Refrigerator ppt

After you enable Flash, refresh this page and the presentation should play. Get the plugin now. Toggle navigation.

Help Preferences Sign up Log in. To view this presentation, you'll need to allow Flash. Click to allow Flash After you enable Flash, refresh this page and the presentation should play. View by Category Toggle navigation. Products Sold on our sister site CrystalGraphics. Title: Refrigerators. Tags: motor refrigerators starter. Latest Highest Rated. The refrigerant leaves the condenser as a high pressure, high temperature liquid.

The thermostat is adjusted too high The unit contains excessive frost The unit is showing fluctuations in temperature. Whether your application is business, how-to, education, medicine, school, church, sales, marketing, online training or just for fun, PowerShow. And, best of all, most of its cool features are free and easy to use.

You can use PowerShow. Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free. Or use it to upload your own PowerPoint slides so you can share them with your teachers, class, students, bosses, employees, customers, potential investors or the world.

That's all free as well! For a small fee you can get the industry's best online privacy or publicly promote your presentations and slide shows with top rankings. But aside from that it's free. We'll even convert your presentations and slide shows into the universal Flash format with all their original multimedia glory, including animation, 2D and 3D transition effects, embedded music or other audio, or even video embedded in slides.

All for free. Most of the presentations and slideshows on PowerShow. You can choose whether to allow people to download your original PowerPoint presentations and photo slideshows for a fee or free or not at all.

Check out PowerShow. There is truly something for everyone! Related More from user. Promoted Presentations. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from.

They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. Boasting an impressive range of designs, they will support your presentations with inspiring background photos or videos that support your themes, set the right mood, enhance your credibility and inspire your audiences.

Chart and Diagram Slides for PowerPoint - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects. Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over impressively designed data-driven chart and editable diagram s guaranteed to impress any audience.

They are all artistically enhanced with visually stunning color, shadow and lighting effects. Many of them are also animated.

Refrigerators - PowerPoint PPT Presentation

Refrigerators Refrigerators A refrigerator is a device thatAfter you enable Flash, refresh this page and the presentation should play. Get the plugin now. Toggle navigation. Help Preferences Sign up Log in. To view this presentation, you'll need to allow Flash. Click to allow Flash After you enable Flash, refresh this page and the presentation should play. View by Category Toggle navigation. Products Sold on our sister site CrystalGraphics. Title: Refrigeration Basics Description: Refrigeration Basics By: Eric Nelson Basics Refrigeration is the removal of heat from a material or space, so that it s temperature is lower than that of it s Tags: basics refrigeration.

Latest Highest Rated. Title: Refrigeration Basics 1 Refrigeration Basics By Eric Nelson 2 Basics Refrigeration is the removal of heat from a material or space, so that its temperature is lower than that of its surroundings. When refrigerant absorbs the unwanted heat, this raises the refrigerants temperature Saturation Temperature so that it changes from a liquid to a gas it evaporates.

The system then uses condensation to release the heat and change the refrigerant back into a liquid. This is called Latent Heat. This cycle is based on the physical principle, that a liquid extracts heat from the surrounding area as it expands boils into a gas. To accomplish this, the refrigerant is pumped through a closed looped pipe system. The closed looped pipe system stops the refrigerant from becoming contaminated and controls its stream.

The refrigerant will be both a vapor and a liquid in the loop.After you enable Flash, refresh this page and the presentation should play.

refrigerator ppt

Get the plugin now. Toggle navigation. Help Preferences Sign up Log in. To view this presentation, you'll need to allow Flash. Click to allow Flash After you enable Flash, refresh this page and the presentation should play. View by Category Toggle navigation. Products Sold on our sister site CrystalGraphics. Title: Refrigerators. Description: An air conditioner is a refrigerator that has your house as the cold chamber and Many heat pumps can be reversed in summer to function as air conditioners Tags: air compressor conditioners refrigerators.

Latest Highest Rated. Whether your application is business, how-to, education, medicine, school, church, sales, marketing, online training or just for fun, PowerShow. And, best of all, most of its cool features are free and easy to use. You can use PowerShow.

Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free. Or use it to upload your own PowerPoint slides so you can share them with your teachers, class, students, bosses, employees, customers, potential investors or the world.

