Recent content by Tsar

Excellent, that's kinda what I thought! Is there a simple way/equation I can use to estimate the frictional forces and thus how much energy would be needed to keep the air going round? Thanks!

Hi Guys, I'm sort of getting there but still am a bit confused. After thinking about what I am trying to do I have managed to define the overall problem as follows: Beginning with a large tube of diameter 1m and length of 100m that is formed into a circle so that both ends meet at a fan placed...

I get it now, thanks! I think i'd better brush up on my theory!

...this is beginning to make sense now! I am actually trying to use the airflow to cool down a large area. The area being cooled is 1m long and I estimated the amount of air that I needed to transfer across the area being cooled should be 1m3 of air every second (i.e. 1kg of air). I thought...

...Thanks Bystander. In essence, I am trying to use a fan as an extractor. The air will simply be moved from one side of the fan to the other. I assumed that the energy required to move 1kg mass of air a distance of 1m would need 10J. The fan manufacturers state that their fan will use 145J to...

Homework Statement Hi, I am trying to work out the energy needed to move a certain quantity of (ideal) gas using a fan but am finding a great discrepancy between my calculations and those supplied by the fan manufacturers. let's say i'd like to move 1kg of air (1kg/m3) a distance of 1m. I get...

Hi everyone and Happy new year from Birmingham, England!