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Topic: Stirling engine

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Hot air engine

Rotary combustion engine

Carnot heat engine

Internal combustion engine

Reciprocating engine

Robert Stirling

Stirling cycle

Heat engine

Piston engine

Wankel engine

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Quasiturbine

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	Animated Engines, Two Cylinder Stirling
		The Stirling is a very simple engine, and was often billed as a safe alternative to steam (since there's no boiler to explode).
		Stirling engines feature a completely closed system in which the working gas (usually air but sometimes helium or hydrogen) is alternately heated and cooled by shifting the gas to different temperature locations within the system.
		Stirling, one cylinder is kept hot while the other is kept cool.
	www.keveney.com /Vstirling.html (393 words)

	American Stirling Company FAQ
		A: Robert Stirling was a minister of the Church of Scotland who was interested in the health of his parishioners bodies in addition to the well being of their souls.
		He invented the Stirling engine (he called it an "air engine") because steam engines of his day would often explode killing and maiming those who were unlucky enough to be standing close by.
		The engines he built and those that followed eventually became known as "hot air engines" and continued to be known called hot air engines until the 1940's when other gasses such as helium and hydrogen were used as the working fluid.
	www.stirlingengine.com /faq/one?scope=public&faq_id=1 (2018 words)

	Stirling Energy Systems Inc. - What is a Stirling Engine?
		Stirling engines are unique heat engines because their theoretical efficiency is nearly equal to their theoretical maximum efficiency, known as the Carnot Cycle efficiency.
		Stirling engines are powered by the expansion of a gas when heated, followed by the compression of the gas when cooled.
		The Stirling cycle uses an external heat source, which could be anything from gasoline to solar energy to the heat produced by decaying plants.
	www.stirlingenergy.com /whatisastirlingengine.htm (416 words)

	AirSport Four-Part Stirling Engine Article Reprint - SMW Mar 1993-Mar 1994
		The Stirling cycle is fuel efficient because of the regenerator, a device that greatly improves specific fuel consumption by saving and reusing the portion of heat energy that is thrown away in the exhaust of present engine designs.
		These engines are air cooled, 4 or 6 cylinder opposed designs with direct drive to the propeller, and are fuel injected except for a few of the smaller models.
		This entire engine can be pressurized as desired, and with the good rotary shaft seals commonly available (similar in design to those used in automotive air conditioners) both the oil and the hermetically sealed gas charge can be expected to last for many years.
	www.qrmc.com /fourpartstirling.html (7494 words)

	Stirling engine (or hot air engine)
		Stirling developed therefore a new principle: He uses two cylinders and two pistons: a working and a displace piston.
		The stirling engine appeared at the beginning as a good alternative to the steam engines, but the success was not so big because of high production costs (two cylinders) and the small performances compared with its size.
		The α-type stirling engine functions because of the different lever lengths, with which the piston rods attack at the main shaft.
	library.thinkquest.org /C006011/english/sites/stirling.php3?v=2 (780 words)

	STIRLING ENGINE
		Stirling engines require both input and output heat exchangers which must contain the pressure of the working fluid, and which must resist any corrosive effects due to the heat source.
		Stirling engines, especially the type that run on small temperature differentials, are quite large for the amount of power that they produce, due to the heat exchangers.
		Robert Stirling's innovative contribution of 1816 was what he called the 'Economiser' now known as the regenerator which acts to retain heat in the hot portion of the engine as the air passes to the cold part and thus improve the efficiency.
	www.solarnavigator.net /stirling_engine.htm (2155 words)

	Thermal Engine Corporation - Stirling-Cycle Heat Wave Wood Stove Fan Tecnical Information
		However, the engine that they had developed for this purpose was a far cry from the simple Stirling known to the Victorians, and had become a high-tech, space-age energy conversion machine.
		The automotive Stirling research projects were abandoned in the early 1980's, as the US car companies switched their research efforts to other projects, during major restructuring programmes.
		In practical Stirling engines, rather than alternately heating and cooling the cylinder containing the gas, it is easier and more efficient to move the gas, from one end of the cylinder which is kept hot to the other end which is kept cool.
	www.thermalengines.com /tech.html (691 words)

