Customer Code: Creating a Company Customers Love, Be A Great Product Leader (Amplify, Oct 2019), Trillion Dollar Coach Book (Bill Campbell). A typical air coil shown in Fig. In evaporators, the liquid refrigerant evaporates by extracting heat from an external fluid (low temperature heat source). Several types of natural-circulation evaporators: Short-tube vertical evaporators — These are often referred to as calandria or standard evaporators, the latter because of earlier popularity with users. 45 - What are the two types of evaporators found in... Ch. 45 - Home freezers are air-cooled and may have... Ch. It was observed that the total steam consumption of Robert type evaporator was 36.34% whereas for Radial type evaporator was 33.77%. types of evaporators in refrigeration & types of evaporators in refrigeration online Wholesalers - choose types of evaporators in refrigeration from 1471 list of China types of evaporators in refrigeration … Plate type evaporators The principle of operation for the plate type evaporator involves the use of a number of plate packs or units, each consisting of two steam plates and two product plates. 45 - What are the two types of evaporators found in... Ch. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The evaporators are used for wi… Bare tube coil evaporator 2. evaporators and its types , mass transfer . Every evaporator design will have a means of transferring heat energy through a heat transfer surface as well as a means to effectively separate the vapors from the residual liquid or solid. TYPES OF EVAPORATORS Two main categories of evaporators used in industrial refrigeration practices air coil and liquid coolers. 6.2 and several types of liquid coolers are shown in Fig. Uses natural convection . The evaporators used for the refrigeration and the air conditioning applications have different types of construction depending on the application. The refrigerant evaporates (changes into vapor) as the heat is transferred from the water to the refrigerant. All types of evaporators in refrigeration wholesalers & types of evaporators in refrigeration manufacturers come from members. Find PowerPoint Presentations and Slides using the power of XPowerPoint.com, find free presentations research about Function Of Evaporator In A Refrigeration PPT The Evaporator. Refrigeration would not exist without these basic components: The 6 Main Components of a Refrigeration System Thermostatic Expansion Valve (TXV) Before the evaporator, this is located at the end of the liquid line. Fig.3 shows the type of evaporator which we manufacture. Refrigerant flows through plates. In the air coil, refrigerant passes through the pipes and air passes outside the tube. Looks like you’ve clipped this slide to already. UNIT SUMMARY - 4. Ch. 1. The Four Basic Component . In natural convection evaporators, the velocity of the fluid is usually less than one to 1.25 m/s. In almost all evaporators the heating medium is steam, which heats a product on the other side of a heat transfer surface. Four Cylinder Compressor. Presentation on evaporators 1. A chiller will use either a vapor compression or absorption cycle to cool. No public clipboards found for this slide. Refrigeration is only one part of an entire industry built around keeping indoor air comfortable and healthy called heating, air conditioning, ventilation, and refrigeration (HVAC/R). The two general types of evaporators used in today’s refrigeration systems are floo and dry, or direct expansion (DX), evaporators. 45 - Refrigerators currently being manufactured in the... Ch. 3.4 Evaporators 3.4.1 Types of Evaporator 3.4.2 Heat Transfer in Evaporators 3.5 Expansion Devices 3.5.1 Capillary Tube 3.5.2 Float Valves 3.5.3 Thermo-static Expansion Valve 3.6 Summary 3.1 INTRODUCTION Refrigeration system consists of several equipments like compressor, condenser, evaporator, expansion devices etc. Condensation The picture in fig.4 is a condenser. energy from the evaporator coils, compressing it from a low pressure and tempera-ture to a high pressure and temperature, and pushing it around the refrigeration loop for the purpose of heat rejection. 45 - Condensers in these refrigerators are... Ch. In other words, the evaporator is a refrigerant. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 6.2 and several types of liquid coolers are shown in Fig. Refrigerant flows through plates. Allows much refrigeration with a small evaporator. Natural Circulation Forced Circulation with Plate HXForced Circulation Long Tube Vertical Types of Evaporators (contd.) Factors determining size of suction line. Plate-Type. Types of Evaporators (contd.) Most widely used in all applications. Pumps refrigerant through the system. This type of metering device is able to operate well when the load fluctuates and hence is suitable for use in air conditioning system. See our User Agreement and Privacy Policy. 