PPT-Lesson 16 BOILING HEAT TRANSFER

DESCRIBE the process that occurs in the following regions of the boiling heat transfer curve a Nucleate boiling b Partial film boiling c Film boiling d Departure from nucleate boiling DNB. Jacob Adams. ME 340 Winter 2010. The Problem:. Long complex boiling equations. Numerous cases and different variations can be confusing. Evaluation takes a lot of time. The Solution:. A Calculator!. Makes calculations quick and easy. Two-Phase. two-phase heat transfer describes phenomena where a . change of phase. (liquid/gas) occurs during and/or due to the heat transfer process. two-phase heat transfer generally considers processes that occur at a . Introduction. The objective of evaporation is to concentrate a solution consisting of . a nonvolatile . solute and a volatile solvent. In the overwhelming majority of . evaporations the . solvent is water.. 4.1 …………. Introduction and Types of Fins. 4.2 …………. Governing Equation of Fin. 4.3 …………. Heat Dissipation through Rectangular Fin. 4.4 …………. Heat Dissipation from Infinitely Long Fin. Heat Transfer. Energy transfer from a . HOTTER. object to a . COOLER. one. Heat Transfer. Energy transfer from a . HOTTER. object to a . COOLER. one. How is heat transferred? (3 Ways). Heat Transfer. Heat Transfer . is the transport of . thermal energy. due to a temperature difference across a . medium(s. ). mediums: gas, liquid, solid, liquid-gas, solid-gas, solid-liquid, solid-solid, etc.. Thermal Energy. . Convection Heat Transfer . Why is it windy at the seaside?. Cold air sinks. Where is the freezer compartment put in a fridge?. Freezer compartment. It is put at the top, because cool air sinks, so it cools the food on the way down.. Introduction. The objective of evaporation is to concentrate a solution consisting of . a nonvolatile . solute and a volatile solvent. In the overwhelming majority of . evaporations the . solvent is water.. 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…. How does heat energy get from the Sun to the Earth?. There are no particles between the Sun and the Earth so it CANNOT travel by conduction or by convection. . ?. RADIATION. How can we relate our new understanding to the greenhouse effect?. Jacob Adams. ME 340 Winter 2010. The Problem:. Long complex boiling equations. Numerous cases and different variations can be confusing. Evaluation takes a lot of time. The Solution:. A Calculator!. Makes calculations quick and easy. Why is it windy at the seaside?. Cold air sinks. Where is the freezer compartment put in a fridge?. Freezer compartment. It is put at the top, because cool air sinks, so it cools the food on the way down.. . Eng. . Abdelrhman Essam. Free convection and Radiation. Convection . Convection Heat transfer can be classified into;. 1- forced convection . 2- free convection.. Introduction to free convection. Presented by: Michael Baldwin. 1. Paper co-authors: Ali Ghavami. 2. , S. Mostafa Ghiaasiaan. 2. , and Alok Majumdar. 3. 1: NASA MSFC, Huntsville, AL/Georgia Institute of Technology, Atlanta, GA 2: Georgia Institute of Technology, Atlanta, GA 3: NASA MSFC, Huntsville, AL.