Fundamentals of Heat and Mass Transfer 7th Edition - Incropera.pdf - Google Drive. Radiation In addition, three secondary mechanisms can influence the heat loss/gain by affecting insulation effectiveness: 4. >> If you wish to opt out, please close your SlideShare account. 2. 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. Convectionis the flow of heat carried by moving gas or liquid. See our Privacy Policy and User Agreement for details. Looks like you’ve clipped this slide to already. Some metals, in particular, conduct heat very efficiently (e.g. Conduction 2. Scribd will begin operating the SlideShare business on December 1, 2020 is heat transfer due to fluid or airflow. Heat exchangers Chirag Savasadiya. Heat is transferred by three methods: conduction, convection, and radiation. Air Intrusion 6. (warm air rises, gives up heat, cools, then falls) Radiationis the flow of heat without need of an intervening medium. Temperature represents the amount of thermal energy available, whereas heat flow represents the movement of thermal energy from place to place. 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�>��_�|���/��. In the case of a wall, heat is con- ducted through the layers within the wall from the warmer side to the cooler side. /Filter /FlateDecode  Cold objects have less. Any pipes, wires, ducts or services running from room to room can act as conduits for heat and spread the fire.  Everything is composed of matter. << /Length 2 0 R 1.  BTU is a heat quantity. You can change your ad preferences anytime. PRINCIPLES OF HEAT. Clipping is a handy way to collect important slides you want to go back to later. Reflected (see figure) heat transfer can travel in vacuum such as solar energy. Introduction to heat transfer panchal246. Mechanisms of Heat Transfer Conduction √ is the flow of heat by direct contact between a warmer and a cooler body. Heat Transfer Surender Rawat. 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. �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� �C̫��~�-��oo*�Ӫ�v��i��8HrbG���k}�V�������Zs�C��K�����HQO"�q���ӿ��)�q���Ď�d{�Jt1���d]�y_{����@�����N숳D"� �� QA�j�Ql��x=Dh����K�A�����A#�0��ԇ~�������/y�8X�ߪ�Ql����c3��$*��J ʼn��/L"��XQA.� ��� y��K_*�s�HrbG�&6?5'30�b��9D��y�H;��� ��T�"~lZ}�����w]��M}�[��V]yVi��C�!B��W]yV�N��E�W]yV���� If you continue browsing the site, you agree to the use of cookies on this website. Forced convection - movement of fluid by a pump or fan. from hot to cold when objects are in contact or connected by a good. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Natural convection - movement of fluid air by difference in temp/density. Conductionrequires the physical contact of two objects. 1. Sign in The principle that heat can be transmitted through solid materials.  The process of moisture becoming a. Convection - transfer of heat by the movement of air or water. Learn more. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 1 0 obj (by infrared radiation, or light) 62 63. Air Infiltration 5. Convection. Chapter 1 introduction of heat transfer Ph Yiu. %���� %PDF-1.4  Heat ALWAYS flows. Radiation - flow of energy in the form of electromagnetic waves (light, ultraviolet, infrared heat). 4. Now customize the name of a clipboard to store your clips. !��tD~��Rׇ¦�9��~��^O�� Heat Transfer Lesson PowerPoint, Convection, Conduction, Radiation, Labs Radiation heat transfer depends on the surface properties such as colors, surface orientation and fourth power of the absolute temperature (T4) of the surface. If you continue browsing the site, you agree to the use of cookies on this website. 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. The basic equation for radiation heat transfer between two gray surfaces is given by: (4 ) 2 4 q =σεfA T1 −T Where: 1. Direct 2. �dz62��+��J ɉ 1�S|�����Rt��75��C\�u�9X1D@{���~k�. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Convection 3. 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. Diffuse 3. See our User Agreement and Privacy Policy. Sign in. copper). stream 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.