MP3003/AE3003 Heat Transfer Semester 1‚ AY 2012-2013 (9) Heat Exchangers by Assoc Prof Leong Kai Choong School of Mechanical and Aerospace Engineering Read Chapter 11 of the textbook before these lecture slides © Dr. K.C. Leong‚ 2006 Lecture 2:Radiation & Conservation of Energy Requirement Learning Objectives At the end of these lectures‚ you should be able to: • recognise numerous types of heat exchangers‚ and classify them‚ • develop an awareness of fouling on surfaces‚ and determine
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in this report is heat transfer in a concentric tube heat exchanger. A heat exchanger is a device used to transfer heat from a hot fluid to a colder fluid. Heat exchangers are widely used in the petroleum industry for various reasons. Some of the most important reasons are theta heat exchangers increase the process efficiency‚ conserve energy‚ reduce maintenance and provide employee safety among many other reasons. The main objectives of the lab study were to determine the heat transfer rate‚ the
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Abstract Different substances react in various ways when exposed to heat. The amount of energy necessary to heat a certain amount of water by one degree is different than that of another liquid or substance. The technical term used to determine this characteristic is called heat capacity or specific heat capacity. The purpose of this experiment is to find the heat capacity of water‚ orange juice‚ and olive oil. A couple of very specific equipment is needed in order to complete this experiment
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mixture‚ and (c) the density of the mixture. 3 2. A piston–cylinder device contains 0.85 kg of refrigerant-134a at 10°C. The piston that is free to move has a mass of 12 kg and a diameter of 25 cm. The local atmospheric pressure is 88 kPa. Now‚ heat is transferred to refrigerant-134a until the temperature is 15°C. Determine (a) the final pressure‚ (b) the change in the volume of the cylinder‚ and (c) the change in the enthalpy of the refrigerant-134a. 3. Determine the specific volume of superheated
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Activity 33 PS-2826 Latent Heat of Fusion Thermodynamics: phase change‚ latent heat of fusion‚ melting Qty 1 1 1 1 1L 0.5 L 1 Equipment and Materials PASPORT Xplorer GLX Fast-Response Temperature Probe (included with GLX) Basic Calorimetry Set (1 calorimeter cup) Balance Water‚ about 15 degrees warmer than room temperature Ice‚ crushed Towel Part Number PS-2002 PS-2135 TD-8557 SE-8723 Purpose The purpose of this activity is to determine the amount of thermal energy needed to change a specific
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temperature above 35*C‚ hot air in work place. Humidity Directly affected humid outdoor conditions‚ excessive of humidity above 80%‚ steam or heat producing source or equipment‚ completely wet skin condition of workers. Heat Radiation Working under direct sunlight‚ sources / heat generating facilities (e.g. fire‚ welding‚ hot surfaces and machinery) in close proximity to workers. Workload Heavy work load‚ carrying
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The Little Heat Engine: Heat Transfer in Solids‚ Liquids and Gases The question now is wherein the mistake consists and how it can be removed. Max Planck‚ Philosophy of Physics‚ 1936. While it is true that the field of thermodynamics can be complex‚1-8 the basic ideas behind the study of heat (or energy) transfer remain simple. Let us begin this study with an ideal solid‚ S1‚ in an empty universe. S1 contains atoms arranged in a
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The Process of Paradoxical Heat Sensation Vy Tran West Covina High School Abstract The following research study examined the effects of using a warm stimulus cold stimulus instead of a hot stimulus and a cold stimulus to perform a sensation known as paradoxical heat. In the process of paradoxical heat sensation‚ a hot and cold stimulus is synchronically stimulated giving off a feeling we believe is very hot but is actually two stimuli activating together. The
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Heat of Formation of Magnesium Oxide Objetive: To determine the heat formation of MgO (Magnesium Oxide) using Hess’s Law‚ which states the heat within a chemical reaction is independent of the pathway between the initial and final states. Introduction: Chemical reactions require heat energy to complete‚ called an endothermic reaction‚ or produce heat energy‚ and thus called an exothermic reaction. The heat energy produced by such reactions can be measured using a calorimeter‚ a piece
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Joule Heat John Doe 4/3/2014 Introduction The objective of this lab is to learn that whenever there is an electrical current in a conductor‚ there is some electrical energy that is converted into heat energy. The heat generated in an electrical circuit is commonly referred to as joule heat. Sir James Joule studies of these separate phenomena lead him to the discovery of the proportionality constant known as the Joule equivalent of heat‚ denoted by J. The Joule equivalent of heat is the amount
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