Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates
The building industry challenges have led researchers to develop a personalized conditioning system aiming to create a microclimate comfort zone around the occupant. Radiant cooling become prevalent due to their potential in affording both comfort and energy saving. Consequently, this study investig...
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| مؤلفون آخرون: | |
| التنسيق: | article |
| منشور في: |
2022
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://dx.doi.org/10.1016/j.energy.2022.123185 https://www.sciencedirect.com/science/article/pii/S0360544222000883 http://hdl.handle.net/10576/48048 |
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| _version_ | 1857415084433735680 |
|---|---|
| author | Nagham, Ismail |
| author2 | Ouahrani, Djamel |
| author2_role | author |
| author_facet | Nagham, Ismail Ouahrani, Djamel |
| author_role | author |
| dc.creator.none.fl_str_mv | Nagham, Ismail Ouahrani, Djamel |
| dc.date.none.fl_str_mv | 2022-01-12 2023-09-28T09:20:30Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://dx.doi.org/10.1016/j.energy.2022.123185 Ismail, N., & Ouahrani, D. (2022). Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates. energy, 244, 123185. 0360-5442 https://www.sciencedirect.com/science/article/pii/S0360544222000883 http://hdl.handle.net/10576/48048 244 1873-6785 |
| dc.language.none.fl_str_mv | en |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Radiant cooling Personal thermal comfort CFD Mathematical model Cooling energy Energy savings |
| dc.title.none.fl_str_mv | Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | The building industry challenges have led researchers to develop a personalized conditioning system aiming to create a microclimate comfort zone around the occupant. Radiant cooling become prevalent due to their potential in affording both comfort and energy saving. Consequently, this study investigates the performance of a personalized cooling radiant cubicle (PCRC) combined with a conventional heating, ventilation, and air-conditioning (HVAC) system in an office room in hot climates. PCRC performance is assessed by introducing a novel model that combines computational fluid dynamics (CFD) and mathematical simulation based on two criteria: the ability in creating a thermal comfort zone near the occupant at high set-point temperatures and the economic feasibility in terms of energy savings and pay-back period. The results demonstrate that PCRC (i) maintains a comfortable personal thermal environment in the desired zone (ii) reduces the thermal asymmetry (iii) improves the corresponding predicted percentage of dissatisfied (PPD) index. When compared to published experiment, it is shown that the developed model is valid with a maximum relative error of 5% underlining its accuracy and eliminating the need of a full-physics based model. Moreover, implementing PCRC reduces cooling energy by 18% compared to conventional system with a payback period between 6 and 7 years. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | qu_f9e33fda0adc87ef6db10f523bd3fb42 |
| identifier_str_mv | Ismail, N., & Ouahrani, D. (2022). Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates. energy, 244, 123185. 0360-5442 244 1873-6785 |
| language_invalid_str_mv | en |
| network_acronym_str | qu |
| network_name_str | Qatar University repository |
| oai_identifier_str | oai:qspace.qu.edu.qa:10576/48048 |
| publishDate | 2022 |
| publisher.none.fl_str_mv | Elsevier |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| spelling | Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climatesNagham, IsmailOuahrani, DjamelRadiant coolingPersonal thermal comfortCFDMathematical modelCooling energyEnergy savingsThe building industry challenges have led researchers to develop a personalized conditioning system aiming to create a microclimate comfort zone around the occupant. Radiant cooling become prevalent due to their potential in affording both comfort and energy saving. Consequently, this study investigates the performance of a personalized cooling radiant cubicle (PCRC) combined with a conventional heating, ventilation, and air-conditioning (HVAC) system in an office room in hot climates. PCRC performance is assessed by introducing a novel model that combines computational fluid dynamics (CFD) and mathematical simulation based on two criteria: the ability in creating a thermal comfort zone near the occupant at high set-point temperatures and the economic feasibility in terms of energy savings and pay-back period. The results demonstrate that PCRC (i) maintains a comfortable personal thermal environment in the desired zone (ii) reduces the thermal asymmetry (iii) improves the corresponding predicted percentage of dissatisfied (PPD) index. When compared to published experiment, it is shown that the developed model is valid with a maximum relative error of 5% underlining its accuracy and eliminating the need of a full-physics based model. Moreover, implementing PCRC reduces cooling energy by 18% compared to conventional system with a payback period between 6 and 7 years.This work was financially supported by Qatar University.Elsevier2023-09-28T09:20:30Z2022-01-12Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1016/j.energy.2022.123185Ismail, N., & Ouahrani, D. (2022). Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates. energy, 244, 123185.0360-5442https://www.sciencedirect.com/science/article/pii/S0360544222000883http://hdl.handle.net/10576/480482441873-6785enhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:qspace.qu.edu.qa:10576/480482024-07-23T15:51:36Z |
| spellingShingle | Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates Nagham, Ismail Radiant cooling Personal thermal comfort CFD Mathematical model Cooling energy Energy savings |
| status_str | publishedVersion |
| title | Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates |
| title_full | Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates |
| title_fullStr | Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates |
| title_full_unstemmed | Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates |
| title_short | Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates |
| title_sort | Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates |
| topic | Radiant cooling Personal thermal comfort CFD Mathematical model Cooling energy Energy savings |
| url | http://dx.doi.org/10.1016/j.energy.2022.123185 https://www.sciencedirect.com/science/article/pii/S0360544222000883 http://hdl.handle.net/10576/48048 |