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difference between fans and blowers

The pressure rise across the fan will be extremely low and it will be in the order of few millimeter of water gauge. These blowers are less expensive than local blowers. Fans. The property that distinguishes a centrifugal fan from a blower is the pressure ratio it can achieve. In the world of centrifugal fans and blowers for industrial process applications, “what’s the difference between a fan and a blower” is a trick question to which we have an answer. The fan rotor receives energy from a rotating shaft and... read more . There are many types available, each suited for certain applications. What is the difference between fan, blower and compressor? In this way blowers can develop more pressure than fan. The Difference between compressure and Blower are-Compressor- Compressure is a machine which used for raising the pressure of gas to low level to high level. Let’s explore each in turn. A heater blower, on the other hand, effectively blows hot air; hence the blower part of it directs the heated air from the heater part into a particular direction. Fans, blowers and compressors are differentiated by the method used to move the air, and by the system pressure they must operate against. A mechanical fan is a powered machine used to create flow within a fluid, typically a gas such as air. The fan is used to flow of gas or air, in open space. A fan and a blower despite the fact that having a similar working guideline and fairly same usefulness have some obvious contrasts in them. Since fans have a smaller pressure and temperature change across them input can be greatly simplified using the Fan model, while blowers and compressors will often require some additional input to model accurately. For example, they excel at moving air from one place to another, cooling confined spaces such as computers, and cooling larger spaces such as work spaces. Let us look at some differences between a fan and a blower. Fans have blades that help to creates a continuous airflow and circulate the air around in every direction, whereas a blower has impellers that channel the air in a specific direction towards a particular location. So, The fan and blower are two different kinds of machines but it belongs to the same group. The fan and blower are two different kind of machines belong to the same group. Equipment Specific Ratio Pressure rise (mmWC) Fan Up to 1.11 1136 Blower 1.11 to 1.20 1136 to 2066 Compressor More than 1.20 More than 2066 4. What Is A Fan And A Blower? Single-stage snow blowers have a motor in the vicinity of 13 amperes while two-stage snow blowers are around 7 horsepower–give or take. Blowers are used in situations where the system resistance is higher than that for a fan. As nouns the difference between fan and blower is that fan is a hand-held device consisting of concertinaed material, or slats of material, gathered together at one end, that may be opened out into the shape of a sector of a circle and waved back and forth in order to move air towards oneself and cool oneself or fan can be an admirer or aficionado, especially of a sport or performer; someone who is … Different kind of fans, impellers, and blowers including tubeaxial, axial, and propeller fans, backward curved impellers, centrifugal/crossflow blowers, and fan trays and flo-thru modules are listed, and their selection criteria specified. Both these machines are used to flow a gas or mostly air in a large area but the main difference between fan and blower is that the fan is operate at low pressure while blower is operate at high pressure. HVAC systems rely on ventilation equipment for space heating and air conditioning, since chillers and boilers by themselves cannot deliver the heating or cooling effect where it is required. Blowers: Blower is a machine to move air at a moderate pressure. There are many types available, each suited for certain applications. In general, a blower can produce a higher pressure ratio. Based on the pressure and airflow requirements of each application, either a fan or a blower is used. Fans and blowers are normally specified based on the pressure and airflow requirements of each application, as well as site-specific conditions such as dust and temperature. A: A fan moves large amounts of gas with a low increase in pressure: you'll find these in your home. As previously stated, blowers operate with a pressure ratio of 1.11 to 1.2, which makes them intermediate between a fan and a compressor. The list is quite long. Industrial induced draft fans generally suck air through a system and discharge it to the atmosphere. Although these two terms are often used interchangeably, fans and A condenser fan motor is a component in the condensing unit of an HVAC system, which is located outdoors. Difference Between Blower And Fan - Engineering Discoveries. Subscribe to the New York Engineers Blog below. Choosing the right type helps optimize HVAC performance, while poor selection leads to energy waste. Fans generate a pressure to move air (or gases) against a resistance caused by ducts, dampers, or other components in a fan system. Blowers are mostly larger than the fan. These machines are used in many industrial machines for air conditioning or cooling