PPT-What Is Heat?

What Will Happen If you leave a hot drink on the table and wait for a while does the drink heat up or cool off If you leave a cold drink on the same table and wait for a while . Fundamentals of heat transfer Humans are homeothermic, which means they must maintain body temperature within a narrow range in varying environmental conditions. The normal deep body temperature (cor Presented by: N.S Thomas. Department of Mechanical and Mechatronic Engineering, University of Stellenbosch. Private Bag XI, MATIELAND . 7602. , South Africa. Tel: 083 484 2893. Email: 15818705@sun.ac.za. Scales of Measurement. Celsius scale – based on where water freezes (0. . C) and where water boils (100. . C). Kelvin scale – based on the movement of particles. . Absolute Zero. At 0 K, all particle movement has ceased. It . is the policy of . CSP to . provide equipment necessary . to prevent . injury in the event of exposure to high ambient temperatures while wearing chemical protective equipment. The required personal protective equipment must always be worn to prevent chemical . Heat stress can harm or even kill people working under very hot conditions.To help employers and workers learn how to prevent heat stress, this guide summarizes the causes, symptoms, and treatment o Fins and Extended Surfaces. 1. Chapter 3c : One-dimensional, Steady state conduction (with thermal energy generation) (Section 3.5 – Textbook). 2. 3.1 Implications of energy generation. Involve a local source of thermal energy due to conversion from another form of energy in a conducting medium.. Unit 2. What is matter. ?. -Matter . is what makes up all substances, whether it is a . solid, liquid or gas. . . Molecules. , atoms and sub-atomic particles are all matter. . What’s . matter made of?. GETTING THE JOB DONE. A safe worker is a productive worker. When . worker capacity is impaired, so is productivity. Inadequate . hydration . leads to a loss in productivity. When a worker is 2% dehydrated, they’re 20% less productive. The material: conductor or insulator?. Area. Ex: a bigger window vs. a smaller one.. Thickness. Ex: heat escapes a thinner . styrofoam. cup than a thicker one.. Heat and State of Matter. Does the absorption or release of heat always cause a temp change? . 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?. is often used specially to denote equipment in which heat is exchanged between two process. Streams.. These heat exchanger may be classified according to:. Transfer process. 1. Direct contact. 2. indirect contact. Fanxu Meng, PhD, PE - Research Associate. DOE Upper-West CHP TAP. Houston Advanced Research Center (HARC). Denver, CO. October 31. th. , 2018. 1. In Today’s . Presentation. :. DOE CHP Technical Assistance Partnerships (TAP). June 6, 2017. NOAA Satellite and Information Service | National Centers for Environmental Information. Tim Boyer. Climate . change definition. Climate change refers to a statistically significant variation in either the mean state of the climate or in its variability, persisting for an extended period (typically decades or longer). Climate change may be due to . Qnet. = (. Downwelling. Shortwave + Upwelling Shortwave (albedo)) + (. Downwelling. . Longwave – Upwelling Longwave). Substituting the GEOS-5 expressions for each of these fields gives:. Sfc. .