Heat Transfer

Nov 19, 2014

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Heat Transfer. Picture presentation. A thermal infrared image of a ball before (left) and after (right) being bounced. A thermal infrared image of a hair dryer and a fluorescent light bulb.

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sharpened left
hot brakes
hot tip
thermal infrared image
fluorescent light bulb

melodie-clay

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Heat Transfer

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Heat Transfer Picture presentation
A thermal infrared image of a ball before (left) and after (right) being bounced. A thermal infrared image of a hair dryer and a fluorescent light bulb.
A thermal infrared image of a pencil after being sharpened (left) and of hot brakes in a car (right). Notice the hot tip of the pencil.

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:.

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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.

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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.

696 views • 24 slides

HEAT TRANSFER

HEAT TRANSFER. DR.PRADIP DUTTA Department of Mechanical Engineering Indian Institute of Science Bangalore. Heat transfer. Thermodynamics. complementary. What is Heat Transfer?. “Energy in transit due to temperature difference.” Thermodynamics tells us:

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Heat Transfer

Heat Transfer. Conduction Convection Radiation. 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. Food for thought….

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Heat Transfer

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.

370 views • 5 slides

Heat Transfer : Radiation Heat Transfer

Heat Transfer : Radiation Heat Transfer. Objectives. Section 6 – Thermal Analysis Module 6: Radiation Heat Transfer Page 2. Understand the basics of radiation heat transfer. Examine surface properties linked to radiation heat exchange. Study radiation exchange between two bodies.

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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.

397 views • 4 slides

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:

1.19k views • 9 slides

Heat Transfer

Heat Transfer. Convection of heat only happens in. Solids Liquids Gases Liquids or gases. :10. Convection of heat is caused by. Density changes Attraction between particles Stirring Energy transferred through direct contact. :10.

665 views • 29 slides

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.

877 views • 13 slides

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.

1.32k views • 11 slides

Heat Transfer

Heat Transfer. The movement of heat from a warmer object to a cooler object is called heat transfer. There are 3 types of heat transfer:. Radiation. Conduction. Convection. Radiation. The transfer of heat through empty space is called radiation.

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Heat transfer

Heat transfer. Steven barron. What is the role of "loose" electrons in heat conductors?. They carry energy from one part of the conductor to another. Why does a piece of room-temperature metal feel cooler to the touch than paper, wood, or cloth?.

381 views • 12 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?

655 views • 25 slides

Heat Transfer

Heat Transfer. Complete the sentences below. a) Thermal radiation is energy transfer by __________________________________________. b) All bodies emit ________________________________________. c) The hotter a body is, the more thermal radiation _______________.

450 views • 12 slides

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

834 views • 11 slides

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.

720 views • 21 slides

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