Cooling Tower: Relative Plan Area (RPA) and Relative Power Consumption (RPC) with respect to Relative Cooling Capacity (RCC)
The following graph illustrates the relationship between the Relative Plan Area (RPA) and Relative Power Consumption (RPC) with respect to increasing Relative Cooling Capacity (RCC), and describes how to double the relative cooling capacity with the same values of all other thermal and size conditions.
|
RCC
|
RPA
|
RPC
|
|
1
|
1.00
|
1.00
|
|
1.1
|
1.15
|
1.33
|
|
1.2
|
1.31
|
1.73
|
|
1.3
|
1.48
|
2.20
|
|
1.4
|
1.66
|
|
|
1.5
|
1.84
|
3.38
|
|
1.6
|
2.02
|
4.10
|
|
1.7
|
2.22
|
4.91
|
|
1.8
|
2.41
|
5.83
|
|
1.9
|
2.62
|
6.86
|
|
2
|
2.83
|
8.00
|
In order to double the capacity (Relative Cooling Capacity) with the same values of all
other thermal and size conditions, the following must be done:
-
Increase the surface of the tower by 2 ^ 1.5 times, that is, 2 (double) to the power of 1.5 = 2.83.
The tower must be 2.83 times bigger with the same fan, air flow capacity, etc.
OR:
- Increase the power to 2 ^ 3 times, that is, 2 (double) to the power of 3 = 8.
The power of the engine must be 8 times greater with the same surface of the tower
(verifying the speeds etc.)
References:
Comparative Evaluation of Different Packings
Péter Gosi, Institute far Electric Power Research (VEIKI), Budapest, Hungary
Judith Halasz, Universidade Estadual de Campinas, Sao Paulo, Brazil,
Pal Kostka
It is truly a very valuable information Bruno.
Thanks Atul, all my posts are a collection of over 50 years of my experiences as a designer and manufacturer with cooling towers. Thanks again and keep following me.
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Grazie per il tuo apprezzamento. Sicuramente condividere le esperienze che abbiamo acquisito è sempre costruttivo. la mia email: [email protected]