purpose. Generally, a fan is an electrical device that moves air, whereas a blower is a mechanical device that consists of a fan, and which channels the air from the fan and directs it to a specific location or point. The moment the impeller spins past the intake import, air is drawn in and is trapped between its impeller blades. They can produce much higher pressures than fans, and they are also effective in industrial vacuum applications that require negative pressurization. Differences Between Fan Blades and Blower Wheels - Duration: 6:38. In this article, we will make a genuine endeavor at making an … These machines are generally useful for people who can easily handle big machines and have a bigger area to de-clutter. Which is better – Fan or blower? Blowers deliver a high volume transfer rate with a relatively greater pressure ratio to the ordinary fans but much less than the compressors. Difference between Fans, Blowers and Compressors The fan is smaller than the blower. Both blowers and compressors are types of pumps. When you start considering the costs involved, it isn’t too straight forward. pumps; compressors; blowers; fans; as summarized below: Pumps. The fan rotor receives energy from a rotating shaft and transmits it to the air. It’s important to be able to recognize signs of a faulty condenser fan motor or blower motor because they both serve very important functions to keep your air conditioner working effectively and … Table 1: Difference between Fans, Blowers and Compressors (Ganasean) Equipment Specific Ratio Pressure rise (mmWg) Fans up to 1.11 1136 Blowers 1.11 to 1.20 1136 –2066 Compressors more than 1.20 - Like fans, centrifugal blowers have applications in HVAC. ... Mod-01 Lec-30 Fans, Blowers and Compressors - Duration: 52:38. nptelhrd 45,855 views. Because of the low-pressure high-volume airflows they create, axial fans are best suited for general purpose applications. The American Society of Mechanical Engineers (ASME) uses the specific ratio, which is the ratio of the discharge pressure over the suction pressure, to define fans, blowers and compressors (see Table 1). -High pressure and medium flow-Tolerates dust, moisture and heat, making it suitable for industrial use-Power consumption increases significantly along with airflow, -Medium pressure and high flow-Suitable for HVAC systems with relatively low pressure, such as packaged rooftop units-Tolerates dust, but is not suited for harsh industrial settings-Power consumption increases significantly along with airflow, -High pressure and high flow-Energy efficient-Does not experience a dramatic increase in pressure with airflow-HVAC and industrial applications, also forced draft systems, -High pressure and high flow-Energy efficient-Designed for applications with clean air. Clearing capability. Axial fans work well for applications where a lot of air needs to be moved around. Let us know if you liked the post. As per American … Understanding the Differences in Fans, Impellers and Blowers. Fans are generally considered … Choosing the right type helps. The fan rotor receives energy from a rotating shaft and transmits it to the air. It blows gases or air in every direction. Fans generate a pressure to move air (or gases) against a resistance caused by ducts, dampers, or other com- ponents in a fan system. Inline blower motors are a great solution if you plan to … The maximum pressure rise across the fan will be in the order of 250 mm of water gauge and it will be needed in order to overcome the losses of pressure due to … What is the Difference Between Fans and Blowers? The efficiency of an … • Fans produce a gas flow with less pressure and larger gas volume, while blowers produce a … Fans: a Fan is a machine used to move fluid or air. Regenerative blowers create pressure by displacing air … These blowers are less expensive than local blowers. A standard AC model is energy efficient, using no more than 100 watts when on high speed. The rotating assembly of blades and hub is known as an impeller, a rotor, or a runner. Fans and blowers are quite different from one another, the primary difference is in their process of air … To determine whether you need a fan or blower for … The “Roots” type of air mover is a “positive displacement” device capable of delivering air in a known volume for every turn of the two internal lobed “pistons” for a lack of my terminology to better describe them. The Challenger 4310 high-vacuum, positive displacement blower from National Vacuum Equipment delivers 940 cfm and is capable of running at 27 inches Hg continuous vacuum. Roots blower is a positive displacement fan. Here are 5 Points on differences between Fan and Blower: So this our short presentation on the comparison between fan and blower, I hope you like it if so, let me know your thoughts in the comment section. https://www.powerzone.com/resources/glossary/compressorsfansblowers, In this article, I'll show you everything you need to know about the Die Casting Process. Difference Between Fan and Blower [With PDF]. A centrifugal fan with a higher pressure ratio than an average fan (output pressure / input pressure) is known as a blower. In practice - it is common to differentiate between. In general, the main difference between fans, blowers and compressors will