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Author:

Qin, Mingyuan (Qin, Mingyuan.) | Chew, Bee Teng (Chew, Bee Teng.) | Yau, Yat Huang (Yau, Yat Huang.) | Li, Chao (Li, Chao.) | Liu, Yiqiao (Liu, Yiqiao.) | Han, Xiaofei (Han, Xiaofei.) | Chao, Ong Zhi (Chao, Ong Zhi.) | Pan, Song (Pan, Song.)

Indexed by:

EI Scopus SCIE

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.

Keyword:

Personal comfort systems (PCS) Catalytic combustion heating Thermal comfort Wind -chilled environments Local heating Coupled physical field

Author Community:

  • [ 1 ] [Qin, Mingyuan]Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
  • [ 2 ] [Chew, Bee Teng]Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
  • [ 3 ] [Yau, Yat Huang]Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
  • [ 4 ] [Liu, Yiqiao]Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
  • [ 5 ] [Chao, Ong Zhi]Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
  • [ 6 ] [Li, Chao]Beijing Univ Technol, Fac Architecture Civil & Transportat Engn, Beijing 100124, Peoples R China
  • [ 7 ] [Han, Xiaofei]Univ Malaya, Fac Built Environm, Ctr Bldg Construct & Trop Architecture, Kuala Lumpur 50603, Malaysia
  • [ 8 ] [Pan, Song]Beijing Univ Technol, Beijing Key Lab Green Built Environm & Energy Effi, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Chew, Bee Teng]Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia

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Source :

JOURNAL OF CLEANER PRODUCTION

ISSN: 0959-6526

Year: 2024

Volume: 436

1 1 . 1 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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