【摘要】 空气源热泵热水机组全年运行在制热模式,机组能效比受室外气象条件的影响较大,并且热水需求量通常还会随季节和用户用水习惯而有所差别,仅仅用名义工况下的机组运行能效比,难以准确客观地反映出其实际的节能效果。这里主要针对空气源热泵热水机组分布较为集中的长江沿线及以南地区,结合各地区气象条件及用户实际应用情况,引入全年综合运行工况来对空气源热泵热水机组的实际能效进行评定,确定更合理的评价标准。分析结果表明,采用全年综合运行工况作为参照工况点对空气源热泵热水机组进行综合能效评定更加客观严谨。更多还原

【Abstract】 Air source heat pump water heaters(ASHPWH) run in heating mode all year around.The EER of the units varies with the difference of local meteorological conditions and hot water demand of users,and thus the EER only under the nominal working conditions is difficult to accurately reflect the actual energy saving effect of the units.In this paper,a new evaluation criteria of ASHPWH energy efficiency on the basis of the annual integrated operating conditions is proposed,in which the weather conditions of different regions and actual application of users in the south of China are considered.The results show that the present energy efficiency assessment method of heat pump water heaters based on the annual integrated operating conditions is more reasonable.更多还原