Experimental evaluation of radiator control based on primary supply temperature for district heating substations

Jonas Gustafsson, Jerker Delsing and Jan van Deventer

Applied Energy, 2011, vol. 88, issue 12, 4945-4951

Abstract: In this paper, we evaluate whether the primary supply temperature in district heating networks can be used to control radiator systems in buildings connected to district heating; with the purpose of increasing the ΔT. The primary supply temperature in district heating systems can mostly be described as a function of outdoor temperature; similarly, the radiator supply temperature in houses, offices and industries can also be described as a function of outdoor temperature. To calibrate the radiator control system to produce an ideally optimal radiator supply temperature that produces a maximized ΔT across the substation, the relationship between the primary supply temperature and outdoor temperature must be known. However, even if the relation is known there is always a deviation between the expected primary supply temperature and the actual temperature of the received distribution media. This deviation makes the radiator control system incapable of controlling the radiator supply temperature to a point that would generate a maximized ΔT.

Keywords: District heating; Control; ΔT; Radiator system; Space heating (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (12)

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DOI: 10.1016/j.apenergy.2011.06.050

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