2006-10-05 02:21:07 · 5 answers · asked by sandeep 1 in Science & Mathematics ➔ Engineering
It depends on how you define "long," but the wound spring on a 30-day clock comes immediately to mind.
2006-10-05 02:24:03 · answer #1 · answered by DidacticRogue 5 · 0⤊ 0⤋
A water reservoir at a certain altitude (for example a dam).
A turbine at the bottom will be able to recover the energy stored.
2006-10-05 09:26:11 · answer #2 · answered by Dr. J. 6 · 0⤊ 0⤋
Spring is known for storing mechanical engery in many applications.
Also balanced mass- example old type pendulam clocks.
2006-10-05 09:33:08 · answer #3 · answered by Wowpra 2 · 0⤊ 0⤋
Best example is a hydroelectric damn. In many places, they pump to the reservoir at night while they have excess power and them use the water during the day to spin the turbines to make power during the day.
2006-10-05 11:31:19 · answer #4 · answered by Jeffrey S 6 · 0⤊ 0⤋
A compressed spring in a process valve actuator which is ready to shut or open the valve if control air pressure is lost behind a diaphragm
2006-10-05 09:24:50 · answer #5 · answered by Robert A 5 · 0⤊ 0⤋