To operate an inverter-driven turbo freezer at high efficiency, and perform an optimum capacity control according to various operation modes in controlling the number of inverter-driven turbo freezers in a heat source system having a plurality of inverter driven turbo freezers.
When the number of inverter-driven turbo freezers 1c-1d is controlled by the controller 9 according to a requested heating value to be born by a plurality of inverter-driven turbo freezers 1c-1e, the controller 9 determines a load ratio range where a result factor becomes a predetermined value or more in the relation between the result factor of the freezers 1c-1e determined depending on the temperature of cooling water detected by a thermometer t and a load ratio, and controls the inverters of the freezers 1c-1e so that the load ratios of the individual freezers 1c, 1d and 1e are within the determined load ratio range.
TSUDA JOJI
KUWABARA YASUHIRO
UEDA KENJI
TAITOU KAZUMA
SONY CORP
MITSUBISHI HEAVY IND LTD
Hidemi Matsukura
Yutaka Nagata
Yoshiyuki Kawaguchi