先进绝热压缩空气储能的冷热电输出特性研究

Study of the Cooling,Heating and Power Output Characteristics of an Advanced Adiabatic Compressed Air Energy Storage

以改变储热器中热量的分配为基础,建立了先进绝热压缩空气储能(Advanced Adiabatic Compressed Air EnergyStorage,简称AA-CAES)系统的冷热电联供模型。推导了系统的主要参数表达式,并以某建筑冷热电负荷的变化情况为例,对比了AA-CAES系统的供电模型与冷热电联供模型的能量输出特性。结果表明,相比供电模型:冷热电联供模型有最大发电量时,同时可最大输出0.62单位的制冷量和1.1单位的供热量(最大发电量为单位1);通过调节储热器的热量分配,可改变冷热电联供模型冷热电的输出比例,对负荷变动的应对性更好。

With a change in the heat distribution in a heat storage device serving as a basis,established was a cooling,heating and power cogeneration model for an advanced adiabatic compressed air energy storage system and derived was the expression of the main parameters of the system.With changes of the cooling,heating and power load of a building serving as an example,the authors compared the energy output characteristics of the power supply model of the AA-CAES system with those of the cooling,heating and power cogeneration model.The results calculated by using the models show that compared with the power supply model,when the cooling,heating and power cogeneration model reaches its maximum power generation capacity,it can simultaneously provide a maximal output of cooling energy quantity of 0.62 units and heat energy quantity of 1.1 units(when the maximum power generation capacity is regarded as 1 unit).To regulate the heat distribution in the heat storage device can change the proportions of the cooling,heating and power output of the cooling,heating and power cogeneration model,thus better making the adaptability to load variations.