Energy Savings of Simultaneous Heating and Cooling System According to Indoor Set Temperature Changes in the Comfort Range

This study was conducted to derive the amount of energy savings when applying the method of making the load similar by changing the set temperature of the room in the building to which the simultaneous heating and cooling (SHC) system is applied. Energy savings were derived through theoretical analy...

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Autores principales:	Dae-Uk Shin, Chang-Ho Jeong
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	simultaneous heating and cooling energy savings indoor set temperature thermal comfort load balancing Technology T
Acceso en línea:	https://doaj.org/article/5d5f610d104744f99833fde127b53cc3
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id	oai:doaj.org-article:5d5f610d104744f99833fde127b53cc3
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spelling	oai:doaj.org-article:5d5f610d104744f99833fde127b53cc32021-11-25T17:27:57ZEnergy Savings of Simultaneous Heating and Cooling System According to Indoor Set Temperature Changes in the Comfort Range10.3390/en142276911996-1073https://doaj.org/article/5d5f610d104744f99833fde127b53cc32021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/22/7691https://doaj.org/toc/1996-1073This study was conducted to derive the amount of energy savings when applying the method of making the load similar by changing the set temperature of the room in the building to which the simultaneous heating and cooling (SHC) system is applied. Energy savings were derived through theoretical analysis and comparisons through static simulations were performed to verify the proposed method. As a result, the energy savings are proportional to the energy limit that can be additionally input to the SHC and is proportional to the ratio of the coefficient of performance (COP) difference between the SHC and auxiliary heat source and the auxiliary heat source COP. That is, to increase the amount of energy savings, the maximum possible energy should be input for the SHC, or the SHC COP must be greater than the auxiliary heat source COP. In addition, comfort can be achieved stably by varying the set room temperature in a room with a small load. When a heat storage tank is installed or changing the indoor set temperature of both the hot and cold zones in real time by predicting the indoor load is possible, more energy can be saved.Dae-Uk ShinChang-Ho JeongMDPI AGarticlesimultaneous heating and coolingenergy savingsindoor set temperaturethermal comfortload balancingTechnologyTENEnergies, Vol 14, Iss 7691, p 7691 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	simultaneous heating and cooling energy savings indoor set temperature thermal comfort load balancing Technology T
spellingShingle	simultaneous heating and cooling energy savings indoor set temperature thermal comfort load balancing Technology T Dae-Uk Shin Chang-Ho Jeong Energy Savings of Simultaneous Heating and Cooling System According to Indoor Set Temperature Changes in the Comfort Range
description	This study was conducted to derive the amount of energy savings when applying the method of making the load similar by changing the set temperature of the room in the building to which the simultaneous heating and cooling (SHC) system is applied. Energy savings were derived through theoretical analysis and comparisons through static simulations were performed to verify the proposed method. As a result, the energy savings are proportional to the energy limit that can be additionally input to the SHC and is proportional to the ratio of the coefficient of performance (COP) difference between the SHC and auxiliary heat source and the auxiliary heat source COP. That is, to increase the amount of energy savings, the maximum possible energy should be input for the SHC, or the SHC COP must be greater than the auxiliary heat source COP. In addition, comfort can be achieved stably by varying the set room temperature in a room with a small load. When a heat storage tank is installed or changing the indoor set temperature of both the hot and cold zones in real time by predicting the indoor load is possible, more energy can be saved.
format	article
author	Dae-Uk Shin Chang-Ho Jeong
author_facet	Dae-Uk Shin Chang-Ho Jeong
author_sort	Dae-Uk Shin
title	Energy Savings of Simultaneous Heating and Cooling System According to Indoor Set Temperature Changes in the Comfort Range
title_short	Energy Savings of Simultaneous Heating and Cooling System According to Indoor Set Temperature Changes in the Comfort Range
title_full	Energy Savings of Simultaneous Heating and Cooling System According to Indoor Set Temperature Changes in the Comfort Range
title_fullStr	Energy Savings of Simultaneous Heating and Cooling System According to Indoor Set Temperature Changes in the Comfort Range
title_full_unstemmed	Energy Savings of Simultaneous Heating and Cooling System According to Indoor Set Temperature Changes in the Comfort Range
title_sort	energy savings of simultaneous heating and cooling system according to indoor set temperature changes in the comfort range
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5d5f610d104744f99833fde127b53cc3
work_keys_str_mv	AT daeukshin energysavingsofsimultaneousheatingandcoolingsystemaccordingtoindoorsettemperaturechangesinthecomfortrange AT changhojeong energysavingsofsimultaneousheatingandcoolingsystemaccordingtoindoorsettemperaturechangesinthecomfortrange
_version_	1718412352255164416

Energy Savings of Simultaneous Heating and Cooling System According to Indoor Set Temperature Changes in the Comfort Range

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