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Feliks
376 posts
98 months
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Feliks
376 posts
98 months
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Next Percival - it is too Heron http://www.new4stroke.com/percival.pdf . But all helicopters this typy such defects were....  Seems to me that the project Herons Apache version "FEL -X" will not have these disadvantages, and will be missing heavy and very unreliable gear....  Pity that llink is not working. There was a nice movie...  Andrew 
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Feliks
376 posts
98 months
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Here are a few solutions that can some of the problems to solve.. Surely you will need to test them in practice, before se makes the right decisions as to the shape of the structure of the drive. Perhaps such a solution with a single tube might be the most efficient, because it will most laminar flow  Or a Cutter Heron   Of course, a whole can be properly enclosed guard areodynamic...  Well, here an example, if the electric drive can also adapt to the helicopter. Turbine itself would be inside the helicopter, but it would not be permanently linked to the rotor, so that no torque moved...  Andrew
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Feliks
376 posts
98 months
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Feliks
376 posts
98 months
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Christmas gift : One third of payments iza electricity  Marry Chistmas evryone  Andrew
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annodomini2
4,768 posts
120 months
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Feliks said: Christmas gift : One third of payments iza electricity Marry Chistmas evryone Andrew Merry Christmas Nice idea, but I doubt it would run an electric oven, shower or heating system (or AC!) for very long. There are lots of proposals for these types of systems, in the US some energy companies are filling containers with batteries to use in load balancing systems for the grid. (This is effectively what you are doing, but on a local scale), mainly in flat areas where they can't install a hydroelectric solution. The primary issue is conversion efficiency, going from AC->DC + Charging, then DC -> AC you typically lose iro 20-25% of the energy in conversion. There are proposals to create a DC socket standard for homes for low power systems that can work well in DC such as electronics and lighting. The problem with this is you need to rewire your home. The other fundamental weakness with this system is the same one experienced by electric cars, battery life, yes lead acid is cheap (relatively), but if you're changing the batteries every 3-4years it outweighs the savings in electricity. They are looking at a lithium solution that should hopefully work for 20-30years, but these are not suitable for cars.
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Feliks
376 posts
98 months
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annodomini2 said: Merry Christmas
Nice idea, but I doubt it would run an electric oven, shower or heating system (or AC!) for very long.
There are lots of proposals for these types of systems, in the US some energy companies are filling containers with batteries to use in load balancing systems for the grid. (This is effectively what you are doing, but on a local scale), mainly in flat areas where they can't install a hydroelectric solution.
The primary issue is conversion efficiency, going from AC->DC + Charging, then DC -> AC you typically lose iro 20-25% of the energy in conversion.
There are proposals to create a DC socket standard for homes for low power systems that can work well in DC such as electronics and lighting. The problem with this is you need to rewire your home.
The other fundamental weakness with this system is the same one experienced by electric cars, battery life, yes lead acid is cheap (relatively), but if you're changing the batteries every 3-4years it outweighs the savings in electricity. They are looking at a lithium solution that should hopefully work for 20-30years, but these are not suitable for cars. Welcome to annodomini2. I have my car Mercedes 508 D from 30lat. I purchased the two batteries Bosch 1A (headless) with up to 100Ah, in 1995, which is a good 15 years ago. Today I have them in the car, although in Poland severe winter. I think, with such new batteries housed in the home where the same temperature and daily regular load, can calmly work is by some 20 years. You can of course put with two or three such systems versus demand. The heating also. And of course, this is the system ready for solar and other power systems. ... http://en.wikipedia.org/wiki/Economy_7Regards Andrew
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annodomini2
4,768 posts
120 months
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Feliks said: Welcome to annodomini2. I have my car Mercedes 508 D from 30lat. I purchased the two batteries Bosch 1A (headless) with up to 100Ah, in 1995, which is a good 15 years ago. Today I have them in the car, although in Poland severe winter. I think, with such new batteries housed in the home where the same temperature and daily regular load, can calmly work is by some 20 years. You can of course put with two or three such systems versus demand. The heating also. And of course, this is the system ready for solar and other power systems. ... http://en.wikipedia.org/wiki/Economy_7Regards Andrew They don't see anything like the same current draw as they would in a home installation. A home electric shower, cooker or heating system are in the 10Kw region, @ 12v dc this is 833A continuous for sustained periods, hours possibly, not including conversion losses. Big Automotive DC batteries can deliver this current, but only for short periods and the voltage is quite low so you don't get the total power output. Higher voltage would reduce the current draw, but the batteries are not designed to operate in these conditions for sustained periods. Repeated high current charge and discharge cycles wear the batteries out faster.
