Kind regards
Andy Mahoney
Home Brew Power
Off-Grid Power Installer - UK)
www.homebrewpower.co.uk
Mobile: 07504 50 50 89
HomeBrewPower Yahoo Group On Carbon Neutral Power
http://groups.yahoo.com/group/homebrewpower/
Labels: Wind Turbine
Kind regards
Andy Mahoney (10th September 2008 21:58 - The Big Bang Never Happened!!!!)
Home Brew Power!
(Off-Grid Power Installer - UK)
http://www.homebrewpower.co.uk/
Mobile: 07504 50 50 89
HomeBrewPower Yahoo Group On Carbon Neutral Power
http://groups.yahoo.com/group/homebrewpower/
Labels: Adios, Australia, Bon Voyage, Renewable Energy, The Big Bang, Wind Turbine
Andy Mahoney
Home Brew Power
Off-Grid Power Installer - UK)
http://www.homebrewpower.co.uk/
Mobile: 07504 50 50 89
HomeBrewPower Yahoo Group On Carbon Neutral Power
http://groups.yahoo.com/group/homebrewpower/
Labels: Solar Panels, Solar UK, Solar Voltaic, Solarvoltaics, Sustainable Energy, Sustainable Living, Wind Turbine
Kind regards
Andy Mahoney
Home Brew Power
Off-Grid Power Installer - UK)
http://www.homebrewpower.co.uk/
Mobile: 07504 50 50 89
HomeBrewPower Yahoo Group On Carbon Neutral Power
http://groups.yahoo.com/group/homebrewpower/
Labels: Backup Generator, DIY Solar, electrical solar panels, Generate Electricity For Free, Off Grid, off-grid electricity, Off-Grid Power, Solar Power, SVO, Wind Turbine, WMO, WVO
Labels: Air Pump Lifter, Babington Balls, Babington Burner, Babington Nozzles, Oil Pump, SVO, Turk Burner, Vegetable Oil Burner, Wind Turbine, WMO, WVO, WVO Pump
A Solar Water Heater with a nominal capacity of 100 Litres/day costs about US$ 400 in India. The Govt gives this US $ 400 as a loan at 2% per annum interest( normal loan interest is 14%) I saw an interesting web site which describes a demonstration plant for producing power from Solar Heat https://matteranenergy.us/Technology.htm#Joe_Six-packs__Executive_Summary |
Labels: Generate Electricity For Free, Generator, Solar Hot Water, Solar Voltaic, Solar Water, Solarvoltaics, Wind Turbine
http://www.waterfuelconverters.com/
The concept of fuel enhancement has been around for decades.NASA What design methods are capable of increasing the efficiency of internal and external combustion engines?SAE There are many design parameters that contribute to overall efficiency,SAE with hydrogen addition facilitating a variety of engine modifications. The US DOT says hydrogen addition increases gas mileage using lean burn conditions,DOT while also mitigating pollution emissions without the use of a catalytic converter.SAE NASA says hydrogen addition increases flame velocity, which provides more useful pressure prior to the critical crank angle; thus allowing for greater compression ratios and advanced timing.NASA To assist in the dissemination of these concepts this website has been extensively expanded, providing an excellent source of original and third party research.
http://www.fmcsa.dot.gov/facts-research/research-technology/report/Guidelines-H2-Fuel-in-CMVs-Nov2007.pdf
Hydrogen Injection Systems
a.. Hydrogen injection system for a diesel engine produces small amounts of hydrogen and oxygen on demand by electrolyzing water carried onboard the vehicle. The electricity required is supplied by the engine's alternator or 12/24-volt electrical system (see Section 1.5 for a description of electrolysis). The hydrogen and oxygen are injected into the engine's air intake manifold, where they mix with the intake air. In theory, the combustion properties of the hydrogen result in more complete combustion of diesel fuel in the engine, reducing tailpipe emissions and improving fuel economy (CHEC, n.d.). Limited laboratory testing of a hydrogen injection system installed on an older diesel truck engine operated at a series of constant speeds showed a 4 percent reduction in fuel use and a 7 percent reduction in particulate emissions with the system on (ETVC, 2005).
