Abstract: Diagnosing energy conservation requires not only various measurement items and a vast amount of data but also advice from experts having knowledge of energy conservation diagnosis, and there has been no such method for diagnosing energy conservation easily. Provided therefore is a system that makes it possible to achieve energy conservation diagnosis with high accuracy without requiring expert knowledge by using the energy consumption data of the building and the weather data of the meteorological station closest to the location of the building to estimate each-usage energy consumption of the building and to calculate energy savable amount, demand reducible amount, and an energy saving effect achieved by the behavior change and the like, and systematizing the calculation by using a statistical method and the like.

Abstract: An apparatus for converting synthetic resin into oil thermally decomposes the synthetic resin by heating it in a heating vessel, thereby producing oil. The apparatus includes the heating vessel and a heating furnace. The synthetic resin fed into the heating vessel is stirred. At least the lower part of the heating vessel is disposed in the heating furnace. By providing a radiating fin on the outer surface of the upper part of the heating vessel disposed outside the heating furnace or providing a heat-insulation on the outer surface of the upper part of the heating vessel disposed in the heating furnace, the temperature rise in the upper part of the heating vessel is limited.