What is heat exchanger classification?

May 13, 2020 Off By idswater

What is heat exchanger classification?

Heat exchangers are typically classified according to flow arrangement and type of construction. The simplest heat exchanger is one for which the hot and cold fluids move in the same or opposite directions. This heat exchanger consists of two concentric pipes of different diameters. parallel-flow arrangement.

How many types of exchangers are there?

There are three primary classifications of heat exchangers according to their flow arrangement. In parallel-flow heat exchangers, the two fluids enter the exchanger at the same end, and travel in parallel to one another to the other side.

What is the function of heat exchanger?

A device for transferring thermal energy (heat) from one fluid (liquid or gas) to another, when the two fluids are physically separated; such as a radiator.

What is exchanger and types?

Types of Heat Exchangers. Shell and tube heat exchangers. Double pipe heat exchangers. Plate heat exchangers. Condensers, evaporators, and boilers.

What is the most effective exchanger?

Plate exchanger is the most efficient due to turbulent flow on both sides. High heat-transfer coefficient and high turbulence due to even flow distribution are important. However, a plate heat exchanger regenerator is restricted to low viscosities.

Why do we need heat exchanger?

Heat exchangers are used to transfer heat from one medium to another. These media may be a gas, liquid, or a combination of both. Heat exchangers can improve a system’s energy efficiency by transferring heat from systems where it is not needed to other systems where it can be usefully used.

What are the types of recuperator?

6.25. Figure 6.25. Appearance of a heat recuperator. There are three types of recuperators: cross-flow, in which hot and cold air circulate in orthogonal directions to each other so that they cross, parallel flow and rotary flow, which has a rotor with high thermal inertia that rotates driven by a motor.

What are the examples of heat exchanger?

(i) Condensers and evaporators in refrigeration units. (ii) Evaporator of an ice plant and milk chiller of a pasteurizing plant. (iii) Automobile radiators and oil coolers of heat engines.

Which heat exchanger is better and why?

Counter flow heat exchangers are inherently more efficient than parallel flow heat exchangers because they create a more uniform temperature difference between the fluids, over the entire length of the fluid path.