Case Study: Fan 3 [Accommodation Facility] Inverterization of Supply and Exhaust Fans

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last updated：Oct 06, 2014

八紘テクノ

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Detecting the operating status of kitchen equipment with sensors and controlling the intake and exhaust with an inverter to reduce power consumption.

By linking the supply and exhaust fans, the conditioned air is not unnecessarily lost to the outside, improving air conditioning efficiency and reducing power consumption. Since busy hours vary due to banquet schedules, instead of time-based control, the operation status of kitchen equipment is detected by sensors, and the supply and exhaust are controlled by inverters. During times when no heating or cooking is taking place, temperature sensors and carbon dioxide concentration sensors help reduce the drying of served food. 【Features】 ○ Control Method: Motor speed is controlled by inverter using temperature sensors and carbon dioxide concentration sensors ○ Target Equipment: Kitchen ventilation system Supply fan (30.0 kW), Exhaust fan (37.0 kW) For more details, please contact us or download the catalog.

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

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【Results of Implementation】 ○ Annual energy savings of 96,402 kWh → Approximately 38% reduction in electricity usage 【Implementation Points】 ○ Due to varying busy hours based on banquet schedules, control is not time-based; instead, the operation status of kitchen equipment is detected by sensors to control the intake and exhaust. ○ During times when heating and cooking are not taking place, low-speed operation of intake and exhaust is controlled by an inverter using temperature and carbon dioxide concentration sensors, reducing the drying of supplied food. ○ By linking the intake and exhaust fans, conditioned air is not excessively exhausted, improving air conditioning efficiency and reducing electricity usage. ● For more details, please contact us or download the catalog.