Pro/Forums - View Single Post - My theory of calculating necessary head in a loop

maxSaleen · 12-28-2004, 08:22 AM

I didn't mean that gravity caused a pressure drop. When I mentioned pressure drops I was reffering to the fact that the volumes of certain devices within the loop are greater than 3/8" id tubing. An example would be the reservior or the radiator.

SlaterSpeed: What you say about gravity pulling the water down that is not to say that it cancels the effect on head. Think about this scenario: You have a huge full tower case where one part of the loop is four feet above the pump. If the pump only has 3.5' of head it won't be able to push water through the loop. See where I'm going with this? Just because of the fact that the water eventually "falls" 4' doesn't mean it will assit the pump in pushing the water "up".

Take another look at my example. What I'm trying to convey is that everytime the water makes a vertical (or near vertical) run it has an impact on the head of the pump. This would be something interesting to experiment with to see if it is remotely accurate.

Anyone else?....

12-28-2004, 08:22 AM	#4
maxSaleen Cooling Savant Join Date: Dec 2004 Location: Orlando, Florida Posts: 383	I didn't mean that gravity caused a pressure drop. When I mentioned pressure drops I was reffering to the fact that the volumes of certain devices within the loop are greater than 3/8" id tubing. An example would be the reservior or the radiator. SlaterSpeed: What you say about gravity pulling the water down that is not to say that it cancels the effect on head. Think about this scenario: You have a huge full tower case where one part of the loop is four feet above the pump. If the pump only has 3.5' of head it won't be able to push water through the loop. See where I'm going with this? Just because of the fact that the water eventually "falls" 4' doesn't mean it will assit the pump in pushing the water "up". Take another look at my example. What I'm trying to convey is that everytime the water makes a vertical (or near vertical) run it has an impact on the head of the pump. This would be something interesting to experiment with to see if it is remotely accurate. Anyone else?....