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Feliks
376 posts
98 months
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annodomini2 said: They don't see anything like the same current draw as they would in a home installation.
A home electric shower, cooker or heating system are in the 10Kw region, @ 12v dc this is 833A continuous for sustained periods, hours possibly, not including conversion losses.
Big Automotive DC batteries can deliver this current, but only for short periods and the voltage is quite low so you don't get the total power output.
Higher voltage would reduce the current draw, but the batteries are not designed to operate in these conditions for sustained periods.
Repeated high current charge and discharge cycles wear the batteries out faster. UPS 3 KW need 48 V , 60A http://www.fideltronik.com.pl/pl/ups-ares-3000.htm...3 phase 3 x 3 kw =9 KW , 3 x 60 A , sum 180 A Andrew
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Feliks
376 posts
98 months
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In the UK on average , one receiver consumes 3300 KWh per year of electricity, for which he paid £ 500 in 2011. If the save 2\3 of that amount, that is to say, 300 pounds, had translated it by 20 000 000 customers, savings amounted to 6 000 000 000 pounds. In addition, the investment that returns to within two a year. ... Does this investment as the most attractive in the upcoming 2012.... Happy New Year! Regards Andrew
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annodomini2
4,768 posts
120 months
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Feliks said: A car battery isn't designed for a sustained 180A draw, they operate at ~2.5v @ 350-600A for about 10 Seconds. Then possibly 10A for a couple of hours. You need deep cycle batteries.
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Feliks
376 posts
98 months
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Feliks
376 posts
98 months
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Feliks
376 posts
98 months
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Feliks
376 posts
98 months
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I was with my friends in the Museum of aviation again. "I'd like him to show this demo in which the effect of the vacuum State at the top of the wings, which blows the wind from the fan, the ball is sucked in by a transparent tube provided in the middle of the wings and a peg that pops up on the wing. Doing this experience again, so your friend can see it, I am surprised that the ball a is NOT sucked in tube!! It is that this experience has been vandalized, and the ball is not sucked on Vandalized based on this, with a transparent tube to the bottom was several times the seeds. But this was not the reason for the lack of vacuum in the tube. After arrives home, thoroughly by looking at the about the well running the show. http://www.youtube.com/watch?v=Fb8IFfnbjY8&fea...I noticed that the tube on the film extends over the upper surface of the wings have 70 mm The vandalizet show the tube was brought down to equality with the upper surface of the wing. And this was the main reason for the lack of vacuum in the tube ! Simply air her upper surface of the wing, when it encounters a simple hole in the wing, just get it and seeking to keep the pipes, eliminates any vacuum in it.!! That is, that the ball could be the suck by the vacuum arising at the top of the wings, in this case the pipe must extend over the upper surface of the wing by about 70 mm !!! When this tube does not extend, this does not transmit its down this vacuum, even in the smallest degree. Why is this, explain the following drawings:    Yes so we are one of the one cases where due to vandalism, we fully the specificities of of the Red Baron Windmill... According to estimates, the surface of the wing of a 100 m square, with a wind speed of 30 km/h can produce approximately 750 KG lift. To get 100 KG of thrust of the propeller to the ultralight trike, the engine must have a power of about 50 KW We can also assume vice versa that the 100 KG lift gives us 50 KW electrical dynamo. Which had managed to seize the entire lift such 100 m ^ 2 wings which is 750 KG, a power Dynamo would be 300 KW. The Windmill of the Red Baron 100 m x 30 m = 3000 m ^ 2 and this will give us the 9000 KW. Now you can build 10 such wings one above with which 30000 m ^ 2 = 90 MW. No and now depends on how many% of this theoretical power we capture this lift and exchange it into electrical current. Regards Andrew http://www.grc.nasa.gov/WWW/K-12/airplane/wrong1.h...http://www.grc.nasa.gov/WWW/K-12/airplane/wrong3.h...http://www.grc.nasa.gov/WWW/K-12/airplane/presar.h...http://www.grc.nasa.gov/WWW/K-12/airplane/shape.ht...