That's all free as well! For a small fee you can get the industry's best online privacy or publicly promote your presentations and slide shows with top rankings. But aside from that it's free. We'll even convert your presentations and slide shows into the universal Flash format with all their original multimedia glory, including animation, 2D and 3D transition effects, embedded music or other audio, or even video embedded in slides. All for free. Most of the presentations and slideshows on PowerShow.

You can choose whether to allow people to download your original PowerPoint presentations and photo slideshows for a fee or free or not at all. Check out PowerShow. There is truly something for everyone! Related More from user. Promoted Presentations. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from.

They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. Boasting an impressive range of designs, they will support your presentations with inspiring background photos or videos that support your themes, set the right mood, enhance your credibility and inspire your audiences. Chart and Diagram Slides for PowerPoint - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects.

Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over impressively designed data-driven chart and editable diagram s guaranteed to impress any audience.Toggle navigation.

Help Preferences Sign up Log in. Featured Presentations. What was the Roaring 20 s about? How did the automobile change Economic History to - Henry Ford invented an improved assembly line-the first conveyor InFord paid his employees five dollars a day, nearly doubling the wages. Henry Ford invented an improved assembly line-the first conveyor Graceland History - Graceland History.

Fingerprints History - Processing and Recovery Thin film of latent fingerprint contains William Herschel sought to implement his fingerprint system in Bengal jails but couldn t get Processing and Recovery Thin film of latent fingerprint contains American History - d Dow Jones industrial Average. Answer for 2. The average person who plays the lottery every day would have to live about 33, Black History Month - They don't fit the right image.

They don't have a voice to tell their story Knighted for his work in They don't fit the right image. History of American Agriculture Earths History - Sun is probably a third generation star.

Probably takes Temperature ranges of refrigeration Refrigeration cycle Relate refrigeration to air conditioning Relationship between a refrigerants pressure and its temperature Newer refrigerants used in commercial refrigeration systems Relationship between the 4 basic components of a refrigeration system Copyright Thomson Delmar Learning. Refrigerant: 1.

PPT Presentation On Magnetic refrigiration

Temperatures drop as discharge gas cools 2. Condenses as heat is rejected 3. Sub-cools before entering the TEV. Temperatures rise as liquid vaporizes and absorbs heat in the evaporator 2. Then the vapor superheats after all refrigerant has evaporated. Why or why not? Are the low side pressures and temperatures of the two systems different? Metering device Lowers the refrigerant temperature below the space temperature.

Condenser Rejects heat from the refrigerant as vapor condenses Copyright Thomson Delmar Learning. Refrigeration System Baseball Diamond The 4 components can be illustrated in the shape of a baseball diamond Half the system is high pressure Half the system is low pressure. Learn more about Scribd Membership Home.

Read Free For 30 Days. Much more than documents. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime. Chapter 01 - Refrigeration Principles. Uploaded by LaminTun. Document Information click to expand document information Date uploaded Dec 17, Did you find this document useful? Is this content inappropriate? Report this Document. Flag for inappropriate content.

Download Now. Related titles. Carousel Previous Carousel Next. Performance Simulation of a Two-evaporator Refrigerator-freezer. Jump to Page. Search inside document. Sub-cools before entering the TEV Low pressure stays the same, but. Metering device Lowers the refrigerant temperature below the space temperature 2. Evaporator Absorbs heat as refrigerant evaporates 3. Compressor Increases the refrigerant temperature above the ambient temperature 4. Mujtaba Siddiqui.

Iatan Alexandru. Nikhil Wani. Francis A. Karthik Rajan. Henrique Neiva Guimaraes.Toggle navigation. Help Preferences Sign up Log in. View by Category Toggle navigation.

refrigerator ppt

Products Sold on our sister site CrystalGraphics. Description: arrdekta institute of technology refrigeration systems guided by 1. Tags: refrigeration systems compressor refrigerator without. Latest Highest Rated. PROF Y. PROF P. Here the heat is being generally pumped from low level to the higher one is rejected at high temp. It also includes the process of reducing heat maintaining the temp.

In other words the refrigeration means a continued extraction of heat from a body whose temp is already below the temp. The refrigerant is a heat carrying medium which during their cycle in a refrigeration system absorbs heat from a low temp.

