EWK Modular

AXIAL VENTILATION

OPEN CIRCUIT

Open circuit Cooling Tower for big water flows, pre-assembled from the factory.

Broad Range: From 500 to 10.000 m³/h)
Modular design in FRP
Corrosion free
Standard Fill materials in Polypropylene with anti-legionella treatment (SANIPACKING®)
Industrial applications
Easy maintenance
Materials highly resistant to all aggressive conditions, as well as to extreme temperatures
Pre-assembled at the factory
Three different options:
- A) WITH complete basin and inlet Louvers
- B) WITHOUT basin but WITH Inlet Louvers
- C) WITHOUT basin and WITHOUT Louvers

Technical Features

Model	*Dissipation kw	Empty weight kg	Service weight kg	Fan Power kw	Long mm	Wide mm	HIgh mm	Dim. Drawing pdf	Plan Dim. dwg
Heat rejection at the following conditions: Tin: 35,0ºC Tout 30,0ºC Twb: 24,0ºC
COMPLETE (WITH BASIN AND LOUVERS) (A)
EWK 2100	3372,6	5100	19100	22	4740	4610	6750
EWK 3100	5117,1	6800	24800	30	7040	4610	7095
EWK 4500	7267.5	10100	36400	37	7040	6900	7255
EWK 4200	6745,2	10300	34700	2×22	4740	9240	7050
EWK 6200	10234,2	13800	49800	2×30	7040	9240	7395
EWK 9000	14535,0	20400	72900	2×37	7040	13850	7555
NO BASIN (B)
EWK 2100	3372,6	4200	5900	22	4740	4610	6150
EWK 3100	5117,1	5600	8100	30	7040	4610	6655
EWK 4500	7267.5	8300	12100	37	7040	6915	6495
EWK 4200	6745,2	8500	11900	2×22	4740	9240	6450
EWK 6200	10234,2	11400	16400	2×30	7040	9240	6955
EWK 9000	14535,0	16800	24300	2×37	7040	13850	6795
NO BASIN / NO LOUVERS (C)
EWK 2100	3372,6	3300	5000	22	4740	4610	4175
EWK 3100	5117,1	4400	6900	30	7040	4610	4520
EWK 4500	7267.5	6500	10300	37	7040	6915	4680
EWK 4200	6745,2	6700	10100	2×22	4740	9240	4175
EWK 6200	10234,2	9000	14000	2×30	7040	9240	4520
EWK 9000	14535,0	13200	20700	2×37	7040	13850	4680

Working Principles

Cooling towers bring a cold and dry air mass in counter-flow to hot water that comes from an industrial or air conditioning process. Part of this water evaporates, cooling the rest. The necessary heat for this is approx.597 Kcal/litre. The cold water produced is returned into the process to re-iniciate the cycle. The equipment with this evaporative refrigeration principle are very important for energy efficiency.

The difference between the required cold water temperature and the wet bulb temperature (called cooling limit distance), is significant to determine the size of the tower. The smaller the cooling distance is, the bigger the interchanging surface is needed. The limit distance must be of at least 3-4º C. In open cooling towers there is a close contact water-air, which is bigger thanks to the fill packings, that provide a big surface of exchange, improving performance and evaporation. There are different kinds of fill packing for different water quality.