Stability of temperature field in blood refrigerated warehouse using micro-hole air inlet
10.13303/j.cjbt.issn.1004-549x.2022.09.028
- VernacularTitle:微孔送风与血液冷藏库温度场的稳定性研究
- Author:
Xingzhi CHEN
1
;
Yunguang CHEN
1
;
Xuelei CAO
1
;
Deyuan WANG
1
;
Jiewang XU
1
;
Xiaolian PAN
1
Author Information
1. Guangxi Blood Center, Liuzhou 545005, China
- Publication Type:Journal Article
- Keywords:
blood refrigerated warehouse;
temperature field;
stability;
CV of temperature;
micro-hole air inlet
- From:
Chinese Journal of Blood Transfusion
2022;35(9):991-995
- CountryChina
- Language:Chinese
-
Abstract:
【Objective】 To study the effect of air inlet modes on the temperature variation, fluctuation, uniformity and coefficient of variation(CV), so as to evaluate the stability and uniformity of the temperature field in refrigerated warehouse for blood. 【Methods】 The temperature changes of blood refrigerated warehouse under different modes of air inlet during compressor operation were analyzed. The stability of the temperature field in the storehouse was evaluated by the changes, fluctuation, uniformity, CV and deviation of temperature at each testing point. 【Results】 The average value of temperature in the storehouse, adopting air inlet via straight blow, was (4.98±0.92)℃, while that of air inlet via micro-hole mode was(4.15±0.25)℃, with significant differences between each other(P<0.05). As to the CV of temperature, air inlet via straight blow was significantly different from that via micro hole(P<0.01). The fluctuation, uniformity and deviation of temperature created by straight blow and micro hole were 1.85±1.11 vs 0.49±0.38, 1.00±0.68 vs 0.47±0.37, and 0.61±0.45 vs 0.27±0.21, respectively, with significant differences between each other(P<0.01). 【Conclusion】 Compared with straight blow, the mean temperature created by micro hole was closer to the median value (4℃) of the temperature range, i. e.(4±2)℃, during blood storage. Otherwise, micro hole demonstrated a smaller CV of temperature, and superior performance in fluctuation, uniformity and deviation of the temperature at the testing points, which was conducive to ensure the stability of storehouse temperature field.
