Indirect Direct (2 stage) Evaporative Cooling Units

Indirect Direct (2 stage) Evaporative Cooling Units

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Renotech Two stage IDEC systems are potential replacement to conventional air washer and air cooler systems with up to 40% savings in power as well as water consumptions. Designed around Air to air heat exchanger for pre cooling the air these systems at their best can offer cooling at as low as 300 W/ Ton which is most energy efficient air conditioner alternative.

RenotechTwo Stage IDEC are available from 10000 CFM onward with standatrd AHU construction suitable for indoor or out door duty with option of belt driven or direct driven fans. While the First stage cools the air sensibly, second stage does adiabatic cooling which results in supply air temperature lower than ambient WB. This effectively reduces iar quantities for given heat load in the space and lower operational cost.

Application Areas

  • Large Industrial buildings
  • Manufacturing facilities
  • Large Electrical rooms
  • Paint Booths
  • Printing presses
  • Large Warehouses
  • Industrial kitchens
  • Educational as well as Public buildings
  • Community halls, function halls
  • Religious buildings, prayer halls and meditation centers

How much cooling can be achieved?

  • Consider the ambient conditions as 42.2 DB & 23.5 WB
  • Indirect Stage efficiency 65%
  • First stage cooling – ( 42.2 -23.5) x 0.65 = 12.11
  • First Stage outlet DB – 42.2 – 12.11 – 30.1 C
  • From Psychrometric chart the WB is 19.9
  • Second stage cooling – ( 30.1 -19.9)x 0.90 = 9.18
  • Supply Temperature: 30.1 – 9.18 – 20.9 Degree C
Indirect Direct 2 stage evaporative cooling HVAC
Indirect Direct 2 stage evaporative cooling HVAC
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