大连海事大学学报 >
2020 , Vol. 46 >Issue 4: 95 - 101
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2020.04.012
废热驱动的船用喷射制冷-转轮除湿空调性能参数分析
收稿日期: 2020-08-22
修回日期: 2020-09-16
网络出版日期: 2020-09-16
基金资助
国家自然科学基金资助项目（51679107）；福建省自然科学基金资助项目 (2017J01705).
Analysis on the performance parameters of marine ejector refrigeration rotary desiccant air-conditioning driven by waste heat
Received date: 2020-08-22
Revised date: 2020-09-16
Online published: 2020-09-16
为研究可由废热驱动的喷射制冷转轮除湿空调系统在船舶上应用的节能特性，结合实船空调的设计参数，在不同的引射系数条件下计算并分析系统的蒸汽耗量、功耗和COP等性能参数的变化规律，并与传统船用空调进行对比.结果表明，引射系数为0.1~0.9时，蒸汽耗量从2851.1kg/h降至804.2kg/h，功耗从52.54kW降至35.83kW，COP从6.34增至9.29，可获得59.33%~72.27%的节能效果.但是对蒸汽耗量和功耗的降低贡献大部分是在引射系数较低时取得，引射系数从0.1增至0.2~0.3的贡献占56.25%~75%，而从0.3增至0.9的贡献仅占25%.由此可知，船用喷射制冷-转轮除湿空调具有良好的节能潜力，但当引射系数增大到0.2~0.3后，进一步增大引射系数对节能降耗的效果改善不明显.因此，在构建系统时应综合考虑，无须采用过高的引射系数.该研究为喷射制冷-转轮除湿空调在船舶上的应用提供了参考依据，具有一定的指导意义.
郑超瑜 , 郑青榕 , 陈武 . 废热驱动的船用喷射制冷-转轮除湿空调性能参数分析[J]. 大连海事大学学报, 2020 , 46(4) : 95 -101 . DOI: 10.16411/j.cnki.issn1006-7736.2020.04.012
In order to study the energy saving characteristics of the ejector refrigeration rotary desiccant air-conditioning system driven by waste heat in ships, combining with the design parameters of a real marine air-conditioning system, the steam consumption, power consumption and COP of the system were calculated and analyzed under different entrainment ratio conditions, and compared with the traditional marine air-conditioning system. The results show that when the entrainment ratio is in the range of 0.1~0.9, the steam consumption decreases from 2851.1kg/h to 804.2kg/h, the power consumption decreases from 52.54kW to 35.83kW, and the COP increases from 6.34 to 9.29, which can achieve 59.33%~72.27% energy saving effect. However, most of the contribution to the reduction of steam consumption and power consumption is achieved when the entrainment ratio is low, and the contribution of entrainment ratio from 0.1 to 0.2~0.3 accounts for 56.25%~75%, while the contribution of entrainment ratio from 0.3 to 0.9 only accounts for 25%. It can be seen that the marine ejector refrigeration rotary desiccant air-conditioning has good energy saving potential, but when the entrainment ratio increases to 0.2~0.3, the effect of further increasing the entrainment ratio on energy saving and consumption reduction is not obvious. Therefore, in construction of the system, it should be considered comprehensively, and there is no need to use too high entrainment ratio. This study provides a reference for the application of ejector refrigeration rotary desiccant air-conditioning system in ships.
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