Patent Document ID: 20140202680
Application ID: 14149690
Patent Flag: 0

Claim One:
1. A hot water supply apparatus comprising: a heat exchanger configured to heat passing water by means of a heat quantity generated by a heat source mechanism; a first temperature detector arranged on an upstream side of said heat exchanger; a second temperature detector arranged on a downstream side of said heat exchanger; a flow rate detector for detecting a passing flow rate through said heat exchanger; and a control apparatus for setting a requested heat quantity generation to said heat source mechanism for each predetermined control cycle based on an inflow water temperature detected by said first temperature detector, a tapping temperature detected by said second temperature detector, a set temperature of said tapping temperature, and a flow rate detected by said flow rate detector, said control apparatus including: a learning unit for learning a conversion factor between a temperature and a heat quantity based on a performance ratio of an output heat quantity based on a temperature difference between said inflow water temperature and said tapping temperature and said flow rate with respect to said requested heat quantity generation to said heat source mechanism; a feedforward control unit for calculating a first requested heat quantity generation based on a temperature difference between said set temperature and said inflow water temperature, said flow rate, and said conversion factor learned by said learning unit; a feedback control unit for calculating a second requested heat quantity generation based on a temperature deviation of said tapping temperature with respect to said set temperature, said flow rate, a control gain, and said conversion factor learned by said learning unit; and an addition unit for setting a requested heat quantity generation to said heat source mechanism by addition of said first requested heat quantity generation, and said second requested heat quantity generation.