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Dear TRNSYS-Users, I have the following Problem and don't know if it's possible to
simulate with TRNSYS 16/TRNFlow: A big (very big) coal storage should be built. The storage is round and has a base of 12,500 m². The clearance amounts 30 m, so the storage has a volume of
375,000 m³. The coal it is stored in the lower area. Because of oxidation the coal issues heat - oxidation-heat (? - don't
know the right word) . To avoid a spontaneous inflammation the coal is sprayed with
water at temperatures above 60-80°C. The coal is already stored with 10-12% of moisture content. In the upper area of the outer wall (almost over the stored coal-
under the roof) additional air-vents are planned. In the middle of the roof a opening is planned for the outgoing
air. The hall should be ventilated naturally (without mechanical
ventilation). Here the following question arose: Are the additional air-vents big enough to avoid construction
damages and forming
of condensate? Provided to know the oxidation-heat and how much water is
imported, is such a simulation with TRNSYS/TRNFLOW generally possible? Because the huge dimension of the coal-storage I think it should
be divided into three vertical zones: Maybe the lower zone with the coal, a middle zone with the additional
air-vents and an upper zone with the exhaust air opening … Because the dimensions are extremely big, nevertheless, I ask
myself whether TRNSYS is suitable for this? Also the moisture model will be very difficult to describe because
in contrast to the volume only small moisture capacity is available (the roof
is from trapezoid metal and the outer walls are from concrete). I
hope someone has experiences in here. Thanks
for your helb. With
kind regards Daniel
Bader GN
Bauphysik Ingenieurgesellschaft mbH Bahnhofstr.
27 70372
Stuttgart Germany Tel.:
0711-9548800 Fax:
0711-56461 Geschäftsführer:
Dipl.-Ing. (FH) Manfred Finkenberger Sitz
der Gesellschaft: Stuttgart, HRB 14870 |