The proportion of natural gas in consumption of energy is constantly rising . gas turbine and engine cogeneration is one of the rational ways in utilization of natural gas . using index system evaluating thermodynamic performance of energy utilization systems on the basis of electricity , the allocation models of the fuel consumption for the gas turbine and engine chp plant were deduced 本文根据以电量为基准的热力性能评价思想，研究燃机热电联产煤耗分摊问题，并给出了燃机燃气蒸汽联合循环热电联产、燃机简单循环热电联产系统的电、热两种产品生产的煤耗分摊模型。
Steam turbine thermal performance test is one of the most important parts to evaluate the economic performance of a power plant unit . since the structures of the steam turbine is complex and variational , the procedure of steam turbine thermal performance test is also much complex . steam turbine thermal performance test consists of data collection and performance calculation , and the two procedures must be dealt with under a standard rule 汽轮机热力性能试验主要包括两个过程,数据采集和性能计算,为了得到真实可靠的分析结果,这两方面的工作必须根据试验规程进行, ansi / asmeptc6汽轮机性能试验规程是目前国际上最高精度等级的热耗率试验规程,在我国被广泛用在新投产的大型汽轮机机组或老机组改造的经济性能评价之中。
Specially , the rotating ramjet with shaft power output was discussed . result showed that the thermodynamic cycle of the rotating ramjet is a breton cycle including two anti - cycle processes . because the advantage on thermodynamic performances and structure , the rotating ramjet will has wide prospective application in aircraft and powers system in heavy trucks , military facilities , tanks , warship as well as power plant 着重讨论了轴功输出方案的旋转冲压发动机,初步分析表明,旋转冲压发动机的热力循环是加进了两个反循环的布雷顿循环,该发动机在热力性能和结构方面与燃气轮机相比有独特优点,有望在现代和未来各类飞行器及各类重型车辆、战略设施、坦克、舰船动力、电力等能源动力领域获得广泛应用。
In order to get the theoretical base of studying and designing electric heating component of electric heating boiler , this paper studies a new - style changing - characteristic material as the heating component of electric heating boiler , analyss the various factors having effect on its thermal performances and puts forward optimum design 本文对用一种新型改性材料作为电热锅炉的加热元件进行了研究,并对影响该电热元件热力性能的各类因素作了较详尽的分析和探讨,提出了优化设计方案,旨在为电热锅炉电热元件的研究和设计提供理论依据。
This paper analyses current situation of chp and situation of development , use evaluating energy utilization - - based on electricity comparing with state calculated method - - based on heat , calculates the operating data of baotou second thermal power plant heat supply system ， extends the study of heat supply performance to heat net and heat consumer , synthetically analyses heat load characteristic 、 pipe net property and heat supply distance witch effect heat supply cost . the paper studies the thermal power performance of thermal power plant total energy system , discuss heat supply cost which effect the development of chp 本文对热电联产的现状及发展情况进行分析，采用能源利用系统性能评价指标体系及其评价指标? ?电量法与国家目前采用的法定计量方法? ?热量法进行比较，通过对内蒙古包头第二热电厂供热热源系统及供热热网系统的热电联产运行数据进行分析计算，将供热过程的热力性能研究延伸至热网和热用户，分析用户终端的能源利用情况，针对内蒙古地区主力机组和地区条件，综合分析了热负荷特性、管网性能及供热距离对供热成本的影响，研究了热电厂总能系统的热力性能，对困扰热电联产的供热成本进行了探讨。
Supported by the national natural science foundation of china ( study on heat transfer characteristics of downhole coaxial heat exchanger in convection geothermal reservoir ) and tianjin development and plan program of science and technology ( study of ecologic architectural energy system ) , the thermal performance exploiting earth energy for heating and cooling is studied in this paper ， and its main purpose is to offer reference for increasing the percent of renewable energy in ecologic architectural energy 本文在国家自然科学基金（井下换热器周围对流型地温地层内的传热特征研究）和天津市科技发展计划项目（生态能源建筑体系研究）的资助下，重点研究了地表热能（或称地温能）高效利用中的传热与热力性能问题，为可再生能源在生态能源建筑中发挥更大的作用提供依据。
