A device whose purpose is the transfer of thermal energy between two fluids. Double pipe heat exchanger design software hairpin heat. Download free excel spreadsheets for engineering calculations. Emphasis is on thermohydraulic design of the heat exchanger. The heat exchange duty a llows calculation of the log mean. Double pipe heat exchanger excel calculation duration. Ya hussain 68 the overall heat transfer coefficient represents the ease. The heat exchanger area is minimized and the thermofluid. Heat exchangers are typically classified according to flow arrangement and type of construction. Design a double pipe heat exchanger with bare inner multitubes that can be used to cool engine oil with cold sea water.
Optimal design of double pipe heat exchanger structures. It is called a doublepipe exchanger because one fluid flows inside a pipe and the other fluid flows between. A practical guide for planning, selecting and designing of shell and tube exchangers takes users on a stepbystep guide to the design of heat exchangers in. The knowledge of the principles of heat transfer within the heat exchanger are needed in order to design andor evaluate the performance of a heat exchanger. Ntu relationships are given for a simple double pipe. Double pipe heat exchanger two sets of concentric pipes, two connecting tees, and a return head and a return bend.
Experimental investigation of doublepipe heat exchangers. Products double pipe heat exchangers heat transfer. This paper investigates the design optimization of double pipe heat exchanger using mathematical programming. Low cost engineering calculations software available for convection heat transfer coefficients, pipe. Double pipe heat exchangers are often used in the chemical. The heat exchanger is found in large construction to support cooling process such as fossil fuel power plant.
A double pipe heat exchanger also sometimes referred to as a pipeinpipe exchanger is a type of heat exchanger comprising a tube in tube structure. Heat exchanger design and heat transfer coefficients. A double pipe heat exchanger will typically be either counterblow or parallel flow. Cfd analysis of a double pipe heat exchanger by using.
Double pipe heat exchangers often also referred to as double pipes are characterized by a construction form which imparts a ushaped appearance to the heat exchanger. Chemical engineering calculations to assist process, plant operation and maintenance engineers. The simplified nonviscous navier stokes momentum equation is given by. Design a double pipe heat exchanger with bare inner multitubes that. The first type of a heat exchanger is called the recuperative type. The software will do all the thermal calculations involved in the design and will generate a summary of all results. The entire analysis has been done by selecting an existing design of a double pipe heat exchanger with specified flow. Heat exchanger calculation software free download heat. Heat exchanger is one of the important devices in cooling and heating process in factories, buildings, transports and others. Yau developed an empirical model for the hvac system of an operating theatre to test the design of a doublepipe heat exchanger in the air handler unit. Double pipe heat exchanger manufacturers india heat. The meanings of the four temperatures in the log mean temperature difference equation are rather self explanatory as shown in the diagram of a counterflow double pipe heat exchanger at. Double pipe heat exchanger design free to try webbusterz engineering software windows 98me2000xpvista7 version 2.
Shell and tube heat exchanger design software for thermal. The friction factor came from the blasius equation. In heat exchanger, is the appropriate average temperature difference to use in heat transfer calculations. In its simplest form, the double pipe heat exchanger, also known as a concentric pipe, hairpin, jacked pipe and jacketed utube heat exchangers, consists of a single tube mounted inside. Convective heat transfer from the outer tube wall to the outside fluid. The double pipe heat exchanger type has low heat transfer rate compared. Dhex is a software tool that is made to demonstrate the chemical design calculations of double pipe hairpin heat exchangers. The doublepipe heat exchanger is one of the simplest types of heat exchangers. A heat exchanger thermal design calculations spreadsheet.
It is called a double pipe exchanger because one fluid flows inside a pipe and the other fluid flows between that pipe and another pipe that surrounds the first. Optimum design of double pipe heat exchanger sciencedirect. This excel spreadsheet helps you design a double pipe heat exchanger also known as a concentric tube heat exchanger. This project work is based on design and thermal analysis of double pipe heat exchanger.
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. The overall heat transfer characteristics of a double pipe. Double pipe heat exchanger design heat exchanger viscosity. Heat transfer enhancement of double pipe heat exchanger using. Double pipe heat exchanger design free version download. The heat exchange duty a llows calculation of the log.
Download the excel spreadsheet templates in this article to make preliminary heat exchanger design calculations. Double pipe heat exchanger design consists of one pipe placed inside another pipe of a larger diameter with appropriate fittings to guide the flow from section to another. The entire analysis has been done by selecting an existing design of a double pipe heat exchanger with specified. The simplest heat exchanger is one for which the hot and cold fluids move in the same or. In double pipe heat exchanger design, an important factor is the type of flow pattern in the heat exchanger. Double pipe heat exchanger design step by step software. Determination of the heat transfer surface area needed for a double pipe heat exchanger design can be done using the basic heat. Heat exchanger demonstration lab double pipe he shell. Pdf design of double pipe heat exchanger kirti zare. The double pipe heat exchanger is one heat exchanger pipe inside another larger pipe for either counter flow or parallel flow pattern. A procedures manual was created for the doublepipe heat exchanger.
Double pipe heat exchanger design free download as pdf file. The overall heat transfer characteristics of a double pipe heat exchanger. The screenshot below shows a heat exchanger thermal design calculations spreadsheet that can be used to. Shell and tube heat exchangers basic calculations jurandir primo, pe 2012 pdh online pdh center. Calculate logarthmic mean temperature difference lmtd.
Pdf the double pipe heat exchanger is one heat exchanger pipe inside another larger. The goal of heat exchanger design is to relate the inlet and outlet temperatures. The design of shell and tube heat exchanger using kern method for water and steam. Heat exchanger calculation software free download heat exchanger calculation top 4 download offers free software downloads for windows, mac, ios and. Double pipe heat exchanger design dhex is a software tool that is made to demonstrate the chemical design calculations of double pipe hairpin heat. Phex is an easy to use tool which demonstrates the thermal calculations of gasketed plate heat exchangers phex is an easy to use tool which demonstrates the thermal calculations of.
Doublepipe heat exchangers, with their typical uturn shape, are one of the simplest and cheapest type of heat exchangers used in the chemical process industry. High resolution image download ms powerpoint slide. Double pipe heat exchanger design dhex is a software tool that is made to demonstrate the chemical design calculations of double pipe hairpin heat exchangers. Double pipe heat exchanger design x 64bit download. Double pipe heat exchanger design security and download notice download.
The software will do all the thermal calculations involved in the. Double pipe heat exchanger calculation does the thermal and hydraulic design of double pipe heat exchangers and estimate number of hairpin required. Heat exchangers are used to transfer heat between two sources. Preliminary analytical design double pipe heat exchanger reference calculation examples 1, 2, 11, 12 and 16 are used from the. Shell and tube heat exchangers basic calculations instructor. Mathematical calculations and numerical results of outlet temperature, total heat transfer. Double pipe heat exchanger design free download and. Calculation include pressure losses in pipe and fittings, natural.
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