Experimental study of a sustainable cooling process hybridizing indirect evaporative cooling and mechanical vapor compression

Energy Reports

M. Kum Ja¹  Hongfei Zheng²  Muhammad Wakil Shahzad³  Kim Choon Ng³  Muhammad Burhan³  Qian Chen³  Doskhan Ybyraiymkul³ 

[1] Corresponding author.;Northumbria University, Newcastle Upon Tyne, United Kingdom;Water Desalination and Reuse Center, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia;

关键词: Indirect evaporative cooling;    Mechanical vapor compression;    Hybrid cooling system;    Experimental study;    Rapid evaluation model;   

DOI  :  

来源: DOAJ

【 摘 要 】

The hybrid indirect evaporative cooling-mechanical vapor compression (IEC-MVC) process is an emerging cooling technology that combines the advantages of IEC and MVC, i.e., effective temperature and humidity control, high energy efficiency, and low water consumption. This paper presents an experimental study of the hybrid IEC-MVC process. A 1-Rton pilot is fabricated by connecting IEC and MVC in series, and its performance is evaluated under different operating conditions (outdoor air temperature and humidity, air flowrate, compressor frequency). Results revealed that the outdoor air temperature and humidity could be lowered to 5–15 °C and 5–10 g/kg, respectively. The IEC handles 35%–50% of the total cooling load, and the energy consumption can be reduced by 15%–35% as compared to standalone MVC. Moreover, the condensate collected from the evaporator can compensate for >70% of water consumption in IEC, making the system applicable in arid regions. Based on the derived results, a simplified empirical model is developed for rapid evaluation of the IEC-MVC process, and the energy-saving potential in major cities of Saudi Arabia is estimated.

【 授权许可】

Unknown