How Do I Choose A Heat Exchanger?

How do you choose a shell and tube heat exchanger?

Tips on Selection of Shell and Tube Heat ExchangersMeasurement of Heat Load.

Levelling-Off Temperature.

Natural Radiation Cooling.

Estimating Heat Load.

Maximum Heat Exchanger Capacity.

Heat Generation in the System.

HP = GPM × PSI ÷ 1,714.Cooling Water.More items….

How do you select a heat exchanger?

The following criteria can help in selecting the type of heat exchanger best suited for a given process:Application (i.e. sensible vapor or liquid, condensing or boiling)Operating pressures & temperatures (including startup, shutdown, normal & process upset conditions)More items…

What is the most effective heat 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. With high viscosities, a special tubular may be required.

Is boiler a heat exchanger?

Since exchange of heat occurs in the Boilers, Boilers can be termed as a Heat Exchanger. But there’s more to a Boiler, than just being a Heat Exchanger. … But A Boiler generates heat through chemical reaction of the fuel, and exchanges the heat with the water to produce steam or heated water depending on the application.

How can you make a heat exchanger more efficient?

In general, the most efficient way to install a heat exchanger is to flow the fluid in a countercurrent arrangement (so that if the coolant travels from left to right and the hot fluid travels from right to left), and for shell and tube heat exchangers, The agent should enter the lowest inlet position (as shown above) …

What is difference between condenser and heat exchanger?

A condenser is a device which converts vapour into the liquid state whereas a heat exchanger is a device which is used for heat recovery also to transfer heat from two fluids. Heat exchanger only heat is transferred without phase change and heat is transferred along with the phase change in the condenser.

What is heat duty in heat exchanger?

The Heat duty can be defined as the amount of heat needed to transfer from a hot side to the cold side over a unit of time. … The equation to calculate the heat duty is normally written in two ways. One that can be used for sensible heat transferred, this means that the fluid undergoes no phase change.

Is cooling tower a heat exchanger?

A cooling tower is a specialized heat exchanger in which air and water are brought into direct contact with each other in order to reduce the water’s temperature. As this occurs, a small volume of water is evaporated, reducing the temperature of the water being circulated through the tower.

Is condenser a heat exchanger?

Condenser and Heat Exchangers: A condenser is an apparatus intended to condense vapors to a liquid state from their gaseous state. … A heat exchanger works to conduct heat from a substance of higher temperature to a substance of lower temperature without phase changes.

Are stainless steel heat exchangers better?

Stainless steel heat exchangers are more expensive than aluminum, which is lightweight and has high thermal conductivity, but due to the longevity and corrosion resistance of stainless steel, they are likely to be a much better value in the long run.

How do you calculate effective heat exchanger?

The effectiveness (ϵ) of a heat exchanger is defined as the ratio of the actual heat transfer to the maximum possible heat transfer. Qmax is the minimum of these two values i. e.

What are the two types of heat?

The three types of heat transfer Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation). Heat is usually transfered in a combination of these three types and seldomly occurs on its own.

What are different types of heat exchangers?

What are the different types of heat exchanger?Parallel-flow and counter-flow heat exchanger.Finned and Unfinned tubular heat exchanger.U-tube, single pass straight and two pass straight heat exchanger.Plate-and-frame heat exchanger.Pate-fin heat exchanger.Microchannel heat exchanger.

What are the three basic types of condensers?

There are three main types: air-cooled, evaporative, and water-cooled condensers.