2007年3月3日土曜日

Heat Pump System.

In Japan, Heat pump water heater named "Eco-cute" arrived on the market in 2001. I was astonished that we, common people, can use such high technology machine already. In not-so-distant future, heat pump air-conditioner seems to be major. It is said the technology would cut down amount of emission equivalent to 5% of current amount of emission by current technology and 15% of it in not -so distant future.



Heat pump is a technology to displace heat. It doesn't burn fossil oil. Source of heat is air which is ubiquitous. The equipment take in heat of the air and make air to be raised temperature and transfer the air into buildings.



The heat energy exists even in air which is -459 degree(F). In air which is -4 degree(F), there is 250K(Kelvin) energy. In air which is 68 degree(F), there is 290K. To resolve the difference of temperature, we need 1270K with inflammation. But we need only 290K with heat pump technology. Of course, it doesn't burn any thing, It emits no CO2 and no NOx. When we burn fossil energy in room, we need to ventilate. Therefore we also have to think of the loss. Next August, DAIKIN launch latest heat pump air conditioner for buildings in cold district. As to electricity expense, the system realized 27% saving.



The company is very appealing company. In fact, the chief engineer of Daikin was my father's friend and he lived near my house. Kids went to same schools. Oh My dog's mother was their dog. I learned them by reading a business journal. So, it is not information like insider trading. :-)



Of course, we still need fossil oil to use the technology because we need electricity and there are many heat power plants. But it is sure that we can hope for technology. In the distant future, we may not have heat power plants and hopefully not have atomic power plants.



To escape from society too much depending on fossil fuel is ambition of Japan which doesn't have fossil fuel. There are many merits for Japan in economy, military affair, diplomacy and native environment etc. It is still a remote future thing but I hope. Oh, Japan has a famous gas field but it leads to a dispute between China and Japan. I don't mention about it.



It is a photo of Shiretoko in Hokkaido.

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