Double pipe heat exchanger

What is a double pipe heat exchanger? Does the heat exchanger need an electrical supply? Should I replace heat exchanger? The problem can be further simplified if the equipment is assumed to be clean, which means that no scaling exists. What are the different types of heat exchanger?

A double pipe heat exchanger , in its simplest form is just one pipe inside another larger pipe.

One fluid flows through the inside pipe and the other flows through the annulus between the two pipes. The wall of the inner pipe is the heat transfer surface. Double pipe heat exchangers are also known as hairpin, jacketed pipe , jacketed U-tube and concentric pipe. As the name suggests, it consists of two pipes , one within the other. The double pipe heat exchanger is one of the simplest types of heat exchanger s. It is called double pipe heat exchanger because one fluid flo ws inside a pipe and the other fluid flo ws between.

On one han these heat exchangers are cheap for both design and maintenance, making them a good choice for small industries. The temperature gradient or the differences in temperature facilitate this transfer of heat.

Review the following: concept of the double-pipe heat exchanger , the overall heat transfer coefficient, logarithmic mean temperature difference and purpose and operation of steam traps. Calculate the heat transfer area of the double pipe heat exchanger in the lab. Base your calculation on the outside area of the inside pipe. They have a particular advantage when close temperature approaches are needed or in high pressure applications. Although the necessary equations for heat transfer and the pressure drop in a double pipe heat exchanger are available, using these equations the optimization of the system cost is laborious.

Heat exchangers are used in industrial processes to recover heat between two process fluids. A device whose purpose is the transfer of thermal energy between two fluids. CFD modeling of heat exchanger , Flow in a double pipe heat exchanger.

Fluid flow and Heat Transfer analysis, ANSYS Fluent Tutorial - Duration: 48:09. Double Pipe Heat Exchanger Manufacturers and exporter in India having good experience providing solution of your heat transfer technolgy INDIA. Although they are simple and cheap, their low efficiency coupled with the high space occupied in large scales, has led modern industries to use more efficient heat exchangers like shell and tube. They are commonly used in industry.

This product is designed to do thermal calculations and design for this type of heat exchangers. Description: The DW ( double wall) version of the Armstrong Flo-Rite-Temp Instantaneous Water Heater uses a double wall tube to provide positive separation of the steam and water in the heat exchanger. A concentric tube or double pipe heat exchanger is one that is composed of two circular tubes. Convective heat transfer from the outer tube wall to the outside fluid.

The simplest heat exchanger is one for which the hot and cold fluids move in the same or opposite directions in a concentric tube (or double - pipe ) construction. Design a double pipe heat exchanger with bare inner multi-tubes that can be used to cool engine oil with cold sea water.

The pressure drop calculated for shell and tube heat exchangers is that across the bank of tubes for the tubeside fluid.