About SS Heat Exchanger

Heat Exchanger Complete Information

What is a Heat Exchanger?

A heat exchanger is a mechanical devicedesigned to transfer heat between two or more fluids (liquid or gas) withoutmixing them. Heat exchangers are widely used in heating, cooling, and energyrecovery applications across industries.

 How Does a HeatExchanger Work?

Heat flows from the hot fluid to the coldfluid through a solid barrier (usually metal) or directly if fluids are incontact but not mixed. The direction of flow can be:

- Parallel flow: Both fluids move in thesame direction.

- Counterflow: Fluids move in oppositedirections (most efficient).

- Crossflow: Fluids move perpendicular toeach other.

Types of Heat Exchangers

Shell and Tube Heat Exchanger

Bundle of tubes inside a cylindrical shell.Used in power plants, oil refineries, HVAC.

Plate Heat Exchanger

Thin, corrugated plates stacked together.Compact, efficient, easy to clean.

Finned Tube Heat Exchanger

Tubes with fins to increase surface area.Used in HVAC, air-side applications.

Air Cooled Heat Exchanger

Uses fans to cool tubes exposed to air.Common in remote industrial sites.

Double Pipe Heat Exchanger

Simple pipe-in-pipe design for low capacityapplications.

Spiral Heat Exchanger

Two spiral channels; suitable for foulingor viscous fluids.

Plate and Shell Heat Exchanger

Plates enclosed in a shell; hybrid designfor demanding environments.

Materials Used

Stainless Steel Corrosion-resistant
Carbon Steel Cost-effective
Titanium Ideal for seawater
Copper/Brass High conductivity
Exotic Alloys For corrosive environments like Inconel, Hastelloy, Graphite

Applications

HVAC Heating and cooling air/water

Power Generation Condensers,economizers

Petrochemical Crude oil heaters, gascoolers

Food & Beverage Pasteurization,chilling

Pharmaceuticals Clean processtemperature control

Automotive Radiators, oil coolers

Selection Checklist

Type of Fluid Clean, dirty, corrosive
Flow Rate High or low
Temperature Range Operating limits
Pressure Rating Max allowable pressure
Heat Load Required energy transfer
Maintenance Needs Cleanability, accessibility
Space Compact or large footprint
Cost Capital + operating