Enhanced cooling system with integrated multi-geothermal concept– numerical and experimental studies
In order to reduce the energy bills and pollution of buildings due to the use of conventional cooling systems, the present paper presents a parametric analysis and a case study concerning a newly proposed Multi Geothermal Cooling System that uses the cold soil to precool or cool air of several resid...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-03-01
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| Series: | Results in Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123022000317 |
| _version_ | 1818338417103077376 |
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| author | Rabih Murr Jalal Faraj Elias Harika Cathy Castelain Mahmoud Khaled |
| author_facet | Rabih Murr Jalal Faraj Elias Harika Cathy Castelain Mahmoud Khaled |
| author_sort | Rabih Murr |
| collection | DOAJ |
| description | In order to reduce the energy bills and pollution of buildings due to the use of conventional cooling systems, the present paper presents a parametric analysis and a case study concerning a newly proposed Multi Geothermal Cooling System that uses the cold soil to precool or cool air of several residences simultaneously. For that purpose, a thermal modelling and a related in-house code are developed. The modelling allows to predict the temperature of the precooled (or cooled) air in function of the return air temperature (hot flow) and the mass flow rate. The effect of other governing parameters has been evaluated, like the depth in soil, the tubes length and diameter. Modelling results have been confronted to experimentation showing a worst case error of 1.9 °C in the precooled air temperature. The work doesn't stop here. The predicted air temperature has been used in a numerical study of a multi geothermal cooling system with air-conditioning systems and different scenarios were simulated. Energy savings and reduction in CO2 emission have been evaluated for different coefficients of performance. Results are promising and relevant recommendations were put on firm roots. |
| first_indexed | 2024-12-13T15:10:46Z |
| format | Article |
| id | doaj.art-2f0fadaf703a442cb40c7649ad197560 |
| institution | Directory Open Access Journal |
| issn | 2590-1230 |
| language | English |
| last_indexed | 2024-12-13T15:10:46Z |
| publishDate | 2022-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj.art-2f0fadaf703a442cb40c7649ad1975602022-12-21T23:40:53ZengElsevierResults in Engineering2590-12302022-03-0113100361Enhanced cooling system with integrated multi-geothermal concept– numerical and experimental studiesRabih Murr0Jalal Faraj1Elias Harika2Cathy Castelain3Mahmoud Khaled4Energy and Thermo-Fluid Group, Lebanese International University LIU, Bekaa, LebanonEnergy and Thermo-Fluid Group, International University of Beirut BIU, Beirut, Lebanon; Lebanese University, Faculty of Technology, Saida, LebanonEnergy and Thermo-Fluid Group, Lebanese International University LIU, Bekaa, LebanonLaboratory of Thermal Energy of Nantes, LTEN, Polytech’ Nantes, University of Nantes, Nantes, FranceEnergy and Thermo-Fluid Group, International University of Beirut BIU, Beirut, Lebanon; University Paris Diderot, Sorbonne Paris Cité, Interdisciplinary Energy Research Institute (PIERI), Paris, France; Corresponding author. Energy and Thermo-Fluid Group, International University of Beirut BIU, Beirut, Lebanon.In order to reduce the energy bills and pollution of buildings due to the use of conventional cooling systems, the present paper presents a parametric analysis and a case study concerning a newly proposed Multi Geothermal Cooling System that uses the cold soil to precool or cool air of several residences simultaneously. For that purpose, a thermal modelling and a related in-house code are developed. The modelling allows to predict the temperature of the precooled (or cooled) air in function of the return air temperature (hot flow) and the mass flow rate. The effect of other governing parameters has been evaluated, like the depth in soil, the tubes length and diameter. Modelling results have been confronted to experimentation showing a worst case error of 1.9 °C in the precooled air temperature. The work doesn't stop here. The predicted air temperature has been used in a numerical study of a multi geothermal cooling system with air-conditioning systems and different scenarios were simulated. Energy savings and reduction in CO2 emission have been evaluated for different coefficients of performance. Results are promising and relevant recommendations were put on firm roots.http://www.sciencedirect.com/science/article/pii/S2590123022000317Multi geothermal cooling systemBuried pipesThermal modellingParametric analysisIn-house codeCase study |
| spellingShingle | Rabih Murr Jalal Faraj Elias Harika Cathy Castelain Mahmoud Khaled Enhanced cooling system with integrated multi-geothermal concept– numerical and experimental studies Results in Engineering Multi geothermal cooling system Buried pipes Thermal modelling Parametric analysis In-house code Case study |
| title | Enhanced cooling system with integrated multi-geothermal concept– numerical and experimental studies |
| title_full | Enhanced cooling system with integrated multi-geothermal concept– numerical and experimental studies |
| title_fullStr | Enhanced cooling system with integrated multi-geothermal concept– numerical and experimental studies |
| title_full_unstemmed | Enhanced cooling system with integrated multi-geothermal concept– numerical and experimental studies |
| title_short | Enhanced cooling system with integrated multi-geothermal concept– numerical and experimental studies |
| title_sort | enhanced cooling system with integrated multi geothermal concept numerical and experimental studies |
| topic | Multi geothermal cooling system Buried pipes Thermal modelling Parametric analysis In-house code Case study |
| url | http://www.sciencedirect.com/science/article/pii/S2590123022000317 |
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