AIR ENGINE
The air engine is an
emission-free piston engine that uses compressed air as a source of
energy. The expansion of compressed air
may be used to drive the pistons in a modified piston engine. Efficiency of
operation is gained through the use of environmental heat at normal temperature
to warm the otherwise cold expanded air from the storage tank. This
non-adiabatic expansion has the potential to greatly increase the efficiency of
the machine. The only exhaust is cold air (−15 °C), which could also be used to
air condition the car. The source for air is a pressurized carbon-fiber tank.
Air is delivered to the engine via a rather conventional injection system.
Unique crank design within the engine increases the time during which the air
charge is warmed from ambient sources and a two stage process allows improved
heat transfer rates
STIRLING
ENGINE:
The
Stirling engine is a heat engine that is vastly different from an internal combustion
engine. Stirling engines have two pistons that create a 90-degree phase angle
and two different temperature spaces. The working gas in the engine is
perfectly sealed, and doesn't go in and out to the atmosphere. The Stirling
engine uses a Stirling cycle, which is unlike the cycles used in normal
internal combustion engines
- The gas used inside Stirling engine
never leaves the engine. There are no exhaust valves that vent
high-pressure gases as in petrol or diesel engine, and there are no explosions
taking place.
- The Stirling cycle uses external
heat source, which could be anything from gasoline to solar energy to heat
produced by decaying plants. No combustion takes place inside cylinder of
the engine.
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