Parametric simulation and experimental analysis of earth air heat exchanger with solar air heating duct

Jakhar, Sanjeev; Misra, Rohit; Soni, Manoj Kumar; Gakkhar, Nikhil

doi:10.1016/j.jestch.2016.01.009

Cited by 27 publications

(14 citation statements)

References 13 publications

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“…The results show that this technique has been able to ensure summer and winter thermal comfort. Jakhar et al [56] studied numerically with TRNSYS 17 simulation Tools an EAHE and solar heating system. The study is validated with experimental results for the climatic conditions of Ajmer (India) for the winter period.…”

Section: Eahe Studies Reviewmentioning

confidence: 99%

Earth to Air Heat Exchanger and Its Applications in Arid Regions - An Updated Review

Sakhri¹,

Menni²,

Chamkha³

et al. 2020

IJES

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Earth to Air Heat Exchanger ETAHE or Air Ground Heat Exchanger (AGHE) is a renewable technique based on geothermal source used for many centuries in arid and desert regions and considered as a principal element of vernacular and traditional architecture. Arid regions are characterized by a severe winter and summer weather conditions leads to a large thermal discomfort for the big part of the year. Many researchers studied the potentials of this technique to ensure thermal comfort inside buildings for summer and winter seasons. The present study is a review of numerical, experimental, parametric and economic studies of an earth to air heat exchanger with a focus on its application in semi-arid and arid regions. Using an air-to-ground heat exchanger for thermal comfort requires a deep understanding of geothermal deposits and these natural potentials and particularly in desert and arid regions.

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Section: Eahe Studies Reviewmentioning

confidence: 99%

Earth to Air Heat Exchanger and Its Applications in Arid Regions - An Updated Review

Sakhri¹,

Menni²,

Chamkha³

et al. 2020

IJES

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“…Rakesh et al [64] studied about the behaviour of various factors influencing air outlet temperature, including air velocity, pipe diameter, pipe length and depth of the pipe in the basement. Last F. Niu et al [114] conducted a parametric analysis study of the EAPHE system to investigate exit temperature, humidity, etc. and also developed a regression model to perform in various operating conditions in order to analyse the required performance.…”

Section: Influence Of Pipe Parameter On the Performance Of Eaphe Systemmentioning

confidence: 99%

Development of Passive Energy Source as Earth Air Pipe Heat Exchangers (Eaphe) System - A Review

Verma

Bansal

Rana

2020

Journal of Thermal Engineering

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Diversity in living standards and population growth leads to increased global energy consumption. Human comfort always plays a vital role in using different means to reduce the effects of weather conditions. The building sector captures approximately 40% of the global energy and it is most commonly used for cooling and for heating of the space occupied due to the use of appliances such as room heaters or air coolers, air conditioners, etc. The use of these appliances contributes significantly to global warming, which is a very serious environmental problem. Passive energy sources are used widely to reduce the consumption of energy due to heating and cooling of the building. Earth air pipe heat exchanger is one of the passive cooling/ heating technology used for the indoor thermal comfort of the occupants. In this review article, various discussion has been done on the use of passive energy explained by the earth air pipe heat exchanger and various investigations conducted by authors under different conditions and parameters like air velocity, pipe depth, pipe length, etc. that the thermal conductivity of the soil is the key point to the efficient operation of the earth air pipe heat exchanger system and it is also necessary to maintain the thermal conductivity of the soil in the vicinity of the pipe in order to achieve better performance in operation.

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“…Jakhar vd. [4], tarafından Hindistan'ın Ajmer şehrinde yapılan çalışmada THID sisteminin kış şartlarında ısıl konfor gereksinimlerini karşılamak için yetersiz olduğu tespit edilmiştir. Ancak sisteme güneş enerjili hava ısıtma kanalı entegre edilerek THID sisteminin sahip olduğu ısıtma potansiyelinin arttırıldığı gözlemlenmiştir.…”

Section: şEkil 2 Binalarda Enerji Tüketim Oranları (Energy Consumptiunclassified

Farklı malzemelerin toprak – hava ısı değiştiricisinin (THID) ısıl performansına etkisinin incelenmesi

Bulut

Demirtaş²,

Beyazit³

2018

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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Highlights:Graphical/Tabular Abstract  The effect of pipe materials used in the earth -air heat exchanger (EAHX) on thermal performance  The comparison of different materials in heating and cooling conditions  The effect of soil and outdoor temperatures with different materials on the thermal performance of EAHX The use of renewable energy sources in heating, cooling and ventilation applications increases and leads to reduce the energy consumption in buildings. Earth -Air Heat Exchanger (EAHX) systems utilize the thermal energy of the soil and can reduce energy use in buildings. In this study, the effect of different materials usage on EAHX systems was examined. The thermal performance of two EAHX systems using PVC and metal pipes at 3 m soil depth were investigated experimentally under Şanlıurfa climatic conditions. Figure A. Schematic drawing of the EAHX systemsPurpose: In this study, it is aimed to investigate the effect of different material usage on performance of EAHX systems. Theory and Methods:In this study, two EAHX systems made of PVC and metal pipe were established at a depth of 3 m in the area belonging to the Harran University. Duct type radial fans with the same specifications were used in both EAHX systems. Measurements were taken from the systems for one year and the analyses were made separately for the heating conditions (winter period) and the cooling conditions (summer period). Results:The temperature measurement results of EAHX systems in heating conditions were examined and it was understood that especially in the time interval of low outside temperature, the temperature of the metal pipe EAHX system is 1 or 2 o C higher than the other. In the June, July, August and September months, which were selected as the cooling season, it was seen that the metal pipe outlet temperature was about 5 o C lower than the PVC pipe outlet temperature in the time period of high outdoor temperature. Conclusion:It has been determined that the metal pipe EAHX system has better thermal performance than the EAHX system with PVC pipe. In addition, when the temperature difference between the outside air and soil is low, it is observed that the output temperatures of metal and PVC systems are very close to each other.

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Parametric simulation and experimental analysis of earth air heat exchanger with solar air heating duct

Cited by 27 publications

References 13 publications

Earth to Air Heat Exchanger and Its Applications in Arid Regions - An Updated Review

Earth to Air Heat Exchanger and Its Applications in Arid Regions - An Updated Review

Development of Passive Energy Source as Earth Air Pipe Heat Exchangers (Eaphe) System - A Review

Farklı malzemelerin toprak – hava ısı değiştiricisinin (THID) ısıl performansına etkisinin incelenmesi

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