HETPop [20 KpFppaSsSf2 f WR100

100.0

90.0

80.0

70.0

60.0

50.0

40.0

30.0

20.0

10.0

100.0

90.0

80.0

70.0

60.0

50.0

40.0

30.0

20.0

10.0

^rrn--

-----

________

X \

w

\

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NTS per bed

Figure 17 Efficiency vs. NTS.

The bed effective number of theoretical stages can be calculated by:

For a column requiring more than 10 NTS, it is in general advantageous to subdivide the packing in two or more beds and limit the NTS per bed to around 10. The lower the NTS per bed, the higher the resulting bed efficiency. The limiting factor of subdividing the column into a large number of redistributed beds, is the extra column height (or the effective packed height loss for column revamps) necessary to accommodate each redistributor, and the resulting increased cost. For new columns, the optimal number of beds is the one that results in the required performance at minimum cost, for revamps, it is often the one that results in the maximum available overall NTS. The best choice in each case is determined by an optimization.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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