Using air lift pumps or eductors for fluid handling — Buoyancy and Bernoulli allow air lift pumps and eductors to move one fluid by using another. Ever since the Industrial Revolution, we've been searching for easier ways to get things done.
Workers no longer stir smelly vats of wet nasties using nothing but a wooden paddle. They no longer form bucket brigades. Steam and electrical power boosted manufacturing productivity by multiple orders of magnitude. One innovation was the retreat of the electrical motor from the point of action where fluids are being moved. It became possible to move fluids using an air lift pump or an eductor. Air lift pumps Air lift pumps serve two functions.
In its most simple form, its construction consists of a vertical pipe, open on both ends (see Figure 1), that serves as a fluid pipe. When used for agitating a stratified tank, the fluid pipe should be completely submerged to move material from the lower parts of the vessel to the upper sections. Because it's easier to remove contamination from air than it is to treat contaminated water, air lift pumps find a role in environmental remediation.
Energy Tower. ARES system to put energy storage on the right track. We’ve recently looked at ocean-based energy storage system concepts from MIT and Subhydro AS that are designed to overcome the intermittency problems of renewable energy sources like wind and solar by pumping water out of large tanks and using gravity to let it back in and generate electricity when needed.
Santa Barbara, California-based company Advanced Rail Energy Storage (ARES) has come up with a land-based alternative that would provide grid scale energy storage using electric locomotives. ARES’ technology uses heavy rail cars that are pushed to the top of a grade using excess power from renewable energy plants or when electricity demand is low. Then, when the wind drops, the sun stops shining, or electricity demand rises, the rail cars are released back down the hill, generating electricity through regenerative braking. With multiple vehicles position on the same track, the vehicles move independently and can be positioned mid-elevation in a queue. Source: ARES.
Pneumatic motor. A pneumatic motor or compressed air engine is a type of motor which does mechanical work by expanding compressed air.
Pneumatic motors generally convert the compressed air energy to mechanical work through either linear or rotary motion. Linear motion can come from either a diaphragm or piston actuator, while rotary motion is supplied by either a vane type air motor or piston air motor. Pneumatic motors have existed in many forms over the past two centuries, ranging in size from hand-held turbines to engines of up to several hundred horsepower. Some types rely on pistons and cylinders; others use turbines. Many compressed air engines improve their performance by heating the incoming air or the engine itself.
Classification[edit] Linear[edit] In order to achieve linear motion from compressed air, a system of pistons is most commonly used. Piston motors are the most commonly used in hydraulic systems. Rotary[edit] Application[edit] History in transportation[edit] » The Journal. How to Build Crystal Power Cells - Long Duration Power. Smart Gaswatch™ Scale Model:#GW315. Never worry about running out of gas with our new Smart Gaswatch™ Digital Tank Scale.
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