The Performance Analysis of a Novel Sterilizable Trombe Wall Based on the Combined Effect of Heat and UV Light

A Trombe wall is a widely applied heating system that has a single function. An interesting thing is that both the solar heat and UV light received by a Trombe wall have an air sterilization effect. Here, the air sterilization and thermal performances of a Trombe wall in different cities were invest...

Full description

Saved in:
Bibliographic Details
Published in:Buildings (Basel) 2024-05, Vol.14 (5), p.1210
Main Authors: Fan, Miaomiao, Li, Niansi, Yu, Bendong
Format: Article
Language:English
Subjects:
Accumulation
Air conditioning
Air flow
Air pollution
Analysis
Bacteria
China
Deactivation
E coli
Efficiency
Energy conservation
Green buildings
Heat
Heating
High temperature
Inactivation
Indoor air quality
Mass transfer
Microorganisms
Outdoor air quality
Pollutants
Radiation
Sterilization
Summer
thermal performance
thermal sterilization
Trombe wall
Trombe walls
Ultraviolet radiation
UV sterilization
Ventilation
Weather
Winter
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A Trombe wall is a widely applied heating system that has a single function. An interesting thing is that both the solar heat and UV light received by a Trombe wall have an air sterilization effect. Here, the air sterilization and thermal performances of a Trombe wall in different cities were investigated based on an established heat and mass transfer model. The main results were as follows: (1) UV dose accumulation and high temperature were the most important factors that affect the UV and thermal sterilization performance, respectively. The Trombe wall had the thermal characteristics of high accumulation of UV doses in the morning and afternoon and a high temperature level at noon, which was a good match with the UV and thermal sterilization process. (2) A typical sterilization process in a Trombe wall was divided into three areas: the UV inactivation area, UV and thermal inactivation area and UV inactivation area. (3) The weather conditions played an important role in the sterilization performance. UV sterilization was dominant in cloudy weather, and thermal sterilization was dominant in sunny weather. (4) In Nanjing, Shanghai, Xining and Guangzhou, the average daily clean air volumes in heating months were 39.4, 33.5, 32.2 and 39.8 m3/m2, respectively. (5) When the wall height increased from 1.5 m to 3.5 m, the average daily clean air volume in heating months increased from 31.7 to 43.6 m3/m2.
ISSN:2075-5309
2075-5309
DOI:10.3390/buildings14051210