Energy metrics of earth–air heat exchanger system for hot and dry climatic conditions of India

Bisoniya, Trilok Singh; Kumar, Anil; Baredar, Prashant

doi:10.1016/j.enbuild.2014.10.012

Cited by 62 publications

(33 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To check the validity of the built numerical model, a verification was made by solving the experimental and theoretical model presented in Trilok et al and Bisoniya et al, respectively. The same experimental and theoretical model which is presented in Trilok et al is an EAHE system consisting of a pipe with 0.1016 m diameter, 19.228 m length, and 2 m depth of burial.…”

Section: Resultsmentioning

confidence: 99%

Parametric study on the performance of the earth‐to‐air heat exchanger for cooling and heating applications

Hasan

Noori

Shkarah

2019

Heat Trans. Asian Res.

View full text Add to dashboard Cite

To reduce energy consumption, the earth-to-air heat exchanger (EAHE) is a suitable technique for cooling and heating buildings. This paper studies numerically the effect of some design parameters (pipe diameter, inlet condition, pipe length, and outlet condition) on the overall performance of the EAHE system. Four diameters of the EAHE pipe (2, 3, 4, and 6 in) are studied and this numerical study has been done for summer and winter seasons for Nasiriyah city in southern Iraq. First, the built numerical model was validated against the experimental model, and the results of comparison showed a good consensus. After the validation and by using computational fluid dynamics modeling, the overall performance of the EAHE system with all pipe diameters was analyzed with ranges of air velocity, DBT or inlet temperature, and a pipe length of 50 m. The simulated results showed that the EAHE system with 6 in pipe diameter has the best values of overall performance, but from the thermal performance point of view, the 2 in pipe diameter is more suitable. K E Y W O R D S computational fluid dynamics, earth-to-air heat exchanger system, geothermal energy, numerical investigation, thermal performance Heat Transfer-Asian Res. 2019;48:1805-1829.wileyonlinelibrary.com/journal/htj

show abstract

Section: Resultsmentioning

confidence: 99%

Parametric study on the performance of the earth‐to‐air heat exchanger for cooling and heating applications

Hasan

Noori

Shkarah

2019

Heat Trans. Asian Res.

View full text Add to dashboard Cite

show abstract

“…The thermo-physical properties of materials used in design calculations of EAHE are shown in Table 1 (Bisoniya et al 2014a;2014b;2014c;2015). The value of Reynolds number was calculated for air flow velocities of 2, 3.5, and 5 m/s and thermo-physical properties of air at 16.7°C for winter heating application.…”

Section: Resultsmentioning

confidence: 99%

Design of earth–air heat exchanger system

Bisoniya

2015

Geotherm Energy

Self Cite

View full text Add to dashboard Cite

The earth-air heat exchanger (EAHE) is a promising technique which can effectively be used to reduce the heating/cooling load of a building by preheating the air in winter and vice versa in summer. In the last two decades, a lot of research has been done to develop analytical and numerical models for the analysis of EAHE systems. Many researchers have developed sophisticated equations and procedures but they cannot be easily recast into design equations and must be used by trial-and-error. In this paper, the author has developed a one-dimensional model of the EAHE systems using a set of simplified design equations. The method to calculate the earth's undisturbed temperature (EUT) and more recently developed correlations for friction factor and Nusselt number are used to ensure higher accuracy in the calculation of heat transfer. The developed equations enable designers to calculate heat transfer, convective heat transfer coefficient, pressure drop, and length of pipe of the EAHE system. A longer pipe of smaller diameter buried at a greater depth and having lower air flow velocity results in increase in performance of the EAHE system.

show abstract

“…Ventilated air is cooled through recirculation in the underground pipes. Bisoniya et al [33] studied the energy metrics for an EAHE system under hot and dry climate conditions in India. The total yearly energy output of an EAHE system with an air velocity of 5 m/s was 1290.53 kWh with a payback period of 1.29 years.…”

Section: Passive Building Energy Saving Technologiesmentioning

confidence: 99%

Building energy-consumption status worldwide and the state-of-the-art technologies for zero-energy buildings during the past decade

Cao

Dai

Liu

2016

Energy and Buildings

1,089

387

View full text Add to dashboard Cite

Energy metrics of earth–air heat exchanger system for hot and dry climatic conditions of India

Cited by 62 publications

References 21 publications

Parametric study on the performance of the earth‐to‐air heat exchanger for cooling and heating applications

Parametric study on the performance of the earth‐to‐air heat exchanger for cooling and heating applications

Design of earth–air heat exchanger system

Building energy-consumption status worldwide and the state-of-the-art technologies for zero-energy buildings during the past decade

Contact Info

Product

Resources

About