Energy and exergy analyses of a helicoidal water to air geothermal heat exchanger for arid regions

Hadjadj, Abdessamia; Atia, Abdelmalek; Haoua, Boubaker Ben; Arıcı, Müslüm; Naili, Nabiha; Kaddour, Abdelmadjid

doi:10.1080/15567036.2021.1970859

Cited by 14 publications

(3 citation statements)

References 31 publications

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“…The exergy and energy efficiency of the vertical borehole GSHP is 29.90% and 74.85%. Similarly, Maximal exergy and energetic efficiencies of the Helicoidal water-air geothermal heat exchanger, reaching 89% and 92%, respectively, are obtained at 0.035 kg s −1 mass flow rate [223]. The exergy analysis of a year-round continuously operated GSHP system has been done experimentally for space heating applications [84].…”

Section: Energy and Exergy Analysismentioning

confidence: 99%

Fossil energy reduction for heating and cooling of buildings using shallow geothermal integrated energy systems – a comprehensive review

KUMAR

2023

Journal of Thermal Engineering

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Ground source heat pumps (GSHP) are a very efficient system for space heating and cooling, and it was established in 1904. GSHPs can minimize the environmental effect of buildings by using the ground as a renewable energy source. The ground will act as a heat sink or heat source. The research collection aims at finding the various possible opportunities for the effec-tive integration of shallow geothermal energy (SGE) to decrease the fossil energy in the built environment and to reduce emission associated with it. The direct utilization of SGE using a ground source heat pump (GSHP) has been reviewed in detail for global north and global south countries, with a primary focus on heating application. The punctual information of results of various authors have been extensively summarized. This review discusses the GSHP installation status, SGE availability, GSHP system simulation, feasibilities, and performance. Worldwide more than one million GSHP systems have been installed, and the system is prev-alent in Europe, the Americas, and Asia. Most of the systems are installed for heating-domi-nated buildings in the global north. This paper also contains the research details pertaining to the last two decades about refrigerants and compressors for the development of GSHP. Finally, the feasibility study and the performance of the GSHP unit for different climatic conditions are reviewed and it is found that the technique is more feasible for cold and dry climatic con-ditions. This paper highlights the recent research findings and a potential gap in the above components for further research and development.

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Section: Energy and Exergy Analysismentioning

confidence: 99%

Fossil energy reduction for heating and cooling of buildings using shallow geothermal integrated energy systems – a comprehensive review

KUMAR

2023

Journal of Thermal Engineering

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“…For instance, Bansal et al [15] conducted a case study in the Indian city of Ajmer, where they tested a mathematical model and evaluated the performance of two soil air exchangers made of different materials. Similarly, Hadjadj et al [16] performed an experimental evaluation of the energy and exertion levels of the Horizontal Wind-Driven EAHE (HWAHE) system in El Oued, Algeria.…”

Section: Introductionmentioning

confidence: 99%

Numerical Assessment of EAHE Systems for Refreshment in Desert Algerian Regions

Nettari,

Kaddour,

Benbelgacem

et al. 2023

IJDNE

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As an example of green energy (geothermal energy), which has been the subject of advanced research in recent decades, the earth-to-air heat exchanger (EAHE) is the application of an air heat exchanger to soil temperatures, in which air circulates in tubes in thermal contact with the ground. The performance of the EAHE cooling system is evaluated at two separate sites (arid and semi-arid) in Algeria throughout this investigation. The impact of the EAHE system's entombed depth is then considered in this paper. According to our earlier research, the proper depth of the inhumed pipes is set at 3 m. The thermo-physical properties of the soil at several sites located in southern Algeria (Ghardaia: 32° 22′ 54′′ North, 3° 47′ 58′′ East) and Ouargla: 31° 55′ 53′′ North, 5° 24′ 24′′ East) are implemented by writing a program with the Scilab 6.0.2 software. Based on the results obtained, it can be concluded that the thermal range parameter is a more relevant and efficient parameter for evaluating the thermal performance of the EAHE (Earth-to-Air Heat Exchanger) system. Furthermore, the Ouargla region is a suitable location for the experimental realization of the EAHE system. The thermal amplitude interval (Trange) in Ouargla during the annual period is larger compared to Ghardaï a, with maximum values of 22.5℃ and 20℃ respectively. It is worth noting that the thermal comfort level (20-27℃) is more suitable for the Ouargla region rather than Ghardaï a. Additionally, there is an average difference of around 2.5℃ in the thermal amplitude between the two zones during the hot season, further highlighting the superiority of the Ouargla region.

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“…One major solution is to develop passive techniques using natural energy [4]. For the air-conditioning of buildings, solar and geothermal energy have captured great attention of researchers [5,6], and solar chimney (SC) and earth-to-air heat exchanger (EAHE) are two representative techniques for adopting solar energy and geothermal energy, respectively [7,8].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of diurnal and annual performance of coupled solar chimney with earth-to-air heat exchanger system

Long

Zhao

et al. 2022

Applied Thermal Engineering

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Energy and exergy analyses of a helicoidal water to air geothermal heat exchanger for arid regions

Cited by 14 publications

References 31 publications

Fossil energy reduction for heating and cooling of buildings using shallow geothermal integrated energy systems – a comprehensive review

Fossil energy reduction for heating and cooling of buildings using shallow geothermal integrated energy systems – a comprehensive review

Numerical Assessment of EAHE Systems for Refreshment in Desert Algerian Regions

Numerical simulation of diurnal and annual performance of coupled solar chimney with earth-to-air heat exchanger system

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