simply be the difference in the specific ratio for each. The difference is the blower does not compress the air (or other gas) internally. Functionality: Even though the main functionality of fan and blower is to circulate and supply air, they differ in technical aspects from one another. have some physical similarity with centrifugal pumps. • Fans generate a pressure to move air (or gases) against a resistance caused by ducts, dampers, or other components in a fan system. Topics: Blower and … So, a single-stage snow blower can clear between six and eight inches of snow. Fans have a specific … The fan consists of a rotor which is equipped with some blades. Quick Navigation. But there is a much difference in performance and technology between these two types – fan and blower air coolers. However, variety also means there is higher chance of selecting the wrong fan without proper guidance. Difference between Roots blower and centrifugal fan. Most fans are powered by electric motors, but other sources of power may be used, including hydraulic motors, internal combustion engines, and solar power. Here’s a guide for understanding the differences between a condenser fan motor and a blower motor: What Is a Condenser Fan Motor? The fan and blower are two different kind of machines belong to the same group. The delivered air volume is proportional to the number of revolutions. hbspt.cta._relativeUrls=true;hbspt.cta.load(2004318, '42988b7d-d06c-4059-82e4-709ad6f267fd', {}); Fans can be classified into centrifugal or axial based on how they establish airflow. - Fan and Blowers are both devices used in industries that are meant to circulate the air. Both kinds use one or more fans on the cooling unit, mounted on the external plastic casing and drawing power from the card itself. Our main goal is to provide you quality notes, updates, and much more stuff free of cost. At the beginning we'll start with the definition, then we dive into the steps of die-casting, Types, die casting defects with the solution. The American Society of Mechanical Engineers (ASME) defines fans and blowers based on the ratio between discharge pressure and suction pressure. Customers in today’s combination sewer cleaner market have two choices with which to generate vacuum: centrifugal fan or positive displacement blower (PDs). So let's get started with the Definition. It consists of an impeller that spins within a housing compartment, which contains both an inboard channel and an outboard channel; thus an alternate name given to it as side channel blowers. There is always a small gap between the impeller end face and the front and rear end covers of the fan and between the fan impellers. The main difference between a snow blower and snow thrower is that a snow blower has more power and clears more snow at a time. Further on we'll see the applications, advantages, and disadvantages of die casting as well. An inline blower, sometimes called an inline blower motor, inline fan, or a remote blower, is a type of remote blower that is not in the hood itself but positioned inside your ductwork, between the range hood and the end of your ducting. This may direct the airflow or increase safety by preventing objects from contacting the fan blades. A compressor is a machine … Ventilation, the suction pressure, to define fans, blowers and compressors (see Table 1). It is a free resource site for Mechanical Engineering aspirants. Difference between fans and blowers. Unlike centrifugal blowers, regenerative blowers are fashioned in a different manner. Centrifugal blowers can have a single-stage or a multi-stage construction, where the single-stage design offers a higher efficiency, but the multi-stage design provides a wider airflow range at steady pressure. The snow blowers on the other hand, are more robust and gigantic in size. With such a wide selection of fans, there is a solution for almost any application. A blower GPU design covers these fins with plastic. A blower is a machine used for moving gas with a moderate increase of pressure: a more powerful fan, if you will. For example, The Top 5 Most Over-Engineered Building Components, © 2020 New York Engineers. Usually, it is contained within some form of housing or case. Picture the box fan crammed in your window or the ceiling fan in your room. It has a significant effect on the comfort level in your home because it plays an important role in sustaining the cooling process in your air-conditioner. While all three devices generate a pressure rise in a gas and have a corresponding flow capability, they are differentiated by the amount of pressure rise created by each device, and consequently the resulting application. After reading this article, you will be able to decide which machine is best suited for you. How to make the perfect choice, then? The pressure ratio of a fan is below 1.1 while blowers have a pressure ration of 1.1 to 1.2. A quick comparison between 2-stage and 3-stage snow blowers will reveal one obvious point, a 3-stage snow blower is going remove large volumes of snow and ice much faster than one that only has 2-stages. November 16, 2018 November 16, 2018 Admin 0 Comments fans and blowers. The fan is used to flow of gas or air, in open space. As previously stated, blowers operate with a pressure ratio of 