Calculating CFM based on Power Dissipation and Max Junction Temp

In summary, power dissipation is the release of heat energy by a device when in operation. It affects fan CFM because a higher power dissipation requires a higher CFM from the fan to effectively dissipate the heat. Fan CFM is a measurement of how much air a fan can move in one minute and is important for cooling systems. Power dissipation and fan CFM have an inverse relationship, meaning that an increase in power dissipation will require a higher fan CFM and vice versa. Various factors such as cooling system design, operating environment, and device usage can affect the balance between power dissipation and fan CFM.
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likephysics
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I know how to select a heat sink based on Power dissipation and max junction temp. But how do I relate this to CFM of a fan. How I calculate CFM based on pd and max junction temp?
 
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  • #2
likephysics said:
I know how to select a heat sink based on Power dissipation and max junction temp. But how do I relate this to CFM of a fan. How I calculate CFM based on pd and max junction temp?
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Related to Calculating CFM based on Power Dissipation and Max Junction Temp

1. What is power dissipation?

Power dissipation refers to the amount of heat energy that is released or dissipated by a device, such as a computer or electronic component, when it is in operation.

2. How does power dissipation affect fan CFM?

The power dissipation of a device determines the amount of heat that needs to be removed by a cooling system, such as a fan. A higher power dissipation will require a higher CFM (cubic feet per minute) from the fan to effectively dissipate the heat.

3. What is fan CFM?

Fan CFM, or cubic feet per minute, is a measurement of the amount of air that a fan can move in one minute. It is an important factor in determining the effectiveness of a cooling system.

4. How do power dissipation and fan CFM relate to each other?

Power dissipation and fan CFM have an inverse relationship. As the power dissipation of a device increases, the fan CFM needed to cool it effectively also increases. Similarly, a decrease in power dissipation will result in a decrease in necessary fan CFM.

5. What factors can affect the balance between power dissipation and fan CFM?

The balance between power dissipation and fan CFM can be affected by various factors, such as the design and efficiency of the cooling system, the operating environment, and the workload or usage of the device. It is important to consider these factors when determining the appropriate fan CFM for a specific power dissipation level.

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