A heat pump with a COP of 2.4 will use a
kilowatt-hour of electricity to move 2.4 kilowatt-hourss of heat to the water,
making it "more than 100% efficient." Of course, the heat has to come from
somewhere, so the efficiency is still really less than 100%. It just looks like
it's greater because something else (not the heat pump's energy source) is
providing the heat pumped.
http://en.wikipedia.org/wiki/Coefficient_of_performance
The only relation to using glass that I can think of is if it is used as the
tank, it may conduct heat less quickly than other materials. Of course many
simple thermos bottles are glass but that is not an option for an existing
tank.
Better insulation won't increase how much energy you can put in the tank but
it will cut your heat loss. Also, the only other way to increase the energy
content of a given volume of water is to heat it to a higher temp. That's
where the insulation might help make it worth letting your solar collector
heat the water to a higher temp.
Another member posted about stone holding more heat. You want the most heat
storage per volume.
http://en.wikipedia.org/wiki/Specific_heat_capacity#Table_of_specific_heat_c
apacities
The only types of stone they list on that chart are graphite and granite -
water stores more than twice what either of these will store. Possibly
another reference elsewhere will list values for other types of stone.
If, as the man says in the article below, this is a proven concept,
then it will surely be a boon to all those who have studied the
Rankine Cycle and attempted to design a closed-loop incorporating
it's principles. I am including an excerpt from an article
describing possibly using the Copeland Scroll Compressor, not as a
compressor, but as a Propane vapor-driven motor that will also
(without further modification) drive it's internal induction electric
motor as a 3 phase electric generator. So far, I have not been able
to verify independently that this concept is viable and that anyone
has any long-term experience with the scroll compressors used in this
manner.
QUESTION: Is there anyone out there who knows or knows anyone else
who has personal experience with using a Copeland Scroll Compressor
as part of a Solar/Propane Rankine Cycle Electric Generating
System? If so, please contact me directly at Noble Faubion,
nfaubion@netzero.com because this is all that I am waiting for before
putting my system together (I have a 10 foot parabolic fiberglass
satellite dish and other parts that are just waiting for me to
begin).
BTW, there are several New complete Copeland Scroll Compressors on
EBAY that go for between $200 and $400, which would make this project
feasible without a machine shop. After the excerpt, I have added a
ROUGH outline of how to proceed with this project.
____________________________________________________
The following is a quote from an InterNet article at:
http://www.redrok.com/engine.htm
"Scroll Expander.
Rankine rotary expansion generator.
David Wells and I have discussed the use of these expanders for use
in Rankine engines. Here is my concept. Take a Copeland Scroll
Compressor complete with its 3-phase induction motor almost off the
shelf. This complete assembly is in a sealed metal container. If high-
pressure gas is connected to the expander it rotates and applies
torque to the induction motor. The induction generator can be
directly connected to the power grid.
One disadvantage of using the Copeland unit is the inability to use
steam. The induction generator and bearings are exposed to the
working fluid. Steam will destroy these components. This requires
fluids other than steam.
propane
I have chosen propane as it is low in cost and has about the right
working pressure. Butane or pentane are also candidates. These fuel
gases are a much better choice than the standard refrigerants
primarily because of cost but also because they are non-ozone
depleting gases. The total system must be completely sealed to retain
the gases.
These gases are compatible with refrigeration oils which are used for
scroll and bearing lubrication. The oil is pumped from the low-
pressure sump to the inlet where it passes through the scroll. This
pump operates continuously whenever the expander is turning to
provide lubrication. Some of the oil will pass through the boiler as
dissolved oil in the fluid and return as a mist, which also passes
through the scroll. The boiler must be designed properly to prevent
oil accumulation. One method could be the use of float type oil
separators in low trap sections that let the oil pass through to the
boiler outlet.
A second pump pressurizes the condensate and injects it into the
solar boiler. The quantity of fluid injected is regulated by the
quantity of fluid in the boiler. The objective is to make sure that
the boiler is not so full as to let liquid pass out of the boiler and
into the expander. This would be called liquid slugging and is
detrimental to the expander.
