The Optimization and Energy Analysis of Primary Air Handler Cooling System for High-Voltage Electrical Cables in Underground Tunnels
Date Issued
2012
Date
2012
Author(s)
Zheng, Jing-Han
Abstract
This research predicts outlet pipe’s and the underground tunnel’s temperature distribution in addition to testing the water temperature, wind velocity and outside air temperature of the inlet. Furthermore, developing the constraints, energy analysis and baseline of cooling system for the designer play an important role in this study. For improving chiller’s COP or replacing chiller, proposing the innovative concepts of geothermal energy combines with cooling system and borehole heat exchanger. This study investigates the temperature distribution through mathematical analysis and program simulation.
The simulation results are as follows. With high outside air temperature, high wind velocity and low water temperature, the energy consumption of is the hugest than the others. With low outside air temperature, low wind velocity and high water temperature, the energy consumption of is the lowest than the other. As the wind velocity decreased , outside temperature decreased and water temperature increased, the energy consumption are also decreased. However, the underground tunnel’s temperature is increased when increasing water temperature and decreasing wind velocity. The purpose of this research is to obtain the most effective way of saving energy under the constraints condition.
Subjects
PAH
Underground tunnels
Geothermal energy
SDGs
Type
thesis
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