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Topics of Environmental Activities
An explanation about our environmental activities that we especially emphasize.
- Converting the boiler fuel to natural gas
- Promoting to seeing the energy consumption
- Introduction of controller that automatically control the number of operating compressor and boiler
Our steam boiler systems are being converted from heavy oil to natural gas to be friendly to the environment. The old boilers are being replaced with a high efficiency type during this conversion. After the Arai plant began to change the boiler systems in 2005 and introduced it one by one, The change in all of domestic plant (5 plants) was completed in last year.
The natural gas that the Company uses are obtained from wells in Japan and reduces not only CO2 when burned but also approximately 50% of the nitrogen oxides (NOx) and nearly 100% of the sulfur oxides (SOx) compared with heavy oil. The price of such natural gas is low and does not fluctuate much, which contributes to a substantial cost reduction.
When we proceed conservation of energy more than before.we are promoting to seeing the energy consumption. Regarding manufacturing facilities where about 50% of the electric power of our company. (Another is the facilities equipment such as high-pressure air and cold water.)
Up to now . we have been measured energy consumption by each area regularly. Then we improved measuring real-time by each equipment. As a result. It comes to be able to look at timing where uselessness is generated and the energy use characteristic at each equipment. etc. And we uses it effectively as a tool of the conservation of energy improvement of the effect grasp of the problem of the extraction and measures.
A high-pressure compressor and the boiler being set up by plurals by each factory additionally adjust the number of operating steps to the load.
The controller judges to be the most efficient, and the number of operating steps has been changed by the automatic operation by the introduction of the automatic number controller in the equipment though it runs short and the worker judges the situation and the stop work at the additional operation surplus was operated by hand power so far. It is useful also for the achievement of the production by the minimum energy, the man-hour reduction of the worker, and the stable operation of the factory.
