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The relationship between wind pressure and air volume of the Sanace cooling fan
- Categories:Technology
- Author:rain
- Origin:capital
- Time of issue:2023-03-27 11:12
- Views:
(Summary description)The relationship between wind pressure and air volume of the Sanace cooling fan When the heat dissipation fan rotates, it will generate air flow, which will take away the heat from the surface of the radiator, thereby achieving heat dissipation. In this process, the wind pressure and air volume of the cooling fan are two key parameters, and there is a certain relationship between them. Generally speaking, the wind pressure and air volume are determined jointly by factors such as the rotational speed of the fan, the shape and size of the blade, and the area of the inlet and outlet. Wind pressure refers to the amount of wind power generated by a fan per unit area, usually measured in Pascal (Pa). The higher the wind pressure of the fan, the greater the size of the wind force per unit area, which can drive more air flow, thereby increasing heat dissipation efficiency. Air volume refers to the amount of air flow passing through a certain cross-sectional area per unit time, usually expressed in cubic meters per hour (m ³/ h) Is the unit. The larger the air volume of the fan, the greater the air flow driven per unit time, which can also carry more heat away, thereby improving heat dissipation efficiency. The relationship between the wind pressure and air volume of the cooling fan can be expressed by the following formula: Air volume=area x wind speed Wind pressure=density x wind speed ² / two Among them, the surface integral represents the surface integral at the outlet of the cooling fan, the wind speed represents the speed of the air blown out by the fan, and the density represents the air density. Generally speaking, there is a positive correlation between the air volume and air pressure of the cooling fan, that is, the higher the air pressure, the corresponding increase in air volume. This is because the fan needs to generate a certain amount of pressure when generating air flow, and high air pressure can generate strong air flow, thereby increasing the air volume. However, in practical applications, in order to save costs, manufacturers need to give up part of the air pressure if the air volume needs to be relatively large. If the fan can push a large amount of air flow, but the wind pressure is small, the wind will blow to the bottom of the radiator. This is why some box fans have high speed and large air volume, but this is because the cooling effect is not very good. On the contrary, a higher wind pressure usually means a smaller air volume. If there is not enough cold air to complete the heat exchange with the radiator, the heat dissipation effect will also be poor. In normal use, the nominal maximum air volume is not the air supply volume obtained by the actual cooling fan, and large air volume does not mean strong ventilation capacity. If air is flowing, the airflow will be obstructed by the fins in the path, and its impedance will limit the free flow of air. It can also be said that the air volume of the cooling fan increases, so the air pressure decreases. Therefore, there must be an optimal operating point at which the slope of the fan characteristic curve is the smallest and the rate of change of the system characteristic curve is the lowest, that is, the intersection point of the fan performance curve and the wind resistance curve. Therefore, the performance of a cooling fan can usually be described by the performance curve of the fan. This curve reflects the wind pressure and air volume that the fan can provide at different rotational speeds. When selecting a cooling fan, it is necessary to combine the actual situation and determine the optimal fan speed and operating conditions based on the performance curve to achieve the best cooling effect. At the same time, it should be noted that the efficiency and noise of fans vary at different rotational speeds, so these factors need to be comprehensively considered when selecting a cooling fan. Capital Technology Co., Limited is the chief agent of SANYO DENKI, one of the leading enterprises of the cooling fan industry. We are a factory who also have our own independent brand CAPITAL product series. The main products are cooling fan, DC/AC fan, radiator, filter, reactor etc. We can provide customer with the most professional and perfect technical support, welcome to contact me at anytime at rainlee@szcpt.com.
The relationship between wind pressure and air volume of the Sanace cooling fan
(Summary description)The relationship between wind pressure and air volume of the Sanace cooling fan
When the heat dissipation fan rotates, it will generate air flow, which will take away the heat from the surface of the radiator, thereby achieving heat dissipation. In this process, the wind pressure and air volume of the cooling fan are two key parameters, and there is a certain relationship between them. Generally speaking, the wind pressure and air volume are determined jointly by factors such as the rotational speed of the fan, the shape and size of the blade, and the area of the inlet and outlet.
Wind pressure refers to the amount of wind power generated by a fan per unit area, usually measured in Pascal (Pa). The higher the wind pressure of the fan, the greater the size of the wind force per unit area, which can drive more air flow, thereby increasing heat dissipation efficiency.
Air volume refers to the amount of air flow passing through a certain cross-sectional area per unit time, usually expressed in cubic meters per hour (m ³/ h) Is the unit. The larger the air volume of the fan, the greater the air flow driven per unit time, which can also carry more heat away, thereby improving heat dissipation efficiency.
The relationship between the wind pressure and air volume of the cooling fan can be expressed by the following formula:
Air volume=area x wind speed
Wind pressure=density x wind speed ² / two
Among them, the surface integral represents the surface integral at the outlet of the cooling fan, the wind speed represents the speed of the air blown out by the fan, and the density represents the air density.
Generally speaking, there is a positive correlation between the air volume and air pressure of the cooling fan, that is, the higher the air pressure, the corresponding increase in air volume. This is because the fan needs to generate a certain amount of pressure when generating air flow, and high air pressure can generate strong air flow, thereby increasing the air volume. However, in practical applications, in order to save costs, manufacturers need to give up part of the air pressure if the air volume needs to be relatively large. If the fan can push a large amount of air flow, but the wind pressure is small, the wind will blow to the bottom of the radiator.
