d*a
发帖数: 1863 | 1 HVAC里
比如说加一个low efficiency filter让气流更均匀一些
这样pressure drop必定增加，因此增加的能耗能不能用 delta P直接计算呢
还需要考虑什么参数？ | N***r
发帖数: 2539 | 2 You can check it from any fundamental thermal dynamics book. In your HVAC
case, assuming steady state, incompressible flow, no heat add/removal, no
shaft work in this porous media, the negative work done by the porous media
to your working fluid is,
delta_P * V
in which, delta_P is the pressure loss through the porous media [Pa], and V
is the volumetric flow rate [m^3/s], note 'delta_P * V' is actually power [W
].
You may double check it with a book to confirm that. |
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