University of Alberta ANSYS Tutorials - www.mece.ualberta.ca/tutorials/ansys/CL/CAT/Coupled/Print.html Coupled Structural/Thermal Analysis Introduction This tutorial was completed using ANSYS 7.0 The purpose of this tutorial is to outline a simple coupled thermal/structural analysis. A steel link‚ with no internal stresses‚ is pinned between two solid structures at a reference temperature of 0 C (273 K). One of the solid structures is heated to a temperature of 75 C (348 K). As heat is transferred
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INTRODUCTION Worldwide postharvest fruit and vegetables losses are as high as 30 to 40% and even much higher in some developing countries. Reducing postharvest losses is very important; ensuring that sufficient food‚ both in quantity and in quality is available to every inhabitant in our planet. Proper postharvest processing and handling is an important part of modern agricultural production. Postharvest processes include the integrated functions of harvesting‚ cleaning‚ grading‚ cooling‚ storing
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CHEM161 Experiment 7: Calorimetry Introduction Calorimetry is the science of measuring heat flow‚ and heat is defined as thermal energy flowing from an object at a higher temperature to one at a lower temperature. For example‚ if a chunk of metal at room temperature is placed in a beaker of boiling water‚ the metal will absorb heat from the water until it is at the same temperature as the boiling water. Scientists also often study the heat associated with different physical and chemical changes
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SPECIFIC HEAT OF VARIOUS METALS M. L. C. G. Marasigan‚ R. R. Mella‚ J. M. M. Mendones‚ M. A. Miranda‚ R. P. Nool‚ C. P. R. M. Orpilla‚ K. L. Pascual College of Engineering‚ Adamson University Abstract THIS EXPERIMENT IS ABOUT THE SPECIFIC HEAT OF VARIOUS METALS. THE MAIN OBJECTIVES OF THIS LABORATORY ACTIVITY ARE TO DETERMINE THE SPECIFIC HEAT OF METALS AND TO COMPARE THE EXPERIMENTAL RESULT OF SPECIFIC HEAT FROM THE STANDARD VALUE. ANOTHER PURPOSE OF THIS EXPERIMENT IS TO
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THERMAL EXPANSION HEAT MYP-5 | Thermal Expansion happens a lot in everyday life. When something is heated and expands this is Thermal Expansion. The way Thermal Expansion works‚ is when it is heated the atoms expand‚ and then when it is cooled it shrinks. Several examples of Thermal expansion is the tendency of matter to change in volume in response to a change in temperature. When a substance is heated‚ its particles begin moving more and thus usually maintain a greater average separation
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SOLA 4012/9007 - Session 1‚ 2011 SOLA 4012 /9007 Grid Connected PV QUIZ week 9 –S1 2011 SOLUTIONS – Version A Other versions just had the answers moved around‚ the questions were the same. 1. (1 Mark) A module subject to shading is in a string of modules. The modules do not have bypass diodes or blocking diodes installed. The worst case power dissipation for the shaded module occurs when… a. b. c. the string is open circuited the string is short circuited reverse current flows in the string
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The schematic of an automatic cooler fan for audio amplifiers is given here. The circuit automatically switch ON the cooler fan whenever the temperature of the heat sink exceeds a preset level. This circuit will save a lot of energy because the cooler fan will be OFF when the amplifier is running on low volume. At low volume less heat will be dissipated and it will not trigger the cooler fan ON. The temperature is sensed using an NTC (negative temperature coefficient) thermistor R2. Junction of
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Introduction I am investigating factors that affect heat loss from a body. All athletes become hot during exercise and need to be aware of how fast their bodies will cool down after the exercise. In extreme conditions the continued drop of body temperature may cause hypothermia. Hypothermia is caused by the core body temperature dropping below 35degrees. This is why it is important to how quickly the body loses heat and what affects it. Heat is lost from the body in 3 different ways conduction
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Data and Observations : Part I: Insert a complete data table‚ including appropriate significant figures and units‚ in the space below. Also include any observations you made over the course of Part I. Metal Aluminum Zinc Iron Cooper Mass of metal 27.776 g 41.664 g 34.720 g 41.664 g Volume of water in calorimeter 26.0 mL 26.0 mL 26.0 mL 26.0 mL Initial temp. of water in calorimeter 25.3 degrees C 25.3 degrees C 25.3 degrees C 25.3 degree’s C Temp of hot water and the metal
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• The equilibrium law DYNAMIC EQUILIBRIUM forward A +8 reaction ""r=====~’~ reverse reaction Most chemical reactions do not go to completion. Once some products are formed the reverse reaction can take place to reform the reactants. In a closed system the concentrations of all the reactants and products will eventually become constant. Such a system is said to be in a state of dynamic equilibrium. The forward and reverse reactions continue to occur‚ but at equilibrium
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