Case Study: Pump 2 [Commercial Facility] Inverterization of Cooling Water Pump

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last updated：Oct 06, 2014

八紘テクノ

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Monitor the temperature of the cooling water outlet and further reduce power consumption through inverter control except during the peak summer daytime.

The flow rate sent to the cold water pump was adjusted by throttling the valve, but significant reductions in power consumption were achieved by controlling it with an inverter. By monitoring the temperature at the cooling water outlet with a temperature sensor, the pump motor's rotation speed can be controlled by the inverter, allowing for further energy savings except during the peak summer daytime. 【Features】 ○ Control Method: Pump motor rotation speed controlled by inverter using a temperature sensor ○ Target Equipment: Absorption chiller 　　　　　　Cooling water pump (200V/55.0kW) For more details, please contact us or download the catalog.

Related Link - http://www.hakko-techno.co.jp/case/installation/pu…

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【Implementation Results】 ○Annual energy savings of 96,600 kWh →Approximately 54% reduction in electricity consumption 【Implementation Points】 ○The flow rate sent to the chilled water pump was adjusted by throttling the valve, but significant reductions in power consumption were achieved by controlling it with an inverter. ○By monitoring the temperature at the chilled water outlet with a temperature sensor, further energy savings are possible except during the peak summer daytime. ●For more details, please contact us or download the catalog.