| 摘要 |
OF THE DISCLOSURE COOLING SYSTEM5 The present invention provides a cooling system with high energy savingperformance which reduces running cost by controlling an air blow quantity of a coolingapparatus in accordance with a load while preventing a temperature rise of electronic devices in a cooling system including the cooling apparatus which is installed between racks and performs semi-local cooling operation, in a refrigerant natural circulation cycle.10 An intake air temperature sensor 80 is installed on an air intake surface of each of cooling apparatuses 20a and 20b, and a return air temperature sensor 82 is installed on each of exhaust air surfaces, and a temperature difference between an intake air temperature and a return air temperature is calculated by a blower frequency switching device 70 from measured values of the intake air temperature sensor 80 and the return air15 temperature sensor 82. By the blower frequency switching device 70, frequencies of the blowers 22a and 22b are controlled to frequencies corresponding to the temperature difference.Figure 1
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