Dry Cooler

Approx. Rs 6,65,000 / PieceGet Latest Price

Product BrochureProduct Details:

Dry Coolers: Complete Guide to Industrial Air Cooling
An article discovering a simple cooling technology in high demand by customers in industry and civil air conditioning: dry coolers, or dry cooling systems. We are talking about solutions with low acquisition cost and low maintenance requirements, but which require specific output temperatures of the fluid to be cooled and sometimes large installation spaces.
So let’s take a detailed look at what dry coolers are, how they work, and what they look like.
1. Introduction to Dry CoolersDry coolers are based on a simple but effective principle: convection cooling. As outside air is conveyed and pushed by one or more fans, it passes through “finned coils” located inside the dry cooler, absorbing heat from the process fluid flowing through it. The air is then expelled into the environment, completing the cooling cycle.
A few notes on terminology before continuing. Dry coolers are also often referred to as air coolers, due to their characteristic of operating solely with air as the carrier; the terms are therefore interchangeable. It is also not uncommon to read the term dry cooling system.
2. Structure and components of dry coolersDry coolers consist of relatively simple components that are effective in working together to dissipate heat.
Closed circuit with finned coils. The heart of the dry cooler is a closed circuit that contains/runs the process fluid that is to be cooled. This fluid flows within coils of tubes connected together (via welded bends) and inserted into a series of “fins,” which are thin plates that form a “finned pack” (finned coils).Metal fins on the surface of the coil increase the heat exchange surface area with the air, maximizing cooling, that is, the transfer of fluid heat to the external environment. Materials, thicknesses and geometries of finned coils are defined according to the characteristics of the fluid to be cooled and specific requirements.Fans. Powerful fans draw air from the environment and push it through the finned coils. The speed and airflow rate of the fans are critical to ensure effective cooling of the fluid.Motor. Running the fans is one or more electric motors. Modern dry coolers use high-efficiency motors to reduce energy consumption and keep noise down.Frame and structure. The frame and structure of the dry cooler must be weatherproof and provide protection for the internal components. They can be made of galvanized or painted steel to resist corrosion.
3. Advantages of dry coolersThere are a number of benefits to adopting dry coolers.
Simplicity of construction, installation and start-up. It is evident from the description that these are machines that do not require special ancillary work to assemble (exclusive of grounding and necessary electrical and hydraulic connections).Low maintenance. The robust but simple design of dry coolers requires very little intervention, ensuring low operating costs in the long run.Air only. The operation of this technology requires nothing but outside air, as we have seen moved by one or more fans. Of course, this could translate into a limitation for those applications that require precisely lower fluid temperatures to cool than outside air.Low operating costs. This is of course an effect of the previous functional characteristics.Installation flexibility. Dry coolers can be installed outdoors or indoors, adapting to different plant layout requirements. Their modularity also makes them suitable for retrofitting existing plants.Versatility of operation. Systems with dry coolers can operate throughout the year, without problems referred to low surrounding temperatures.