电能替代供冷供热技术与燃气分布式能源的技术经济性对比分析

Technical and Economical Comparison of Electric Energy Alternative Cooling and Heating Technologies and Gas Distribution Energy

选取电能替代供冷、供热技术与燃气分布式能源进行对比分析。首先分别对电能替代供热供冷技术比较,遴选出经济效益较好的电能替代技术进行组合,然后与燃气分布式能源同时供冷供热进行比较,获取电能替代供冷供热较好的技术方案,排序为蓄冷蓄热(热泵)、水源热泵、空气源热泵、地源热泵、蓄冷热泵+电采暖。最后,以燃气分布式能源的投资回收年限为约束,对比分析天然气价格对应的临界电价,获取不同电价政策下的利润空间和利润比例。燃气分布式能源适用于具有一定规模,冷热需求较大、燃气管道已铺设的用户,电能替代供冷供热技术更具有灵活性,可适应各种规模的用户,但对于电力供应稳定性要求较高。

A contrastive analysis of the electric energy alternative cooling and heating technologies and gas distribution energy is given.First of all,to select the electric energy alternative cooling and heating technologies with better economical efficiency,make the contrastive analysis of heating and cooling technologies respectively,and then the better combination of the electric energy alternative cooling and heating technical proposal were got by comparing with the gas distribution energy.The comprehensive ranking is storage heat and cold(heat pump),water source heat pump,air source heat pump,ground source heat pump,storage cool pump+electric heating.Finally,based on the investment re-covery period of gas distribution energy,the profit margins and profit ratio under different electricity price policies were obtained by comparing the critical electricity price corresponding to the price of natural gas.Gas-distributed energy is suitable for users with a certain scale,greater demand of heat and cold,and the gas pipeline has been laid the Electric energy alternative cooling and heating technologies are more flexible which could adapt to all sizes of users,in addition to demand for higher different users,but it has higher demand of requirement of power supply.