On the mathematical model of kitchen smoke exhaust system in high-rise residential buildings considering the Influence of Stack effect
In high-rise buildings with large indoor and outdoor temperature difference, neglecting the effect of stack effect in smoke exhaust shafts may cause calculation error of the fluid network model. In this paper, the mathematical model of kitchen smoke exhaust system considering the influence of stack...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2024-08-01
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| Series: | Energy and Built Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666123323000272 |
| _version_ | 1797356871609221120 |
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| author | Kailiang Huang Minghui Yu Xin Liu Runsheng Wang |
| author_facet | Kailiang Huang Minghui Yu Xin Liu Runsheng Wang |
| author_sort | Kailiang Huang |
| collection | DOAJ |
| description | In high-rise buildings with large indoor and outdoor temperature difference, neglecting the effect of stack effect in smoke exhaust shafts may cause calculation error of the fluid network model. In this paper, the mathematical model of kitchen smoke exhaust system considering the influence of stack effect was put forward and it can be inserted different range hood sub-models. Compared with the results of six working conditions of the model without considering the stack effect, the error of the proposed model were reduced by 7.6%, 4.3%, 4.1%, 2.8%, 2.4%, and 2.1%. While the indoor and outdoor temperature difference varies from −5 °C to 49 °C, the effect of stack effect on the pressure in the flue and the flow rate for each user was studied for six operating rates s. The results show that under the combined effect of stack effect and flue resistance, the static pressure of the kitchen smoke exhaust system showed a low-high-low distribution, and the maximum static pressure in the flue moved toward the bottom with the increase of temperature difference. User flow rates exhibit a low-high-low-high distribution, with an increased flow rate in the bottom users and the largest flow rate in the top users. |
| first_indexed | 2024-03-08T14:34:59Z |
| format | Article |
| id | doaj.art-55c7f5236cce4a339c85aaf53fe4c4c2 |
| institution | Directory Open Access Journal |
| issn | 2666-1233 |
| language | English |
| last_indexed | 2024-03-08T14:34:59Z |
| publishDate | 2024-08-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Energy and Built Environment |
| spelling | doaj.art-55c7f5236cce4a339c85aaf53fe4c4c22024-01-12T04:57:36ZengKeAi Communications Co., Ltd.Energy and Built Environment2666-12332024-08-0154580591On the mathematical model of kitchen smoke exhaust system in high-rise residential buildings considering the Influence of Stack effectKailiang Huang0Minghui Yu1Xin Liu2Runsheng Wang3School of Municipal and Environment Engineering, Shenyang Jianzhu University, Shenyang, 100168, ChinaSchool of Municipal and Environment Engineering, Shenyang Jianzhu University, Shenyang, 100168, ChinaCorresponding author at: School of Municipal and Environment Engineering, Shenyang Jianzhu University, Shenyang, Liaoning, 100168, China.; School of Municipal and Environment Engineering, Shenyang Jianzhu University, Shenyang, 100168, ChinaSchool of Municipal and Environment Engineering, Shenyang Jianzhu University, Shenyang, 100168, ChinaIn high-rise buildings with large indoor and outdoor temperature difference, neglecting the effect of stack effect in smoke exhaust shafts may cause calculation error of the fluid network model. In this paper, the mathematical model of kitchen smoke exhaust system considering the influence of stack effect was put forward and it can be inserted different range hood sub-models. Compared with the results of six working conditions of the model without considering the stack effect, the error of the proposed model were reduced by 7.6%, 4.3%, 4.1%, 2.8%, 2.4%, and 2.1%. While the indoor and outdoor temperature difference varies from −5 °C to 49 °C, the effect of stack effect on the pressure in the flue and the flow rate for each user was studied for six operating rates s. The results show that under the combined effect of stack effect and flue resistance, the static pressure of the kitchen smoke exhaust system showed a low-high-low distribution, and the maximum static pressure in the flue moved toward the bottom with the increase of temperature difference. User flow rates exhibit a low-high-low-high distribution, with an increased flow rate in the bottom users and the largest flow rate in the top users.http://www.sciencedirect.com/science/article/pii/S2666123323000272High-rise residential buildingsKitchen ventilationCentral exhaust systemBuoyancy-driven ventilationVentilation mathematical model |
| spellingShingle | Kailiang Huang Minghui Yu Xin Liu Runsheng Wang On the mathematical model of kitchen smoke exhaust system in high-rise residential buildings considering the Influence of Stack effect Energy and Built Environment High-rise residential buildings Kitchen ventilation Central exhaust system Buoyancy-driven ventilation Ventilation mathematical model |
| title | On the mathematical model of kitchen smoke exhaust system in high-rise residential buildings considering the Influence of Stack effect |
| title_full | On the mathematical model of kitchen smoke exhaust system in high-rise residential buildings considering the Influence of Stack effect |
| title_fullStr | On the mathematical model of kitchen smoke exhaust system in high-rise residential buildings considering the Influence of Stack effect |
| title_full_unstemmed | On the mathematical model of kitchen smoke exhaust system in high-rise residential buildings considering the Influence of Stack effect |
| title_short | On the mathematical model of kitchen smoke exhaust system in high-rise residential buildings considering the Influence of Stack effect |
| title_sort | on the mathematical model of kitchen smoke exhaust system in high rise residential buildings considering the influence of stack effect |
| topic | High-rise residential buildings Kitchen ventilation Central exhaust system Buoyancy-driven ventilation Ventilation mathematical model |
| url | http://www.sciencedirect.com/science/article/pii/S2666123323000272 |
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