CARNOT -founded the science of thermodynamics WILHELM E. WEBER -developed sensitive magnetometers; worked in electrodynamics and the electrical structure of matter JAMES PRESCOTT JOULE -discovered mechanical equivalent of heat HERMANN VON HELMHOLTZ -developed first law of thermodynamics‚ a statement of conservation of energy LORD KELVIN (born WILLIAM THOMSON) -proposed absolute temperature scale‚ of essence to development of thermodynamics SIR JOSEPH WILSON SWAN -developed
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First Law of Thermodynamics The first law of thermodynamics states that the energy cannot be created nor destroyed it can only be changed from one form to another. Another name for this law is the law of conservation of energy. This means that the total energy of a system plus its surroundings is constant and does not change. Energy can‚ however‚ be transferred in or out of the system and to or from the surroundings through work or heat. Conservation of Energy Energy may be defined as the
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Cengel‚ Afshin J. Ghajar McGraw-Hill‚ 2011 Chapter 1 INTRODUCTION AND BASIC CONCEPTS Mehmet Kanoglu University of Gaziantep Copyright © The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display. Objectives • Understand how thermodynamics and heat transfer are related to each other. • Distinguish thermal energy from other forms of energy‚ and heat transfer from other forms of energy transfer. • Perform general energy balances as well as surface energy balances. • Understand the
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Revised Syllabus to be implemented from the Academic Year 2010 (for the new batch only) First Year First Semester A. THEORY Field Sl. No. 1 2 3 4 5 B. 6 7 8 HU101 PH101/ CH101 M101 ES101 ENGLISH LANGUAGE & TECHNICAL COMMUNICATION Theory Contact Hours/Week L 2 3 3 3 3 0 0 1 T 0 1 1 1 1 0 0 0 P 0 0 0 0 0 3 3 3 Total 2 4 4 4 4 18 3 3 4 10 0 0 0 0 2 2 2 2 4 32 Credit Points C. 9 10 Chemistry -1 (Gr-B) / Physics – 1 (Gr-A) Mathematics-1 Basic Electrical & Electronic Engineering – 1 (GrA+GrB) ME101
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Free energy‚ naphthalene II. Introduction Enthalpy‚ H‚ is a thermodynamic property of a system. It is defined as the sum of internal energy U of a system and the product of the pressure and volume of the system: H = U+PV The PV term represents the mechanical work done on or by the system. Since we are usually more interested in changes than in absolute values‚ we could write ΔH = ΔU+PΔV Entropy‚ S‚ is an another thermodynamic property.‚ which we can consider as a measure of the disorder or
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JAMES PRESCOTT JOULE James Prescott Joule was one of the most famous physicists in England in the 17th Century. On the 24th day of December 1818‚ Joule was born near Manchester‚ England in a wealthy business-owning family with five children. As a child‚ he suffered from a spinal disorder which caused him to become shy and weak. Unlike those of his age‚ he preferred to stay indoors and learn‚ instead of playing in the field. As expected by his parents‚ James and his brother were to inherit the
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ENGINEERING MATHEMATICS Linear Algebra: Matrix algebra‚ Systems of linear equations‚ Eigen values and eigen vectors. Calculus: Functions of single variable‚ Limit‚ continuity and differentiability‚ Mean value theorems‚ Evaluation of definite and improper integrals‚ Partial derivatives‚ Total derivative‚ Maxima and minima‚ Gradient‚ Divergence and Curl‚ Vector identities‚ Directional derivatives‚ Line‚ Surface and Volume integrals‚ Stokes‚ Gauss and Green’s theorems. Differential equations: First
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MEE3223 / MEE 4206: ENGINEERING THERMODYNAMICS 2 ASSIGNMENT 1 Name: _________________________________ Student ID: _____________________________ MEE 3223/MEE 4206: ENGINEERING THERMODYNAMICS 2 ASSIGNMENT 1 GIVEN: 27/02/2015 DUE DATE: 16/03/2015 ANSWER ALL QUESTIONS Q1. A two-stroke‚ four cylinder Diesel engine operates on an ideal Diesel cycle. The engine has a capacity of 2.5 L‚ compression ratio of 18 and cutoff ratio of 2.2. At the beginning of the compression process‚ the is at 50°C
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Chemical Energetics All about enthalpy‚ calorimetry and the First Law of Thermodynamics A Chem1 Reference Text Stephen K. Lower • Simon Fraser University1 Contents Part 1: Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Part 2: Basic thermodynamics: what you need to know . . . . . . . . . . . . . . . . . . 5 Systems and surroundings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Properties
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followed by a two-stroke heat recovery steam cycle. A partial exhaust event coupled with water injection adds an additional power stroke. Waste heat from two sources is effectively converted into usable work: engine coolant and exhaust gas. An ideal thermodynamics model of the exhaust gas compression‚ water injection and expansion was used to investigate this modification. By changing the exhaust valve closing timing during the exhaust stroke‚ the optimum amount of exhaust can be recompressed‚ maximizing
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