The more blades of an electric fan, the better.
1. The more blades an electric fan has, the better the air supply effect will be.
2. The more fan blades, the "wind" can be cut into smaller pieces, making the blown wind softer and the mute effect better.
3. The more blades an electric fan has, the more energy it consumes.
Power Saving Method
First of all, choose high-quality products when purchasing. Since the technical threshold of the fan industry is low and the products on the market are uneven, you must choose products from well-known brands to ensure quality.
Secondly, because the electric fan can directly convert electrical energy into kinetic energy, the power consumption is very low. The maximum power is only 60W, which is equivalent to the power consumed by an ordinary lighting desk lamp. Therefore, from the perspective of energy conservation, , using an electric fan in midsummer is undoubtedly the best choice. Using an electric fan with an air conditioner and setting the air conditioner temperature at 26°C to 28°C will save energy and money.
Thirdly, as far as the use of the fan itself is concerned, generally a fan with larger blades has greater electrical power and consumes more electrical energy. The power consumption of an electric fan is proportional to the speed of the fan blades.
For example, a 400mm electric fan consumes 60W when using strong wind, and only 40W when using slow gear. The power consumption of the same electric fan at the fastest gear and the slowest gear differs by 40%. Therefore, Usually, you can reduce the power consumption of the electric fan by turning on the strong wind first, and then using the gentle breeze after it cools down. When the air volume meets the usage requirements, try to use breeze or medium wind.
Are the more blades of an electric fan, the better?
Based on the lever principle, the longer the force arm, the smaller the force required, so long The fan blades can also be moved by small winds. The larger the fan blade area, the greater the air resistance. If the fan blade is very wide and a strong wind blows, the fan blade will be blown over by the wind. Wind turbines are used to absorb wind energy rather than block wind energy. The three-leaf blades and low width (solidity) used now can absorb the wind energy to the maximum extent when rotated. If the blades are set wider, it will affect the airflow through the blade rotation plane, which is not conducive to the absorption of wind energy. When the wind speed v1 in front of the rotor rotation plane and the wind speed v2 behind the plane are in a certain ratio, the efficiency is the highest, which is 59.3%. In comparison, the so-called saving of materials, costs, and load issues are not major issues. The key is to use this form to achieve higher absorption efficiency. If you are interested, you can search for Bates theory and Ye Su theory. Does the low-solidity and few-blade wind rotor allow most of the airflow to escape? No. Low solidity wind turbines operate at a high speed, and the linear speed of the blades is many times higher than the wind speed. They can sweep most of the passing airflow, and only a small part does not pass through the blades. Most of the passing airflow drives the blades to rotate, and most of the wind energy be exploited. A lot of experiments have been done at home and abroad to select the appropriate number of blades. Two, three, and four blades are commonly used choices for wind turbines, with three blades being the most used. Of course, choose three blades and still have windThe structural strength of the machine, manufacturing cost, noise, appearance and other reasons. The multi-blade wind rotor has a large solidity and a relatively low wind energy utilization rate. But multi-blade wind rotors also have advantages. The output torque of a wind rotor with the same diameter is much greater than that of a small-blade wind rotor, and it has a strong starting ability at low wind speeds, so it is often used in rural water pumping and grinding. In areas with stable wind speed, especially low wind speed areas, it is possible to achieve better wind energy utilization effects by using wind turbines with 4 to 8 blades depending on different uses.
The more blades of an electric fan, the better.
1. The more blades an electric fan has, the better the air supply effect will be.
2. The more fan blades, the "wind" can be cut into smaller pieces, making the blown wind softer and the mute effect better.
3. The more blades an electric fan has, the more energy it consumes.
Power Saving Method
First of all, choose high-quality products when purchasing. Since the technical threshold of the fan industry is low and the products on the market are uneven, you must choose products from well-known brands to ensure quality.
Secondly, because the electric fan can directly convert electrical energy into kinetic energy, the power consumption is very low. The maximum power is only 60W, which is equivalent to the power consumed by an ordinary lighting desk lamp. Therefore, from the perspective of energy conservation, , using an electric fan in midsummer is undoubtedly the best choice. Using an electric fan with an air conditioner and setting the air conditioner temperature at 26°C to 28°C will save energy and money.
Thirdly, as far as the use of the fan itself is concerned, generally a fan with larger blades has greater electrical power and consumes more electrical energy. The power consumption of an electric fan is proportional to the speed of the fan blades.
For example, a 400mm electric fan consumes 60W when using strong wind, and only 40W when using slow gear. The power consumption of the same electric fan at the fastest gear and the slowest gear differs by 40%. Therefore, Usually, you can reduce the power consumption of the electric fan by turning on the strong wind first, and then using the gentle breeze after it cools down. When the air volume meets the usage requirements, try to use breeze or medium wind.