Experimental Verification of Indirect Adiabatic Cooling by Ventilation Air

Central Europe towards Sustainable Building

生态环境科学

Nehasil, O.^1 ; Adamovský, D.^1

CTU in Prague, Faculty of Civil Engineering, Department of Indoor Environmental and Building Services Engineering, Czech Republic^1

关键词: Adiabatic cooling;    Cooling buildings;    Cooling Capacity;    Experimental verification;    Indirect evaporative cooling;    Low-energy cooling;    Outdoor temperature;    Ventilation airs;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/290/1/012104/pdf
DOI  :  10.1088/1755-1315/290/1/012104

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Current efforts to reduce the energy consumption of buildings leads to savings in all categories of their operation. A traditional energy saving tool is low-energy cooling, based on the alternation of day/night temperatures, cold storage, or the use of higherature cold sources such as Earth's semi-solid or groundwater. This paper deals with the less widespread method for cooling buildings, based on latent heat removal for converting water to vapour. Within three years, approximately 150 operating states were measured for different temperatures and airflows and various types and numbers of humidifiers, as well as nozzle pressures and types of heat exchangers. The paper outlines the results of these experiments and shows the available cooling capacity coupled to the ventilation air. The fact is that cooling power increases with increasing outdoor temperature, which makes indirect evaporative cooling an interesting method of providing cold during the times when it is under greatest demand.