PPT-Effects of Flow Pattern and Flow Rate on The Heat Transfer

Sara Duclos Kayla Eckley Joseph McGrath Department of Chemical Engineering University of New Hampshire Introduction Objectives Methods Results Design Problem References Condensers are involved within systems in order to cool an environment with the evaporation and condensation of a fluid. Types of Heat Exchangers. l. 1- Double Pipe Heat Exchangers. Hair pin. Return bend. w,c. p. ,t. 1. w,c. p. ,t. 2. W,C. p. ,T. 1. W,C. p. ,T. 2. ID. O. D. D. J. w=.  . W=. -.  . Q=w . c. p. . (t. 2. Introduction to Convection. Convection denotes energy transfer between a surface and a fluid moving over the surface.. The dominant contribution due to the bulk (or gross) motion of fluid particles.. HEAT TRANSFER. Marks-16. C404.4-. Describe construction and working of nozzle, . governors,steam. . turbine and heat exchanger. . Heat exchanger. A . heat exchanger. is a piece of equipment built for efficient . Boundary Layer Seminar. Supervised by Dr. . Moghimi. Student: Arad . Azizi. Cooling a surface with an impinging liquid jet is an attractive technique because of its high efficiency and unsophisticated hardware . Introduction. 1,2. : . There . is a continuing need to design better . cooling . devices for electronics components because of increasing power and also . miniaturized . sizes. Heat pipes have been proven to be among the most efficient passive cooling solutions for . LO3.1: Lesson . 1. : . . Type of Heat Exchangers (. Recuperators. ). Aim. LO3: To be able to Evaluate Heat Transfer Equipment.. Learning Outcomes. At the end of this session the students will be able to…. Introduction. M. ethods. Measured Variables: inlet/outlet temperatures, heat transfer area, flow rates. Figure 1: . Condensers studied in experiment. Cold Stream Flow Rates (. m. 3. /s). :. 9.58∙10. is often used specially to denote equipment in which heat is exchanged between two process. Streams.. These heat exchanger may be classified according to:. Transfer process. 1. Direct contact. 2. indirect contact. DESCRIBE the difference in the temperature profiles for counter-flow and parallel flow heat exchangers.. DESCRIBE the differences between regenerative and non-regenerative heat exchangers.. Given the temperature changes across a heat exchanger, CALCULATE the log mean temperature difference for the heat exchanger.. Chapter 11. Sections 11.1 through 11.3. Types. Heat Exchanger Types. Heat exchangers are ubiquitous to energy conversion and utilization. They involve heat exchange between two fluids separated by a solid and encompass a wide range of flow configurations.. “L JJAM” aka “Dream Team” aka Team 3. CHBE446 02/02/18. HOT HOT HOT! . Background Theory. Conduction. Convection. Heat Exchangers. Photo Cred: Meghan. Heat Transfer. The physical process in which thermal energy is transferred from one object to another as a result of a temperature difference. Quantifying Heat Advection by Groundwater Flow in the Active Layer - Laboratory Simulations - S. Veuille 1,2 , M. Verpaelst 1,2 , S. Charbonneau 1 , K. Grandmont 1,2 , D. Fortier 1,2,3 1 Geography Present address Mechanical Engineering Department Faculty of Engineering Ekiti State University PMB 5363 Ado-Ekiti Nigeria E-mail tooni1610yahoocom Tel 2340803 621 7934 2 heat flow in a heat exchanger Nimesh Gajjar. CONVECTIVE HEAT TRANSFER. . Convection heat transfer involves . fluid motion . heat conduction. The fluid motion enhances the heat transfer, since it brings hotter and cooler chunks of fluid into contact, initiating higher rates of conduction at a greater number of sites in fluid. Therefore, the rate of heat transfer through a fluid is much higher by convection than it is by conduction. In fact, the higher the fluid velocity, the higher the rate of heat transfer..