Plant Definition and 273 Threads

How is this Bio-mass [basicaly just a steam power plant] power plant plausible? It says it is going to supply 29 MW of electricity by burning biomass to heat some fluid (I suppose an ammonia-water mixture, but I really do not know) and turn a turbine (Something like a Rankine cycle I guess)...

Temporarily communicating vessel isolated hydroelectric power plant with swimming piston, driven through hydrostatic pressure One fixes to the bottom of a pool filled with water a cylinder also filled with water. On the bottom of the cylinder there is an initially closed valve, referred to as...

Hey, I am building a storage shed in the backyard and would like to build a flat roof which houses plants instead of a shingle roof. The slope of the roof will be around 1 foot rise per 6 feet run. The dimensions of the building are, 12 feet by 16 feet. floor is built with 2x10's and the...

I am wondering if anyone can confirm this answer I got for the following problem; A coal burning electrical power plant burns at 706 degrees celsius. Heat is exhausted into the river near the power plant; the average river temperature is 19 degrees celsius. What is the minimum possible rate...

Two sentences or so in a general American history book I was reading last night got me thinking. The book I was reading said that the first American electric power plant opened in New York City. I believe the book said that the first American electric power plant opened in 1887. My guess is...

I have an orange tree growing in a pot, and lately the soil has been getting some yellow growth of some sort on it. I can't seem to find anything about it in any of my books. The plant doesn't appear to be adversely affected. Any ideas what it is? Is it a problem? Will it spread to my other...

Homework Statement "A power station with an efficiency of 0.4 generates 10^8W of electric power and dissipates 1.5*10^8W of thermal energy to the cooling water that flows through it. Knowing that the specific heat of water in SI units is 4184J/KgºC, calculate how many Kgs of water flows...

Good afternoon. I want to ask a question. If we knew the data X through the plant H, and the output is Y. All we have is measurement data Y. Can we find the zeros of the plant H from the output data Y? Thanks and have a nice weekend. 01/09/2009 __________________________________ Hi...

This isn’t what you think. I’m not out to ignore or challenge the laws of thermodynamics and I have no free energy fantasies. This is just a thought experiment for anyone willing to indulge a layperson. For those of you thinking, “Go educate yourself. Read a physics book and stop wasting my...

Hi posted the question/cry for help in a regular thread but thought it might fit in here as well. Hello All, I am currently trying to optimize a steam power plant cycle and I am stuck... What I am unable to figure out is how to use a Mollier chart/diagram in order to determine the amount of...

I have a plant in my living room that doesn't get much light, and so it doesn't do very well. I've always been told that light from normal lightbulbs doesn't help because it's not "natural" light. But then I started thinking. The filament glows from the current and I'm just wondering what makes...

Hello! I performed a quick practical today using light microscopes. When looking at Epodea plant cells the chloroplasts 'retreated' to the edge of the cell; the vacuoles weren't particularly large and so didn't appear to be 'pushing' the chloroplasts an awful lot. Also, the chloroplasts at the...

For those familar with Irans current nuclear power plant that is under construction, the Iranians claim is for peaceful electrical generation but Israelis claim it is used to enrich Uranium for the purpose of WMD. Any comments on Iranian under construction nuclear plant?

I'm stuck on the calculations concerning the sizing of the shell and tube condenser, about the equations to use..is the log mean temperature difference equation needed? what is the best type of generator to use in a steam power plant?

Homework Statement List 2 enviromental events that might have triggered seed germination and growth into wild flowers The Attempt at a Solution I thought smoke from wild fires was a cue however I was told it has to do with the weather The wild flower part is throwing me off, how...

An 800 MW electric power plant has an efficiency of 30%. It loses its waste heat in large cooling towers. Approximately how much waste heat is discharged per second?"

I have this headge of a few shurbs/tress growing around my home. However this headge is now infringing on my view over a beautiful hillside and I don't want to remove them because they really compliment the surrounding area. I can't cut them because they are reasonably tall and grow on a slope -...

Homework Statement a power plant generates 2000MW of heat energy from nuclear reactions in the reactors core. this energy is used to boil water and produce hight pressure steam at 300degreeC. the steam spins a turbine, which produces 700MW of electric power, then the steam is condensed and...

Most likely. A myosin II like protein has been purified from tendrils and visualized by electron microscopy. That myosin is double-headed with a 100 nm long tail, which could form "filaments" in plant cell. The myosin II-like protein may be the same as identified myosin XVIII.

Also - how did diseases like smallpox and pneumonia evolve? When the host dies, microorganisms responsible for those diseases lose their source of energy. So how does it benefit them (reproductively) to lower the "fitness" of the humans they afflict?

Futuregen was the DOE's clean coal, carbon capture, and hydrogen production prototype plant all rolled into one. Started in 2003, DOE http://blogs.wsj.com/environmentalcapital/2008/02/06/futuregen-fight-gloves-off/?mod=googlenews_wsj" it had enough of the big bang project, it was busting its...

Homework Statement The Comanche 3 power plant currently being constructed in Pueblo, CO, by Xcel Energy will produce 750 MW of power. This plant uses supercritical boiler technology which will boost the thermal efficiency to 42%. The plant uses Powder River Basin coal from Gillette, WY, that...

