Reduced Scale Experimental Modelling of Distributed Thermal Response Tests for the Estimation of the Ground Thermal Conductivity

The knowledge of the ground thermal properties, and in particular the ground thermal conductivity is fundamental for the correct sizing of the Ground Coupled Heat Pump (GCHP) plant. The Thermal Response Test (TRT) is the most used experimental technique for estimating the ground thermal conductivity...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Stefano Morchio, Marco Fossa, Antonella Priarone, Alessia Boccalatte
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ground coupled heat pumps ground thermal conductivity thermal response test scale analysis scale prototype Technology T
Acceso en línea:	https://doaj.org/article/28c1bef4c9e94e2ab32aab948da4d6a1
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:28c1bef4c9e94e2ab32aab948da4d6a1
record_format	dspace
spelling	oai:doaj.org-article:28c1bef4c9e94e2ab32aab948da4d6a12021-11-11T15:46:47ZReduced Scale Experimental Modelling of Distributed Thermal Response Tests for the Estimation of the Ground Thermal Conductivity10.3390/en142169551996-1073https://doaj.org/article/28c1bef4c9e94e2ab32aab948da4d6a12021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/6955https://doaj.org/toc/1996-1073The knowledge of the ground thermal properties, and in particular the ground thermal conductivity is fundamental for the correct sizing of the Ground Coupled Heat Pump (GCHP) plant. The Thermal Response Test (TRT) is the most used experimental technique for estimating the ground thermal conductivity. This paper presents an experimental setup aimed to realise a suitable scale prototype of the real borehole heat exchanger (BHE) and the surrounding ground for reduced scale TRT experiments. The scaled ground volume is realised with a slate block. Numerical analyses were carried out to correctly determine suitable geometric and operational parameters for the present setup. The scaled heat exchanger, inserted into the block, is created with additive technology (3D printer) and equipped with a central electrical heater along its entire depth and with temperature sensors at different radial distances and depths. Present measurements highlight the possibility to reliably perform a TRT experiment and to estimate the slate/ground thermal conductivity with an agreement of about +12% with respect to measurements provided by a standard commercial conductivity meter on proper cylindrical samples of the same material and onto 10 different portions of the slate block.Stefano MorchioMarco FossaAntonella PriaroneAlessia BoccalatteMDPI AGarticleground coupled heat pumpsground thermal conductivitythermal response testscale analysisscale prototypeTechnologyTENEnergies, Vol 14, Iss 6955, p 6955 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ground coupled heat pumps ground thermal conductivity thermal response test scale analysis scale prototype Technology T
spellingShingle	ground coupled heat pumps ground thermal conductivity thermal response test scale analysis scale prototype Technology T Stefano Morchio Marco Fossa Antonella Priarone Alessia Boccalatte Reduced Scale Experimental Modelling of Distributed Thermal Response Tests for the Estimation of the Ground Thermal Conductivity
description	The knowledge of the ground thermal properties, and in particular the ground thermal conductivity is fundamental for the correct sizing of the Ground Coupled Heat Pump (GCHP) plant. The Thermal Response Test (TRT) is the most used experimental technique for estimating the ground thermal conductivity. This paper presents an experimental setup aimed to realise a suitable scale prototype of the real borehole heat exchanger (BHE) and the surrounding ground for reduced scale TRT experiments. The scaled ground volume is realised with a slate block. Numerical analyses were carried out to correctly determine suitable geometric and operational parameters for the present setup. The scaled heat exchanger, inserted into the block, is created with additive technology (3D printer) and equipped with a central electrical heater along its entire depth and with temperature sensors at different radial distances and depths. Present measurements highlight the possibility to reliably perform a TRT experiment and to estimate the slate/ground thermal conductivity with an agreement of about +12% with respect to measurements provided by a standard commercial conductivity meter on proper cylindrical samples of the same material and onto 10 different portions of the slate block.
format	article
author	Stefano Morchio Marco Fossa Antonella Priarone Alessia Boccalatte
author_facet	Stefano Morchio Marco Fossa Antonella Priarone Alessia Boccalatte
author_sort	Stefano Morchio
title	Reduced Scale Experimental Modelling of Distributed Thermal Response Tests for the Estimation of the Ground Thermal Conductivity
title_short	Reduced Scale Experimental Modelling of Distributed Thermal Response Tests for the Estimation of the Ground Thermal Conductivity
title_full	Reduced Scale Experimental Modelling of Distributed Thermal Response Tests for the Estimation of the Ground Thermal Conductivity
title_fullStr	Reduced Scale Experimental Modelling of Distributed Thermal Response Tests for the Estimation of the Ground Thermal Conductivity
title_full_unstemmed	Reduced Scale Experimental Modelling of Distributed Thermal Response Tests for the Estimation of the Ground Thermal Conductivity
title_sort	reduced scale experimental modelling of distributed thermal response tests for the estimation of the ground thermal conductivity
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/28c1bef4c9e94e2ab32aab948da4d6a1
work_keys_str_mv	AT stefanomorchio reducedscaleexperimentalmodellingofdistributedthermalresponsetestsfortheestimationofthegroundthermalconductivity AT marcofossa reducedscaleexperimentalmodellingofdistributedthermalresponsetestsfortheestimationofthegroundthermalconductivity AT antonellapriarone reducedscaleexperimentalmodellingofdistributedthermalresponsetestsfortheestimationofthegroundthermalconductivity AT alessiaboccalatte reducedscaleexperimentalmodellingofdistributedthermalresponsetestsfortheestimationofthegroundthermalconductivity
_version_	1718434011239415808

Reduced Scale Experimental Modelling of Distributed Thermal Response Tests for the Estimation of the Ground Thermal Conductivity

Ejemplares similares