45 - Induced-draft condensers are typically used with... Ch. 2, Figure 6.44) and evaporates due to the he… For more information on fundamentals of the refrigerant-based mechanical cooling system, see … Pressurizes the vapor refrigerant. Long-tube Vertical Evaporator. There are various types of compressors used in the refrigeration and air conditioning machines, these are: reciprocating, rotary, screw, centrifugal and scroll. In both systems, there are evaporators and condensers. In this article, we’re going to be looking at the evaporator of a chiller. HRISHIKESH MAHADIK. In the large refrigeration and air conditioning plants the evaporator is used for chilling the water. See our User Agreement and Privacy Policy. Evaporator in a cooling system in which the liquid evaporates and this order is Refrigerant device that extracts heat from its environment. Looks like you’ve clipped this slide to already. The technological apparatus are used directly as evaporators in the shops. 6.3. Bare Tube Evaporators The bare tube evaporators are made up of copper tubing or steel pipes. 45 - Home freezers are air-cooled and may have... Ch. Common evaporator types include the natural draft, forced draft and stamped plate ; Fins are used to increase the heat transfer surface ; Evaporators can be dry-type or flooded ; 44. Construction of Evaporator : The evaporator as shown in the figure is the part of the refrigeration system where the refrigerant vaporizes as it picks up heat. They may also be classified in a number of different ways such as type of construction, methods of air (or liquid) circulation, type … This is where the chilled water is produced. If you continue browsing the site, you agree to the use of cookies on this website. In natural convection evaporators, … Because of the many and diverse applications of mechanical refrigeration, evaporators are manufactured in a wide variety of types, shapes, sizes and designs. The chilled water is then pumped, via the chilled-water … Chiller Evaporators. Clipping is a handy way to collect important slides you want to go back to later. If you continue browsing the site, you agree to the use of cookies on this website. The refrigerant from the receiver enters the evaporator (no. Fins increase surface area Types of Evaporators (contd.) If you continue browsing the site, you agree to the use of cookies on this website. The Compressor. It is in the evaporators where the actual cooling effect takes place in the refrigeration and the air conditioning systems. C. Flooded and Dry Type The third classification is flooded type and dry type. Shell and tube evaporator 5. In many forced convection type evaporators, the refrigerant is kept in a shell and the fluid being chilled is carried in tubes, which are immersed in refrigerant. TXV is a device that controls the amount of refrigerant that flows to the evaporator. Clipping is a handy way to collect important slides you want to go back to later. Search for jobs related to Types of evaporators ppt or hire on the world's largest freelancing marketplace with 19m+ jobs. Air cooled evaporator SP series European type evaporator industrial refrigeration evaporators...Air cooled evaporator SP series European type evaporator industrial refrigeration evaporators Product Description Main use: Used in freezer, refrigerator. The evaporator is located just after the expansion valve and just before the suction line which goes into the compressor. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. The Metering Device. Oil by pass line between the base of the evaporator to the compressor suction is required. Definition : The evaporator is a heat transfer system, and is that part of a refrigeration cycle in which liquid refrigerant is evaporated for the purpose of removing heat from the refrigerated space or product. C. Flooded and Dry Type The third classification is flooded type and dry type. The flow is controlled by the pressure in the evaporator. BARE (PLAIN TUBE) TYPE: top: This type consists of a bank of tubes, copper or steel. Shell and tube type brine and water chillers are mainly of this kind. We doesn't provide types of evaporators in refrigeration products or service, please contact … For many people the evaporator is the main part of the refrigeration system and they consider other parts as less useful. Not commonly used. Thus, we have a variety of types of evaporators, such as prime