论文部分内容阅读
文章针对区域多能互补系统协调供应问题开展了不同供能方案的对比分析。首先,提出了燃气机组冷热电联供(combined cooling heating and power,CCHP)系统和环境源热泵系统2种分布式供能方案,制定了相应的运行策略,分析了不同供能方案的安全性和环保性;其次,建立了概率全寿命周期成本(life cycle cost,LCC)模型,给出了燃气机组冷热电联供系统、环境源热泵系统和传统供能系统3种供能方案的经济性计算方法;最后,以北方某市的商业区域为例,评估3种供能方案经济性,并通过灵敏度分析得到了天然气价和电价对不同供能方案经济性的影响。结果表明随着天然气价和电价的变化,经济性最好的方案发生变化,因此实际工程中应结合规划区域的具体内容和当地能源价格,合理选择供能方式。
In this paper, the contrastive analysis of different energy supply schemes is carried out for the coordinated supply of regional multi-energy complementary systems. First of all, two kinds of distributed energy supply schemes of combined cooling heating and power (CCHP) system and environment-source heat pump system are put forward, corresponding operation strategies are formulated, and the safety of different energy supply schemes is analyzed And environmental protection. Secondly, a model of life cycle cost (LCC) is established, and the economic benefits of three kinds of energy supply schemes for gas-fired cogeneration system, environmental heat pump system and traditional energy supply system are given Finally, taking the commercial area of a certain city in the north as an example, the economy of the three kinds of energy supply schemes is evaluated and the impact of natural gas price and electricity price on the economy of different energy supply solutions is obtained through sensitivity analysis. The results show that with the change of natural gas price and electricity price, the best economic scheme has changed. Therefore, the actual project should be based on the specific content of the planned area and the local energy price, and reasonably choose the mode of energy supply.