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Influence of the temperature decreasing of secondary water flow on the reduction of transport energy losses: three years of measurement in a pilot building.

Author(s) : LUKIC N.

Summary

Heat transport losses of district heating system can be significantly reduced by temperature decreasing of the secondary water (water in radiators). If the building demands of energy consumption are on the same level, the mentioned effect can be achieved by increasing of radiator areas in rooms. On that way the same amount of heat will be transferred on lower temperature of secondary water. Developing the project NPEE243001 activities, the three years measurement of energy consumption and all additional parameters is done in the prepared pilot building including 14 rooms. During first heating season, the pilot building is heated by existing radiators capacity and in next heating season by 16% increased radiators capacity. During third heating season the thermostatic valves are incorporated in radiators. On that way the reduction of secondary water temperature is achieved for 3.4°C. The reached effects of the reduction of heat transport losses are 5.1 W/m in secondary and within 1 and 2 W/m in primary pipe network.

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Details

  • Original title: Influence of the temperature decreasing of secondary water flow on the reduction of transport energy losses: three years of measurement in a pilot building.
  • Record ID : 2010-0199
  • Languages: English
  • Source: Zbornik radova. 40. Medunarodni kongres o grejanju, hladenju i klimatizaciji./ Proceedings. 40th International congress on HVAC&R.
  • Publication date: 2009/12/02

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