Field Study Of An Introduction Effect Of Distributed Energy System In Kitakyushu Science And Research Park

在本研究中，我们首先调查了日本的分布式能源(DER)情况，并与其他国家进行了比较。然后，通过对日美两国建筑能源需求、燃气电价和电价对DER系统安装的影响的比较研究，建立建筑能源需求、燃气电价和技术的数据库。在实地研究中，我们选择北九州科学研究园(KSRP)的能源中心作为案例，利用记录的数据对燃料电池和燃气发动机夏季发电和放热利用的效率进行了分析。研究结果概括如下：1)虽然燃气发动机和燃料电池的发电效率略低于标准指标值，但在整个研究期间几乎是恒定的。2)收集的热能低于指定值。用于冷却和热水的热释放利用率低于预期。3)在对系统进行整体评价时，系统的废弃热能很大，并针对DER的引入对节能、环境、经济等方面的影响提出了评价工具。利用这些评价工具，对KSRP的能量和二氧化碳排放进行了全面评价。在此基础上，分析了热电联产系统在小型住宅综合体中的可行性，并通过讨论住宅综合体的规模、运行方式等因素对热电联产系统的优化设计进行了分析。最后，模拟了DER的引入对局部环境的影响。

In this study, we firstly have investigated the situation of distributed energy resource (DER)in Japan and have a comparison with the other countries. Then, we try to establish the databases for building energy demand, tariffs of gas and electricity, and technology through a comparison study between Japan and the U.S. covering the policy, technology and the utility tariffs effects on DER systems installations.In the field study, we selected the energy center in Kitakyushu Science and Research Park(KSRP) as a case study and have carried out an analysis on the efficiency of the power generation and heat release utilization of the fuel cell and gas engine in summer by using recorded data. The results can be summarized as follows ; 1)Although the power generation efficiencies of the gas engine and fuel cell are slightly lower than the standard designated value, they are almost constant throughout the period of study. 2)The collected heat energy is lower than the designated value. The heat release utilization, which is used for cooling and hot water, is lower than expected 3)The discarded heat energy of the system is very big in this investigation when evaluating the system as a whole.The evaluation tools have been presented for energy conversation, environment, economics and the other effects due to the introduction of DER. By using those evaluation tools, a total evaluation of energy and CO2 discharge for KSRP has been carried. Furthermore, the viability of co-generation system in a small-scale house complex has been examined and the optimum design for the complex has been analisized by discussing the effects of house complex scale, running mode. Finally, the effects on local environment due to the introduction of DER have been simulated.