Development of Energy Upgrading System

对当今能量流动的分析清楚地表明，从(火用)的新概念来看，含碳燃料燃烧将热能转化为机械能或电能的过程造成了严重的损失。但是，研究也表明，在燃烧过程中将燃料从碳质燃料替换为氢气可以显著减少这种(火用)损失。此外，由于氢气是一种无碳燃料，氢气的燃烧不会产生SO2甚至CO2的排放。从这些角度出发，研究了利用废弃的低位热能制氢的过程和氢气的燃烧。同时，还开展了用于制氢反应器和高温氢分离膜的材料开发。基于氢气的新能源系统的实现需要在燃烧、传热、催化剂、材料和反应过程等方面进行广泛的研究。根据这项小组研究的结果，对优先领域的科学研究应用了A-补助金。

The analysis of today's energy flow clearly showed that the conversion process of thermal energy by the combustion of carbonaceous fuels to mechanical or electric energy causes a serious loss from the viewpoint of a new concept "exergy". But, it is also shown that the replacement of a fuel from carbonaceous fuels to hydrogen in combustion processes can considerably reduce this exergy loss. Besides, the combustion of hydrogen has no emission of SO_2 and even CO_2, because hydrogen is a C-free fuel.From such views, the process of hydrogen production using wasted low-level thermal energy and the combustion of hydrogen have been studied. At the same time, the development of materials suitable for reactors of hydrogen production and the membrane for hydrogen separation at high temperatures has been carried out.Realization of a new energy system based on hydrogen demands a wide range of studies such as combustion, heat transfer, catalyst, material and reaction process. A-Grant-in Aid for Scientific Research on Priority Areas was applied based on the results obtained by this group study.