| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a variable data computing device capable of computing time-varying accurate pressure data and air volume data of an air-conditioning element for use in air conditioning. <P>SOLUTION: The variable data computing device 50 computes combined resistance by combining electric resistance together while using the respective air resistance of an element of an air supply and exhaust system, an air-conditioned room and an element of the air-conditioned room as the electric resistance. The uplift pressure of at least one of air supply and exhaust fans of the air supply and exhaust system is used as an electromotive force, and the air volume of air flowing through the air supply and exhaust system and the air-conditioned room is turned into an electric current. An equivalent electric circuit is generated by using the computed combined resistance; an electrical theory, a formula, a theorem and a law are applied to the generated equivalent electric circuit; and the time-varying voltage (pressure data) and electric current (air volume data) of the element of the air supply and exhaust system, the air-conditioned room and the element of the air-conditioned room are computed by using the electromotive force, the electric current and the combined resistance. <P>COPYRIGHT: (C)2012,JPO&INPIT |
