The performance analysis on a novel purified pv-trombe wall for electricity, space heating, formaldehyde degradation and bacteria in activation

Q4 Engineering

中国科学技术大学学报 Pub Date : 2021-01-01 DOI:10.52396/JUST-2020-0018

L. Niansi, L. Xiaoyong, Y. Bendong

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引用次数: 0

Abstract

On the one hand, PV-Trombe wall is a combined solar system that meets dual functions of space heating and electricity output, but the utilization on the recovered solar heat by PV-Trombe wall is very limited. On the other hand, thermal catalytic oxidation and thermal sterilization are two advanced air purification technologies and both they have huge application potential with solar heat. Therefore, a novel purified PV-Trombe wall for electricity, space heating, formaldehyde degradation and bacteria inactivation was proposed. Firstly, the system thermal and mass transfer model was established and verified by experimental data. Secondly, the comprehensive performance with the PV coverage ratio of 0 was analyzed. Finally, the effect of PV coverage ratio on the system performance was investigated. Accordingly, the main results were: ① Under PV coverage ratio of 0, the average daily air thermal efficiency and formaldehyde single-pass ratio were 0. 46 and 0. 35, respectively. Meanwhile, the total generated volume of clean air by formaldehyde degradation was 93. 4 m3 . Five kinds of bacteria were fully thermal inactivated for several hours. Accordingly, the total generated volume of clean air were 188. 3, 173. 0, 201. 4, 189. 9 and 200. 2 m3 for E. coli, L. monocytogenes, L. plantarum, S. Senftenberg and S. cerevisiae, respectively. ② The PV coverage ratio played a different role on the system comprehensive performances. For specific performances, the PV coverage ratio only had a positive influence on electrical performance and had negative effect on other performances such as thermal, formaldehyde degradation and bacteria inactivation performances. However, considering the system comprehensive performances, the electrical energy was the additional product and the low PV coverage ratio was suggested. ③ The works could provide possible support to the prevention and control of COVID-19. © 2021, Editorial Department of Journal of University of Science and Technology of China. All rights reserved.

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新型纯化pv- trobe墙的电、空间加热、甲醛降解和细菌活化性能分析

一方面，PV-Trombe墙是一种组合式太阳能系统，满足空间采暖和电力输出的双重功能，但PV-Trombe墙对回收太阳能热能的利用非常有限。另一方面，热催化氧化和热灭菌是两种先进的空气净化技术，它们都具有巨大的太阳能应用潜力。因此，提出了一种用于电力、空间加热、甲醛降解和细菌灭活的新型纯化PV-Trombe墙。首先，建立了系统的传热传质模型，并用实验数据进行了验证。其次，分析了PV覆盖率为0时的综合性能。最后，研究了光伏覆盖率对系统性能的影响。结果表明:①在PV覆盖率为0时，平均日空气热效率和甲醛单通率均为0;46和0。分别为35。同时，甲醛降解产生的洁净空气总量为93。4立方米。五种细菌被完全热灭活几个小时。据此，洁净空气的总生成量为188。3, 173。0, 201。4、189。9和200。大肠杆菌、单核增生乳杆菌、植物乳杆菌、Senftenberg乳杆菌和酿酒乳杆菌分别为2 m3。②光伏覆盖率对系统综合性能的影响不同。在具体性能方面，PV覆盖率仅对电性能有积极影响，而对热、甲醛降解和细菌灭活等其他性能有消极影响。但从系统综合性能考虑，电能是附加产品，建议采用低光伏覆盖率。③为新冠肺炎疫情防控提供可能的支持。©2021，中国科学技术大学学报编辑部版权所有。

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来源期刊

中国科学技术大学学报 Engineering-Mechanical Engineering

CiteScore

0.40

自引率

0.00%

发文量

5692

期刊介绍：