Eco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials

Indoor heating systems currently used are highly dependent on fossil fuels; hence, it is urgent to develop a new heating system to achieve carbon zero-emission. A solar air heater is eco-friendly because it generates nearly zero greenhouse gases. In this study, a parametric study was conducted for o...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jihu Lee, Sung-Hun Son, Kibum Kim
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	phase change materials solar air heater carbon dioxide simulation Technology T
Acceso en línea:	https://doaj.org/article/d5f06d67a36b4a349467d3ec91f4f352
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d5f06d67a36b4a349467d3ec91f4f352
record_format	dspace
spelling	oai:doaj.org-article:d5f06d67a36b4a349467d3ec91f4f3522021-11-11T16:08:55ZEco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials10.3390/en142174231996-1073https://doaj.org/article/d5f06d67a36b4a349467d3ec91f4f3522021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7423https://doaj.org/toc/1996-1073Indoor heating systems currently used are highly dependent on fossil fuels; hence, it is urgent to develop a new heating system to achieve carbon zero-emission. A solar air heater is eco-friendly because it generates nearly zero greenhouse gases. In this study, a parametric study was conducted for optimizing solar air heater design applicable to indoor heating. Installing the internal structure in the solar heater changes the interior flow characteristic, resulting in the air temperature increased by about 14.2 K on average compared to the heater without the internal structure. An additional case study was carried out to optimize the ideal quantity of phase change materials (PCM) in terms of mass fraction and heat capacity for various operating conditions. An excessive amount of PCM (e.g., 66% of the storage space filled with PCM) deteriorates the performance of the air heater unless the entire PCM could be melted during the daytime. After heating, the air temperature was maintained the longest when only 33% of the internal space was filled with PCM. The solar air heater can fully replace or partly assist a conventional heater for indoor heating, and it could reduce approximately 0.6 tCO<sub>2</sub> per year.Jihu LeeSung-Hun SonKibum KimMDPI AGarticlephase change materialssolar air heatercarbon dioxidesimulationTechnologyTENEnergies, Vol 14, Iss 7423, p 7423 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	phase change materials solar air heater carbon dioxide simulation Technology T
spellingShingle	phase change materials solar air heater carbon dioxide simulation Technology T Jihu Lee Sung-Hun Son Kibum Kim Eco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials
description	Indoor heating systems currently used are highly dependent on fossil fuels; hence, it is urgent to develop a new heating system to achieve carbon zero-emission. A solar air heater is eco-friendly because it generates nearly zero greenhouse gases. In this study, a parametric study was conducted for optimizing solar air heater design applicable to indoor heating. Installing the internal structure in the solar heater changes the interior flow characteristic, resulting in the air temperature increased by about 14.2 K on average compared to the heater without the internal structure. An additional case study was carried out to optimize the ideal quantity of phase change materials (PCM) in terms of mass fraction and heat capacity for various operating conditions. An excessive amount of PCM (e.g., 66% of the storage space filled with PCM) deteriorates the performance of the air heater unless the entire PCM could be melted during the daytime. After heating, the air temperature was maintained the longest when only 33% of the internal space was filled with PCM. The solar air heater can fully replace or partly assist a conventional heater for indoor heating, and it could reduce approximately 0.6 tCO<sub>2</sub> per year.
format	article
author	Jihu Lee Sung-Hun Son Kibum Kim
author_facet	Jihu Lee Sung-Hun Son Kibum Kim
author_sort	Jihu Lee
title	Eco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials
title_short	Eco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials
title_full	Eco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials
title_fullStr	Eco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials
title_full_unstemmed	Eco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials
title_sort	eco-friendly and economical solar heater design using internal structure and phase change materials
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d5f06d67a36b4a349467d3ec91f4f352
work_keys_str_mv	AT jihulee ecofriendlyandeconomicalsolarheaterdesignusinginternalstructureandphasechangematerials AT sunghunson ecofriendlyandeconomicalsolarheaterdesignusinginternalstructureandphasechangematerials AT kibumkim ecofriendlyandeconomicalsolarheaterdesignusinginternalstructureandphasechangematerials
_version_	1718432442390413312

Eco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials

Ejemplares similares