PPT-Introduction INSOLATION AND HEAT BALANCE

Sun is the main source of energy for Earth Radiation of solar ray is main source of energy for Atmosphere Diameter of sun 1382400 kms 109 times more than earth Velocity of electro magnetic short waves 297600 km second. 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 (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture. 18. Today’s. . lecture. Solution to . in-class. problem. (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture 20. Last Lecture . Energy Balance . Fundamentals. 2. Substituting for . (Chaps 8 and 10). Main Points:. • . Small cyclic variations in the earth’s orbital characteristics affect the distribution of solar radiation on earth that, in turn, initiate the advance and retreat of ice sheets over the last 1M years.. partitioning of the . available energy at the . E. arth’s surface varies . widely by geographic location, land surface type, exposure, soil properties, and available moisture. The . surface energy . (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture. 18. Today’s. . lecture. Solution to . in-class. problem. (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture 20. Last Lecture . Energy Balance . Fundamentals. 2. Substituting for . (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture 19. Web Lecture 19. Class Lecture 17 – Tuesday 3/8/2011. (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture. 17. Today’s. . lecture. Energy . Balance. Fundamentals. Transport Processes. Outline. Class Policies. Introduction . Review. Course Assessment. 3 Long Exams . 60%. Final Exam . 20%. 3 Machine Problems . 15%. Classwork . 5%. Policies to Remember. Submit . of Change I. So far…. Outline. Heat Transfer Mechanisms. Conduction Heat Transfer. Convection Heat Transfer. Combined Heat Transfer. Overall Shell Heat Balances. Heat Equations of Change. 6. Heat Equations of Change. Which will create the longest shadow?. X. ZENITH. Which . noon-time sun in New York State has . the greatest angle of insolation?. Z. In the diagram at left, an observer in New York State “sees” the sun at three different noon-times during the course of a year (X, Y, and Z).. HEAT ENERGY TRANSFER AND AIR TEMPERATURE As we have seen, Earth’s Weather and Climate are the results of the intricate interrelationships between the Earth and the Sun, and between the components of our Atmosphere and ATMOSPHERE Composition of the Atmosphere The atmosphere is comprised of a variety of gases: Major Constituents (99%): Nitrogen (N): 78% Oxygen (O 2 ): 21% Trace Constituents: Other: 1%