What happens when you blow hot or cold air?
What happens when you blow hot or cold air? We have observed that if we blow fast from a small opening the air comes out cold. Whereas, if we blow slowly from a large opening the air is hot. Further, if we place our hand on our mouth, it feels warm, i.e. we feel hot air. Then again if we move it away, the air feels cold. Let’s understand what is happening here. Why is my AC blowing hot air all the time? High evaporator Delta T means that the incoming temperature and outgoing temperature is excessively large. It’s usually...