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Feliks
376 posts
98 months
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Feliks
376 posts
98 months
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And in the meantime since the formation of the ideas, changes a lot. For example, go beyond the "magic circle of the cylinder" was the hardest thing. When I discovered it, a new type of timing, was the new 4 stroke engine:  Regards Andrew
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Feliks
376 posts
98 months
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My 6 cylinder boxer..  Can have two times less cubic capacity, because that is two times smaller turnover at the flywheel. Regards Andrew 
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Feliks
376 posts
98 months
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I think the era of steam comes to an end. At most in obsolete nuclear power plants will be still used.  Half supports the engine has one very big advantage. Piston not friction on the walls of the "cylinder""Only the seals frictions cylinder Thanks to these properties, the engine may be running on ... the coal dust. Rudolf Diesel's first engine was built just on the coal dust, but unfortunately zacierał is at work. In the case of half rotate, will not look any login problems.Simply does not have any large surface friction   Only the directory should be chosen for personal seal. Each round you can straighten lines, of course, resistant to coal dust..... http://www.youtube.com/watch?v=G6hwiz0QXsEhttp://www.passerotti.com.pl/page/pol/download/549...Regards Andrew
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Feliks
376 posts
98 months
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[quote name='Wuzak' post='5587386' date='Mar 15 2012, 08:26']Will sufficient heat be generated in the exhaust to be used ina combined cycle situation? [/quote] Yes, combined cycle, but also the latest trends ... http://www.gizmag.com/thermoelectric-cars-improve-...And since it has to work at the coal face powder (same what they use today's power plants for combustion in boilers). can seals with carbon, similar to the scrubbing of electric motors http://hariramco.com/carbon-brushes.htmlhttp://www.dpaonthenet.net/article/47129/C...ompre...Star engines were characterized biggest always force density   Below picture of the star half rotate around 10 (40) with "cylinders". for the transparency of the picture one can see only 3 additional "cylinders" more than is at the animated film. One can also see dimensions of the whole of the engine in the assumption that every cylinder has such dimensions for the picture half rotate with the set connecting rod of the Sulzer D= engine of 900 mm and stroke 2500 mm .  So 10 (40) "cylindrical" engine half rotate about the same working capacity in comparing to the Sulzer 10 engine cylindrical on the picture below . Sulzer: 10 Cylinders 20 m long , 15 m hight , 1500 Ton weight Half rotate star : 10(40) "Cylinders" 4,5 m diameter , 4,5 m long about 70 ton weight.  And most importantly.. Since in the engine half rotate mass innertia are several times Sulzer smaller than in the engine, engine half rotate can work with the much greater rotation speed. Slzer : 102 RPM 60 000 KW Half rotate 250 RPM 150 000 KW In same intake work volume . And now, the efficiency of the engine, due to the friction of the walls of the cylinder to rise about 5%. That is, it is the most efficient machine for the heat, whose efficiency exceeds 50% of the. http://www.theoildrum.com/node/2249Regards Andrew
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