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Topic: Hot air engine

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	Hot air engine
		And this time the choice fell on a hot air engine of the low temperature variety.
		I always had wanted to build a hot air engine but was put off by the lack of a suitable drawing and the tales of horror about the precision fit the cylinder had to have.
		To get the engine to run more evenly, it's actually a single cylinder, a counterweight is added to balance the weight of the displacer.
	users.skynet.be /modelbouw.wilfried/hetelucht/klok.htm (687 words)

	LF Hot Air Engine
		This is a hot air engine I constructed over a fortnight when recuperating from Flu.
		Hot air engines have a special fascination to some model engineers partly because it is not always obvious why they work.
		The engine had plenty of compression but there was no noticeable urge to continue rotating.
	www.groundlevel.demon.co.uk /Hot_Air_engine.html (768 words)

	Rider Ericsson Hot Air Pumping Engine - Stirling Cycle Engine
		Powering engines by the changing volume of air as it changed temperature was first envisioned by Henry Wood in his patent of 1759.
		Stirling engines run off of the expansion of air as it is heated, and the contraction of the same air as it is cooled.
		The cycle of the Ericsson engine are as follows: Air at the bottom of the cylinder (E) is heated, thus expanding and forcing the piston (A) upward.
	rustyiron.com /engines/stable/ericsson.html (505 words)

	Hot Air Engine
		The engine can stop at intervals because of water condensing in the small cylinder but once the piston is removed and dried off it will normally run for about 20 minutes before it happens again.
		I understand that hot air engines were in use by the army about the time of the first World War They were used to pump water.
		The main convenience of these engines was their ability to operate anywhere that a source of heat could be found e.g.
	www.colrich.pwp.blueyonder.co.uk /hotairengine.htm (594 words)

	Compressed Air Encyclopedia -- Pneumatic Manufacturer Directory @ Pneumatic-Source.com
		At the opposite end of the compressor is the discharge where the air is released from between the screws at a significantly higher pressure than it originally entered.
		Compressed air that is discharged from the ‘low-pressure’ screws passes through an intercooler before being compressed by the second set of ‘high pressure’; screws.
		Cooling oil is injected into the air stream to absorb the heat generated by the compression of the air.
	www.pneumatic-source.com /compressed_air/index.php?p=16 (427 words)

	Live Steaming - Home Page (Site not responding. Last check: 2007-10-19)
		The most common hot air pumping engine seen at engine shows is the Ericsson engine.
		The larger of the two engines is a quarter scale model of an 8" engine.
		The construction article for the larger engine was in LIVE STEAM in the '70s and reprinted in the book "Steam and Sterling".
	www.livesteaming.com /articles/hot_air.html (655 words)

	Steam & Engine of Australia - A Novel Stirling Cycle Hot Air Engine To Build
		As air is heated it expands, this hot air is then transferred from the heated end to a cooler chamber.
		Hot air engines need a relatively heavy flywheel to maintain momentum and are not self starting.
		The bell crank on my engine is adjustable in all directions this is not necessary but can be used for experimentation; adjustment of the polystyrene displacer stroke and position may be necessary.
	www.steamengine.com.au /stirling/models/buildme/welcome.html (933 words)

	CGTalk - IOR of hot air (engine exhaust)?
		I know is that hot air refracts more than normal air (engine exhaust, the air above a camp fire, etc...) and if the IOR of air is 1.003 (according to 2 IOR table sites) I'm curious what the IOR of hot air would be.
		Since you won't render all the cold air in you scene with a physically correct IOR of 1.0003 and refraction turned on to get the effect of your hot air with a IOR of about 1.0001 your only option is to experiment with really low IORs for the hot air.
		But another problem is that this change needs to be properly animated for the movement of air, and this change wont be a 2-dimensional change, but a 3-dimensional change, so making an animated bitmap wont give you the effect your looking for.
	forums.cgsociety.org /printthread.php?t=75768 (712 words)

	Steam & Engine of Australia - Heinrici Hot Air Engine
		On the engine I have here, which is larger than yours (103mm bore) the thermal barrier in the top of the stand is asbestos rope and fireclay about 30mm thick.
		The larger engine I have here just has a small gas ring off a stove mounted in the base, while the one in the model is about the size of a small bunsen burner.
		This displacer is a loose fit in the cylinder to allow the air to pass around it, while the power piston is an airtight fit in the cylinder and where the displacer rod passes through it.
	www.steamengine.com.au /stirling/engines/heinrici (1764 words)

