Provided that the air inside the computer case is hotter than the temperature in the room, then basically: yes, the hot air from inside the case is replaced by cooler air from the room. However the fan only moves around the air it doesn't change the air temperature so make sure you have some good AC.
A: Even if the same hot air if allow to flow on an object it will cool it. That is the answer.
But if your PC is in front of AC for more than 3 hours, Your computer will be over cooled and this is again harm to the Computer.
No, a humidifier does not cool a room. It adds moisture to the air, which can make the room feel warmer and more comfortable, but it does not actually lower the temperature.
No, if you are not in the room you are just wasting electricity.
Yes so long as it is not really low (like -20oc) then it will help you computer keep its self cool becase computer get very hot and that is why it has all of the fans so cooling it will help and it it is too hot then your compuer will overheat melt or blow up
Yes, pointing a fan out the window can help cool down a room by promoting air circulation and drawing out hot air.
Fans can make a room cooler by circulating the air, but can also help circulate warm air, especially in the winter months. If it's a ceiling fan, putting the fan blades in reverse will push the warm down.
Cross ventilation can cool a room with no appliances.
Bamboo shades will help to keep a room warm in the winter and cool in the summer.
leave it to cool in a cool room to about room temperature and then refridgerate.
Yes, having a fan in the window can help cool down a room by promoting air circulation and bringing in cooler air from outside.
The design choices for a computer room are really up to the person that is using the room. A computer room can be large or small, but should contain a good computer desk and an ergonomic chair. It is also important to have good lighting.
It may initially help lower the room's temperature through evaporation, but the effect will be temporary. To significantly cool down a room, it would be more effective to use an air conditioning unit or a fan.
No, air conditioners do not take in outside air to cool a room. They recirculate and cool the air that is already inside the room.