In cold regions,using seawater source heat pumps for winter heating requires adding antifreeze to the intermediate water to prevent lower seawater temperatures.However,due to the differences in the physicochemical properties of antifreeze,this can affect the energy consumption of the system's transportation.By establishing a mathematical calculation model for the energy consumption of system transportation and the physical parameters of antifreeze,and using the system heating capacity as a constraint,the impact of 30％glycerol solution,20％ethylene glycol solution,13.6％sodium chloride solution,and 14.7％calcium chloride solution on the energy consumption of system transportation is calculated and analyzed.The research results show that when the heating capacity of the system is constant,compared with water,the energy consumption of glycerol solution transportation increases by 35％～40％,while the energy consumption of ethylene glycol solution,sodium chloride solution,and calcium chloride solution transportation is reduced to a certain extent.It can be concluded that some antifreeze solutions have the effect of reducing pipeline resistance.Taking a seawater source heat pump system in Qingdao as an example,the energy consumption of the water pump after adding antifreeze is tracked and analyzed.
关键词
海水/海水源热泵/防冻液/输送能耗/系统减阻
Key words
seawater/seawater source heat pump/antifreeze solution/transportation energy consumption/system drag reduction
维普
万方数据