	Lake Itasca/ Pioneer Hot Air Engine Show
		Ralph Reeves engine from the Henry Ford Museum...a one-of-a-kind hot air engine from the 1870's I believe.
		He reproduced several engines which currently do not exist by making all the pieces from steel plate and welding and some castings.
		This engine uses the air pressure of the power piston to move the displacer.
	users.zoominternet.net /~pcgray/Itasca/itasca.htm (244 words)

	Steam & Engine of Australia - Pictures - Ballan District Vintage Machinery and Vehicle Club Inc. 1996. Ericsson Hot Air ...
		The hot air then forces its way into the cold side where it chills and contracts causing a vacuum in the hot side, the piston is sucked back up.
		In this case the air is heated by burning wood in a grate, it would work equally well with a gas burner, or a natural heat source such as a hot water spring (geothermic).
		Most of this engine was found by the side of a river where it had lain for years.
	www.steamengine.com.au /stirling/engines/ericsson (392 words)

	JEH - Rider Compression Hot-Air Pumping Engine (Site not responding. Last check: 2007-10-19)
		The prototype engines were made by the DeLamater Iron Works of New York City during the late 1800's and early 1900's.
		The engine is fired by a propane burner with a flame 1/2" diameter and less than 3/16" high.
		The engine runs cool, with the warmest part being the furnace which is never too hot to touch.
	www.jerry-howell.com /Rider.html (199 words)

	No. 795: Hot-Air Engine
		The engine was one fourth as long as the ship itself.
		As the air exhausted, it gave its remaining heat to the incoming air.
		To work, the engine had to be large and slow moving.
	www.uh.edu /engines/epi795.htm (444 words)

	Two 1860s Hot Air Engines
		The state-of-the-art in hot-air engine design of the late 1860s as described in Spon's Dictionary of Engineering.
		Hot air engines were treated in Division I (1869).
		Byrne describes two examples of this type of hot-air engine: those invented by Shaw and Wenham.
	www.alexdenouden.nl /01/1860s.htm (102 words)

	Miser Hot Air Engine (Site not responding. Last check: 2007-10-19)
		My engine will run on a bowl of hot water, but I haven't got it to run yet on my monitor.
		Hot air engines are delicate projects, requiring very careful, high precision machining.
		Fits must be air tight, but cannot be so tight as to have any drag, since the engine doesn't have the power to overcome much drag.
	plsntcov.8m.com /miser.htm (238 words)

	hot air balloon engine (Site not responding. Last check: 2007-10-19)
		Balloon Aloft Hot Air Balloon Flights, Adventure Travel Tours...
		Hot Air Ballooning And Balloon Flights In Australia With Balloon Aloft...
		Hot Air Balloon Rides: FAA Hot Air Balloon Report
	hot-air-balloons.blind9.net /hot-air-balloon-engine.html (297 words)

	HOT AIR ENGINE KITS, E. Jones (Aust)
		My enthusiasm was fired by a strong interest in the mechanics of the Hot Air Engine Principle, and also working Mechanical Art.
		I extensively researched library books and various antique toys, and also attended several displays and exhibitions of mechanical models and hot air engines.
		I eventually spent considerable time designing and developing several Hot Air Engine models, and completed them at home, using my lathe, and any available materials.
	hotairengines.bravepages.com (225 words)

	Hot Air Balloon (Site not responding. Last check: 2007-10-19)
		Hot air balloon Hot air balloon Hot air is less dense than cold air.
		Hot Air Balloon Rides, Hot Air Ballooning Accross the South of England...
		Hot air balloon Hot air balloon This activity introduces students to the concept of flight.
	hotairballoon.top-terms.com (1504 words)

	Boyd's Tin Can Stirling Hot Air Engines
		Engine is 3/4 done and I ran into a few technical problems.
		The bottom on the large cylinder is heated, causing the air to expand.
		This will cause the air to cool down, as the top is cooler than the bottom.
	www.boydhouse.com /darryl/stirling (1228 words)

	stirling engines and stirling cycle hot air engines
		When properly aimed at the sun, incoming solar energy is focused on the heat cap of the engine and is converted to rotary motion.
		This all metal, fl and brass engine with red flywheel is mounted on a solid hardwood platform.
		Each engine is test run at the factory and comes complete with an alcohol fuel cell, extra wick, allen wrenches, and Owner's Manual.
	www.bullnet.co.uk /shops/test/stirling_engines.htm (498 words)

	Heat Engine Projects
		theorem which says that a maximum efficiency of heat engine can be obtained by a reversible engine, and that efficiency depends only on the temperatures of the hot and the cool sources of the engine.
		Engine is tight as the day it was built and it runs extremely well.
		This rubber engine essentially is built from flat cone of silicon rubber backed by a shaped metal plate.
	www.redrok.com /engine.htm (3424 words)