	Stirling Engine Team
		Stirling engines, although they have not found their niche in modern commercialization, can be used as valuable teaching aids in the classroom.
		Besides engines built for research, the only Stirling engines that have made an impact are those used as cryocoolers, those used to power small submarines, and those used in the classroom [1].
		Therefore, for Stirling engines to become more popular, their other advantages (low noise, low emissions, and the ability to use a wide variety of fuels) will have to outweigh the current disadvantages (high cost, unknown technology, and unproved reliability).
	www.uidaho.edu /engr/ME/sr_des/hev/stir (806 words)

	stirling engine
		The basic Stirling engine uses heats and cooling of a meal object to move a rotating shaft to generate movement.
		One the striling engine need a heat source that is out side the engine and to increase the power on the engine the size of the engine need to be increase which increase its mass and weight.
		But even those the striling engine had limited use its in pact on history is powerful the time that Robert Stirling has died he had seen the engine powered a good part of the industrial world.
	www.personal.psu.edu /users/f/u/fuc110/stirling_engine.htm (408 words)

	Quasiturbine Stirling Engine (Sterling) - Rotary Hot Air Motor - Heat Pump
		The Stirling engine is able to produce mechanical energy from a constant heat flow, which the open Otto Cycle engine cannot do; furthermore, the Stirling has no intake and no exhaust.
		Because the entire rotor is pressurized, the roughness constraint due to pressurization affects mainly the engine casing (the roughness constraint on the blades depends for its part of the relative pressure fluctuation from the chambers).
		Whereas the researchers unanimously seem to carry their attention on the use of regenerators, we believe that the improvement of Stirling passes rather by an increase in the speed of the gas movement between the cycles of relaxation and contraction, and the suppression of regenerator (and yes!).
	quasiturbine.promci.qc.ca /QTStirling.html (4095 words)

	Sunpower: Stirling Engine History
		The basic Stirling engine is a device which converts input heat into output mechanical power by approximating the thermodynamic cycle known as the “Stirling cycle.” The cycle and engine which bear his name were invented by the Scottish Reverend Robert Stirling around 1816.
		These “kinematic” Stirling engines enjoyed initial success as an alternative to the inefficient and dangerous steam engines which were widely used at the time.
		In kinematic Stirling engines the crank mechanism is used to convert the reciprocating motion of the pistons into the rotation of an output power shaft.
	www.sunpower.com /index.php?pg=19 (360 words)

	Technical Information
		The name Stirling Engine was chosen in honor of the inventor of the regenerator (economizer) and the engine that demonstrated its use.
		Stirling Engine operation can be explained in a somewhat non technical way that applies to many but not to all engines that may be called Stirling Engines.
		The Stirling Engine process (cycle) is reversible, meaning that an input of heat energy (burning fuel, for example) will produce an output of mechanical energy, and an input of mechanical energy (electric motor, etc.) will produce an output of heat energy.
	www.sesusa.org /types.htm (1076 words)

	[No title]
		Beta type Stirlings with their higher compression ratios have long be thought to be the most hopeful Stirling for integrating into our energy hungry world.
		Now with this new Stirling drive it is possible to group or cluster multiple beta type Stirlings together to provide compact cost effective Stirling power producing engines or heat pumps for real world applications.
		Plans for this engine and finished engines based on this design are not available for sale however the US Patent covering this design improvement is available for license..
	www.stirlingsteele.com (981 words)

	Automotive Stirling Engine Development Project
		The objectives of the Automotive Stirling Engine (ASE) Development project were to transfer European Stirling engine technology to the United States and develop an ASE that would demonstrate 30% improvement in combined metro-highway fuel economy over a comparable spark ignition (SI) engine in the same production vehicle.
		Measured Mod II SES [Stirling Engine System] power and efficiency performance was in excellent agreement with analytical projections, i.e., the differences were less than 4% in power and less than 1% in efficiency.
		In accomplishing the objective of transferring European Stirling engine technology to the United States, the ASE project succeeded in establishing an extensive U.S. technology and vendor base capable of designing, developing, and commmercializing Stirling engines.
	www.grc.nasa.gov /WWW/tmsb/stirling/doc/ase.html (865 words)