This is why some box fans have high speed and large air volume, but this is because the cooling effect is not very good. On the contrary, a higher wind pressure usually means a smaller air volume. If there is not enough cold air to complete the heat exchange with the radiator, the heat dissipation effect will also be poor.
In normal use, the nominal maximum air volume is not the air supply volume obtained by the actual cooling fan, and large air volume does not mean strong ventilation capacity. If air is flowing, the airflow will be obstructed by the fins in the path, and its impedance will limit the free flow of air. It can also be said that the air volume of the cooling fan increases, so the air pressure decreases. Therefore, there must be an optimal operating point at which the slope of the fan characteristic curve is the smallest and the rate of change of the system characteristic curve is the lowest, that is, the intersection point of the fan performance curve and the wind resistance curve.
Therefore, the performance of a cooling fan can usually be described by the performance curve of the fan. This curve reflects the wind pressure and air volume that the fan can provide at different rotational speeds. When selecting a cooling fan, it is necessary to combine the actual situation and determine the optimal fan speed and operating conditions based on the performance curve to achieve the best cooling effect. At the same time, it should be noted that the efficiency and noise of fans vary at different rotational speeds, so these factors need to be comprehensively considered when selecting a cooling fan.
Capital Technology Co., Limited is the chief agent of SANYO DENKI, one of the leading enterprises of the cooling fan industry. We are a factory who also have our own independent brand CAPITAL product series. The main products are cooling fan, DC/AC fan, radiator, filter, reactor etc. We can provide customer with the most professional and perfect technical support, welcome to contact me at anytime at rainlee@szcpt.com.
- Categories:Technology
- Author:rain
- Origin:capital
- Time of issue:2023-03-27 11:12
- Views:
The relationship between wind pressure and air volume of the Sanace cooling fan
When the heat dissipation fan rotates, it will generate air flow, which will take away the heat from the surface of the radiator, thereby achieving heat dissipation. In this process, the wind pressure and air volume of the cooling fan are two key parameters, and there is a certain relationship between them. Generally speaking, the wind pressure and air volume are determined jointly by factors such as the rotational speed of the fan, the shape and size of the blade, and the area of the inlet and outlet.
Wind pressure refers to the amount of wind power generated by a fan per unit area, usually measured in Pascal (Pa). The higher the wind pressure of the fan, the greater the size of the wind force per unit area, which can drive more air flow, thereby increasing heat dissipation efficiency.
Air volume refers to the amount of air flow passing through a certain cross-sectional area per unit time, usually expressed in cubic meters per hour (m ³/ h) Is the unit. The larger the air volume of the fan, the greater the air flow driven per unit time, which can also carry more heat away, thereby improving heat dissipation efficiency.
The relationship between the wind pressure and air volume of the cooling fan can be expressed by the following formula:
Air volume=area x wind speed
Wind pressure=density x wind speed ² / two
Among them, the surface integral represents the surface integral at the outlet of the cooling fan, the wind speed represents the speed of the air blown out by the fan, and the density represents the air density.
Generally speaking, there is a positive correlation between the air volume and air pressure of the cooling fan, that is, the higher the air pressure, the corresponding increase in air volume. This is because the fan needs to generate a certain amount of pressure when generating air flow, and high air pressure can generate strong air flow, thereby increasing the air volume. However, in practical applications, in order to save costs, manufacturers need to give up part of the air pressure if the air volume needs to be relatively large. If the fan can push a large amount of air flow, but the wind pressure is small, the wind will blow to the bottom of the radiator.
This is why some box fans have high speed and large air volume, but this is because the cooling effect is not very good. On the contrary, a higher wind pressure usually means a smaller air volume. If there is not enough cold air to complete the heat exchange with the radiator, the heat dissipation effect will also be poor.
In normal use, the nominal maximum air volume is not the air supply volume obtained by the actual cooling fan, and large air volume does not mean strong ventilation capacity. If air is flowing, the airflow will be obstructed by the fins in the path, and its impedance will limit the free flow of air. It can also be said that the air volume of the cooling fan increases, so the air pressure decreases. Therefore, there must be an optimal operating point at which the slope of the fan characteristic curve is the smallest and the rate of change of the system characteristic curve is the lowest, that is, the intersection point of the fan performance curve and the wind resistance curve.
Therefore, the performance of a cooling fan can usually be described by the performance curve of the fan. This curve reflects the wind pressure and air volume that the fan can provide at different rotational speeds. When selecting a cooling fan, it is necessary to combine the actual situation and determine the optimal fan speed and operating conditions based on the performance curve to achieve the best cooling effect. At the same time, it should be noted that the efficiency and noise of fans vary at different rotational speeds, so these factors need to be comprehensively considered when selecting a cooling fan.
Capital Technology Co., Limited is the chief agent of SANYO DENKI, one of the leading enterprises of the cooling fan industry. We are a factory who also have our own independent brand CAPITAL product series. The main products are cooling fan, DC/AC fan, radiator, filter, reactor etc. We can provide customer with the most professional and perfect technical support, welcome to contact me at anytime at rainlee@szcpt.com.
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