Share

Reduction of electricity consumption in a cooling system through reduction of discharge pressure – case study.

Author(s) : ALVES MENDES J. E., MAGALHÃES SOBRINHO P.

Summary

The study and work realized were to reduce electricity consumption in an industrial cooling at beverage industry. Anhydrous ammonia (NH3) is the main refrigerant in this system, which has three chillers with screw compressors to supply all thermal load demand in the plant. The methodology applied in this case study was to evaluate the cooling system, its consumption and limitations. This evaluate helped to identify an opportunity to improve the efficiency in cooling system and to saving electricity consumption by reducing the discharge pressure, cleaning of plate heat exchangers and reforming cooling towers. The premise used was that cooling capacity increases 1% and power consumption reduces of 2% to 3% for each 1°C of reduction in discharge temperature. Results after improvements achieved more than 1 MWh / year of reduction in electricity consumption, compared to the initial measured.

Details

  • Original title: Reduction of electricity consumption in a cooling system through reduction of discharge pressure – case study.
  • Record ID : 30011754
  • Languages: English
  • Publication date: 2013/11
  • Source: Source: 22nd International Congress of Mechanical Engineering (COBEM 2013)

Indexing