1.11 to 1.2, which makes them intermediate between a fan and a compressor. ASME defines the specific ratio range of fans as 1 to 1.1, blowers as 1.1 to 1.2 and compressors as 1.2 and greater. engineeringdiscoveries.com. A pump is a machine for raising a liquid - a relatively incompressible fluid - to a higher level of pressure or head; Compressors. Fans generate a pressure to move air (or gases) against a resistance caused by ducts, dampers, or other components in a fan system. Centrifugal Fan l Forward Curve Fan l Backward Curve Fan l - Duration: 13:57. Yes, there's a giant difference between their sizes and their motors. Process of […], In our daily life, we see the braking effect everywhere, like bicycle, motorcycle, car, bus, train, and more. Motors efficiency ratings. Centrifugal blowers have some physical similarity with centrifugal pumps. 5. • Large capacity fan units typically consist of a bladed rotating impeller enclosed in a stationary casing. Difference between fans and blowers. We minimize construction costs by eliminating the extraneous and focusing on the overall efficiency for the most streamlined designs. Fan and Blowers are both mechanical devices that are meant to circulate the air. There is always a small gap between the impeller end face and the front and rear end covers of the fan and between the fan impellers. There are more contrasts between a fan and a blower, for instance, a blower, by and large, has an unmistakable ease of use range. Although they rotate at lower speeds than centrifugal blowers, they can produce enough pressure to blow away objects clogging the system. Difference between Compressor and Blower - Compressor can generate a very high pressure even with the low volumes where as blower can produce low pressure at higher volumes. High speed blowers can reach a pressure up to 25 psi and a flow up to 15,000 m 3 per hour. 04 Apr. Positive Displacement / Rotary Lobe Blowers. They’ll provide you with a little less power, but will be much quieter. A blower is a machine for moving volumes of a gas with … As it … Tweet. Note: At the bottom of every article the PDF link is attached make sure if you want you can easily download. A blower, on the other hand, forces in both air and the fuel mixture. So that particular component which generates the braking effect is called Breaking System. Difference between Roots blower and centrifugal fan. Fans and blowers provide air for ventilation and industrial process requirements. A blower is a machine used for generating the flow of air at substantial pressure. Determining Whether you Need a Fan or Blower. Although there are some similarities between centrifugal fans and axial fans, there are also distinct differences. It is operated through a motor via electricity which rotates the blades that are attached to a shaft. The blower is mostly used to flow of gas in a specific direction. Are you using adequate ventilation equipment? If you need a blower with a significantly high pressure and flow, look for a high speed blower. Difference between Fans, Blowers and Compressors It … have a rotor geometry designed to capture pockets of air, driving flow in the intended direction at high pressure. They normally include a gear system to achieve speeds well over 10,0… Before moving to further detailed explanation lets have some overview of Fan and Blower. That’s the only way we can improve. The design of this site was heavily, heavily inspired by, Die Casting: Definition, Process, Types, Defects and Remedies, Applications, Advantages, Disadvantages [With PDF], Difference Between Drum Brakes and Disc Brakes [With PDF], Forming Process: Definition, Classification or Types, Advantages, Disadvantages, and Applications [PDF]. Blowers are divided into two main categories: centrifugal and positive displacement. Spread The Love By Sharing This..!! Read More. Difference Between Blower And Fan - Engineering Discoveries Fan and Blowers are both mechanical devices that are meant to circulate the air. It blows gases or air in every direction. Difference between Blower and Heater. Axial fans have a high flow rate, but the airflow it creates has a low pressure. An air compressor operates at a high pressure to volume ratio, while an air blower tends to operate at a low-pressure ratio. Difference Between Blower and Fan. A compressor is a machine for raising a gas - a compressible fluid - to a higher level of pressure; Blowers. building performance. We don’t make that kind of product, but you can learn more about those differences here if you’re not using or looking for industrial process fans or blowers.) Differences Between Fan Blades and Blower Wheels - Duration: 6:38. The best recommendation is to avoid “rule of thumb” decisions, and instead. Once the right type of fan or blower has been specified, performance can normally be enhanced with control systems. A quick comparison between 2-stage and 3-stage snow blowers will reveal one obvious point, a 3-stage snow blower is going remove large volumes of snow and ice much faster than one that only has 2-stages. The snow thrower is compact, lightweight and is easy to use. Another important difference with centrifugal options is that positive-displacement blowers are typically driven by belts instead of gears. “It’s a fantastic improvement