I know the calorific value of heating oil: 10kwh/l, but how do I calculate further?
The management board of the building did not want to solve it or postpone it until the summer because they were afraid of the costs (pipe freezing, draining and refilling the entire 8-storey system). I want to calculate for them what it has cost so far for it to burn for nothing. Radiator is equipped with a modern radiator valve with 5 positions and frost setting. The radiator is still of the old-fashioned type, ie a row of ribs, 2 meters long and 1 meter high. The space is about 4 by 5 in size.
Answer
Hi Erwin,
Calculating this is not so easy. Several things play into this:
– position of the tap
– colour, shape and design of the radiator
– temperature of the boiler water
– room temperature
– insulation of that space
– draft losses
– …
You can possibly make an estimate:
Estimate what percentage this radiator makes up of all radiators in the entire building. If we assume that it was in frost mode, the heating has not been on every day, and since about 20% of the days since this autumn the temperature has been below 5°C, we take 1/5th of the previous number.
Since the temperature in that room is set lower than that of the rest of the building, and this room received heat from lower, upper and adjacent rooms due to insulation losses and is thus also slightly heated, the heat consumption here will, for example, only be 1/ 3 are from the other classrooms.
The estimated cost is then the maximum heating oil consumption of this winter multiplied by the percentage of the room in the building, divided by 5 and divided by 3.
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Kind regards,
Luc
Answered by
ir Luc Bosmans
Technology in the audiovisual sector
Quai de l’Industrie 170 B-1070 Brussels
http://www.erasmushogeschool.be