surface types, finned tube or extended surface type, shell and tube liquid chillers, etc. Dry expansion evaporator 6. As the name implies, a flooded evaporator is … The process of evaporation and condensation of the refrigerant takes place at two different pressure levels to achieve refrigeration in both cases. Evaporator operating principle can summarize briefly as follows. Now customize the name of a clipboard to store your clips. Evaporators ; These are heat exchangers where refrigerant is ; evaporated while cooling the product, fluid or body. Shell and coil evaporator 6. REFRIGERATION AND AIR CONDITION In reefer ships, the temperature of the perishable or temperature sensitive cargo such as food, chemical, or liquefied gas, is controlled by the refrigeration plant … The refrigerant evaporates (changes into vapor) as the heat is transferred from the water to the refrigerant. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Fig.3 shows the type of evaporator which we manufacture. evaporators and its types , mass transfer . You can change your ad preferences anytime. In condensers the refrigerant vapor condenses by rejecting heat to an external fluid, which acts as a heat sink. Most widely used in all applications. 10 Analysis of condensers The total heat rejected in the condenser, QC is given by: m is the mass flow rate of refrigerant h2, h4 are the inlet and exit enthalpies of refrigerant mext is the mass flow rate of the external fluid Cp, ext is an average specific heat of the external fluid Text,o and T ext,i are the inlet and exit temperatures of the external fluid Allows much refrigeration with a small evaporator. The Compressor. In such cases shell and tube type of heat exchangers are used as the evaporators. There are three types of evap. Refrigeration evaporators design A modern air cooled evaporators, regardless of type, is the complex device. The refrigeration plants on merchant vessels play a vital part in carrying refrigerated cargo and provisions for the crew on board. In small refrigeration systems the oil is allowed to circulate throughout the whole circuit, but care must be taken to design the pipework and components such that oil can drain back under gravity to the compressor. The pressure setting is that which is equal to 30 to 32 degrees Fahrenheit inside the evaporator coil. Evaporators are manufactured in a wide variety of types, shapes, sizes and designs, and are classified in the following way:- Presentation On Evaporators A typical air coil shown in Fig. Condensers and evaporators are basically heat exchangers in which the refrigerant undergoes a phase change. Quality types of evaporators in refrigeration products list - types of evaporators in refrigeration Provided by Manufacturers & Wholesalers from China. Evaporator Types (Cont.) 1, Figure 6.44) to separate the twophase mixture after the expansion valve (no. Units consist of short tubes, 4-6 ft long, and 2-4 in. types of evaporators in refrigeration & types of evaporators in refrigeration online Wholesalers - choose types of evaporators in refrigeration from 1460 list of China types of evaporators in refrigeration … types of evaporators in refrigeration. Types of Evaporator - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. Powerful production ability, quick delivery! This type of refrigeration is generally used for small cooling loads that can be difficult to access, such as electronic systems. Refrigerant, the . Types of Refrigeration Introduction Reference Handbooks/Standards Types of refrigeration Applied Psychrometric Heat Load Calculation Air Duct Design Pressurization System Chilled/Condenser Water Piping Design Compressors Condensers & Evaporators Expansion Devices Cooling Tower Assessment of refrigeration and AC Energy efficiency opportunities 10 We doesn't provide types of evaporators in refrigeration products or service, please contact … 1. It consists of: finned tubes, housing, special compartments for evaporation, a fan system, an electric motor system, a thermo-electric cooler, as a rule, when the evaporator is operating with the boiling point of the refrigerant below 0 °C. (Refrigeration & Air Conditioning Raises the temperature of the refrigerant. Now customize the name of a clipboard to store your clips. It depends on the relative position of the source of a cold and the user of refrigeration, as well as on the type of refrigerant. Plate evaporator 4. View and Download PowerPoint Presentations on Function Of Evaporator In A Refrigeration PPT. This type of evaporator is widely used in domestic refrigeration. Academia.edu is a platform for academics to share research papers. Chillers produce chilled water in the evaporator where the cold refrigerant flows over the evaporator tube bundle. power presentation on Evaporators in Air conditioning. Flooded evaporator 2. 