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value="product"/> </form> </a> </div> </div> <div class="col-lg-4 col-md-4 col-sm-4 col-xs-12"> <div class="site-branding"> <h1 class="site-title"><a href="#" rel="home">{{ keyword }}</a></h1> </div> </div> </div> </div> </div> <div id="header-section"> <nav class="primary-menu style-4 navbar navbar-default " id="primary-menu" role="navigation"> <div class="navbar-header"> <div class="container"> <div class="collapse navbar-collapse pull-left" id="bs-example-navbar-collapse-1"> <ul class="nav dropdown navbar-nav default-nav-menu" id="menu-primary-menu"><li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-home menu-item-2639" id="menu-item-2639"><a href="#">Home</a></li> <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-2387" id="menu-item-2387"><a href="#">About</a></li> <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-2400" id="menu-item-2400"><a href="#">My account</a></li> <li class="menu-item 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U.S. Department of Energy, Thermodynamics, Heat Transfer and Fluid Flow. 1.2.1 Indirect-Contact Heat Exchangers In an indirect-contact heat exchanger, the fluid streams remain separate and the heat transfers continuously through an impervious dividing wall or into and out of a wall in a transient manner. The Cookies Statement is part of our Privacy Policy. Examples of recuperative heat exchangers are boilers, heaters, coolers, vaporizers, condensers etc. The ratio of the heat transfer surface area of a heat exchanger to its volume is called the area density β. Heat exchangers are typically classified according to flow arrangement and type of construction. Double pipe heat exchangers 3. J. R. Lamarsh, A. J. Baratta, Introduction to Nuclear Engineering, 3d ed., Prentice-Hall, 2001, ISBN: 0-201-82498-1. D. L. Hetrick, Dynamics of Nuclear Reactors, American Nuclear Society, 1993, ISBN: 0-894-48453-2. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. Heat exchangers are classified according to transfer processes into indirect- and direct-contact types. On one hand, these heat exchangers are cheap for both design and maintenance, making them a good choice for small industries. 2. DOE Fundamentals Handbook, Volume 1 and 2. ISBN: 978-2759800414. McGraw-Hill Education, 2011. both hot and cold fluid do not come into contact with each other. K. O. Ott, W. A. Bezella, Introductory Nuclear Reactor Statics, American Nuclear Society, Revised edition (1989), 1989, ISBN: 0-894-48033-2. Special Reference: John R. Thome, Engineering Data Book III. Moreover, engineers also use the logarithmic mean temperature difference (LMTD) to determine the temperature driving force for heat transfer in heat exchangers. This arrangement is popular with heat exchangers using air … Based on the design characteristics indicated above, there are several different variants of heat exchangers available. In the analysis of heat exchangers, it is often convenient to work with an overall heat transfer coefficient, known as a U-factor. Condensers, evaporators, and boilers Heat exchangers are typically classified according to flow arrangement and type of construction. In the unfinned exchanger heat can be exchanged in all directions, and the fluid can mix. 3. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. This heat exchanger … Main purpose of this project is to help the public learn some interesting and important information about engineering and thermal engineering. If so, give us a like in the sidebar. Types of heat exchangers Shell and tube type. Some of the more common variants employed throughout industry include: 1. The different types of heat exchangers are classified in three main categories. The temperature of the cold fluid exiting the heat exchanger never exceeds the lowest temperature of the hot fluid. The information contained in this website is for general information purposes only. Main purpose of this website is to help the public to learn some interesting and important information about thermal engineering. Heat exchangers are therefore also classified as: Copyright 2020 Thermal Engineering | All Rights Reserved |, What is Type of Heat Engines - Example of Heat Engine - Definition, What is Latent Heat of Vaporization - Definition, What is Latent Heat of Condensation - Enthalpy of Condensation - Definition, What is Flow Boiling – Forced Convection Boiling – Definition, What is Regenerative Heat Exchanger – Definition. A fixed-tubesheet heat exchanger has straight tubes that are secured at both ends to the tubesheets welded to the shell. By its most basic definition, an industrial heat exchanger transfers thermal energy from one fluid to another without mixing them. Addison-Wesley Pub. Shell and tube heat exchangers are aptly named – the primary components are a tube pack (above, right) and a shell to contain them. 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