Chapter 1 introduction of heat transfer Ph Yiu. 1 0 obj
If you continue browsing the site, you agree to the use of cookies on this website. Sign in BTU is a heat quantity. 1. copper). Air Intrusion 6. Heat Transfer Surender Rawat. Air Infiltration 5. (by infrared radiation, or light) 62 63. As of this date, Scribd will manage your SlideShare account and any content you may have on SlideShare, and Scribd's General Terms of Use and Privacy Policy will apply. Convection 3. See our Privacy Policy and User Agreement for details. Convection. is heat transfer due to fluid or airflow. Heat Transfer Lesson PowerPoint, Convection, Conduction, Radiation, Labs www.sciencepowerpoint.com. Looks like you’ve clipped this slide to already. >>
Natural convection - movement of fluid air by difference in temp/density. Radiation heat transfer depends on the surface properties such as colors, surface orientation and fourth power of the absolute temperature (T4) of the surface. Conduction 2. The principle that heat can be transmitted through solid materials. PRINCIPLES OF HEAT. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Diffuse 3. stream
Cold objects have less. Now customize the name of a clipboard to store your clips. Temperature represents the amount of thermal energy available, whereas heat flow represents the movement of thermal energy from place to place. Heat is transferred by three methods: conduction, convection, and radiation. Radiation In addition, three secondary mechanisms can influence the heat loss/gain by affecting insulation effectiveness: 4. 1. If you continue browsing the site, you agree to the use of cookies on this website. Principles of Heat Transfer Heat loss or gain can occur through an element of the building envelope (wall, floor, or roof/ceiling) by three primary mechanisms: 1. Convectionis the flow of heat carried by moving gas or liquid. Heat exchangers Chirag Savasadiya. You can change your ad preferences anytime. Convection - transfer of heat by the movement of air or water. Basics of Heat Transfer In the simplest of terms, the discipline of heat transfer is concerned with only two things: temperature, and the flow of heat. In the case of a wall, heat is con- ducted through the layers within the wall from the warmer side to the cooler side. Clipping is a handy way to collect important slides you want to go back to later. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Mechanisms of Heat Transfer Conduction √ is the flow of heat by direct contact between a warmer and a cooler body. /Filter /FlateDecode
Any pipes, wires, ducts or services running from room to room can act as conduits for heat and spread the fire. << /Length 2 0 R
Forced convection - movement of fluid by a pump or fan. Reflected (see figure) (warm air rises, gives up heat, cools, then falls) Radiationis the flow of heat without need of an intervening medium. Sign in. Direct 2. �dz62��+��J ɉ
1�S|�����Rt��75��C\�u�9X1D@{���~k�. If you wish to opt out, please close your SlideShare account. from hot to cold when objects are in contact or connected by a good. See our User Agreement and Privacy Policy. Scribd will begin operating the SlideShare business on December 1, 2020 The basic equation for radiation heat transfer between two gray surfaces is given by: (4 ) 2 4 q =σεfA T1 −T Where: Conductionrequires the physical contact of two objects. Everything is composed of matter. 4. !��tD~��Rׇ¦�9��~��^O�� 1. Heat ALWAYS flows. Introduction to heat transfer panchal246. Heat transfer - Source of heat - Heat transfer - Steam and electricity as heating media - Determination of requirement of amount of steam/electrical energy - Steam pressure - Mathematical problems on heat transfer 1. The process of moisture becoming a. heat transfer can travel in vacuum such as solar energy. size reduction,laws involved in size reduction ,application & mills, Heat Transfer Lesson PowerPoint, Convection, Conduction, Radiation, Labs, No public clipboards found for this slide, Attended Bhaskaracharya College of Applied Sciences. 2. Fundamentals of Heat and Mass Transfer 7th Edition - Incropera.pdf - Google Drive. x�͝ۮ,�q�������i�0X��k'� I� 87y�4��:q�ZQ 6��T�V��f�����u��_����߭��翼��w�������������c�������>�:S���÷��o����ͤ��+��?�8ʝS���U[��&��_+�__(R���/�3��O���z�>��_�|���/��. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. �s�b���rbG̩M��Ց(���@��u�2m9scb6D�_O'v�Z���D�������{j�]Sbb2DiϗVl�g��d��h�s�bHU�Ŏ�[��v�D��v{HqbC|�8Ob>kcb1D)��˛�C�>Ϋ"����ى�A=��"'b6D�_�"T�8/��8X-�����{���T�i�$O�ALo��zӞ�#H�^2O�����7u�>��}Vp$��8HqbG�9}��D�XQ �D"��Ul�`%�����o�S:LL�� �zQl�O)O���K?�b>�h3���M-�4K��W�y��4PY@��Y�TG v�{HvbG�
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