The oil used in the system must be capable of sustained operating
temperatures in excess of 600 F. without deterioration."
__________________________________________________
Rough Outline of a Plan to Build a Solar/Propane Rankine Cycle
Electric Generating System
This plan describes a system that is the closest that one could get
to a turnkey solution as far as I have found. And, the scroll
compressors are cheap enough that one could replace them every 6
months, and still be ahead.
New Copeland Scroll Compressors are offered on ebay and the current
prices are low.
If this is a feasible concept, then here is what I see.
1) One will have a Copeland Scroll Motor/Generator setup ready to
plumb into the system.
2) One would have to have to have a satellite dish probably bigger
than necessary (up to 12 feet diameter) ready to be lined with
aluminized mylar as the reelecting surface and mounted on a pole in
cement in a suitable location---unblocked view of the sun in all
seasons. .
3) Use, as shown in the article above, Propane as the motive medium.
4) Decide how to build a heavily insulated tank, hopefully on a
concrete pad with concrete walls/top in the ground, (this tank does
not have to be pressurized, but if the heat causes any pressure
buildup, it must be vented to atmosphere) to contain the storage
medium and decide whether to use molten salt or mineral oil, or some
other recommended storage medium. I say use molten salt in the
storage tank, and use a mineral oil loop between the solar satellite
dish concentrator and the storage tank as the transferring medium.
5) Then, use another closed loop of liquid Propane passing through a
flash heat exchanger within the molten salt tank to convert the
relatively low-pressure propane into the motive high-pressure propane
gas to power the scroll compressor.
6) Route the pressurized Propane Gas to the inlet (the original
outlet) of the Copeland Scroll Compressor and route the outlet (the
original inlet) to another heat exchanger acting as a
radiator/cooling condenser to cool the propane back into the liquid
state.
7) Add a pump that will force the liquid propane into the propane-
holding tank ready to be fed into the flash heat exchanger within the
high temperature storage tank and the process begins all over again.
8) Use a valve to limit the flow of propane through the Copeland
Scroll Compressor based upon maintaining the desired speed that the
compressor is rotating.
9) A lubricating oil must be found that will withstand the expected
high temperatures (maybe not so high since we will have a much lower
temperature relative to water-to-steam temperatures), then we will
have a viable solution to the lubrication problem.
10) A fairly simple oil trap is all that will be needed, since the
propane vapor can still ingest oil droplets into the scroll
compressor inlet as long as it is a small quantity and does not
become too large. A simple separator trap will minimize the
lubricating oil that would be fed back into the scroll compressor
11) Fabricate the dish tracking system according to the information
we already have.
12) Specify the control valves and fabricate the heat exchangers
using stainless tubing and plumbing techniques.
13) Hook the AC electrical power to an AC-to-AC converter and then
to a Grid Tie Box.
NOTE: Did you notice that machine shop has NOT been mentioned here?
That is all taken care of by this concept. Purchasing plans is not
needed and no machine shop is needed. Just standard shop hand
tools, a drill press and a workbench. And, the rest is just
plumbing in the tubes/pipe/hoses and and wiring the electrical
outputs. Wire up the sensors and controls required, and get a
licensed electrician to wire the AC output to its destination. This
has become the SIMPLEIST SYSTEM WE HAVE FOUND, YET!
Finally, if you know anyone who has experience with converting
Copeland Scroll Refrigeration Compressors to a Copeland Scroll
Propane Motor/Generator, get them in contact with me at
nfaubion@netzero.com
Labels: Wind Turbine
Here some links on how to make your own Solar PV Panels / Solar Cells.
1st process - using cuprous oxide -
http://www.scitoys.com/scitoys/scitoys/echem/echem2.html
2nd process - using Titanium dioxide -
http://www.solideas.com/solrcell/english.html
3rd process - in situ solar cell process
http://www.linux-host.org/energy/aflatcell.html
Labels: Wind Turbine