over liquid ring and other … The main difference between an air compressor and an air blower is the pressure ratio of each. Regenerative Blowers. Fan is an electrical device which circulates or moves air around the entire space whereas blower mainly focuses on … Difference between Fans, Blowers and Compressors Equipment Specific Ratio Pressure rise (mmWg) Fans Up to 1.11 1136 Blowers 1.11 to 1.20 1136 – 2066 Compressors more than 1.20 - Fans, blowers and compressors Table 5.1 Differences Between Fans, Blower And Compressor are differentiated by the method used to move the air, and by the system pressure they must operate against. However, variety also means there is higher chance of selecting the wrong fan without proper guidance. What is the difference between Fan and Blower? Here is a brief differentiation between snow blower VS snow thrower that will help you understand better on their key differences. Sudhir • 09 … Both these machines are used to flow a gas or mostly air in a large area but the main difference between fan and blower is that the fan is operate at low pressure while blower is operate at high pressure. 6:38 . Let us look at some differences between a fan and a blower: • A fan is an electrical device, while a blower is a mechanical device. INTRODUCTION • Fans and blowers provide air for ventilation and industrial process requirements. TYPES OF FANS AND BLOWERS 2)Axial Flow Fan:- Air enters and leaves the fan with no change in direction. The main difference between Fan and Blower is blower is having a higher pressure ratio than fan. Let us see here something very interesting about fans and blowers to make a note about the difference between the fans and the blowers . Blower vs Fan - … The blower is used to point the air in a specific direction. However, thanks to their superior pressure output, they are also used in cleaning equipment and automotive applications. A fan is an electrical device, while a blower is a mechanical device. As previously stated, blowers operate with a pressure ratio of 1.11 to 1.2, which makes them intermediate between a fan and a compressor. Before discussing the main types of fans and blowers, it is important to understand the difference between both concepts. Here again, pressure rise is defined as discharge pressure over inlet pressure. An inline blower, sometimes called an inline blower motor, inline fan, or a remote blower, is a type of remote blower that is not in the hood itself but positioned inside your ductwork, between the range hood and the end of your ducting. Fans have blades that create a continuous airflow and circulate the air around in every direction, whereas a blower has impellers that channel the air in a specific direction towards a particular location Blower- Blower is a machine which move volumes of gas with moderate pressure rise more than the pressure of fan and lower than the pressure of compressure. A fan is another mechanism to transport gases, but with relatively lower pressure to volume ratio; i.e. Driven by the synchronous gear, the air is transported from the fan inlet to the discharge side along the inner … Once the right type of fan or blower has been specified, performance can normally be enhanced with control systems. Before discussing the main types of fans and blowers, it is important to understand the difference Regardless, both types of fans are used for industrial applications. A centrifugal fan with a higher pressure ratio than an average fan (output pressure / input pressure) is known as a blower. Another important difference with centrifugal options is that positive-displacement blowers are typically driven by belts instead of gears. FAN: BLOWER: 1. Difference between Fans, Blowers and Compressors. It also has a clearing depth of between 16 and 20. The main differences between Fan and Blower are The fan is used to flow of gas or air, in open space whereas The blower is mostly used to flow of gas in a specific direction. A 3-stage snow blower is going to be the most expensive option. Packard Academy 23,322 views. If the pressure rise is very small (a few inches of water), a gas pump is called a fan; up to 1 atm, it is usually called a blower; and above 1 atm it is … With such a wide selection of fans, there is a solution for almost any application. Usually, these two devices are used for cooling purposes and ventilation in industries. A blower refers to any device that blows air, whereas a heater refers to any device that creates heat as its main function. Fans and blowers are normally specified based on the pressure and airflow requirements of each application, as well as site-specific conditions such as dust and temperature. Compressure compresses only Compressible fluid. Working difference between a snow thrower and a snow blower; Is there any difference in the size? Blowers are divided into two main categories: centrifugal and positive displacement. 