This rejection of heat from low level to higher level of temp.

refrigerator ppt

Means of extracting the heat energy from the sink, raising its level of temp. A receiver is a storage to which the heat is transferred from the high temp. The processes of the cycle are evaporation, compression, condensation expansion.

By reversing the heat engine cycle completely by changing the working agent, a refrigeration cycle is obtained. The working fluid refrigerant used in this refrigeration system readily evaporates condenses or changes alternatively between the vapour liquid phases without leaving the refrigerating plant 13 During evaporation it absorbs heat from the cold body or in condensing or cooling it rejects heat to the external hot body.

The heat absorbed from cold body during evaporation is used as its latent heat for converting it from liquid to vapour. Thus a cooling effect is created in working fluid. According to the law of thermodynamicsthis can be done only on the expenditure of energy which is supplied to the system in the form of electrical energy driving the compressor.

The vapour in this cycle is circulated through the various components of the system, where it undergoes a number of changes in its state or condition. The high pressure temp vapour refrigerant is discharged into the condenser through the delivery or discharge valve. The refrigerant while passing through the condenser, rejects its latent heat to surrounding condensing medium which is normally air or water.

Thus hot refrigerant vapour received from compressor is converted into liquid form in condenser. During evaporation process, the liquid vapour refrigerant absorbs its latent heat of vaporization from the medium which is to be cooled.

It represents a significant portion of the refrigeration industry due to the use of these units in large number.Gagandeep kaur Associate Prof. Email Id: gagan2channi gmail. Tech Electrical Engg. Introduction The mechanism used for lowering or producing low temp. Refrigeration The term refrigeration may be defined as the process of removing heat from a substance under controlled conditions.

In other words the refrigeration means a continued extraction of heat from a body whose temp is already below the temp. The refrigerant is a heat carrying medium which during their cycle in a refrigeration system absorbs heat from a low temp. This rejection of heat from low level to higher level of temp. The total amount of heat being rejected to the outside body consist of two parts:- the heat extracted from the body to be cooled.

A refrigerator is a reverse heat engine run in the reverse direction by means of external aid. Every type of refrigeration system used for producing cold must have the following four basic units Low temp. Means of extracting the heat energy from the sink, raising its level of temp. A receiver is a storage to which the heat is transferred from the high temp.

Refrigeration Systems Vapour compression refrigeration system Vapour absorption refrigeration system Thermo electric refrigeration system.

Chapter 01 - Refrigeration Principles.ppt

During evaporation it absorbs heat from the cold body or in condensing or cooling it rejects heat to the external hot body. The heat absorbed from cold body during evaporation is used as its latent heat for converting it from liquid to vapour.

Thus a cooling effect is created in working fluid. According to the law of thermodynamicsthis can be done only on the expenditure of energy which is supplied to the system in the form of electrical energy driving the compressor. The vapour compression cycle is used in most of the modern refrigeration systems in large industrial plants. The vapour in this cycle is circulated through the various components of the system, where it undergoes a number of changes in its state or condition.

Each cycle of operation consists of the four fundamental changes of state or processes: Expansion Vaporisation Compression Condensation.

The refrigerant while passing through the condenser, rejects its latent heat to surrounding condensing medium which is normally air or water. Thus hot refrigerant vapour received from compressor is converted into liquid form in condenser. Receiver The condensed liquid refrigerant from the condenser is stored in a vessel, known as receiver, from where it is supplied to the expansion valve or refrigerant control valve.

During evaporation process, the liquid vapour refrigerant absorbs its latent heat of vaporization from the medium which is to be cooled. Advantages Smaller size for a given refrigerating capacity Higher coeff. The main purpose of this type of refrigeration is to provide low temp. It represents a significant portion of the refrigeration industry due to the use of these units in large number.

For domestic preservation, the storage is generally short term. The unit is usually self contained and hermetically sealed. Due to short term storage the domestic refrigerator load is intermittent. The requirement of domestic refrigerator is that: it should be simple in construction automatic in action. Contd The common type of domestic refrigerator have a cabinet shaped with compressor motor-fan assembly, the condensed and receiver fitted in their basement.

The expansion valve evaporator coils are exposed in the storage cabinet with the piping, carrying liquid refrigerant passing through the body.