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A novel evaluation indicator and optimal heating strategy for using an intermittent-operation catalytic combustion heater in open cold environments

Specific occupations and activities often require the ability to provide heating in cold open environments. This leads to a conflict between personnel comfort and portable energy usage. However, studies have not fully explored the characteristics of asymmetric intermittent radiation heating in cold...

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Main Authors: Qin, Mingyuan, Chew, Bee Teng, Han, Xiaofei, Yang, Zhen, Cui, Tong, Deng, Fei, Pan, Song
Format: Article
Published: Elsevier 2024
Subjects:
TH Building construction
TJ Mechanical engineering and machinery
Online Access:http://eprints.um.edu.my/45625/
https://doi.org/10.1016/j.buildenv.2024.111271
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spelling my.um.eprints.456252024-11-06T06:27:27Z http://eprints.um.edu.my/45625/ A novel evaluation indicator and optimal heating strategy for using an intermittent-operation catalytic combustion heater in open cold environments Qin, Mingyuan Chew, Bee Teng Han, Xiaofei Yang, Zhen Cui, Tong Deng, Fei Pan, Song TH Building construction TJ Mechanical engineering and machinery Specific occupations and activities often require the ability to provide heating in cold open environments. This leads to a conflict between personnel comfort and portable energy usage. However, studies have not fully explored the characteristics of asymmetric intermittent radiation heating in cold open environments. Therefore, a self-developed catalytic combustion radiant heater is used as an intermittent heat source for exploring its optimal intermittent heating strategy. The evaluation indicators, derived from measurements of the 20 participants in the experiment, include overall thermal evaluations, energy consumption, and corrective power (CP). In the study, the transient characterization the traditional CP (CPtrad) yielded results ranging from -0.76 to 1.76 K, with some negative values. Consequently, the concept of continuity and holistic perspective is broadened to accommodate intermittent heating. The newly expanded indicator, named CPinterm, varied from 0.29 to 2.52 K. Subsequently, a functional model linking CPtrad to CPinterm was obtained by polynomial fitting (R2 = 0.77) to simplify the experimental complexity. The model was also validated by data from previous studies on conduction and convection PCS. Following a comprehensive analysis, the optimal heating strategy for the heater was found to be a 40 cm heating distance, 5 min heating time, and 5 min intermittent time. This strategy reduced energy consumption by 50% and increased fuel usage hours by 2 times compared to continuous heating. This study's established indicator offers a viable evaluation method for personal comfort systems implementing intermittent operation strategies. Elsevier 2024-03 Article PeerReviewed Qin, Mingyuan and Chew, Bee Teng and Han, Xiaofei and Yang, Zhen and Cui, Tong and Deng, Fei and Pan, Song (2024) A novel evaluation indicator and optimal heating strategy for using an intermittent-operation catalytic combustion heater in open cold environments. Building and Environment, 252. p. 111271. ISSN 0360-1323, DOI https://doi.org/10.1016/j.buildenv.2024.111271 <https://doi.org/10.1016/j.buildenv.2024.111271>. https://doi.org/10.1016/j.buildenv.2024.111271 10.1016/j.buildenv.2024.111271
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TH Building construction
TJ Mechanical engineering and machinery
spellingShingle TH Building construction
TJ Mechanical engineering and machinery
Qin, Mingyuan
Chew, Bee Teng
Han, Xiaofei
Yang, Zhen
Cui, Tong
Deng, Fei
Pan, Song
A novel evaluation indicator and optimal heating strategy for using an intermittent-operation catalytic combustion heater in open cold environments
description Specific occupations and activities often require the ability to provide heating in cold open environments. This leads to a conflict between personnel comfort and portable energy usage. However, studies have not fully explored the characteristics of asymmetric intermittent radiation heating in cold open environments. Therefore, a self-developed catalytic combustion radiant heater is used as an intermittent heat source for exploring its optimal intermittent heating strategy. The evaluation indicators, derived from measurements of the 20 participants in the experiment, include overall thermal evaluations, energy consumption, and corrective power (CP). In the study, the transient characterization the traditional CP (CPtrad) yielded results ranging from -0.76 to 1.76 K, with some negative values. Consequently, the concept of continuity and holistic perspective is broadened to accommodate intermittent heating. The newly expanded indicator, named CPinterm, varied from 0.29 to 2.52 K. Subsequently, a functional model linking CPtrad to CPinterm was obtained by polynomial fitting (R2 = 0.77) to simplify the experimental complexity. The model was also validated by data from previous studies on conduction and convection PCS. Following a comprehensive analysis, the optimal heating strategy for the heater was found to be a 40 cm heating distance, 5 min heating time, and 5 min intermittent time. This strategy reduced energy consumption by 50% and increased fuel usage hours by 2 times compared to continuous heating. This study's established indicator offers a viable evaluation method for personal comfort systems implementing intermittent operation strategies.
format Article
author Qin, Mingyuan
Chew, Bee Teng
Han, Xiaofei
Yang, Zhen
Cui, Tong
Deng, Fei
Pan, Song
author_facet Qin, Mingyuan
Chew, Bee Teng
Han, Xiaofei
Yang, Zhen
Cui, Tong
Deng, Fei
Pan, Song
author_sort Qin, Mingyuan
title A novel evaluation indicator and optimal heating strategy for using an intermittent-operation catalytic combustion heater in open cold environments
title_short A novel evaluation indicator and optimal heating strategy for using an intermittent-operation catalytic combustion heater in open cold environments
title_full A novel evaluation indicator and optimal heating strategy for using an intermittent-operation catalytic combustion heater in open cold environments
title_fullStr A novel evaluation indicator and optimal heating strategy for using an intermittent-operation catalytic combustion heater in open cold environments
title_full_unstemmed A novel evaluation indicator and optimal heating strategy for using an intermittent-operation catalytic combustion heater in open cold environments
title_sort novel evaluation indicator and optimal heating strategy for using an intermittent-operation catalytic combustion heater in open cold environments
publisher Elsevier
publishDate 2024
url http://eprints.um.edu.my/45625/
https://doi.org/10.1016/j.buildenv.2024.111271
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score 13.222552

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