Qin, Mingyuan and Chew, Bee Teng and Yau, Yat Huang and Li, Chao and Liu, Yiqiao and Han, Xiaofei and Chao, Ong Zhi and Pan, Song (2024) Thermal comfort characteristics of a catalytic combustion heater under wind-chilled exposure. Journal of Cleaner Production, 436. p. 140701. ISSN 0959-6526, DOI https://doi.org/10.1016/j.jclepro.2024.140701.
Full text not available from this repository.Abstract
Heating in wind -chilled environments is a serious task. The catalytic combustion heater (CCH) provides more efficient and cleaner in combustion compared to conventional heaters with high pollutant emission and low energy utilization. In this paper, the heating ability of CCH on human body in a wind -chilled environment (apparent temperatures between -14.8 degrees C and 12.4 degrees C) was investigated by collecting skin temperature and subjective thermal evaluation data from 23 subjects. The impact of cold air on localized heating of body parts by CCH was clarified using decision trees and dimensionless correlation coefficients. A human -computer interaction regulation strategy was proposed to simultaneously satisfy the requirements of effective heating, low energy consumption, and low pollution. Finally, CCH and a commercial heater were compared in terms of heating effectiveness and energy consumption in a real outdoor environment. The results showed that CCH effectively solved the problem of excessive cold extremities, and the temperature difference between thoracoabdominal area and extremities was reduced by 57.5-87.9% to within 2 degrees C. In a strong convective environment, wind speed was the decisive factor (coefficient of 0.95), inducing 46% radiant heat loss. Inputting personnel subjective perception, dynamic environmental parameters, and pollutant thresholds to adjust the injected gas flow enabled intelligent control. In a real cold scenario, the CCH saved 65.9% of energy compared to a commercial heater when achieving the same heating effect. This study provides a reference for the application of catalytic combustion technology in cold outdoor heating and also provides an important theoretical basis for the construction of heating strategies for CCH.
| Item Type: | Article |
|---|---|
| Funders: | Research University (RU) Grant -Faculty Program (GPF005A-2023), Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of the Ministry of Education, International Science and Technology Cooper- ation Center in Hebei Province (20594501D) |
| Uncontrolled Keywords: | Catalytic combustion heating; Wind -chilled environments; Thermal comfort; Local heating; Personal comfort systems (PCS); Coupled physical field |
| Subjects: | T Technology > TH Building construction T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering > Department of Mechanical Engineering Faculty of the Built Environment |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 12 Nov 2024 03:05 |
| Last Modified: | 12 Nov 2024 03:05 |
| URI: | http://eprints.um.edu.my/id/eprint/45784 |
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