冷热电三联供系统研究(2):冷热电三联供系统是否应该“以热定电”
Research of combined cooling heating and power systems (2): Is it needed to determine power by heating load in the system
摘要：
指出了热电联产（CHP）和冷热电三联供（CCHP）的不同，认为在规划和设计CCHP系统时不能照搬CHP的标准和规定。分析了“以热定电”设计方法的各种制约因素，认为这些因素大大限制了“以热定电”方法在燃气CCHP系统中的应用。通过燃气CCHP工程实例，比较了“以热定电”、“以电定热”和优化法的各项经济参数。结果表明，“以热定电”并非是燃气CCHP系统中首选的设计方法。分析了各种热泵在燃气CCHP系统中的应用前景，指出由于情况复杂，热泵并非是提高燃气CCHP综合能源效率的一种简单有效手段，需要因地制宜地区别对待，合理使用。
Abstract：
Points out the difference between CHP and CCHP. Thinks that the standards and regulations for the CHP system can not be copied in CCHP system planning and designing. Analyses varieties of restrictive factors while adopting the design method of determining power by heating load. Deems that those factors greatly limit the application of the method to gas CCHP system. With a project case, compares the economical parameters of determining power by heating load, determining heating load by power and an optimization method in the gas CCHP system. The result shows that the determining power by heating load is not a preferred design method in the gas CCHP system. Analyses the application prospect of several kinds of heat pumps in the gas CCHP system. Brings forward that adopting heat pumps is not a kind of simple and effective method to improve the comprehensive energy efficiency of the gas CCHP system owing to complicated situations. The heat pumps should reasonably be adopted according to different conditions.
Keywords:combinedcoolingheatingandpower,combinedheatingandpower,determiningpowerbyheatingload,determiningheatingloadbypower,economicalanalysis,heatpump