Numerical Study and Experimental Validation of the Thermal Performance of a U-Tube Borehole Heat Exchanger for a Geothermal De-Icing System

IFCEE 2021 ◽  
2021 ◽  
Author(s):  
Omid Habibzadeh-Bigdarvish ◽  
Teng Li ◽  
Gang Lei ◽  
Anand J. Puppala ◽  
Xinbao Yu
2009 ◽  
Vol 41 (12) ◽  
pp. 1368-1373 ◽  
Author(s):  
Huajun Wang ◽  
Chengying Qi ◽  
Hongpu Du ◽  
Jihao Gu

2015 ◽  
Author(s):  
Guillermo Soriano ◽  
Diego Siguenza

An analysis of thermal performance of a vertical Borehole Heat Exchanger (BHE) from a close loop Ground Source Heat Pump (GSHP) located in Guayaquil-Ecuador is presented. The project aims to assess the influence of using novels heat transfer fluids such as nanofluids, slurries with microencapsulated phase change materials and a mixture of both. The BHEs sensitive evaluation is performed by a mathematical model in a finite element analysis by using computational tools; where, the piping array is studied in one dimension scenario meanwhile its surroundings grout and ground volumes are presented as a three dimensional scheme. Therefore, an optimized model design can be achieved which would allow to study the feasibility of GSHP in buildings and industries in Guayaquil-Ecuador.


Author(s):  
Fadi A. Ghaith ◽  
Ahmed S. Izhar

This paper aims to enhance the thermal performance of an industrial shell-and-tube heat exchanger utilized for the purpose of cooling raw natural gas by means of mixture of Sales gas. The main objective of this work is to provide an optimum and reliable thermal design of a single-shelled finned tubes heat exchanger to replace the existing two- shell and tube heat exchanger due to the space limitations in the plant. A comprehensive thermal model was developed using the effectiveness-NTU method. The shell-side and tube-side overall heat transfer coefficient were determined using Bell-Delaware method and Dittus-Boelter correlation, respectively. The obtained results showed that the required area to provide a thermal duty of 1.4 MW is about 1132 m2 with tube-side and shell-side heat transfer coefficients of 950 W/m2K and 495 W/m2K, respectively. In order to verify the obtained results generated from the mathematical model, a numerical study was carried out using HTRI software which showed a good match in terms of the heat transfer area and the tube-side heat transfer coefficient.


Geothermics ◽  
2015 ◽  
Vol 57 ◽  
pp. 157-172 ◽  
Author(s):  
Morgan Le Lous ◽  
François Larroque ◽  
Alain Dupuy ◽  
Adeline Moignard

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