Optimal Design and Operation Simulation Analysis ofbsorption Chill Water Storage Air Condition System riven by Waste Heat
Date Issued
2009
Date
2009
Author(s)
Sung, Cheng-An
Abstract
Under the threat of global warming and rising energy costs, to limit recourses spending and to reduce CO2 release are two tasks engineers have long been aiming for. The use of absorption refrigerators which operate by utilizing the waste heat factories produce can not only apply the waste heat efficiently but also achieve ‘saving energy’, moreover, it provides additional cold water for other usages and air conditioning for office buildings.n this article, an optimal design is proposed to minimize the sum cost of initial cost and the operation energy costs in ten years to meet both economic and energy requirements. Various power consumption calculation methods of the main devices are included, such as the absorption refrigerator, waste heat exchanger, fan, pump and cooling tower to predict the performance of this equipment under different operating conditions. In addition, FLUENT is used to calculate the inner temperature distribution of the chilled water storage tank and its storage discharge performance. After the integration of above research, an overall system energy process calculation method is present; it allows calculating total power consumption of the system and all operating conditions of the devices in different energy control strategies. Taking the considerations of atmospheric temperature and cooling load, this method is to compete and to find out the best absorption refrigeration water storage system strategy in order to operate an energy efficiency assessment. Take the example of the energy efficiency assessment in this article, if the entry control cool water is 32oC and the hot water entry temperature is 105oC, to compare it with it''s nominal state it can efficiently lower the energy consumption approximately 6.7% during twenty four hours.
Subjects
waste heat
performance simulation
absorption chiller
SDGs
Type
thesis
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