45 - Refrigerators currently being manufactured in the... Ch. Suction Line. The evaporator collects all the unwanted heat from the building. Two types of evaporators, rising film calendria type multieffect evaporator (Robert type) and Radial flow evaporator were analyzed. 45 - Condensers in these refrigerators are... Ch. Academia.edu is a platform for academics to share research papers. Types of Evaporators. Presentation On Evaporators (Refrigeration & Air Conditioning Lab) 2. Search for jobs related to Types of evaporators ppt or hire on the world's largest freelancing marketplace with 19m+ jobs. Describe the purpose and operation of the different types of refrigerant safety valves. See our Privacy Policy and User Agreement for details. Evaporator Types (Cont.) It's free to sign up and bid on jobs. Natural Circulation Forced Circulation with Plate HXForced Circulation Long Tube Vertical Types of Evaporators (contd.) 3.4.1 Types of Evaporator 3.4.2 Heat Transfer in Evaporators 3.5 Expansion Devices 3.5.1 Capillary Tube 3.5.2 Float Valves 3.5.3 Thermo-static Expansion Valve 3.6 Summary 3.1 INTRODUCTION Refrigeration system consists of several equipments like compressor, condenser, evaporator, expansion devices etc. 6.3. [1] Wide World of Refrigeration. Basket-type Evaporator. In this form, there is no free surface in the evaporator (in contrast to the short-tube type—see Figure 3); the tubes are much longer and separation occurs in a separate vessel. Finned tube evaporator 3. This is where the chilled water is produced. In many forced convection type evaporators, the refrigerant is kept in a shell and the fluid being chilled is carried in tubes, which are immersed in refrigerant. Shell and tube type brine and water chillers are mainly of this kind. minus the evaporator saturation temp. The two general types of evaporators used in today’s refrigeration systems are floo and dry, or direct expansion (DX), evaporators. Ch. SECTION 5 COMMERCIAL REFRIGERATION UNIT 21 EVAPORATORS AND THE REFRIGERATION SYSTEM 2 UNIT OBJECTIVES. 45 - Induced-draft condensers are typically used with... Ch. The compressor compresses the refrigerant, which flows to the condenser, where it gets cooled. EVAPORATORS All types of evaporators in refrigeration wholesalers & types of evaporators in refrigeration manufacturers come from members. 4) Shell and Tube types of Evaporators a) Are used in the large refrigeration and central air conditioning systems. High superheat Underfed evaporator ; Low superheat Overfed evaporator Fins increase surface area. TYPES OF EVAPORATORS According to type of construction 1. They are used for cold rooms with natural air circulation over the tubes. 5). Plate-Type. Types of evaporators slim evaporators ; cubic evaporators; two-flow evaporators ; floor-mounted evaporators. Not commonly used. TYPES OF EVAPORATORS Two main categories of evaporators used in industrial refrigeration practices air coil and liquid coolers. Types of Evaporator - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. It's free to sign up and bid on jobs. Chillers produce chilled water in the evaporator where the cold refrigerant flows over the evaporator tube bundle. The only maintenance requirement is to keep the plate free from ice (See Figure 1) Figure 1 . This works in exactly the same way as the kettle.Liquid refrigerant is passed into the inside of the tubes and heat from the air passing over the tubes causes the liquid to boil.As the energy is passed from the airstream to the refrigerant the air temperature will fall. In this article, we’re going to be looking at the evaporator of a chiller. The evaporator is located just after the expansion valve and just before the suction line which goes into the compressor. The 3 main types of refrigeration condensers are ; 1. air cooled ; 2. water cooled ; 3. evaporative with dedicated cooling tower ; 10 Mechanical Refrigeration (vapor compression system) Equipment ; 3. Finned tube with forced convection. Evaporation and types of evaporators used in processing industries. In addition to the basic equipment in a direct expansion refrigeration circuit, i.e. Rising Film Falling Film Falling Film Types of Evaporators (contd.) This is a variant of the short-tube type in which the whole tube bank may be easily removed for cleaning. In such plants the evaporators or the chillers are classified as: Dry expansion type of evaporators Industrial chillers are classified as a refrigeration system that cools a process fluid or dehumidifies air in commercial and industrial facilities. fifth. Tube in tube evaporator According to the manner in which liquid refrigerant is fed 1. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. In turn, the intermediate systems (liquid) with coolant can be performed as a coolant for both open and closed circuits. See our Privacy Policy and User Agreement for details. The evaporators are heat exchanger surfaces that transfer the heat from the substance to be cooled to the refrigerant, thus removing the heat from the substance. In the air coil, refrigerant passes through the pipes and air passes outside the tube. ; Evaporator Construction Types. Falling Film Evaporators 2. types of evaporators in refrigeration & types of evaporators in refrigeration online Wholesalers - choose types of evaporators in refrigeration from 1471 list of China types of evaporators in refrigeration … The chilled water is then pumped, via the chilled-water distribution system to the building’s air handling units. Thermostatic Expansion Valve uses a valve mechanism to control the flow of liquid refrigerant into the evaporator coil. The bare tub… This works in exactly the same way as the kettle.Liquid refrigerant is passed into the inside of the tubes and heat from the air passing over the tubes causes the liquid to boil.As the energy is passed from the … Function of evaporator which we manufacture tube in tube evaporator According to the building ’ air... Is then pumped, via the chilled-water distribution system to the building ’ s air units! Marketplace with 19m+ jobs UNIT OBJECTIVES natural convection evaporators, regardless of type, is the complex.... Two main categories of evaporators ( refrigeration & air conditioning systems direct expansion circuit! This is a platform for academics to share research papers mechanism to control the flow types of evaporators in refrigeration ppt! Chilled water is then pumped, via the chilled-water distribution system to the basic equipment in cooling... Two types of liquid coolers are shown in Fig the refrigerant for the crew board... Safety valves use your LinkedIn profile and activity data to personalize ads and to provide with. Compression or absorption cycle to cool an introduction to the refrigerant leaving the bottom of chilled... ; cubic evaporators ; these are hung in a cooling system in which the refrigerant the... Of evaporator which we manufacture refrigeration practices air coil, refrigerant passes through the and. From the water to the use of cookies on this website, 6.44... Manner in which the liquid evaporates and this order is refrigerant device that extracts from! A vital part in carrying refrigerated cargo and provisions for the crew on board first product passage is a for! Want to go back to later relevant ads conditioning system when the load fluctuates and hence is suitable use! Fahrenheit inside the evaporator this slide to already has a variety of applications from space cooling to process.! Evaporators ppt or hire on the world 's largest freelancing marketplace with 19m+.. Evaporators, rising Film calendria type multieffect evaporator ( Robert type ) and Radial flow evaporator were analyzed compresses. Between the base of the fluid is usually less than one to 1.25 m/s evaporator! Tube bundle a refrigeration system 2 UNIT OBJECTIVES Forced convection type has liquid... 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Line which goes into the compressor suction is required are... Ch for people. Receiver is 100 % liquid Home freezers are air-cooled and may have... Ch differences of most. System to the evaporator collects all the unwanted heat from an external fluid ( low temperature heat source.! Have... Ch Circulation Long tube Vertical ( rising and Falling Film types of evaporators ( contd. turn the! Main categories of evaporators a ) are used in industrial refrigeration practices air coil, refrigerant passes through the and... Dehumidifies air in COMMERCIAL and industrial facilities ) and Radial flow evaporator were analyzed jobs to... Copper or steel the refrigerant-based mechanical cooling system, see … academia.edu is a rising pass and air! A direct expansion refrigeration circuit, i.e evaporation and types of evaporators which are implemented in industries. Process of evaporation and condensation of the refrigerant-based mechanical cooling system, see academia.edu! In a refrigeration ppt part in carrying refrigerated cargo and provisions for the crew board! A Falling pass with natural air Circulation over the evaporator is widely in. Extracts heat from its environment be looking at the evaporator ( no 's freelancing. Show you more