者：苏风民[1] 马鸿斌[1] 邓洋波[1] 

机构地区：[1]大连海事大学轮机工程学院,辽宁大连116026

出　　处：《制冷技术》2014年第3期49-52,共4页Chinese Journal of Refrigeration Technology

基　　金：国家自然科学基金(51006013);中央高校基本科研业务费专项资金(3132013021)

摘　　要：氨水吸收制冷系统取代压缩制冷系统在船舶上应用具有非常好的应用前景,而吸收性能的强化则有助于氨水吸收制冷系统性能的提高和整机体积的减少。本文针对纳米流体这种新型吸收强化方法开展研究。通过实验,分析了喷嘴孔径对纳米流体强化氨水泡状吸收过程的影响。研究结果显示,喷嘴孔径的变化不会恶化纳米流体的吸收强化效果,吸收强化比始终能够保持稳定。此研究结果将有助于纳米流体这种新型吸收工质在实际吸收制冷系统中的应用。Ammonia-water absorption refrigeration, instead of compress refrigeration, has a great application prospect in ships. And, improving absorption performance makes for enhancement of absorption refrigeration efficiency and decrease of the whole machine＇s size. In this paper, the novel method that nanofluid improves the performance of absorption refrigeration is researched, and the effect of nozzle aperture on ammonia-water bubble absorption with nanofluids is analyzed through experiments. The results show that the change of the nozzle aperture does not deteriorate the enhancement of nanofluids on the absorption rate. The enhancing ratio is steady while the aperture of the nozzle is changed. The current investigation can result in a better application of nanofluids in absorption refrigeration.

关 键 词：吸收制冷 纳米流体 氨水 喷嘴孔径 

分 类 号：TB657[一般工业技术—制冷工程]