what is heat sink ?

1 Answer

Answer :

Heat sink transfer the heat from any chip or any electronics equipment to the surrounding (generally it air). Heat sink reduce heat on equipment. It may be use with LED or any equipment which generating heat . Heat reduces efficiency in most of the cases so we use heat sink.

Related questions

Description : use of heat sink.

Last Answer : Uses of heat sink: i. It is used to avoid thermal runaway in electronic circuits. ii. Use to transfer heat generated by a mechanical or an electronic device to the surroundings. iii. Use ... the contact surface between heat sink and air. iv. Used to dissipate the amount of heat generated.

Description : How to choose a sink for your kitchen?

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Description : The unit heat rate characteristic of a thermal power unit shows :  (A) Heat input per kWh of output versus the megawatt output of unit  (B) Heat input per kW of output versus the megawatt output ... hour output of unit  (D) Heat input per kW of output versus the megawatt hour output of unit

Last Answer : The unit heat rate characteristic of a thermal power unit shows : Heat input per kWh of output versus the megawatt output of unit 

Description : Is it ok to walk downtown with my umbrella open to block the heat from the sun?

Last Answer : I don’t see why it wouldn’t be. I saw a news article this morning about the heat wave that showed numerous people doing that. That’s a perfectly valid function of a portable umbrella even if it’s less common nowadays than it used to be.

Description : How do you beat the heat without AC?

Last Answer : Taking a cold shower about every hour, putting on thin cotton clothes while still wet. Or taking a cool shower with my clothes on. The dampness catches every little whisper of a breeze that comes through.

Description : Can heat aggravate anxiety?

Last Answer : Sure. Anything that makes you uncomfortable, especially if it seems difficult to get away from. Less clothing, less covers, open windows, fans, air conditioning, cold showers.

Description : What are some things that be killed by by high heat and what can't be killed by freezing?

Last Answer : How cold and how hot? Absolute zero? 10 million degrees C.? You can kill bed bugs if you get the house hot enough.

Description : Heat isn't coming from the radiator even though it should be on?

Last Answer : It may require bleeding Usually the landlord is responsible for repair to electrical appliances, He has a legal obligation to keep the apartment in reasonable condition and repair.

Description : How can I heat the house if the electricity goes out?

Last Answer : We have the same concerns here in Upstate NY. My mother found a catalytic heater run by propane for a christmas present. Haven’t had to try it yet but it’s coming out for this storm.

Description : What are the best inexpensive blinds to block out heat and reduce power bill?

Last Answer : Cheaper than blinds: In the auto section of Wal-mart, you can buy “cut to size” auto window tint cling. It works very well, can be taken down & rolled up when you want to let in more light and takes up no space, so whatever window coverings you use will still look nice.

Description : What does heat in a muscle mean?

Last Answer : CALL THE DOCTOR!

Description : What are the advantages and disadvantages of forced air heat, vs. hot water, vs. steam?

Last Answer : With forced air, you can install ducts of sufficient size so that they can share cooling duty in the Summer, but some people find them drafty. I think circulating hot water is easier to plumb ... is necessary.) The main thing is to install a very efficient furnace, and to insulate properly.

Description : Have you turned on the heat?

Last Answer : Nope. The A/C is still on at my house!

Description : Why can we can see heat rising?

Last Answer : I was JUST wondering this yesterday! And, why can you also see the shadow of heat, too?

Description : I am really really hot (temperature wise, I'm not that conceited) and am constantly sweating. How can I lower my body heat throughout those toasty summer days?

Last Answer : Go to the mall.

Description : What is your favorite way to beat the heat?

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Description : Is Heat Lightning harmful?

Last Answer : Please define “heat lightning”. Then I’d be more than happy to answer your question. I have found that people have different definitions of this term. Do you mean lightning that occurs with no thunder? Or do you mean something else?

Description : How to Calm a Cat in Heat

Last Answer : How to Calm a Cat in Heat If you have a female pet cat, expect that she will go in heat a few times a year. This is call the estrus cycle, and it happens at least three times a year for two ... you help her cope through these periods. Try any of these tactics, and this won't be a problem anymore.

Description : How to Treat Heat Stroke

Last Answer : How to Treat Heat Stroke For people who love going out in the sun, summer is the best season to play outdoors. With the many activities to do, most of us forget to take precautions when ... . Heat stroke is very common during the summer. Dress comfortably and keep yourself hydrated when going out.

Description : How to Stay Cool in a Heat Wave

Last Answer : How to Stay Cool in a Heat Wave A heat wave may last for a few days to a few weeks and may happen with extreme humidity. Though you can't prevent heat waves, there are things you can do to ... your home. There are a lot of alternatives you can do to keep your home and your family heatwave safe.

