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