A Mathematical Model of Solar Energy Storage Ventilation System
LU Jun,ZHAO Juan,HUANG Guangqin,ZHANG Yaqin and LIU Yuxi
DOI:10.11835/j.issn.1674-4764.2012.03.019
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,2012,Pages 110-116
- Abstract
A mathematical model of solar energy storage ventilation system was built in order to calculate the heat storage during daytime and the ventilation rate during nighttime. Based on meteorological parameters of Kunming in China, phase change materials(PCM) were used at the temperature of 38 ℃, 44 ℃, 50 ℃ and 63 ℃ respectively to search the relationship between ventilation volume and the angle of chimney. The modeling calculation results show that for different phase change materials, and in any angle, the trend of heat accumulation is consistent, namely heat accumulation is smaller with a higher phase change temperature. Considering both the average hourly ventilation volume and the duration, the best angle of this system should be 45°, and the best phase change material should be 38 ℃ myristoyl.