hi:cooling:cooling:blmrackcooling
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hi:cooling:cooling:blmrackcooling [2023/02/01 15:27] p.boutachkov |
hi:cooling:cooling:blmrackcooling [2023/02/01 21:10] (current) p.boutachkov |
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| Based on the estimate we need of order of 1600-1700 W cooling power. So lets use 1750 W for the search. | Based on the estimate we need of order of 1600-1700 W cooling power. So lets use 1750 W for the search. | ||
| - | A DEC20 at __ 35 C __ ambient temperature should be able to cool down to __ 30 C __. This is a drop in replacement of a DEC15. It is 6 kg heavier than DEC15. | + | A DEK20 at __ 35 C __ ambient temperature should be able to cool down to __ 30 C __. This is a drop in replacement of a DEK15. It is 6 kg heavier than DEK15. |
| - | A DEC30 can cool bellow __ 20 C __ when operated at __ 35 C __ room temperature. But it requires more space and is 80 kg | + | A DEK30 can cool bellow __ 20 C __ when operated at __ 35 C __ room temperature. But it requires more space and is 80 kg |
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| + | As extreme case lest take __ 40 C __ hall temperature. The the DEK20 should stabilize the rack temperature just bellow __ 35 C __. A DEK30 unit will no have problems keeping the temperature bellow __ 20 C __ even at __ 40 C __ ambient temperature. | ||
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| + | Therefore a DEK20 is the minimum suitable choice for the rack cooling. A DEK30 is to be considered if additional BLM will be operated from the same rack. | ||
| ====== Summary ====== | ====== Summary ====== | ||
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| * The cooling power needed to control the temperature in the rack is of order of 1700 W. I expect to add 4 more units, 2 LED drivers and 2 switching matrices. The will add of order of 40 W. Hence, I use 1750 W for the estimates | * The cooling power needed to control the temperature in the rack is of order of 1700 W. I expect to add 4 more units, 2 LED drivers and 2 switching matrices. The will add of order of 40 W. Hence, I use 1750 W for the estimates | ||
| * A DEK15 unit operating in __ 35 C __ hall temperature will stabilize the rack temperature at around __ 40 C __. | * A DEK15 unit operating in __ 35 C __ hall temperature will stabilize the rack temperature at around __ 40 C __. | ||
| - | * A DEK20 unit operating in __ 35 C __ hall temperature will stabilize the rack temperature at around __ 30 C __. | + | * A DEK20 unit operating in __ 35 C __ hall temperature will stabilize the rack temperature at around __ 30 C __. (Note: this is a drop in replacement of DEK15, it adds 6 kg to the roof load) |
| - | * A DEK30 unit can keep the rack temperature bellow __ 20 C __ even in __ 35 C __ hall. | + | * A DEK30 unit can keep the rack temperature bellow __ 20 C __ even in __ 35 C __ hall. |
hi/cooling/cooling/blmrackcooling.1675261645.txt.gz · Last modified: 2023/02/01 15:27 by p.boutachkov
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