Thermal Analysis of a Ground Passive Cooling (GPC) Using Experimental Method

Ground temperature gets attenuated as the depth of the ground increase and become constant throughout the year at a sufficient depth. On the low side of the ground temperature relative to the ambient, it can be utilized for space cooling by means of ground passive cooling (GPC) technique. GPC techni...

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Main Authors:	T. M., Yusof, S., Anuar, Hassan, Ibrahim
Format:	Conference or Workshop Item
Language:	English
Published:	2015
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/10645/ http://umpir.ump.edu.my/id/eprint/10645/1/Thermal%20Analysis%20of%20a%20Ground%20Passive%20Cooling%20%28GPC%29%20Using%20Experimental%20Method.pdf

id	ump-10645
recordtype	eprints
spelling	ump-106452018-01-22T02:46:38Z http://umpir.ump.edu.my/id/eprint/10645/ Thermal Analysis of a Ground Passive Cooling (GPC) Using Experimental Method T. M., Yusof S., Anuar Hassan, Ibrahim TJ Mechanical engineering and machinery Ground temperature gets attenuated as the depth of the ground increase and become constant throughout the year at a sufficient depth. On the low side of the ground temperature relative to the ambient, it can be utilized for space cooling by means of ground passive cooling (GPC) technique. GPC technique is a method requires a pipe or several pipes buried below the ground surface at which temperatures are lower than outside ambient temperature. By circulation ambient air inside the pipe, heat will be rejected from the air inside the pipe to the ground surrounding. Performance of the GPC is crucial and it is depend on the local ground temperature, ground thermal properties and the GPC’s pipe specification. Since the ambient temperature in Malaysia during the daytime is ranging from 30 to 35°C, thus it has a great potential for implementing GPC as an alternative method in building cooling. Ground temperature in Malaysia has been analyzed and it is depend on depth, thermal diffusivity and time and it is lower than the ambient temperature at certain depth. Therefore, it has capability to serve cooling by mean of GPC. This paper presents the performance of GPC in term of outlet temperature and rate of heat transfer based on mathematical model and experimental study. Different input parameters have been investigated such as depth of the ground, input temperature and flowrate of the air inside the pipe. Experimental rig of the GPC has been developed with the main purpose to create actual ground condition. A PCV pipe with 8.7 m length has been used in the experiment. Results show that flowrate at 0.03 kg/s and Tg = 23°C gives great temperature reduction in the pipe compared with higher flowrate and ground temperature. Highest rate of heat transfer of 473 W occurred at flowrate of 0.07 kg/s and Tg = 23°C. The experimental results also have been validated with mathematical model and obtained close agreement. 2015 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/10645/1/Thermal%20Analysis%20of%20a%20Ground%20Passive%20Cooling%20%28GPC%29%20Using%20Experimental%20Method.pdf T. M., Yusof and S., Anuar and Hassan, Ibrahim (2015) Thermal Analysis of a Ground Passive Cooling (GPC) Using Experimental Method. In: International Conference On Mechanical Engineering Research (ICMER2015), 18-19 August 2015 , Kuantan, Pahang. . (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery T. M., Yusof S., Anuar Hassan, Ibrahim Thermal Analysis of a Ground Passive Cooling (GPC) Using Experimental Method
description	Ground temperature gets attenuated as the depth of the ground increase and become constant throughout the year at a sufficient depth. On the low side of the ground temperature relative to the ambient, it can be utilized for space cooling by means of ground passive cooling (GPC) technique. GPC technique is a method requires a pipe or several pipes buried below the ground surface at which temperatures are lower than outside ambient temperature. By circulation ambient air inside the pipe, heat will be rejected from the air inside the pipe to the ground surrounding. Performance of the GPC is crucial and it is depend on the local ground temperature, ground thermal properties and the GPC’s pipe specification. Since the ambient temperature in Malaysia during the daytime is ranging from 30 to 35°C, thus it has a great potential for implementing GPC as an alternative method in building cooling. Ground temperature in Malaysia has been analyzed and it is depend on depth, thermal diffusivity and time and it is lower than the ambient temperature at certain depth. Therefore, it has capability to serve cooling by mean of GPC. This paper presents the performance of GPC in term of outlet temperature and rate of heat transfer based on mathematical model and experimental study. Different input parameters have been investigated such as depth of the ground, input temperature and flowrate of the air inside the pipe. Experimental rig of the GPC has been developed with the main purpose to create actual ground condition. A PCV pipe with 8.7 m length has been used in the experiment. Results show that flowrate at 0.03 kg/s and Tg = 23°C gives great temperature reduction in the pipe compared with higher flowrate and ground temperature. Highest rate of heat transfer of 473 W occurred at flowrate of 0.07 kg/s and Tg = 23°C. The experimental results also have been validated with mathematical model and obtained close agreement.
format	Conference or Workshop Item
author	T. M., Yusof S., Anuar Hassan, Ibrahim
author_facet	T. M., Yusof S., Anuar Hassan, Ibrahim
author_sort	T. M., Yusof
title	Thermal Analysis of a Ground Passive Cooling (GPC) Using Experimental Method
title_short	Thermal Analysis of a Ground Passive Cooling (GPC) Using Experimental Method
title_full	Thermal Analysis of a Ground Passive Cooling (GPC) Using Experimental Method
title_fullStr	Thermal Analysis of a Ground Passive Cooling (GPC) Using Experimental Method
title_full_unstemmed	Thermal Analysis of a Ground Passive Cooling (GPC) Using Experimental Method
title_sort	thermal analysis of a ground passive cooling (gpc) using experimental method
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/10645/ http://umpir.ump.edu.my/id/eprint/10645/1/Thermal%20Analysis%20of%20a%20Ground%20Passive%20Cooling%20%28GPC%29%20Using%20Experimental%20Method.pdf
first_indexed	2023-09-18T22:10:29Z
last_indexed	2023-09-18T22:10:29Z
_version_	1777414993712513024

Thermal Analysis of a Ground Passive Cooling (GPC) Using Experimental Method

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