冷热电三联供系统关键设备与配置方案优化

Key Equipment of Natural Gas-fired CCHP System and Comparison between Configuration Schemes

介绍天然气冷热电三联供系统(以下简称联供系统)关键设备。以某办公建筑为研究对象,分析建筑冬季、夏季典型日逐时冷热电负荷。以联供系统寿命周期成本最小作为目标,建立联供系统优化模型,对方案1(燃气轮机发电机组+烟气型溴化锂吸收式热泵机组+燃气锅炉+电制冷机组)、方案2(燃气内燃机发电机组+烟气型溴化锂吸收式热泵机组+燃气锅炉+电制冷机组)两种联供系统的设备规格和运行策略进行优化。方案1的寿命周期成本最小。

The key equipment of natural gas- fired combined cooling, heating and power （CCHP） system （hereinafter referred to as trigeneration system） is introduced. Taking an office building as the research object, the hourly cooling, heating and power loads in a typical day in winter and summer are analyzed. The optimized model of the trigeneration system is constructed using the minimum life cycle cost as the objective. The equipment specification and operation strategy of the scheme 1 using gas turbine generator ＋ flue gas type lithium bromide absorption heat pump ＋ gas boiler ＋ electric refrigeration unit and of the scheme 2 using gas engine generator ＋ flue gas type lithium bromide absorption heat pump ＋ gas boiler ＋ electric refrigeration unit are compared and analyzed. The scheme 1 has the minimum life cycle cost.