Heat Engines Contents: Basic Concept Carnot cycle Energy flow Solving problems Whiteboards Heat Pumps Whiteboard

Jan 27, 2013

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Heat Engines Contents: Basic Concept Carnot cycle Energy flow Solving problems Whiteboards Heat Pumps Whiteboard

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Refrigeration Cycles

Refrigeration Cycles. Power Users. Refrigerators: move heat from colder space Heat pump: move heat to warmer space Both require work input. Refrigerators and Heat Pumps. Performance is expressed in term of coefficients of performance. Refrigerators and Heat Pumps. Carnot Cycle Model.

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Heat Engines Heat Pumps

Heat Engines Heat Pumps. Physics Montwood High School R. Casao. Heat Engine Cycle. A heat engine typically uses energy provided in the form of heat to do work and then exhausts the heat which cannot be used to do work.

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15-6 Refrigerators, Air Conditioners, and Heat Pumps

15-6 Refrigerators, Air Conditioners, and Heat Pumps. Clausius statement of the 2 nd Law of T…. …A perfect refrigerator, that requires no work from the low temp. region to the high temp. region is not possible. The coefficient of performance (CP), of a refrigerator is defined as …CP= Q L /W.

529 views • 9 slides

Lecture 11. Real Heat Engines and refrigerators (Ch. 4)

Stirling heat engine Internal combustion engine (Otto cycle) Diesel engine Steam engine (Rankine cycle) Kitchen Refrigerator. Lecture 11. Real Heat Engines and refrigerators (Ch. 4). Carnot Cycle. P . 1. absorbs heat. 2. T H . 4. 3. T C . rejects heat. V .

385 views • 11 slides

Lecture 5 GEOS24705 Heat engines 1: the engineers build

Lecture 5 GEOS24705 Heat engines 1: the engineers build. Outline of upcoming lectures and labs. Tues 15 th lab: chemical energy and steam engines Tues 15 th : Heat engines 1: the engineers build Th. 17 th : Heat engines 2: the scientists explain thermodynamics of heat  work

517 views • 35 slides

Heat

Heat. Chapter 44 Page 296. Brainstorm!. What can you tell me about heat?. Heat. Heat is a form of energy Heat can be measure in Joules (J) because it is a from of energy What does energy do to an object? Heat can make things move. Where is the heat travelling in these pictures?.

691 views • 38 slides

Explain why the heat flow for a home is different in the winter vs. the summer.

Explain why the heat flow for a home is different in the winter vs. the summer. 24.5 Heat Engines and the Second Law. When heat energy flows in any heat engine from a high-temperature place to a low-temperature place, part of this energy is transformed into work output. .

264 views • 16 slides

Chapter 15

Chapter 15. Thermodynamics Thermodynamics The First Law of Thermodynamics Thermal Processes that Utilize an Ideal Gas The Second Law of Thermodynamics Heat Engines Carnot’s Principle and the Carnot Engine. Thermodynamics. Thermodynamics: study of heat flow and work done on or by a system

447 views • 8 slides

First law of Thermodynamics C ontents: Basic Concept Example Whiteboards

First law of Thermodynamics C ontents: Basic Concept Example Whiteboards. First law of Thermodynamics. 1. Energy is conserved. (heat is also energy) KE and PE can be turned to heat Heat can be turned to KE and PE Car brakes Bike brakes on mountain roads Hammers hitting nails

177 views • 7 slides

HEAT FLOW & THE FIRST LAW

HEAT FLOW & THE FIRST LAW. HEAT is the FLOW of ENERGY because of a temperature difference. The units of HEAT are Joules/s or BTU/s or Calories/s BTU (British Thermal Unit) =1055 J =252.02 cal Calorie (c ) = 4.1855 J Food calorie (C) = 1 kcal =1000 cal (c) .

611 views • 28 slides

Heat Pumps An introduction

Heat Pumps An introduction. What is a Heat pump?. A heat pump is a machine which is used to heat your house in place of a conventional fossil fuel boiler. . Renewable Heat?. Heat pumps use electricity to run.

544 views • 29 slides

Ch 16 Reaction Energy

Ch 16 Reaction Energy. Standard: 7.d. Students know how to solve problems involving heat flow an temperature changes, using known values of specific heat. Objective: We will define heat, give its units, and perform specific-heat calculations. Thermochemistry.

