Introduction to Heat Transfer

Aug 10, 2012

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Four Central Ideas of Engineering. The Dual Variables of Effort and Flowhow power flows between interacting objects, regardless of their domain (e.g. Electrical, Mechanical, Thermal, Biological, etc). Statehow systems remember the past, and which results from the time integration and storage of

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Introduction to Heat Transfer

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1. Introduction to Heat Transfer

Heat Transfer

Heat Transfer. How is energy transfer different than energy transformation?. Key Topic. Heat Transfer. The FRAME Routine. is about…. Main idea. Main idea. Main idea. What is it?. So What? (What’s important to understand about this?). How heat moves from place to place. 3 Methods:.

734 views • 13 slides

Introduction: Transfer of Heat

Introduction: Transfer of Heat. Heat . A form of energy associated with the motion of atoms or molecules. Transferred from higher temperature objects to objects at a lower temperature. . How Heat Can Be Transferred. Conduction Convection Radiation. Conduction.

516 views • 17 slides

HEAT TRANSFER

HEAT TRANSFER. Thermal energy transfer is heat moving from a warmer object to a cooler object. How is Heat Transferred?. There are THREE ways heat can move. Conduction Convection Radiation. CONDUCTION. Heat is transferred from one particle of matter to another in an object.

2.23k views • 13 slides

Heat Transfer

Heat Transfer. Heat is transferred in three basic ways: CCR. Conduction : heat transfer within materials and between objects in contact. Vibrating loose atoms transferring energy to neighbors Conductors – conduct heat well (e.g. metals: silver, copper, iron)

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Heat Transfer

Heat Transfer. Important : This chapter follows mainly on chapter 4 in Turcotte and Schubert textbook. Heat transfer: the sources. From the sun: 2x10 17 W 4x10 2 Wm -2 Derives surface processes: Water cycle Biosphere Rain Erosion. Sun. From the Earth interior: 4x10 13 W

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Heat Transfer

Temperature and heat are related but are not the same.. The atmosphere, hydrosphere, lithosphere, are made up of moving atoms. The energy in these moving atoms from higher temperature to lower temperature is called heat.. Temperature is the measurement of the average speed of the movement of atoms.

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Introduction to Heat Transfer

Introduction to Heat Transfer. Finite Difference Methods Or Computational Calculus. The Microwave Oven. Consider the problem of heating your lunch in a microwave oven Given a known heating rate, calculate the time and temperature of your lunch

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Introduction to Heat Transfer

Introduction to Heat Transfer. S. P. Vanka Professor of Mechanical Engineering. Welcome. This course is ME320, Introduction to Heat Transfer Instructor: S. P. Vanka Primary Research Interests: Fluid flow, heat transfer and computer simulations Contact: spvanka@illinois.edu , 244-8388,

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Heat Transfer

Heat Transfer. Conduction, Convection, and Radiation. Convection. Convection is heating of air around something This is a convection oven where the air becomes hot. Conduction. Conduction is when there is a heat that is there which is touching something that then becomes warm.

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Heat Transfer : Steady State Heat Transfer

Heat Transfer : Steady State Heat Transfer. Objectives. Section 6 – Thermal Analysis Module 4: Steady State Heat Transfer Page 2. U nderstand steady state heat transfer. Explore linear steady state analysis. Explore nonlinear steady state analysis. S tudy an example:

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Heat Transfer : Convection Heat Transfer

Heat Transfer : Convection Heat Transfer. Objectives. Section 6 – Thermal Analysis Module 3: Convection Heat Transfer Page 2. U nderstand the basics of convection heat transfer. C ompare natural convection with forced convection. L earn how to model density variation.

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Heat Transfer : Transient Heat Transfer

Heat Transfer : Transient Heat Transfer. Objectives. Section 6 – Thermal Analysis Module 5: Transient Heat Transfer Page 2. U nderstand the basics of transient heat transfer. Examine lumped mass systems. C ompare linear unsteady heat transfer with nonlinear unsteady heat transfer.

1.31k views • 11 slides

Heat Transfer

Heat Transfer. Muhammad Rashid Usman Institute of Chemical Engineering and Technology University of the Punjab, Lahore. Figure taken from: http://heatexchanger-design.com/2011/10/06/heat-exchangers-6/ Dated: 17-Jan-2012. Course contents. 2. Text Book [1]. Please read to know and learn.

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Heat Transfer

Heat Transfer. Convection, Conduction, and Radiation. On a chilly night, we gather around a campfire to warm our hands and feet. How is heat transferred in this example?. Radiation. Why would getting warm by a campfire be an example of radiation?

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Introduction to Heat Transfer

Introduction to Heat Transfer. 1. Kausar Ahmad Kulliyyah of Pharmacy. http://staff.iiu.edu.my/akausar. Contents. Introduction Methods of heat transfer. Transfer of Heat. Heat transfers from a region of high temperature to a region of low temperature.

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Heat Transfer

Heat Transfer. Heat Transfer. Heat always moves from a warmer place to a cooler place. Hot objects in a cooler room will cool to room temperature. Cold objects in a warmer room will heat up to room temperature. Question.

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Heat Transfer

T 1. T 2. Q. Heat Transfer. In the previous sections, we learned that heat can flow from one object to another (e.g., from the warmer to the cooler object) In this section, we investigate the details of how this heat is transferred

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Heat Transfer

Heat Transfer. Heat transfer. Everything is made of molecules. When molecules gain energy they move faster and create more heat. (The faster the molecules move the hotter they are). Evaporation. Melting. Freezing. Condensation. Solid. liquid. Gas.

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Heat Transfer

Heat Transfer. How is heat transferred from one place to another? What is moving? In mechanics energy can be transferred through a particle (e.g. a bullet) or a wave (e.g. a sound wave) In heat transfer the analogous methods are convection and conduction

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Heat Transfer Introduction

Heat Transfer Introduction. Heat Transfer Introduction. Goals : By the end of today’s lecture, you should be able to: define the mechanisms for heat transfer define Fourier's Law of heat conduction describe the differences between series resistance and parallel resistance

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