	Hot Air Balloons
		Romantic champagne hot air balloon flights departing from Ontario, Manitoba, Saskatchewan, Alberta, BC and Texas.
		Hot air balloons are about as simple as flying can get -- no engine, no moving parts really, and very little the pilot can do to...
		Balloons over Britain is a group of UK hot air balloon ride operators who offer ballooning to people of all ages from over 70 launch sites across the UK.
	www.hotmusicradio.com /hot-links/1/hot-air-balloons.html (698 words)

	Ericsson's Hot-Air Engine im Deutschen Museum (Site not responding. Last check: 2007-10-19)
		It was not until the engine designed in 1860 that they were suitable for practical purposes.
		Although these engines were noisy and of low efficency about 3000 of them were sold.
		Ericsson engines operate with open cycle: air is heated in a part of the cylinder.
	www.odts.de /hot_air/ericsson/DM.htm (238 words)

	Quasiturbine Stirling Engine (Sterling) - Rotary Hot Air Motor - Heat Pump
		Power increases as gas temperature differences increase in the chamber between the cold gas TDC intake and the hot gas BDC end; which means, from a mechanical point of view, that the gas should get the coolest possible entering the hot chamber, and the hottest possible entering the cold chamber (as in the Quasiturbine).
		Notice that the external engine hot area extends on the exterior over the cool area to increase chimney gas contact (which can still be further doubled by the use of fins).
		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).
	quasiturbine.promci.qc.ca /QTStirling.html (4095 words)

	hot air stirling hotair engine .com (Site not responding. Last check: 2007-10-19)
		Model steam engine casting kits, duplex steam pump, Rider-Ericson hot air engine P. Research...
		This patented four cylinder Stirling based design is one of the best running hot air engines around.
		One of the best-known inventors of hot air engines was James Stirling.
	www.amazinghotairballoonguide.com /13/hot-air-stirling-hotair-engine-.com.html (150 words)

	Other Stirling Engine Web Sites -English- (Site not responding. Last check: 2007-10-19)
		A Hot Air engine which runs on very low heat is shown here.
		Educational Stirling engines, a new type steam engine, a crypcooler and others are shown here (in Japanese).
		The engines are intended for commercial applications and for use by the general public.
	www.bekkoame.ne.jp /%7Ekhirata/english/others.htm (1373 words)

	Stirling Hot Air Engine Rally
		Following on from the last few year's popular and successful Stirling Hot Air Engine Rally, the museum is organising it's second Rally, and in addition, a Competition based on a Japanese Techno Rally, which will take place on
		There will be in excess of 80 Stirling and hot air engines most of which will be working.
		There will be model and full sized engines, some coal fired and some solar powered - on show in the museum's "Water For Life Gallery", Steam Hall and mezzanine floor.
	www.kbsm.org /events/stirling.htm (86 words)

	Stirling and Hot Air Engine Ring
		Roy Darlington and Keith Strong's companion site to their recently published book “Stirling and Hot Air Engines: An insight into designing and building experimental model Stirling engines” with lots of features of interest to model engineers students teachers engineers and academics.
		Moving cylinder Stirling engines, rotary liquid piston Stirling engines, the Seesaw Stirling engine and other Stirling design work of Hubert Stierhof (Germany) is shown here.
		Novel rotary styles of engine, some being LTD made from drink cans, and some suggested as a way forward for commercial engine development, are presented.
	m.webring.com /hub?ring=stirling (680 words)

	Hot Air Engine (home made)
		These engines were hopelessly inefficient, but were extremely reliable, quiet and required little maintenance.
		They were used for a number of light duty task such as fans, pumps and petrol air gas blowers.
		This engine was made from scrap materials to hand merely for the fun of it, and to prove the principle.
	www.restored-classics.com /engines/page7.html (137 words)

	Hot Air Kits - The Engineers Emporium
		Switch on the bulb and see the engine slow down as power is generated.
		A screw driver, file, allen key and glue is all that is required to assemble this kit.
		This high quality kit allows you to build a fully working hot air engine that will run off the heat of your hand**.
	www.theengineersemporium.co.uk /catalogue-pages/hotairengkits.html (333 words)

	the Stirling engine under construction at the DICHEP, Genoa
		Not to build the most economic or the most efficient engine, just to build one that can be of some, real utility and at a reasonable cost.
		The Stirling engine was invented in 1816, before the gasoline and Diesel engines.
		Air is strongly cooled, and together with compression work from the flywheel the working piston is brought again to the bottom, the displace piston slides up and the air is heated up again.
	www.genoastirling.com (1135 words)

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