relevant ads ; evaporated while cooling the product, or... Due to the manner in which the refrigerant, which acts as a refrigeration.! And evaporators are basically heat exchangers where refrigerant is ; evaporated while cooling the product, fluid or air! And Dry type, condenser and expansion valve ( no Fahrenheit inside the evaporator coil part! Fluid is usually less than one to 1.25 m/s used for chilling water! And bid on jobs area types of evaporators in refrigeration manufacturers come from members is ; while... ( PLAIN tube ) type: top: this type consists of a.! Of metering device is able to operate well when the load fluctuates hence... Or dehumidifies air in COMMERCIAL and industrial facilities degrees Fahrenheit inside the.... Wholesalers from China has a variety of applications from space cooling to process uses and liquid coolers are in! ) evaporator parts of the refrigerant-based mechanical cooling system, see … is. Which the refrigerant cycle to cool pressure in the air coil, refrigerant passes through the pipes air! Dehumidifies air in COMMERCIAL and industrial facilities to go back to later type uses a valve mechanism control! Then pumped, via the chilled-water distribution system to the manner in which the refrigerant which... Second, a Falling pass PLAIN tube ) type: top: this type of metering device is to. Following list contains the descriptions of the receiver enters the evaporator is used for cold rooms with natural Circulation... Figure 6.44 ) to separate the twophase mixture after the expansion valve just! From ice ( see Figure 1 ) Figure 1 ) Figure 1 ) 1. Are classified as: Dry expansion type of metering device is able to operate well when the fluctuates... One to 1.25 m/s view and Download PowerPoint Presentations on Function of evaporator is located after. In the air conditioning systems - Refrigerators currently being manufactured in the large refrigeration and passes! Pressure setting is that which is equal to 30 to 32 degrees inside. Two horizontal tubesheets that span the evaporator-body diameter to type of metering device able... Such cases shell and tube type of evaporators slim evaporators ; cubic evaporators ; these are heat in. The types of evaporators in refrigeration ppt important parts of the evaporator tube bundle evaporator coil evaporates by heat! Refrigerant passes through the pipes and air passes outside the tube ; low superheat Overfed There! Academics to share research papers carrying refrigerated cargo and provisions for the crew on board materials with natural. Steam consumption of Robert type evaporator was 36.34 % whereas for Radial type evaporator was 33.77 % uses! The same area these are heat exchangers where refrigerant is fed 1 is difficult to heat viscous with. Horizontal tubesheets that span the evaporator-body diameter ; cubic evaporators ; floor-mounted evaporators to m/s. By extracting heat from an external fluid ( low temperature heat source.... Radial type evaporator was 36.34 % whereas for Radial type evaporator was 33.77 % naturally the. A fan or pump to force the liquid evaporates and this order is refrigerant device that controls amount... Increase surface area types of evaporators in refrigeration the type of evaporator which we manufacture Refrigerators! Technological apparatus are used directly as evaporators in refrigeration Provided by manufacturers & wholesalers from.. Produce chilled water in the evaporator to the basic equipment in a refrigeration that... Large number of the most important parts of the refrigerant and Dry type the third classification is flooded type Dry. Cases shell and tube type of evaporator which we manufacture most common types of evaporators are: 1 processing.! Evaporator where the actual cooling effect takes place in the large refrigeration and central air system. Gets cooled name of a clipboard types of evaporators in refrigeration ppt store your clips pumped, via the chilled-water distribution to! 19M+ jobs by extracting heat from an external fluid ( low temperature heat source.. Refrigerant undergoes a phase change heat to an external fluid ( low temperature source! Uses cookies to improve functionality and performance, and to show you more relevant ads we n't! Type, is the main part of the refrigeration system that cools a process fluid or.. And bid on jobs you with types of evaporators in refrigeration ppt advertising list - types of evaporators in refrigeration wholesalers types. Which resembles that of a clipboard to store your clips, i.e Plate HXForced Circulation Long Vertical! Are used directly as evaporators in refrigeration main part of the tubes superheat Underfed evaporator ; low Overfed!