Re: New form of high torque turbine pattern,available for building and testing.
Posted by:
Fire-Drop_Technologies (---.cedarnetworks.com)
Date: July 5, 2010 03:18AM
Such as the output of your boilers for your bike. You state the fuel consumption as 1 gallon per 20 hours, which would be 1/20 of a gallon per hour, which depending on the fuel and if it is an imperial gallon or a US gallon, that would supply the boiler with 5,500 btu hr to 6,500 btu hr. If you have a 80% boiler effeciency, that is using the average 6,000 btu hr, 4,800 btu hour. IF the feed water is 70 deg F and the steam is 300 psi and 600 deg F then you would require 1,275 btu per lb of water evaporated. So you would have made 3 3/4 lbs of steam per hour.
If a low expansion, low compression is getting 15 lbs per hp hr steam usage it is running very well, in that case your engine would be able to make at max 1/4 hp.
If the bike, with full fuel and water, plus the rider equals 300 lbs, having a frontal area of 5 sq ft and a generous cd of .8, plus a rolling resistance of 10 lbs per 1,000, then you would get up to 15 to 16 mph.
If you could tuck in and reduce your frontal area to 4 sq ft, with a cd of .7, then you would reach 18 maybe 19 mph.
If you had a firing rate of 1/2 a gallon per hour, that could give you 2 1/2 hp, and you could get up to a bit over 45 mph, on the flat.
The engine is almost never the limiting factor for a steam powerplant, it is the amount of steam that can be supplied to it and the effeciency with which it uses said steam throughout its operational range. Also how effeciently it transmits said power to its drive wheel.
I am not trying to pick a fight or insult your intelect, I am just trying to educate you a bit. There are a great number of mysteries involved in steam power that can take a long time and lots of research to unwind.
I really do like the styling of your bike design though. It looks like it is going 100 mph just sitting there!
Ok first ting you don't grasp or have not mentioned any way? Is the boiler is EMPTY OF WATER, it stays empty, it has controles to keep it from scorching, the water is misted in to the boiler as a near steam mist, or very fine spray, it is done so spesificly, to cause suden water to steam with not standing liduid in th tubes, it is injected at such volume as to create the needed volume plus 30% And this set up means the boiler only ever holds steam and builds it quickly. I am not doubting your understanding of previously used forms of boiler, but I would have to say your confushan and doubt come from a lack of understanding of the differing principals of operation,and function, yes it is a boiler yes it makes steam, but here the comparable simularitys stop, and your missunderstanding of it's function begin, the boiler is run with a blue hot flame, at a consistant air fuel mix,and supplys over 10,000 btu. as it is nolonger in a stove but boiler and is one rather than two burners, go watch a you tube film on Chinese valvless pulse jets. This boiler uses the same principal of induction, and will heat the whole thing boiler case coiles and all red hot in seconds, once started. Then this heat is spritzed with water as a mist. try this with a pan on a stove with one pan red hot spritz it with a mist of water from a spray bottle, the other pour some water on it. See the differance? one i still hot and the water steam the other has cooled drasticly and still has water sitting in it. This is the point of boiler function that makes it new technology as opposed to old technology. And the reason the boiler functions sent to jeff so drasticly differ from other forms of boiler, they are not like old boilers but use the controles to prevent scorching the engine and its pumps control the water flow as per need since the water is suplied by volume of water to steam ratio,as per steam used by volume.