sonsdafloresta.org

Thanks for the responses. Is there any chance of a reference on this one?

it is the opinion of most biologists that the sea contains much more biomass

i wanna build a latex glove factory, do any 1 have the full machine list like glove line, biomas, boiler, Chiller , Lab Equipment

Yes. The list is of course too long to put in this answer, but you’ll need a good team to design and run the dip line and offline process as well as a good team to run the process afterwords. These latex glove lines are most efficient as chain lines with formers on both sides of the chain. You can do single former per side or go for better efficiency and use a double former design. You’ll need latex dip tanks, coagulant tanks, polymer tanks, leaching tanks, cure ovens, beading station, former washing tanks, a long chain (approximately 600 meters), lots of ceramic formers, online chlorination optional, supporting chemical mix tanks for compounding, maturation, and supply. You’ll likely need offline chlorination, washing, and drying. You’ll need a packing area with tables and maybe conveyors. You’ll need a good boiler (natural gas, oil, or wood). You’ll need some lab equipment to test the coagulant, latex, and other processes. You’ll need several ovens for total solids, pH meter, total dissolved solids, density meters, tensile strength tester, and lots more. Email me if you need some help. Good luck!

Ken Armstrong
SafetyClearance.com

of energy resouses including wnd, nuclear, fossil fuels, hydroe;ectric, solar, tidal, geothermal, biomas energy

Might look kinda funny all wrote out so I uploaded me sayin it to so you get the ‘rap’ feel… that link is

http://www.themusichutch.com/listen.php?songid=46964

here it goes:

Bio mass energy-
Might as well just burn some cannibus wit me
cuz in a hammock I be
absorbing some solar when….
your over-concerned about solar winds
Been had the electric car but the money trends in
Probably watched zeitgeist too many times again
Cuz fossil fuels got too much profit and cost to em
Its got politicians prostitutin’ for em, when the whole time-
the whole world could be warmed by geo-thermal man
and I just got my t-shirt and a thermal man
We ain’t ever goin to be energy dependent
i’td go against the established establishments scam
the scarcity grain –
Nuclear brain-
We can harness tidal energy now
but the unlimitlessness of it would be too insane
Hydro what?
Man just take another hit of this mary jane

hell yea that was fun
check out my group The American Scheme

www.myspace.com/theamericanscheme

Pe@ce

Schmidty-

hi,i eager to know about biomass powerplant how its work ,what is the difference between thermal powerplant ad biomass ,what drive the generator in biomas
thanks

Biomass powerplants are thermal powerplants for the most part. There have been some drawn up to run on the methane production from biomass decomposition but to my knowledge they haven’t been put into commercial production.

Biomass fuels burned include agricultural wood, forest wood, urban wood, miscellaneous ag shells, pits and pomace, straws, and stalks. The advantage, of course is using renewable resources and getting some heat value out of them without just throwing it all away.

The problem is getting consistency in fuel and availability to power a large powerplant. Most powerplants designed around coal are only economical because the coal is consistent in heat value and size and so can have equipment that handles it properly for burning efficiency and waste removal. Plus coal powerplants are usually in the 1000’s of megawatt capacity and so their cost per watt charge is very low.

Biomass, because the fuel is varied and not usually available in train car amounts, has powerplants in the 5-100 megawatt capacity. You just can’t generate power economically in this small amount because of the capital cost for equipment is so large in comparison to the amount of power you produce. For example, it might cost 100 million dollars to generate 100 MW of power, but if you generated 5000 MW of power, the equipment cost might be 300 million dollars, but you get 500 times more power from only 3 times the capital cost. Plus coal is virtually unlimited.

Biomass has a hard time competing unless there is a huge supply of a single source material, like sawdust or corn stalks or something. But for a mechanical engineer to try to design a boiler that burns sawdust one day and then corn stalks another day, it is very difficult to process different fuels to burn cleanly and efficiently in the boiler.

If you are still interested, here are some used complete systems for sale. As I said, the biggest downside to these is their small generation size compared to the huge coal burning facilities. You can generate a KW-H of electricity at a large (5000+MW) coal plant for around 4 cents a KW-H.