Description : How to Heat a Greenhouse

Last Answer : How to Heat a Greenhouse A greenhouse is a great way to maintain a garden and have a green spot in your household all year long. However, keeping a greenhouse means that you need to monitor the ... or in a protected place. A small fan that will circulate air over the thermostat is also recommended.

Description : How to Install Radiant Heat Flooring ?

Last Answer : How to Install Radiant Heat Flooring There are many ways to heat up a home. Some people use space heaters and radiators, but spreading the heat unevenly around a living space can be quite uncomfortable. To ... , you can save a lot on your heating bills and give your home a new sense of warmth.

Description : Heat Transfer Software

Last Answer : The process of heat transfer is used in many industries - the scientific industry, engineering industry and every industry you can possibly think of that uses thermal heat. Because of this, there is a need ... group, so you won't have to go through the hassle of copying information down for others.

Description : Heat Transfer Machines

Last Answer : Heat transfer machines are just the thing you need in order to do heat transfers on your clothing or whatever surface you want to decorate. In order for you to stick designs and precious stones on porous and ... is best. This will also give you an idea of what kind of designs you can choose from.

Description : Heat Transfer Experiments

Last Answer : Heat transfer experiments are basically experiments that deal with temperature, its characteristics and qualities. Heat transfer experiments are done for many purposes, but mainly to do investigations on the ... three are learned, it helps to have a better understanding of heat transfers as well.

Description : The Guide to Heat Transfers

Last Answer : Heat transfer in thermal physics describes the process of thermal energy passing from a hot body to a colder one. Heat transfers happen when a physical body such as an object or a fluid with a ... you have the option of printing out your own designs and coming up with unique heat transfer clothing.

Description : How to choose a heat gun?

Last Answer : How to choose a heat gun? Heat guns are heating devices that consist of at least two parts, a heating element and a fan, which creates a directed heat flow of air. The high power value ... high efficiency and reliability, they are used for heating air in rooms with a very large internal volume.

Description : Describe the different modes of heat transfer.

Last Answer : Mode of heat transfer:- 1) Conduction 2) Convection 3) Radiation 1) Conduction- It is the mode of heat transfer from one part of substance to another part of same substance or one ... in the form of electromagnetic waves. Example: The heat energy receives from sun to the earth surface. 

Description : Define sensible heat and latent heat 

Last Answer : Latent heat: It is defined as the quantity of heat required for phase change of working substance at saturation temperature. OR The amount of heat added at saturation temperature is called latent ... thermometer. OR The amount of heat added up to saturation temperature is called sensible heat.

Description : Explain with reason through which side of shell and tube heat exchanges, the following liquids are directed. (i) viscous liquid (ii) high pressure liquid (iii) corrosive liquid

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Description : With neat sketch explain the construction and working of heat exchanger used for handling corrosive liquid.

Last Answer : Graphite block heat exchanger:   Graphite heat exchangers are well suited for handling corrosive fluids. Graphite is inert towards most corrosive fluids and has very high thermal conductivity. Graphite being ... vertical faces direct the service fluid through the exchanger in a cross flow.

Description : Draw a neat labelled diagram of 1-2 shell and tube heat exchanger. 

Last Answer : 1-2 shell and tube heat exchanger: 

Description : Calculate the rate of heat transfer by radiation from an unlagged steam pipe, 50 mm o.d. at 393K to air at 293K emissivity e = 0.9.

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Description : Name any four types of shell and tube heat exchanger.

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Description : Give the unit of overall heat transfer coefficient in SI and MKS.

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Description : Define film heat transfer coefficient.

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Description : Define steady state heat transfer.

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Description : Heat in a conductor is produced on the passage of electric current due to?

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Description : Does it change the temperature of the air?

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Description : Heating question. See details?

Last Answer : The air intake is in the ceiling in the hall in front of our bedroom door. Keeping the door closed added a couple of degrees to the room’s temperature.

Description : Can you help me figure out what this figure is in this video of an explosion that happened in our city today?

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Description : Does too much broiling wear out a broiling pan? Does too much baking wear out a cookie sheet?

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Description : Why is the metal end of a thumb drive hot to the touch after copying files to it?

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Description : Do you have any schedule or rules regarding your air conditioning use?

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Description : Duct work, which setup is best?

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Description : Do you handle freezing cold weather better than heatwave summers?

Last Answer : Absolutely. I miss the snow.

Description : Computer Shutting Down Automatically?

Last Answer : Have a look at the fan and heat sink on your CPU. How much dust is on there?

Description : What is the difference between natural gas and propane gas?

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