356 views • 22 slides

Heat and Work: Part 2

Heat and Work: Part 2. Conservation of Energy Heat Engines Second Law of Thermodynamics Energy Efficiency OTEC. Energy in the News. Possible solutions to Energy Problems 1) Smart Buildings and Machines 2) Superconductive Cables 3) Fewer Phantom Loads 4) Distributed Generation

283 views • 16 slides

Heat and the First Law of Thermodynamics

Heat and the First Law of Thermodynamics. Heat as Energy Transfer Internal Energy Specific Heat Calorimetry — Solving Problems Latent Heat The First Law of Thermodynamics The First Law of Thermodynamics Applied; Calculating the Work.

1.17k views • 64 slides

Chapter 16. The second law of thermodynamics

Chapter 16. The second law of thermodynamics. Goals. Study inherently one way processes and entropy Heat engines: Otto-, Diesel, and Carnot engine The second law of thermodynamics. heat engines- cycle process. Thermodynamical efficiency. The ottocycle = gasoline engine.

543 views • 21 slides

12.4 Heat Engines

12.4 Heat Engines. Heat engines convert heat into other useful forms of energy like mechanical or electrical. A car engine is an example. Heat Engines. Mechanical Energy can be obtained from Thermal energy ONLY WHEN Heat is allowed to flow from Hot to Cold.

316 views • 5 slides

Study & Analysis of Carnot’s Model for Ideal Machine

Study & Analysis of Carnot’s Model for Ideal Machine. P M V Subbarao Professor Mechanical Engineering Department IIT Delhi. A True Concept of Blue Printing……. expansion. Heat Addition. Heat Removal. A Mathematical Model for (James Watt’s) Steam Engine. Carnot Power Cycle.

337 views • 19 slides

Calorimetry C ontents: Basic Concept Example Whiteboards Bomb Calorimeters

Calorimetry C ontents: Basic Concept Example Whiteboards Bomb Calorimeters. Calorimetry. Drop a hot piece of material into water Heat lost by hot stuff = heat gained by cold stuff. TOC. Calorimetry - Example 1 - finding c.

299 views • 13 slides

The challenges and opportunities of heat pumps on international and EU level

The challenges and opportunities of heat pumps on international and EU level Stefaan Vanderstraeten - Daikin Europe N.V. Overview. The importance of heat pumps : On International level : Heat pumps in the Climate Change debate On European level : Heat Pumps in the Energy & Climate Package

398 views • 20 slides

Variable Capacity Heat Pump RTF Sub-Committee September 28 , 2011

Variable Capacity Heat Pump RTF Sub-Committee September 28 , 2011. Mira Vowles, P.E., CEM Emerging Technology Project Manager BPA Energy Efficiency. Variable Capacity Heat Pumps (VC HP = VRF + DHP). +. Variable Refrigerant Flow Heat Pump System. Ductless Heat Pumps.

245 views • 10 slides

T c

Carnot’s Theorem. heat pump. heat engine. T h. T h. T c. T c. We introduced already the Carnot cycle with an ideal gas. Now we show:. Energy efficiency of the Carnot cycle is independent of the working substance. 1.

539 views • 12 slides

Lecture 25

Lecture 25. Comparison to Carnot’s Heat Engine Effects of Boiling and Condensing Pressure Irreversibilities in the Steam Power Cycle Rankine Cycle Improvements. Rankine – Carnot Comparison. Area under process 4-1 Heat transferred to the working fluid in the boiler (reversible)

211 views • 7 slides

More Related

Heat Engines Contents: Basic Concept Carnot cycle Energy flow Solving problems Whiteboards Heat Pumps Whiteboard

Heat Engines Contents: Basic Concept Carnot cycle Energy flow Solving problems Whiteboards Heat Pumps Whiteboard

Presentation Transcript

Refrigeration Cycles

Heat Engines Heat Pumps

15-6 Refrigerators, Air Conditioners, and Heat Pumps

Lecture 11. Real Heat Engines and refrigerators (Ch. 4)

Lecture 5 GEOS24705 Heat engines 1: the engineers build

Heat

Explain why the heat flow for a home is different in the winter vs. the summer.

Chapter 15

First law of Thermodynamics C ontents: Basic Concept Example Whiteboards

HEAT FLOW &amp; THE FIRST LAW

Heat Pumps An introduction

Ch 16 Reaction Energy

Heat and Work: Part 2

Heat and the First Law of Thermodynamics

Chapter 16. The second law of thermodynamics

12.4 Heat Engines

Study &amp; Analysis of Carnot’s Model for Ideal Machine

Calorimetry C ontents: Basic Concept Example Whiteboards Bomb Calorimeters

The challenges and opportunities of heat pumps on international and EU level

Variable Capacity Heat Pump RTF Sub-Committee September 28 , 2011

T c

Lecture 25

HEAT FLOW & THE FIRST LAW

Study & Analysis of Carnot’s Model for Ideal Machine