To generate a KW-H of power in a relatively large biomass plant (30+MW) , will cost about 12 cents a KW hour or more. The economics are hard to get around.

Which THREE of these energy sources do NOT rely on the Sun?
coal; nuclear power; hydroelectric power; tidal power; biomas; oil; geothermal.

Thank you.

Nuclear, hydroelectric and tidal

All of the others eg coal, biomass and oil, are made from plants and animals which need the sun to survive. Geothermal needs the sun to heat the Earth. The other three do not rely on the Sun at all.

suppose a sample of 75 1-square-meter plots, randomly chosen in north americas boreal forest, produced a mean biomass of 4.2 kilograms per square meter (kg/m2), with a standard deviation of 1.5 kg/m2.

estimate the average biomas for the boreal forest of north america and find the margine of eror for the estimation.

thank you!

This is a simple example of propagation of error.

Let X1, X2, … Xn, be a simple random sample of size n from a population with mean μ and variance σ².

Let Xbar be the mean of the n samples. the mean, or expectation of Xbar is:

E(Xbar)
= E( ∑X / n)
= 1/n * ∑ E(X)
= 1/n * ∑ μ
= 1/n * nμ
= μ

Variance(Xbar)
= Var(∑X / n)
= 1/n^2 Var(∑X)
= 1/n^2 * ∑ Var(X) … this is only valid because the Xi’s are independent
= 1/n^2 * ∑ σ²
= 1/n^2 * nσ²
= σ²/n

so you have:

the expectation of the average of the 75 samples is 4.2 and the variance is (1.5^2) / 75 = 0.03. The standard deviation is the square root of the variance = sqrt(0.03) = 0.1732051

This is known as propagation of error.

suppose a sample of 75 1-square-meter plots, randomly chosen in north americas boreal forest, produced a mean biomass of 4.2 kilograms per square meter (kg/m2), with a standard deviation of 1.5 kg/m2.

estimate the average biomas for the boreal forest of north america and find the margine of eror for the estimation.

thank you!

margin of error=(test statistic)x(standard error)
standard error=standard deviation/sqrt(sample size)
……………………=1.5/sqrt(75)
……………………=0.17

In order to choose a test statistic, we need to know the sample distribution. Since the sample size is large (>=30), we can apply the central limit theorem and assume a normal distribution. Now, that narrows things down to either a Z- or t-statistic. Our next question is, whether or not we know the population standard deviation. Since in this case, the standard deviation was calculated from a sample, we can say the population standard deviation is unknown. Thus, we would use the t-statistic with n-1=75-1=74 degrees of freedom.

Take alpha=0.05 (most common):

1-alpha/2=1-0.05/2=0.975

So, t(0.975;d.f.=74)=~1.99

Thus, margin of error=1.99×0.17=0.34, or 0.3.

The use of biomas energy avoids many of the problems associated with gathering, refining, transporting and burning fossil fuels. Yet biomas energy is not without its own set of problems. What Challenges do you think would arise from a large-scale conversion to biomas energy? How do these challenges compare with those encountered with fossil fuels? Which set of challenges do you think is more likely to be eventually overcome? Do you think any one type of energy has more benefits and fewer costs than the others?
Which one, and why?

try this site it’s help you a lot of information
http://search.yahoo.com/search?p=biomas%20energy

I am stuck on an island and i have to transfer energy using renewable sources. e.,g, biomas, solar energy, geothermal energy, hydro-electricity energy, tidal energy, wind energy, wave energy. I need to design a way of supplying how water for washing, and supplying heat/ energy to cook food, also energy to heat huts

Note: There are hot springs on the island and a forest and cold water sourounding it.

Also how can solar energy from the sun be transfer to electricity to run a refrigerator

If you’re stuck on an island, I’m assuming you have no tools or supplies (such as tubing, wires, bolts, etc). You’d have to set up you hut close to the hot springs and use them for your hot water, and heating. Dig a trench that runs through the floor of the hut for the hot water to run through (heating your hut and providing hot water for washing). Energy to cook food would have to come from combustible material on the island, and you’d need an inverter and a solar cell to make the fridge work (like you carry those on the boat for a 3-hour tour). To keep food cold, you’d have to dig a root cellar..

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