A hair dryer, also known as a blow dryer, is an electrical device used to dry and style hair. It uses an electric fan to blow air across a heating coil; as the air passes through the dryer it heats up. When the warm air reaches wet hair it helps evaporate the water. Hair dryers may be used with a variety of brushes and combs to achieve different hair styles.
image/text credit: The Q
In this video you will learn how to make amazing hair dryer at home. All you need is cardboard, dc motor, nichrome wire, 2 batteries, coca cola empty can and follow steps from this video. As result you will get fully working hair dryer.One of the key factors to consider when designing a portable hairdryer is the amount of heating power it can produce.
Since warm air is capable of absorbing more moisture than cold air, the temperature of the airflow is critical.However, it is not enough to simply raise the temperature of the hair; the air must also pass rapidly through the hair for efficient moisture removal. Therefore, the efficiency of the fan is also a critical consideration.
Another key design criteria is the safety of the device. First, the hair dryer must not become so hot that it burns the user during operation. The cartboard housing must remain at a comfortable temperature and cannot overheat or else it could catch fire.