	Steam & Engine of Australia - A low temperature Stirling Engine by Penn Clower
		The engine is pretty and fun to watch, but because of the small chamber size and low operating temperature there isn't enough energy converted to drive an external load.
		Given those, the engine is not difficult to build and certainly not beyond the skill of anyone who has had success with similar projects.
		The top engine cover plate will have a hole in its centre to mount the displacer gland, so I picked one of my plates to be the top cover and drilled a 3/16" hole through the centre prick left by the compass that marked out the original disk.
	www.steamengine.com.au /stirling/models/livesteam/index.html (6590 words)

	SFA Stirling Engine Project
		Red RTV can be used to seal and glue some parts on the outside of the Stirling engine.
		It is important that the diaphragm not resist (by stretching) movement of the engine.
		The engine should run off the heat from a tea light candle, assuming the flame is as intense as an average candle.
	www.physics.sfasu.edu /astro/courses/egr112/StirlingEngine/stirling.html (2013 words)

	Stirling Engine -- Generating Energy from Small Temperature Gradients
		Stirling engines convert heat (actually, any temperature differential) directly to movement: they use a displacer piston to move enclosed air back and forth between cold and hot reservoirs.
		Stirling cycle engines are very efficient for a given temperature difference between the heat source and the heat sink.
		Mount Stirlings of a variety similar to what is show in the aforementioned website, though more robustly designed and constructed, along the back wall of a solar collector, and let the cold side of the Stirling engine bank radiate the waste heat into the shade.
	freeenergynews.com /Directory/StirlingEngine/index.html (1918 words)

	Products & Technology
		The Stirling Cycle Engine was devised in the early 1800’s as a safe and efficient alternative to Steam Power.
		The Stirling Engine’s usage was primarily industrial throughout the 1800’s, before its obsolescence at the turn of the century with the advent of the internal combustion engine.
		In light of the technical advances over the past 150 years, however, almost all aspects of the engine can now be improved and modernized, taking the engine from a low power, cast-iron, 19th century giant, to a high performance, high output, efficient machine of the 21st century.
	www.dekaresearch.com /coreTech.html (340 words)

	Green Wombat: Dean Kamen's Stirling Solution
		If the Stirling engine is scalable so that it could be put into 4 wheelers or even mid sized boats it could really change the face of power consumption my state and probably the whole world.
		The Stirling engine (in a PHEV, which is what we're talking about making) is definitely better, and indeed is a paradigm shift away from pollution, but global warming isn't the main point.
		The promise of the Stirling engine is a lot like the promise of the fuel cell, except that it uses (spruced-up) technology from decades ago instead of decades from now.
	blogs.business2.com /greenwombat/2007/08/a-visit-to-dean.html (3254 words)

	Stirling Engine Research at Lund University, Division of Combustion Engines
		The Stirling engine is characterised by the fact that the energy driving the engine is supplied as heat from outside the cylinder, i.e.
		To enhance engine efficiency, a plate-type recuperator is used to preheat the inlet air with the exhaust.
		The Stirling engine group at the division of Combustion Engines is mainly working with the hot parts of the engine, specialising in ultra-low emission LPP combustors with internal combustion gas recirculation (CGR).
	www.vok.lth.se /~ce/Research/stirling/stirling_en.htm (1750 words)

	HowStuffWorks "How Stirling Engines Work"
		The Stirling engine is a heat engine that is vastly different from the internal-combustion engine in your car.
		Invented by Robert Stirling in 1816, the Stirling engine has the potential to be much more efficient than a gasoline or diesel engine.
		The Stirling cycle uses an external heat source, which could be anything from gasoline to solar energy to the heat produced by decaying plants.
	www.howstuffworks.com /stirling-engine.htm (341 words)

	Directory:Stirling Engines - PESWiki
		The Stirling engine was invented in 1816 by the Rev. Robert Stirling who sought to create a safer alternative to the steam engines of the time, whose boilers often exploded due to the high pressure of the steam and the primitive materials of the time.
		Stirling Engine Ready for Production for Home Use (http://www.nbr.co.nz/home/column_article.asp?id=9844andcid=3andcname=Technology) - Whisper Tech has received a $300 million contract to supply tens of thousands of its WhisperGen units to homes in the UK.
		The Stirling and Miller-Cycle Engines (http://abcnews.go.com/sections/tech/Geek/geek000320.html) Quote: "...The main advantage of the Stirling engine is that it is remarkably efficient.
	peswiki.com /index.php/Directory:Stirling_Engine (1806 words)

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