Heat exchanger calculation

Selection of heat exchanger TEMA layout and number of passes. Specification of tube parameters - size, layout, pitch and material. Setting upper and lower design limits on tube length. This heat exchanger design equation is used to find the area needed for heat exchangers.

NPTEL – Chemical Engineering – Chemical Engineering Design - II.

Joint initiative of IITs and IISc – Funded by MHRD. The optimum thermal design of a shell and tube heat exchanger involves the consideration of many interacting design parameters which can be summarized as follows: Process: 1. Process fluid assignments to shell side or tube side. Manufacturer of heat transfer equipment, including Shell-and-Tube, Tube-in- Tube, cold plate, sanitary and miniature heat exchangers with sanitary and custom models for industry use.

Since the tube flow is unmixe both fluids are unmixed in the finned exchanger, while one fluid is mixed and the other unmixed in the unfinned exchanger. To develop the methodology for heat exchanger analysis and design , we look at the problem of heat transfer from a fluid inside a tube to another fluid outside. It is now clear that the problem of heat exchanger design comes down to obtaining an expression for the mean temperature difference.

Expressions for many flow con- figurations, i. We will examine these basic expressions later. Spring naar Calculations - Online calculators to perform iterative thermal rating calculations for shell and tube heat exchangers. The calculators are quite sophisticated an although they have been made user friendly, require sufficient knowledge of Heat Exchangers. Will save you an incredible amount of calculation.

This video provides a walkthrough for a sample Design Analysis homework problem for calculating the. Plate heat exchanger calculation method. To solve a thermal problem, we need to know several parameters. Further data can then be determined.

This application calculates outlet stream temperature for a counterflow heat exchanger provided inlet conditions(temperature, flow rate), surface area and overall HTC are given. The flow configuration is Concentric Tube Counter flow. If you need different calculator please post the request in the Forum.

The average temperature difference between the fluids is in general a function of the fluid properties and flow geometry as well. Overall Heat Transfer Coefficient. Heat exchanger design requires consideration of each of these factors. The overall heat transfer coefficient represents the total resistance to .

ENGINEERING DESIGN GUIDELINE). HEAT EXCHANGER SELECTION AND. Author: Rev - A L Ling. The Heat Loa Heat Exchanger and Steam Load Relationship.

Saturated steam is used to provide primary heat to a process fluid in a heat exchanger. The term heat exchanger is used to describe all . You should obtain Rp for all considered heat exchangers as a part of your pre-lab homework. Relationships between Overall Heat Transfer Coefficient and the Inlet and Outlet Fluid Temperatures. In the previous section we discussed heat transfer in a differential segment of the heat exchanger. The online version of Heat Exchanger Design Guide by Manfred Nitsche on ScienceDirect.

A BTU calculation is performed by placing temperature elements in both the inlet and outlet piping of the heat exchanger. Using the difference of these two temperatures and multiplying by the flow rate, a BTU calculation is obtained. This can be used to identify possible fouling or scaling lowering efficiency of the heat .