Achievement of Geothermal Energy Using Ground Heat Exchanger in Ma'En

Al-Dabbas, Mohammed Awwad

doi:10.1260/0958-305x.22.8.1029

Cited by 5 publications

(4 citation statements)

References 2 publications

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“…Thermal water in north and middle Jordan has been used directly as therapeutic water, e.g. Zara, Zarqa-Ma'in, Afra and North Shunah hot springs of an annual use about 1540 GWh [5] [6]. Other utilizations including bathing and irrigation had earlier been used.…”

Section: Introductionmentioning

confidence: 99%

Thermo-Physical and Mechanical Properties of Al Hashimiyya Basaltic Rocks, Jordan

Al-Zyoud¹

2019

IJG

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Geothermal exploration in northern Jordan is in juvenile phase. North eastern basaltic desert is expected to host, with other rock formations, a shallow geothermal field. For efficient geothermal potential evaluation, a complete understanding of thermo-physical properties of deep reservoir rocks is of utmost importance. Due to the complex technical thermo-physical evaluations of basalts in depth, surficial basalts extending to the west were evaluated. Accordingly, six basaltic sub-flows from Al Hashimiyya were examined into their thermo-physical and mechanical properties. The flows represent the western extinction of large olivine basalt eruption. Different properties were evaluated for oven dried samples: thermal conductivity, permeability, porosity, density and specific heat capacity. In addition, basalts mechanical properties were examined: compressional wave velocity, unconfined compressive strength, indirect tensile strength and point load tests. The results were correlated in proportional patterns. They indicated that thermal conductivity of the studied basalts is dependent on porosity and permeability in parallel with mineral composition. It's found that mechanical properties are controlled by porosity and permeability, too. The studied basalt properties exhibit slight deviation from the continental basalts thermo-physical and mechanical properties reported in the region. Thermal conductivity ranges between 1.89 and 1.32 W•m −1 •K −1 , whereas the porosity and permeability averages at 10.64% and 9.75899E−15 m 2 , respectively. Additionally, unconfined compressive strength averages at 104.9 Mpa and it's almost 20 times higher than indirect tensile strength which ranges from 8.73 to 2.21 Mpa. As the samples were tested under laboratory conditions, in situ conditions will not be reflected by such values. At greater depth, temperature, pressure and hydrothermal activities will certainly affect rock properties. Micro fractures, whether it will be filled or not, will affect basalts properties, too. The results of this work will be used to develop a comprehensive thermo-physico-mechanical How to cite this paper: Al-Zyoud, S. (2019) Thermo-Physical and Mechanical Properties of Al Hashimiyya Basaltic Rocks, Jordan.

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Section: Introductionmentioning

confidence: 99%

Thermo-Physical and Mechanical Properties of Al Hashimiyya Basaltic Rocks, Jordan

Al-Zyoud¹

2019

IJG

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“…Another less common hypothesis had been discussed for heat source explanation in Jordan: Open Journal of Geology 4) Radioactive heat production due to U238 disintegration series in Lower Sandstone aquifer [31] with [23]. Several geological settings are affecting this hypothesis; rock types and genesis, tectonic activities, mineral composition… and other controllers would limit this hypothesis acceptance.…”

Section: Heat Sourcementioning

confidence: 99%

Shallow Geothermal Energy Resources for Future Utilization in Jordan

Al-Zyoud¹

2019

OJG

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Geothermal energy is considered as one of the new-green-free renewable energy resources that Jordan is blessed with. Geothermal energy installation in Jordan will have a positive impact on the economy, it will reduce the national energy bill. Shallow geothermal systems are likely to be promising for future utilization in the country. Therefore, further evaluations of geothermal energy resources are highly recommended. Distributed efforts have been done to evaluate the potential of geothermal resources utilization in Jordan. A comprehensive geothermal resources assessment has not yet been conducted in the country. The present work evaluates the potential of four geothermal fields in Jordan. Geothermal gradient map shows that Jordan has two high geothermal gradient fields with higher than 4.5˚C/100m and other two moderate geothermal gradient fields with a range of 3.5-4.5˚C/100m. It has been found that the water temperature in some fields reaches about 68.5˚C. Five possible heat source hypotheses were discussed. Geothermal potential in Jordan is expected to evolve as a result of NS trending Dead Sea Rift activities. With the presence of faults parallel with geothermal gradient anomalies in each evaluated field, this hypothesis becomes the most effective to explain the heat source. It is of utmost importance to consider the geothermal energy potential for future utilization in Jordan. An integrated geothermal potential map will be very helpful for energy policies and future strategies planning in the country.

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“…Therefore, many researchers have focused on the performance enhancement of GHP and SWSHP systems [1][2][3][4][5][6]. Both GHP and SWSHP are known to be energy efficient, and more frequently used as the source of heating and cooling system.…”

Section: Introductionmentioning

confidence: 99%

“…The purposes of this research are (1) to provide U value of smooth tube (32A HDPE tube) for the design of SWHE system, (2) to investigate the effect of grooved tube on increase in U value, (3) to investigate whether the use of grooved HDPE tube (with fin shape) in SWHE system brings fin effect or not, and (4) to investigate the economic benefits with grooved HDPE tube.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer on grooved high density poly ethylene tube for surface water source heat pump

Jung

Chung

et al. 2014

Therm sci

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High density polyethylene (HDPE) tube has been successfully utilized in surface water source heat pump (SWSHP) system as a surface water heat exchanger. Since the heat transfer coefficient (U value) of the HDPE tube directly affects performance and energy efficiency of SWSHP, this research aims to increase U value of HDPE tube by grooving external surface of conventional 32A HDPE tube to reduce cross-sectional volume. The final shape of grooved HDPE tube is similar to that of fin. In order to verify the performance of grooved HDPE tube, the U values of grooved and smooth tube were compared experimentally. According to the results, U value of grooved tube showed approximately 21.5% increase with natural convection and 23.5% with forced convection system than U values obtained from smooth tube. The reason for such increase in U value was found to be the reduction in cross-sectional volume of the HDPE tube.

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Achievement of Geothermal Energy Using Ground Heat Exchanger in Ma'En

Cited by 5 publications

References 2 publications

Thermo-Physical and Mechanical Properties of Al Hashimiyya Basaltic Rocks, Jordan

Thermo-Physical and Mechanical Properties of Al Hashimiyya Basaltic Rocks, Jordan

Shallow Geothermal Energy Resources for Future Utilization in Jordan

Heat transfer on grooved high density poly ethylene tube for surface water source heat pump

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