Thermal characteristics and operation efficiency of solid-state electro thermal storage

This work is dedicated to studying characteristics of proposed dynamic-type electro-thermal storages (ETS). Experimental (laboratory) studies of thermal status of magnesium oxide heat-storage cells of conventional design with two slot-shaped channels and chamotte heat-storage cells with two round-sh...

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Autores principales:	Aleksei V. Khimenko, Dmitry A. Tikhomirov, Aleksey V. Kuzmichev, Stanislav S. Trunov, Olga V. Shepovalova
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Electro-thermal storage Thermal characteristics Energy efficiency Environmental compatibility Wind and solar installations Heat supply in rural areas Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/f4846838983a432fb40d65d189f14d81
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spelling	oai:doaj.org-article:f4846838983a432fb40d65d189f14d812021-11-18T04:49:48ZThermal characteristics and operation efficiency of solid-state electro thermal storage2352-484710.1016/j.egyr.2021.07.129https://doaj.org/article/f4846838983a432fb40d65d189f14d812021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352484721005904https://doaj.org/toc/2352-4847This work is dedicated to studying characteristics of proposed dynamic-type electro-thermal storages (ETS). Experimental (laboratory) studies of thermal status of magnesium oxide heat-storage cells of conventional design with two slot-shaped channels and chamotte heat-storage cells with two round-shaped channels, in the modes of heat charging and heat emission of ETS have been carried out. Results of experiments on temperature change of electro-thermal storage units and that of heated air in ETS, for a number of reference points, in operating modes of charging and heat emission were applied in calculations of thermal characteristics of ETS including average value of heat-transfer coefficient of ETS external surface, average value of heat-transfer coefficient, in air channels of heat-storage units of ETS, aggregate value of ETS heat emission, quantity of heat accumulated in ETS, in absolute and relative units, average rates of heating and cooling of heat-storage units, in charging and heat emission operating modes of ETS. The efficiency of operation of standard magnesium oxide ETS with heat-storage cells having slot-shaped channels and chamotte ETS with heat-storage cells having round-shaped channels has been estimated. The developed design of chamotte ETS with heat-storage cells having round-shaped channels makes it possible to increase heat emission in channels of heat-storage cells by 15 % and to reduce the final cost of ETS by, at least, 15 % compared to existing devices. Mass-scale implementation of electro-thermal storage systems for heat supply in rural areas and farmer enterprises will make it possible to reduce power loss in networks, to normalize the daily load curve in power network and to improve regional environmental situation. Application of ETS in combination with power installations based on renewable energy sources (such as wind and solar installations) is considered to be perspective solution, as well.Aleksei V. KhimenkoDmitry A. TikhomirovAleksey V. KuzmichevStanislav S. TrunovOlga V. ShepovalovaElsevierarticleElectro-thermal storageThermal characteristicsEnergy efficiencyEnvironmental compatibilityWind and solar installationsHeat supply in rural areasElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENEnergy Reports, Vol 7, Iss , Pp 219-231 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electro-thermal storage Thermal characteristics Energy efficiency Environmental compatibility Wind and solar installations Heat supply in rural areas Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Electro-thermal storage Thermal characteristics Energy efficiency Environmental compatibility Wind and solar installations Heat supply in rural areas Electrical engineering. Electronics. Nuclear engineering TK1-9971 Aleksei V. Khimenko Dmitry A. Tikhomirov Aleksey V. Kuzmichev Stanislav S. Trunov Olga V. Shepovalova Thermal characteristics and operation efficiency of solid-state electro thermal storage
description	This work is dedicated to studying characteristics of proposed dynamic-type electro-thermal storages (ETS). Experimental (laboratory) studies of thermal status of magnesium oxide heat-storage cells of conventional design with two slot-shaped channels and chamotte heat-storage cells with two round-shaped channels, in the modes of heat charging and heat emission of ETS have been carried out. Results of experiments on temperature change of electro-thermal storage units and that of heated air in ETS, for a number of reference points, in operating modes of charging and heat emission were applied in calculations of thermal characteristics of ETS including average value of heat-transfer coefficient of ETS external surface, average value of heat-transfer coefficient, in air channels of heat-storage units of ETS, aggregate value of ETS heat emission, quantity of heat accumulated in ETS, in absolute and relative units, average rates of heating and cooling of heat-storage units, in charging and heat emission operating modes of ETS. The efficiency of operation of standard magnesium oxide ETS with heat-storage cells having slot-shaped channels and chamotte ETS with heat-storage cells having round-shaped channels has been estimated. The developed design of chamotte ETS with heat-storage cells having round-shaped channels makes it possible to increase heat emission in channels of heat-storage cells by 15 % and to reduce the final cost of ETS by, at least, 15 % compared to existing devices. Mass-scale implementation of electro-thermal storage systems for heat supply in rural areas and farmer enterprises will make it possible to reduce power loss in networks, to normalize the daily load curve in power network and to improve regional environmental situation. Application of ETS in combination with power installations based on renewable energy sources (such as wind and solar installations) is considered to be perspective solution, as well.
format	article
author	Aleksei V. Khimenko Dmitry A. Tikhomirov Aleksey V. Kuzmichev Stanislav S. Trunov Olga V. Shepovalova
author_facet	Aleksei V. Khimenko Dmitry A. Tikhomirov Aleksey V. Kuzmichev Stanislav S. Trunov Olga V. Shepovalova
author_sort	Aleksei V. Khimenko
title	Thermal characteristics and operation efficiency of solid-state electro thermal storage
title_short	Thermal characteristics and operation efficiency of solid-state electro thermal storage
title_full	Thermal characteristics and operation efficiency of solid-state electro thermal storage
title_fullStr	Thermal characteristics and operation efficiency of solid-state electro thermal storage
title_full_unstemmed	Thermal characteristics and operation efficiency of solid-state electro thermal storage
title_sort	thermal characteristics and operation efficiency of solid-state electro thermal storage
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/f4846838983a432fb40d65d189f14d81
work_keys_str_mv	AT alekseivkhimenko thermalcharacteristicsandoperationefficiencyofsolidstateelectrothermalstorage AT dmitryatikhomirov thermalcharacteristicsandoperationefficiencyofsolidstateelectrothermalstorage AT alekseyvkuzmichev thermalcharacteristicsandoperationefficiencyofsolidstateelectrothermalstorage AT stanislavstrunov thermalcharacteristicsandoperationefficiencyofsolidstateelectrothermalstorage AT olgavshepovalova thermalcharacteristicsandoperationefficiencyofsolidstateelectrothermalstorage
_version_	1718425011447922688

Thermal characteristics and operation efficiency of solid-state electro thermal storage

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