Pump Definition and 621 Threads

The cylinder of a pump has a 6 inch diameter. The stroke is 8 inches in length with 200 strokes per minute. Find the output of the pump in gallons per minute.

Not sure if this is in the right topic, but does anyone know the difference between a fan and a pump? I'm working on something where I need to distinguish a fan from a pump. I need to do so without limiting the pump to any specific type. Basically I need to allow for a piston & cylinder type...

Does anyone have any ideas on how to construct an electromagnetically actuated micro pump? If so, please post.

these are following information given: 2 cylinders with diameters of 50mm and 150mm are connected. specific gravity of oil=0.8 then on top of the cylinder with the larger diameter is a 500kg mass. so the question is on what is the force required on the smaller diameter? another information...

U.S. checking possibility of pumping oil from northern Iraq to Haifa, via Jordan By Amiram Cohen The United States has asked Israel to check the possibility of pumping oil from Iraq to the oil refineries in Haifa. The request came in a telegram last week from a senior Pentagon official...

A perfectly reversible heat pump heats a building at 20deg from the atmosphere at 5deg. If the heat pump is run by an electrical motor whose efficiency is 80%, what is the cost of 1KWhr of heat supplied? (1KWhr of electricity is 6p) I am confused by this qn as I thought the efficiency, e =...

This question is killing me because I just can't seem to get it. A heat pump is used to heat a house in winter; the inside radiators are at T_h and the outside heat exchanger is at T_c. If it is a perfect (e.g., Carnot cycle) heat pump, what is K_pump, its coefficient of performance? Give...

This is the diagram of the mechanical system that i want to calculate the pump and the full Hydraulic system for it ... calculating of pressure and the pump pressure and the electriacal motore for the that H. Pump for holding the coil

Hi... I've seen a lot of tractors, they seem to have a shiny aluminum on their arms.. Are those pumps?? What are the advantages of using them? And how to configure them, do they power by motor? Please explain in details, thank you.

Air pump is pumping out a gas from a vessel (vessel's volume is V). After each cycle i it pumps out dV. Gas is ideal. T=Const. After how much cycles pressure P will decrease k times? Here is my work. PV = nRT Initially n=n(0) After each cycle n decreases (1-dV/V) times. So, after x...

I figured out how to modify (weaken) a Hurricane and prevent tornados with a pipeline while using the rotational velocity of the Earth. Actually, the Earth is a Giant Pump.Gravity is greater at the poles of the Earth because the Earth is not spinning with as much velocity. This why you would...

can someone give me some clues or help as to how I'm supposed to go about solving the following problem? my professor has not covered any of the material from this chapter, so i have no idea how to even start this. the question is: the motor on a water pump is rated at 6.6 hp. from how far...

Here's my problem: A heat pump cycle whose coefficient of performance is 2.5 delivers energy by heat transfer to a dwelling at a rate of 20 kW. a) Determine the net power required to operate the heat pump, in kW. b) Evaluating electricity at 8 cents per kWh, determine the cost of electricity...

Dear ... Please Try To Read Those : I have This System Of Water Pump Consist Of An Electrical Motor And A Water Pump For Lifting Water From An Underground To The Upground ... In A Factory Using This Pumped Water For Cooling The Iron That Produced Form The Rolling Machines ... (( Open...

I'd like to put a valve (like the ones on tire tubes) that will connect to a bicycle pump onto a PVC tube (on the side, or at the end). Anyone know how I can do this? What fittings will I need? Thanks.

Need to know the formula that i can use it to choose Water Pump ... or suitable ((( Water Pump ))) For any water pip line if i have known water tank capacity if i have two water reservoirs and need both to not to reach empty conditions

Ok this is VERY WEIRD so bare with me. I play gaida which is an instruments close to the bagpipes in Bulgaria. I would like to BUY or MAKE a footpump for this because I struggle as I don't have the lung-power to play I have tried the type of foot pump used on a rubber raft but this is...

Why do cells tend to mantain low internal concentrations of Na ions and high internal concentration of k ions despite the surrounding fluid being low in k ions but high in na ions?

Have any of you heard of the hydrosonic pump? It is an "over unity" device that actually works. It is said to produce about 1/3 more energy in heat than it requires in electricity to produce. It is not a perpetual motion machine because it does not produce enough energy to run itself...

Hi, I have a submerged magnetic water pump that is pushing too much water at 8500L/hr. I know that the propeller rpm depends on the frequency of the AC supply but how can I build a simple circuit to reduce the frequency? Thanks :smile:

I am looking for a manufacturer who will be able to custom design an unusually efficient air pump. The most efficient ones on the market right now (or at least the ones I have come across) require about 60 Joules to move just one liter of air. I need something that can do the same amount of...