Fans are machines used in creating flow of air to an environment by using their fast rotating blades connected to a motor and this blades can either be housed in a cabin to regulate the flow of air and prevent external interference or just hang freely .
Revolving blade fans are made in a wide range of designs and are used in on the floor, table and desk or hung on the ceiling and also some smaller designed fans are found on electronics for cooling the systems ,others are also installed in vehicle engines foe cooling the enclosed system.
They perform their job by converting the electric energy from the power source to mechanical energy which in turns rotates the motor giving the blades a rotating power and its through this where a breeze is gotten, this breeze speeds evaporation of sweat on the skin making one feel cold.
Fans also utilize the principle of hot air raising and cold air which is heavy streaming down and through this the entire room is made free from warm air; this is achieved by fans pushing cold air downwards and through any ventilations though the rotation of its blades which in turn will create a free space attracting cold air mass from the outside environment.
Fans mostly the ceiling ones are important to a building as they can help both in cooling the house in hot times and also keep the house hot incases of winter depending on the setting of your fan and this helps in maintaining the conditions of the house at all times; heating fans should be set to rotate or turn in the clockwise direction and this maintains warm air down keeping the residents warmth.
Fans are less costly machines for keeping you in a cool breeze while still in the house instead of using air-conditioner which despite of being expensive to purchase and install also consumes a lot of electricity, a hectic long day at work can be finished by sitting under a fast rotating fan and enjoying a pleasant breeze around you and still end up paying less for the electricity a one can switch them off when he/she is no in the room.
Fans are a better option incases of improving the airflow in rooms, enhancing room d?cor, removing stale humid air from bathrooms, laundry rooms or kitchens which improve the rooms scent and also makes it better for living, fans improve air quality and reduce the likelihood of mold and mildew growth in the house.
In schools and institutions lecture or study halls have been fixed with ceiling fans and this is because these classes are filled with students or pupils who makes it difficult to operate as the available windows cannot fully provide continuous supply of air hence a ceiling fan is essential in keeping the environment conducive for learning and also for the well being of the students.
In agriculture, they can be used to facilitate that effective plant germination and growth as they help plants in respiration by providing a better environment.