Energetic analysis in a hot water system: A hotel facility case study
This paper evaluates the energy operational performance of a system to produce domestic hot water, from the use of waste heat in a centralized air conditioning system in a hotel in Cuba. The hotel facility has two different chillers capacities, where the system recovers the condensed heat, through a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SDEWES Centre
2023-03-01
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| Series: | Journal of Sustainable Development of Energy, Water and Environment Systems |
| Subjects: | |
| Online Access: |
http://www.sdewes.org/jsdewes/pid10.0428
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| _version_ | 1797870994447138816 |
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| author | Yarelis Valdivia Nodal Hernan Hernandez Herrera Roy Reyes Calvo Mario Álvarez Guerra Jorge Silva Miguel Santana Justiz Hernan Hernandez Herrera |
| author_facet | Yarelis Valdivia Nodal Hernan Hernandez Herrera Roy Reyes Calvo Mario Álvarez Guerra Jorge Silva Miguel Santana Justiz Hernan Hernandez Herrera |
| author_sort | Yarelis Valdivia Nodal |
| collection | DOAJ |
| description | This paper evaluates the energy operational performance of a system to produce domestic hot water, from the use of waste heat in a centralized air conditioning system in a hotel in Cuba. The hotel facility has two different chillers capacities, where the system recovers the condensed heat, through a heat exchanger at the compression process outlet. These schemes allow the simultaneous production of air conditioning and Domestic Hot Water, also those considering thermal storage tanks. The system modelling starts analyzing its components and their processes, based on the traditional thermodynamics and heat transfer equations and ends with a validation process. This model estimates a wide range of operating conditions, such as thermal demands of the cooling load, the chiller water temperature, the electricity consumed by chillers, and the climatological variables involved. The system is evaluated in the highest tourism season in Cuba during a year under partial load. Results were validated in a hotel as a study case, which allowed us to estimate the thermal potential available in the plant to meet the thermal demand of the hot water required, as well as showing that variations in the chiller operation affect the temperature stability in the hot water system. |
| first_indexed | 2024-04-10T00:36:09Z |
| format | Article |
| id | doaj.art-3822c2a1bab445979b4fe5b0af21e550 |
| institution | Directory Open Access Journal |
| issn | 1848-9257 |
| language | English |
| last_indexed | 2024-04-10T00:36:09Z |
| publishDate | 2023-03-01 |
| publisher | SDEWES Centre |
| record_format | Article |
| series | Journal of Sustainable Development of Energy, Water and Environment Systems |
| spelling | doaj.art-3822c2a1bab445979b4fe5b0af21e5502023-03-14T15:08:37ZengSDEWES CentreJournal of Sustainable Development of Energy, Water and Environment Systems1848-92572023-03-0111111510.13044/j.sdewes.d10.04281100428Energetic analysis in a hot water system: A hotel facility case studyYarelis Valdivia Nodal0Hernan Hernandez Herrera1Roy Reyes Calvo2Mario Álvarez Guerra3Jorge Silva4Miguel Santana Justiz5Hernan Hernandez Herrera6 Universidad de Cienfuegos, Cienfuegos, Cuba Universidad Simón Bolivar, Barranquilla, Colombia Universidad de Cienfuegos, Cienfuegos, Cuba Universidad de Cienfuegos, Cienfuegos, Cuba Universidad de la Costa, Barranquilla, Colombia Universidad de Cienfuegos, Cienfuegos, Cuba Universidad Simón Bolívar, Barranquilla, Colombia This paper evaluates the energy operational performance of a system to produce domestic hot water, from the use of waste heat in a centralized air conditioning system in a hotel in Cuba. The hotel facility has two different chillers capacities, where the system recovers the condensed heat, through a heat exchanger at the compression process outlet. These schemes allow the simultaneous production of air conditioning and Domestic Hot Water, also those considering thermal storage tanks. The system modelling starts analyzing its components and their processes, based on the traditional thermodynamics and heat transfer equations and ends with a validation process. This model estimates a wide range of operating conditions, such as thermal demands of the cooling load, the chiller water temperature, the electricity consumed by chillers, and the climatological variables involved. The system is evaluated in the highest tourism season in Cuba during a year under partial load. Results were validated in a hotel as a study case, which allowed us to estimate the thermal potential available in the plant to meet the thermal demand of the hot water required, as well as showing that variations in the chiller operation affect the temperature stability in the hot water system. http://www.sdewes.org/jsdewes/pid10.0428 domestic hot waterenergy savingchillerhotelsheat recovery |
| spellingShingle | Yarelis Valdivia Nodal Hernan Hernandez Herrera Roy Reyes Calvo Mario Álvarez Guerra Jorge Silva Miguel Santana Justiz Hernan Hernandez Herrera Energetic analysis in a hot water system: A hotel facility case study Journal of Sustainable Development of Energy, Water and Environment Systems domestic hot water energy saving chiller hotels heat recovery |
| title | Energetic analysis in a hot water system: A hotel facility case study |
| title_full | Energetic analysis in a hot water system: A hotel facility case study |
| title_fullStr | Energetic analysis in a hot water system: A hotel facility case study |
| title_full_unstemmed | Energetic analysis in a hot water system: A hotel facility case study |
| title_short | Energetic analysis in a hot water system: A hotel facility case study |
| title_sort | energetic analysis in a hot water system a hotel facility case study |
| topic | domestic hot water energy saving chiller hotels heat recovery |
| url |
http://www.sdewes.org/jsdewes/pid10.0428
|
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