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Title:
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Haalbaarheidsstudie energiebesparende maatregelen: Bedrijfsgebouw Trend Cosmetics b.v., Wognum
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Author(s):
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Published by:
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Publication date:
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ECN
Solar Energy
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1-4-1999
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ECN report number:
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Document type:
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ECN-C--99-004
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ECN publication
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Number of pages:
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Full text:
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46
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Download PDF
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Abstract:
With respect to the study on the title subject it appears that thecondition of the soil in Wognum is such that foundation piles are necessary
to support the building. An integration of a vertical ground heat exchanger
and the foundation pile is called an energy pile. In a previous study in
which recommendations were made for the energy supply of Trends Cosmetics it
was argued that in the piles below the building facade, 20 to 24 piles can be
energy-piles, which approximately can extract 10 kW low temperature heat from
the underground. When used by a heat pump (COP=3) this results in 15 kW high
temperature heat that can be applied in the building. If the building, that
already has a low heat consumption, is equipped with a so-called balanced
ventilation system with 90% heat recovery the heat pump and energy piles can
supply about 90% of the total annual heating demand. The peak demand is
furnished by a normal gas-fired condensing boiler. Also, by direct cooling
via the floor heating system, the cooling load of the building can be
realized by the energy piles and an air conditioning system is not necessary.
In this case, a smart building control system should control the cooling in
such a way that the maximum cooling load is distributed over 24 hours. It is
concluded that by applying only a few energy piles costs can be saved while
no investments have to be made for an expensive cooling machine, and primary
energy is saved because a heat pump meets 90% of the yearly heat demand.
Furthermore, it is shown how much primary energy can be saved for four
packages of measures relative to a reference situation. Also an estimate of
the costs of these measures is given. 4 refs.
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