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根据创建的太阳能-垂直埋管式土壤源热泵供热水供暖联供系统,针对榆林地区某高速公路服务区建筑,以费用年值和系统COP为评价指标,利用TRNSYS软件模拟分析,对比研究了三种供热水供暖方案的系统经济性和能效,并讨论了电价对这三种方案经济性的影响。结果表明:1)水平分供式、垂直分供式和垂直联供式三种供热水供暖方案均可行;2)初投资:水平分供式<垂直分供式<垂直联供式,年运行费用:水平分供式>垂直分供式>垂直联供式,费用年值:水平分供式>垂直分供式>垂直联供式;3)系统COP:水平分供式<垂直分供式<垂直联供式;4)综合分析可知,联供方案优于垂直分供方案,垂直分供方案优于水平分供方案,且电价越高(高于0.3元/kWh时),优势越明显。
According to the created solar-vertical ground source heat pump heating water supply system, aiming at the highway service area construction in Yulin area, taking the annual cost and system COP as the evaluation indexes, using the TRNSYS software simulation analysis, comparatively studied The economic and energy efficiency of three hot-water supply schemes are discussed, and the impact of electricity prices on the economy of these three schemes is discussed. The results show that: 1) The horizontal sub-supply, vertical sub-supply and vertical supply three kinds of hot water heating schemes are feasible; 2) The initial investment: horizontal sub-supply vertical sub-type supply> vertical co-fed, the cost of annual value: horizontal sub-type supply> vertical sub-type supply> vertical co-fed; 3) COP: horizontal sub-type (4) According to the comprehensive analysis, we can conclude that the joint program is better than the vertical program, the vertical program is better than the horizontal program, and the higher the price is (higher than 0.3 Yuan / kWh) obvious.