基于动态规划的海水热泵机组组合节能评价

Energy-saving evaluation of seawater source heat pump units based on the dynamic programming

摘要:

为了准确评价海水热泵机组与普通冷水机组相比能够取得的节能效果,详细分析了影响机组能耗的各项因素,找出产生能耗计算不确定性的原因,进而构造出基于动态规划原理的机组最优动态负荷分配策略的数学模型与求解方法,根据所构建的模型,以某办公建筑的2台机组组合的情况为例,得到了以机组供冷季能耗最小为原则所确定的最优机组组合及其供冷季最小能耗,并得出在本例中海水源热泵机组相对于普通的水冷机组可以取得16.3%的节能效果.所提出的海水热泵机组节能评价方法,是在制冷机组组合节能优选的基础上进行的,避免了机组组合选择的主观性所带来的计算偏差.

Abstract:

In order to evaluate the energy-saving effect of seawater source heat pump units over conventional water cooled chillers precisely,various factors that affect the energy consumption of chillers are analyzed.Then a mathematical model of optimal chiller loading was set up on the basis of dynamic programming theory.Through a case study of an office building,the steps of optimal selection of heat pumps or chillers with different capacities are brought out based on the principle that the total energy consumption throughout the cooling season is minimized.And the energy-saving of the seawater source heat pump units in the case project is calculated to be 16.3%.The energy-saving evaluation method of seawater source heat pump units provided in the paper can minimize the calculation error as it is based on the optimal selection of different heat pumps or chillers.