现代社会生产与生活离不开电和热。长久以来,电和热经常是分别生产和供应的,人们习惯于这种热电分供的模式就象认为厨房缺少不了锅和灶一样。这种模式缺点是在发电过程中丢失了相当多的冷端能量,同时造成对环境的热污染;用户自备小锅炉效率较低,同样浪费了能源和加大了环境污染。 The production and life of modern society can not do without electricity and heat. For a long time, electricity and heat were often produced and supplied separately, and people became accustomed to this pattern of heat and electricity supply just as they considered the kitchen lacking pots and stoves. The disadvantage of this model is that a considerable amount of cold-end energy is lost during power generation, while causing thermal pollution to the environment; user-owned small boilers are less efficient, wasting energy and increasing environmental pollution.