The SMART factory project which produces plastic from wood biomass (thinnings) at Maniwa biomass base has been developed. This development is aimed to construct a business model that increases the use of wood biomass. One issue is the necessity to economically reduce CO₂ emissions which are caused by the use of electric power and fossil fuel in the factory. To accomplish this, the method of “The Smart Photovoltaic power generation (hereinafter referred to as PV) and Electric vehicle (hereinafter referred to as EV) system” has been proposed, in order to replace fossil fuels with PV power which are consumed by gasoline vehicles. In order to expand this method into industrial applications, it is considered that an industrial vehicle such as a fork-lift become electrical. In addition, an electric industrial vehicle should combined with PV.
In this study, the energy system combined with the Electric industrial vehicles (hereinafter referred to as EIV) and PV is studied through the use of a mathematical model and some practical experiments. As a result, it has been clarified that the proposed system is able to reduce CO₂ emissions by 38% and has economy of IRR=6.4%.

抄録全体を表示

In this paper, we discussed a static analysis of double-effect thermal and electrical hybrid adsorption refrigerator. Double effect cycles can provide higher COP than that of single-effect cycle. This system may be effective for heat source temperature higher than single-effect cycle. We have proposed a compressor assisted thermal and electrical hybrid adsorption refrigerator. In this system, a compressor is incorporated into the thermally double-effect refrigerator for promoting desorption vapor transportation between 1^st and 2^nd adsorber. So, we have studied the effect of a compressor on cycle performance was investigated in COP_system, COP_electricity and SCE.
The result shows that thermal and electrical hybrid system can drive below 60 ℃. We have achieved COP_system of the system higher than that obtained by thermal operated double-effect cycle. And the SCE has same as that of thermal operated double-effect cycle. It was observed that incorporated compressor efficiency affected performance of SCE, COP_system and COP_electricity. On the conditions high compressor efficiency, COP_electricity and COP_system obtained high performance.

抄録全体を表示

In this paper, we focus on power generation performance, i.e., thermal efficiency, and particulate matter (PM) concentration in flue gas in Indian coal power stations. Multiple linear regression analysis and directional distance function were applied. The results indicate that thermal efficiencies and PM concentrations in flue gas can be explained by commission date (vintage). Thermal efficiencies can be explained also by total capacity in station; however, thermal efficiencies are not clearly explained by individual plant capacity. Ownership also affects thermal efficiency and PM concentration. Private owned and national owned plants indicate higher thermal efficiency and lower PM concentration compared with those performances of state owned plants. When Japan conducts a technical support for Indian coal power plants, we should focus on state owned plants which have relatively lower thermal efficiencies and higher PM concentrations. The Ministry of Power, the Government of India also has a similar awareness of the issues and measures in thermal efficiency have co-benefits for emission reduction of PM.

抄録全体を表示