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Abstract

Epidemic viruses seriously affect human health and the normal operation of society, so it is particularly important to effectively kill viruses. In this work, the thermal performance of a thermoelectric air disinfection system are studied. Utilizing the characteristics of semiconductor thermoelectric sheets with both cold and hot ends, the system can increase the air temperature by heating (cound be used in sterilization), and then, reduce the temperature of the air by cooling. The measurement results show that the air temperature can be increased to 80 ℃ first, and then cooled to 35 ℃. The total energy utilization rate of the system can reach up to 1.2. In addition, combined with the measurement results and numerical calculations, the parameters such as the number of thermoelectric element series, input power, air flow, and boundary insulation can be used to analyze their effects on the system performance. The system may have broad potential applications in public health, medical care, and household disinfection.

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Authors and contacts

Corresponding author:Yang Nuo,nuo@hust.edu.cn; Hao Qing,qinghao@email.arizona.edu

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材料及部件	热导率/ (W·(m·K)^–1)	密度/ (kg·m^–3)	比热/ (J·(kg·K)^–1)	表面发射率
半导体制冷片	1.5	7700	154	0.9
铝换热片	201	2710	913	0.038
XPS保温泡沫	0.03	25	2376.2	0.1
流体空气	0.0261	1.1614	1006.5	—

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Vol. 71, Issue 16 - 2022-08-20

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