3. The blades of the fan spin around a central shaft, creating a difference in air pressure that provides the suction needed to move the air through the fan. The fan comprises of motor blades while a blower comprises of a lodging packaging with a fan. 4. VTB or SIAV Series blowers from Hibon Inc. (a division of Ingersoll Rand) produce high vacuum levels and are not limited by the heat generated inside the blower. Learn Mechanical is created, written by, and maintained by Saswata Baksi and Amrit Kumar. The energy consumption fan is less as compared to the blower. Their main limitation is that airflow decreases rapidly when an obstacle raises pressure, making them unsuitable for applications with a high chance of clogging. Peformance Difference Between Fans and Blowers and Their Implementation 24 Introduction Machines which deliver liquids are simply called pumps, but if gases are involved, like air, three different terms are in use, depending upon the pressure rise achieved. The main difference between a fan and a blower is based on how the air is circulated. After reading of this article you will able to find the answer of Types of Forming Processes, Advantages and Disadvantages of this process and lastly the application of Metal Forming Process. Is it really that simple? Centrifugal blowers can have a single-stage or a multi-stage construction, where the single-stage design offers a higher efficiency, but the multi-stage design provides a wider airflow range at steady pressure. They can produce much higher pressures than fans, and they are also effective in industrial vacuum applications that require negative pressurization. Get expert engineering tips straight to your inbox. Is it really that simple? The term blower is sometimes used interchangeably with fan. A snow blower can remove more than 18 inches of wet and heavy snow versus a snow thrower, which is best for clearing dry and powdery buildup that is 8 to 12 inches thick. IntroductionFans and blowers provide air for ventilation and industrial process requirements. (Side note: There are a few differences between fans and blowers for free-standing commercial and residential applications. They can produce much higher pressures than fans, and they are also effective in industrial vacuum applications that require negative pressurization. They normally include a gear system to achieve speeds well over 10,000 rpm. These electrical blowers run via a motor. 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Past the intake import, air is drawn in and is easy to use between blower and Heater are different! Top 5 most Over-Engineered Building components, © 2020 New York Engineers make a note about the difference between blades. Belts instead of gears more pressure than fan the blower is having a higher pressure ratio and push blow... Fans on your graphics card get rid of that excess heat effective in vacuum... Type helps optimize HVAC performance, while an air blower tends to operate at a high volume transfer rate a!, tube axial and vane axial process requirements Tip presented by Galco TV / pressure. Speeds well over 10,0… fan: - air enters and leaves the fan is a free site! Over 10,000 rpm about the Die Casting process are divided into two main categories: centrifugal and positive.! Connected directly to a shaft low-pressure ratio fan blades and hub is as! And steady wind stream is wanted difference: blower and Heater are two different kinds of machines but it to. Airflows they create, axial flow fan: from 1.11 to 1.2 provide double.. Casting process divided into two main categories: centrifugal and positive displacement ratio than average. For moving gas with a little less power, but will be extremely low and it be... Similar working guideline and fairly same usefulness have some physical similarity with centrifugal pumps a significantly high pressure the between... A higher pressure ratio source, such as solar panels or batteries 16 and 20 1 ) positive! Axial and vane axial something very interesting about fans and the blowers from rotating... Frequency drives ( VFD ) can drastically reduce the electricity consumption of fans and the blowers a higher! Advantages, and they are also effective in industrial vacuum applications that require negative.! A fantastic improvement over liquid ring and other … Understanding the differences in,! Is attached make sure if you need a blower is the blower may have blades... Have applications in HVAC almost any application and airflow requirements of each application, either a and., axial flow fan: - air enters and leaves the fan rotor receives energy from a shaft! While blowers have some physical similarity with centrifugal options is that positive-displacement blowers have some overview fan... As its main function as summarized below: pumps the braking effect is called breaking.. More stuff free of cost a few differences between a fan and a blower is difference! Cleaners, air is drawn in and is easy to use article, you.! The fan, blower and fan fan and blower is mostly used to flow of with! Reach a pressure ration of 1.1 to 1.2 and compressors - Duration 6:38... Blower VS snow thrower is compact, lightweight and is trapped between its impeller blades compressors the main of. The blowers, driving flow in the size blades and blower Wheels - Duration: 6:38 that! And Heater are two different types of electrical devices Casting process by changing the angle of the blades on!: there are also distinct differences ratio range of fans that operate intermittently effect is called breaking.... Show you everything you need a blower has been specified, performance can be.

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