Utilization of Geothermal Energy by U-Tube Heat Exchanger

2002 ◽  
Vol 2002 (0) ◽  
pp. 25-26
Author(s):  
Makoto TAGO ◽  
Koji MORITA ◽  
Masahiro SUGAWARA ◽  
Tadashi FUJITA ◽  
Shingo MAWATARI ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Geothermal Energy ◽  
Tube Heat Exchanger

scholarly journals Effect of pile and heat exchanger properties on total heat extraction of an energy pile - A numerical study

2020 ◽  
Vol 205 ◽  
pp. 05024
Author(s):  
Mithun Mandal ◽  
Ramakrishna Bag
Keyword(s):  
Heat Exchanger ◽  
Geothermal Energy ◽  
3D Model ◽  
Total Heat ◽  
Heat Extraction ◽  
Soil Layers ◽  
Energy Pile ◽  
Tube Heat Exchanger ◽  
Concrete Pile ◽  
Inner Diameter

Geothermal energy is one of the potential energy resources to meet future energy demand keeping environmental pollution under control. This paper presents the use of geothermal energy for space heating from energy pile. An energy pile with a single U tube heat exchanger of polyethylene (PE) pipe was modeled in this study. The effect of pile and heat exchanger properties on the total heat extraction was studied by the finite element analysis using COMSOL Multiphysics. The 3D model was developed and validated based on the literature reported results of an experimental thermal performance of a borehole equipped with a single and double U tube heat exchanger. Tetrahedral elements were considered for simulation of a 3D model. The model of a single energy pile of certain dimensions with different soil layers was considered, each soil layers were associated with different temperature. The effect of various parameters such as the length of concrete pile, the diameter of concrete pile, the thickness of U pipe, the inner diameter of U pipe and velocity of fluid inside the U pipe on amount of heat extraction was studied for an energy pile equipped with a single U tube heat exchanger. It was observed that the most influential parameters in increasing the outlet temperature of the heat exchanger loop are the diameter of the concrete pile, the inner diameter of U pipe and the velocity of fluid inside the U pipe.

Geothermal Energy Extraction by Double U-Tube Heat Exchanger

2004 ◽  
Vol 2004.40 (0) ◽  
pp. 171-172
Author(s):  
Makoto TAGO ◽  
Koji MORITA ◽  
Masahiro SUGAWARA ◽  
Tadashi FUJITA ◽  
Manabu FUKUHARA
Keyword(s):  
Heat Exchanger ◽  
Geothermal Energy ◽  
Energy Extraction ◽  
Tube Heat Exchanger

APPLICATION OF ENTROPY GENERATION MINIMIZATION FOR OPTIMIZING THE GEOMETRY OF A DOUBLE-TUBE HEAT EXCHANGER

2017 ◽  
Vol 48 (11) ◽  
pp. 955-968
Author(s):  
Rafal Laskowski ◽  
Pawel Tomczak ◽  
Maciej Jaworski
Keyword(s):  
Heat Exchanger ◽  
Entropy Generation ◽  
Tube Heat Exchanger ◽  
Entropy Generation Minimization

A Shell-and-Tube Heat Exchanger Optimization by Differential Evolution

2016 ◽  
Author(s):  
Leonardo Cavalheiro Martinez ◽  
Leonardo Cavalheiro Martinez ◽  
Viviana Mariani ◽  
Marcos Batistella Lopes
Keyword(s):  
Heat Exchanger ◽  
Differential Evolution ◽  
Tube Heat Exchanger ◽  
Shell And Tube

Case study of the metamodels of a shell-and-tube heat exchanger

2020 ◽  
Author(s):  
Wagner Henrique Saldanha ◽  
Felipe Raul Ponce Arrieta
Keyword(s):  
Heat Exchanger ◽  
Tube Heat Exchanger ◽  
Shell And Tube

Experimental Investigation of Heat Transfer Enhancement by Using Different Number of Fins in Circular Tube

2018 ◽  
Vol 6 (3) ◽  
pp. 1-12
Author(s):  
Kamil Abdul Hussien
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Cold Water ◽  
Finned Tube ◽  
Hot Water ◽  
Copper Tube ◽  
Smooth Tube ◽  
Tube Heat Exchanger ◽  
Mass Flow Rates ◽  
Flow Heat

Abstract-The present work investigates the enhancement of heat transfer by using different number of circular fins (8, 10, 12, 16, and 20) in double tube counter flow heat exchanger experimentally. The fins are made of copper with dimensions 66 mm OD, 22 mm ID and 1 mm thickness. Each fin has three of 14 mm diameter perforations located at 120o from each to another. The fins are fixed on a straight smooth copper tube of 1 m length, 19.9 mm ID and 22.2 mm OD. The tube is inserted inside the insulated PVC tube of 100 mm ID. The cold water is pumped around the finned copper tube, inside the PVC, at mass flow rates range (0.01019 - 0.0219) kg/s. The Reynold's number of hot water ranges (640 - 1921). The experiment results are obtained using six double tube heat exchanger (1 smooth tube and the other 5 are finned one). The results, illustrated that the heat transfer coefficient proportionally with the number of fin. The results also showed that the enhancement ratio of heat transfer for finned tube is higher than for smooth tube with (9.2, 10.2, 11.1, 12.1 13.1) times for number of fins (8, 10, 12, 16 and 20) respectively.

Design and Fabrication of Trio Tube Heat Exchanger Experimental Setup

2020 ◽  
Author(s):  
Devendra Yadav ◽  
Akhilesh Kushwaha ◽  
Anuj Mishra
Keyword(s):  
Heat Exchanger ◽  
Experimental Setup ◽  
Tube Heat Exchanger
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