🗊Презентация Refrigeration Fundamentals. Part 1. Heat and Heat Transfer

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Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №1Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №2Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №3Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №4Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №5Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №6Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №7Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №8Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №9Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №10Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №11Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №12Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №13Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №14Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №15Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №16Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №17Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №18Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №19Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №20Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №21Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №22Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №23Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №24Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №25Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №26Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №27Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №28Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №29Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №30Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №31Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №32Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №33
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Слайды и текст этой презентации

Слайд 1


Refrigeration Fundamentals Part 1 Heat and Heat Transfer
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Refrigeration Fundamentals Part 1 Heat and Heat Transfer

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What is Refrigeration?
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What is Refrigeration?

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DEFINITION ‘Refrigeration’… …is the transfer of heat from a place where it is ‘not wanted’… … to a place where it is ‘unobjectionable’.
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DEFINITION ‘Refrigeration’… …is the transfer of heat from a place where it is ‘not wanted’… … to a place where it is ‘unobjectionable’.

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HEAT REMOVAL If heat is removed from inside the container ‘faster’ than it enters...
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HEAT REMOVAL If heat is removed from inside the container ‘faster’ than it enters...

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WHAT IS HEAT? A Form of Energy It Exists ‘Everywhere’ It Exists at ‘All Temperatures’…Except… Absolute Zero (-459º F / -273º C) It can be Moved from ‘Place to Place’
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WHAT IS HEAT? A Form of Energy It Exists ‘Everywhere’ It Exists at ‘All Temperatures’…Except… Absolute Zero (-459º F / -273º C) It can be Moved from ‘Place to Place’

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WHAT ARE REEFERS? Machines that ‘Move Heat’
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WHAT ARE REEFERS? Machines that ‘Move Heat’

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‘HOW’ DOES HEAT MOVE? Warmer  Colder - ALWAYS!!!!!!!
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‘HOW’ DOES HEAT MOVE? Warmer  Colder - ALWAYS!!!!!!!

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‘HOW’ DOES IT MOVE? Heat can move three (3) ways…. 1. Conduction 2. Convection 3. Radiation
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‘HOW’ DOES IT MOVE? Heat can move three (3) ways…. 1. Conduction 2. Convection 3. Radiation

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CONDUCTION Heat moves through Solids & Liquids
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CONDUCTION Heat moves through Solids & Liquids

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CONDUCTION Heat will move Between Solids and / or Fluids in direct contact with one another
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CONDUCTION Heat will move Between Solids and / or Fluids in direct contact with one another

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CONDUCTION
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CONDUCTION

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Any other Examples of Conduction?
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Any other Examples of Conduction?

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CONVECTION Definition - Heat transfers via the circulation (movement) of a fluid. i.e….. Air is a fluid Refrigerant Liquid & Vapor are fluids Types ‘Natural’ Convection ‘Forced’ Convection
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CONVECTION Definition - Heat transfers via the circulation (movement) of a fluid. i.e….. Air is a fluid Refrigerant Liquid & Vapor are fluids Types ‘Natural’ Convection ‘Forced’ Convection

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‘NATURAL’ CONVECTION
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‘NATURAL’ CONVECTION

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‘NATURAL’ CONVECTION
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‘NATURAL’ CONVECTION

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‘FORCED’ CONVECTION
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‘FORCED’ CONVECTION

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‘FORCED’ CONVECTION
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‘FORCED’ CONVECTION

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Any other Examples of Convection?
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Any other Examples of Convection?

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RADIATION Moves in Straight Lines… like light Does not heat the air it passes through Raises temperature of the substance that absorbs it Dark colors absorb ‘more’ heat… Light colors absorb ‘less’ heat
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RADIATION Moves in Straight Lines… like light Does not heat the air it passes through Raises temperature of the substance that absorbs it Dark colors absorb ‘more’ heat… Light colors absorb ‘less’ heat

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RADIATION
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RADIATION

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RADIATION
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RADIATION

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Any other Examples of Radiation?
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Any other Examples of Radiation?

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HEAT TRANSFER SYSTEMS Usually combine ‘Conduction’ AND ‘Convection’ to move heat. i.e….
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HEAT TRANSFER SYSTEMS Usually combine ‘Conduction’ AND ‘Convection’ to move heat. i.e….

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TERMS TO REMEMBER Refrigeration Heat Box
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TERMS TO REMEMBER Refrigeration Heat Box

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HOW IS HEAT ‘MEASURED’? Four (4) Ways…. Temperature Sensible Heat British Thermal Unit (BTU) Specific Heat
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HOW IS HEAT ‘MEASURED’? Four (4) Ways…. Temperature Sensible Heat British Thermal Unit (BTU) Specific Heat

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TEMPERATURE Is the Level or Intensity of heat energy
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TEMPERATURE Is the Level or Intensity of heat energy

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TEMPERATURE The temperature inside the controlled space (container) is called….
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TEMPERATURE The temperature inside the controlled space (container) is called….

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SENSIBLE HEAT Is Heat you ‘Can Feel’
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SENSIBLE HEAT Is Heat you ‘Can Feel’

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BRITISH THERMAL UNIT Measure of the quantity (amount) of heat energy
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BRITISH THERMAL UNIT Measure of the quantity (amount) of heat energy

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SPECIFIC HEAT Amount of heat required to raise the temperature of one (1) pound of a ‘Specific Substance’ one (1) degree F.
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SPECIFIC HEAT Amount of heat required to raise the temperature of one (1) pound of a ‘Specific Substance’ one (1) degree F.

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SPECIFIC HEAT EXAMPLES Water - 1.0 Aluminum - .22 Honey - .35 Cheese - .50
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SPECIFIC HEAT EXAMPLES Water - 1.0 Aluminum - .22 Honey - .35 Cheese - .50

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TERMS TO REMEMBER Temperature Box Temperature Ambient Temperature
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TERMS TO REMEMBER Temperature Box Temperature Ambient Temperature

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Refrigeration Fundamentals. Part 1. Heat and Heat Transfer, слайд №33
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