A Review of Ground Heat Exchangers for Cooling Application in the Malaysian Climate

Yusof, Taib Mohd; Anuar, Shahrani; Hassan, Ibrahim

doi:10.15282/jmes.8.2015.17.0139

Cited by 17 publications

(15 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The deeper ground level, the bigger thermal inertia so that it reduces the ground temperature fluctuation. This finding is consistent with the previous researches that the temperature changes are negligible as the ground level of depth increase [9,11,16]. This result also confirmed the research conducted by Andrarini et al using simulation tool (i.e., EnergyPlus) to predict the ground temperature in Indonesia.…”

Section: Results Of Field Measurementsupporting

confidence: 92%

“…To achieve the optimum performance of the ground cooling system, some parameters should be considered. Researchers found that the ground temperature is the most critical parameter that affecting the heat transfer of the ground cooling system and thermal storage for energy sources [8][9][10]. The ground temperature is used to provide cooled air for the building thank to the thermal property of the ground (i.e.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Field measurement of ground temperatures in Bandung: devices and the results of measurement

Alfata¹,

Nurjannah²

2020

E3S Web Conf.

View full text Add to dashboard Cite

Ground cooling is considered to be one of the passive cooling strategies in buildings although its application is rarely found in Indonesia. Effectiveness of this strategy depend on the ground temperature profiles. Meanwhile, comprehensive data of ground temperature as a basis of design for ground cooling are still rarely found in Indonesia. This research aims to develop the measurement devices for collecting ground temperatures data and to investigate the ground temperatures in different depths (i.e., 1m, 2m, …, 9m). For measurement, an instrumentation system was developed with the main component of Arduino Mega 2560 as microcontroller. T-type thermocouples with diameter of 0, 5mm mounted in the metal cones were used as the temperature sensor and placed at the different depths. The field measurement was conducted from August to November 2019 in Bandung, West Java, Indonesia. This study demonstrated that the developed instrument system had good performance both in measuring and data acquisition. Model equation was developed to predict the ground temperature at certain depth regardless ground materials and humidity level. The results indicated that the ground temperature significantly lower to 5m-depth. However, the reduction of the temperature after 5m was not significant; the deeper the ground, the temperature changes are negligible.

show abstract

Section: Results Of Field Measurementsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Field measurement of ground temperatures in Bandung: devices and the results of measurement

Alfata¹,

Nurjannah²

2020

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…The analysis was conducted with flowrate of 0.02 to 0.2 kg/s, air inlet temperature (Tair) of 35°C and 100 mm size of PVC pipe class D according to MS 628 Standard. Ground temperature is taken at minimum temperature of the depth of 2 metre below the ground surface [20][21][22]. Table 1 tabulates characteristic and condition of the pipe used in the study.…”

Section: Methodsmentioning

confidence: 99%

The Effect of Flowrate and Effectiveness on Theoretical Design and Thermal Characteristic of a GHE

et al. 2018

Self Cite

View full text Add to dashboard Cite

Ground heat exchanger is an exciting technique to reduce energy consumption in building especially in hot climate countries. Implementation of GHE for commercial unit in Malaysia is almost none in record. Thus, performance study of the GHE in Malaysia is crucial to be conducted either experimentally or numerically. Therefore, this paper presents the performance of GHE in term of effectiveness, outlet temperature and rate of heat transfer based on mathematical model. The model is developed based on cross flow heat exchanger with one fluid unmixed. There are two variable parameter used in the analysis which is effectiveness and flowrate of the air for 25 meter length of a PVC pipe. Three effectiveness values which is 0.8, 0.9 and 0.99 have been analysed in this study. Meanwhile, flowrate of air is ranging from 0.02 to 0.2 kg/s. Results show that flowrate at 0.02 kg/s gives great temperature reduction in the pipe compared with higher flowrate. However, flowrate of 0.2 kg/s produces higher cooling potential. Characteristic of the GHE for the rate of heat transfer with 80, 90 and 99 percent effectiveness also have been developed and it has been found that effectiveness of 0.9 provide good combination between flowrate and the rate of heat transfer for 25 meter length of the pipe

show abstract

“…Bordoloi collects the latest advancements, presenting different combinations of EAHEs and their thermal performances [6]. The reviews of Ozgener [7], Sigh [8], Ascione [9], and Yusof [10] present studies conducted on EAHEs (earth to air heat exchanger systems) in Turkey, India, Italy, and Malaysia, respectively, giving some indication about performances, costs, and perspectives.…”

Section: Introductionmentioning

confidence: 99%

Ancient Use of Natural Geothermal Resources: Analysis of Natural Cooling of 16th Century Villas in Costozza (Italy) as a Reference for Modern Buildings

Ferrucci

Peron

2018

Sustainability

View full text Add to dashboard Cite

The geothermal cooling system of six 16th century villas in Costozza (Vicenza, Italy) is analysed and modelled using computational fluid dynamics and referring to in-field monitoring data. The system passively cools the villas in summertime by means of underground ducts connected to the caves present in the nearby hills. It still perfectly works in Villa Aeolia, which is analysed here in more detail. The outcomes permit us to better understand the functioning conditions and to improve the conservation of the villas as a whole. Furthermore, the ancient cooling system can be used as a reference for how geothermal renewable resources can be used to improve indoor comfort and limit energy consumption in modern buildings in a temperate climate. A macroscopic analysis of the global airflow system as well as a detailed analysis of Villa Aeolia are developed. All results are validated with analytical methods, numerical methods, and with past experimental records. The system can provide fresh airflow rates that cool the walls of the room and maintain the temperature below 20 ° C even on hot summer days. An advantage is that the system works in a self-adaptive way, the airflow increases when the outdoor temperature increases. This self-adjustment allows us to compare the cooling system to a modern environmental control system.

show abstract

A Review of Ground Heat Exchangers for Cooling Application in the Malaysian Climate

Cited by 17 publications

References 58 publications

Field measurement of ground temperatures in Bandung: devices and the results of measurement

Field measurement of ground temperatures in Bandung: devices and the results of measurement

The Effect of Flowrate and Effectiveness on Theoretical Design and Thermal Characteristic of a GHE

Ancient Use of Natural Geothermal Resources: Analysis of Natural Cooling of 16th Century Villas in Costozza (Italy) as a Reference for Modern Buildings

Contact Info

Product

Resources

About