摘要:
The present invention relates to a remote meter-reading system which can improve transmission efficiency of meter-reading data meter-read by a calorimeter. The present invention provides a remote meter-reading system comprising: a temperature sensor for sensing the temperature of fluid moving through piping; a calorimeter for measuring an amount of energy for cooling or heating on the basis of sensing data transferred from the temperature sensor to generate meter-reading data; and a server for receiving the meter-reading data from the calorimeter to calculate the amount of used energy for cooling or heating, wherein the calorimeter determines whether failure has occurred in itself, generates first meter-reading data when it is determined that the failure has not occurred, generates second meter-reading data different from the first meter-reading data when it is determined that the failure has occurred, and transmits the first and second meter-reading data to the server.
摘要:
The present invention provides: an electrode-supporting type of gas-separation membrane module for selectively effecting the passage of a gas via an electron exchange reaction due to a coupling-material layer and gas exchange via an ion-conducting separation layer; a tubular structure of same; a production method for the tubular structure; and a hydrocarbon-reforming method using the gas-separation membrane module. The present invention is advantageous in that outstanding chemical and mechanical durability can be ensured by using a fluorite-based ion-conducting membrane which is chemically stable in C02 and H2O atmospheres in particular, at high temperature, and in that a pure gas can be produced inexpensively since the passage of gas occurs due to an internal circuit even without applying a voltage from the outside.
摘要:
A graphite crucible for electromagnetic induction-based silicon melting and an apparatus for silicon melting/refining using the same, which performs a melting operation by a combination of indirect melting and direct melting. The crucible is formed of a graphite material and includes a cylindrical body having an open upper part through which a silicon raw material is charged into the crucible, and an outer wall surround by an induction coil, wherein a plurality of first slits are vertically formed through the outer wall and an inner wall of the crucible, and a plurality of second slits are vertically formed from an edge of the disc-shaped bottom of the crucible toward a center of the bottom.