自1973年以来，能源价格的急剧上涨重新激发了人们对如何更有效地利用能源的一些古老但仍然有效的想法的兴趣。ice makerheat泵是现有节能设备的一个典型例子，可以用来为空间供暖和水供暖提供热量。根据能源政策或经济考虑，在供暖循环中，热泵运行期间形成的副产品冰可以丢弃、出售或储存以供日后使用。在夏季，当收集的冰被储存并用于冷却建筑物时，制冰机热泵系统的整体能源效率最高。 当建筑物的季节热负荷和冷负荷以这种方式平衡时，就会产生年度循环能源系统（ACES）。本文从节能和投资回收率两方面对制冰机泵系统的不同运行模式进行了研究。特别关注的是那些不仅根据当前能源价格水平提供合理回报率的系统，而且随着经济条件和能源政策的变化，这些系统还可以灵活地实现更大的能源和成本节约。随着更高的能源成本和新的利用率结构的出现，目前经济性不高的制冰机热泵的应用可能会变得更具吸引力。 引文:研讨会，ASHRAE交易，第83卷，第一部分，伊利诺伊州芝加哥

The dramatic increase in the price of energy since 1973 has revived interest in a number ofold but still valid ideas of how to utilize energy in a more efficient manner. The ice-makerheat pump is a prime example of already-existing, energy efficient equipment that could beused to provide heat for space heating and water heating. The ice that is formed as a byproductduring operation of the heat pump in the heating cycle can be discarded, sold, orstored for later use, as dictated by energy policy considerations or economics.The greatest overall energy efficiency of the ice-maker heat pump system is realized whenthe harvested ice is stored and used to cool the building in the summer months. When theseasonal heating and cooling loads of a building are balanced in this manner, an Annual CycleEnergy System (ACES) results. In this paper, different modes of operation of an ice-makerheat pump system are examined with respect both to their energy savings and to their rate ofreturn on investment. Particular attention is given to those systems which not only providea reasonable rate of return based on current energy price levels, but which also offerflexibility in attaining even greater energy and cost savings as economic conditions andenergy policies change. Applications of the ice-maker heat pump that are today only marginallyeconomic may become much more attractive as higher energy costs and new utility rate structurescome on the scene.