Our investigatory project for this year is entitled "The Antimicrobial Effect of Helianthus annuus on Escherichia Coli". I will be needing H. annuus extracts. I understand that there are a number of types of extracts and extraction methodologies. Which type of extract must be used for microbial...

I think this might be an easy one but I am stucked right now and would really appreciate some help. How much mas is produced under a year by a nuclear power plant that gives 1,0 GW. Edit: ok seems like i made the newbie mistake to post this in the wrong forum, please forgive me moderator...

Which is the most diverse animal or plant, if one classes any thing living that is not a plant an animal.

Recently the commissioning part of our company started a new project in a gas turbine power plant with six individual power generation units, each 160 MW. Each power unit includes one auxiliary medium voltage switchgear to supply internal consumptions. Also common switchgear is considered for...

Somebody gifted me a venus fly trap, and I have not been taking good (any) care of it other than giving it distilled water and putting it in some spagum... uh, do not know how to spell, peat moss type growing medium. It's amazingly still alive and green after several weeks. I want to take better...

[SOLVED] Electric Current Homework Statement "A power plant produces 1000 MW to supply a city 40km away. Current flows from the power plant on a single wire of resistance .050\Omega/km[/tex], through the city, and returns via the ground, assumed to have negligible resistance. At the power...

[SOLVED] Power plant Hi! Here i have a problem : A power plant generates 400 MW of electric power.It has an effieciency of 40%. a) At what rate does it dissipate heat? b)If the waste heat is carried away by a river, and the temperature rise of the river must not exceed 3°C, what flow rate is...

is Diethyltoluamide present in plant material?

Again another homework question, all help greatly appreciated A gas turbine plant is fuelled by Methane,. After compresssion the air and fuel enter the combustion chamber at a temp of 600K and excess air is supplied in order to limit the temp of the combustion products to 1200K after steady...

Hi guys been given the following as some home work, haven't got a clue really its a bit confusing! Steam ar 40 bar and 400C enters the high pressure turbine of a steam power plant at a rate of 20kg/s and explands to a pressure of 3 bar at which point it is just dry saturated. at this point...

What plant is the most useful one?? What plant is most useful? What plant would we benefit from having the most of? If we chould have only one plant on the earth, which one should it be?

I have to do a detailed cost analysis of a chemical plants am ok for material units runing etc. costs, but I have to do stafing cost as well but I am stuck with what jobs are on the plant, I'm going to predict approx. 100 staff for the plant as it is already next to another plant which has quite...

Hi to everyone, For a while (which is only a few weeks) I have been thinking about a solar power plant with additional features. Here is a brief outline. Take an arid area close to the sea (Sahara, Saudia Arabia, parts of Australia etc.) Focus sunlight via computer controlled mirrors to a...

Australia is going to move to nuclear power over the next decade. I would like to work in this area but don't have a degree. I have a particular interest in physics and have done a year of university maths/physics befor giving up. At the time I was getting average scores and had no prospect of...

ey! i reli need sum help wit ma biology coursework "the affect on a plant on the rate of photosynthesis" kan ne1 help me owt pleeeeeeeeeeeez

Photosynthesis occurs in all plant life and is responsible for making them green. Why are not all plant life green. I.e. flowers can be yellow, red and some leaves too like the leaves of Poinsettia. Is the reason because no photosynthesis goes on in them? Or is something else more dominant...

What definition is used to determine the moment of death for a plant as an organism?

so i want to grow a tropical plant indoors im thinking about buying some plexiglass, a lamp, a fan,soil, and something to keep moisture in the air and growing it in there. i was wondering if there were any guides to this, or if i should just experiment (different moisture/light/air flow)...

My Bio textbook says that, by introducing the virus coat protein gene into a plant cell the cell becomes virus resistant. How is that possible?

A nuclear power plant generates 500MW at 34 percent efficiency. The waste heat goes into the connecticut river with an average flow of 3x10 to the 4th kg/s. How much does the water temperature rise? (it requires 4.8x10 to the 3 to raise the temperature of 1kg of water 1K

why plant become dominately sporophyte rather than gametophyte? i am currently learning about mosses, fern, gymnosperm and angiosperms and i got stuck when trying to make a connection between them.

What safety systems are there to prevent a LOCA?? (Loss Of coolant Accident) I've googled but nothing has surfaced that relates to LOCA.

Ok, I was watching the movie "Resident Evil: The Apocalypse" the other day. The big evil "Umbrella Corporation" nukes a city to kill the T virus (which is what makes the people turn into zombies ) The cover up for the city getting vaporized is too just say that the local nuclear power plant...

I have several around my. cott, i need some suggestions as to what plants to put in them, some thing evergreen that flowers maybe

Yah those are the last 4 words you want to see in the same sentence! http://www.msnbc.msn.com/id/10490469/ But it's ok, nothing bad happened... supposedly...

Assuming the current anti-nuclear public/political climate remains in place and no new nuclear plant sites would be allowed (nor within a reasonable timeframe) why not just simply increase the existing capacity? For a hydro plant it makes sense there is only so much water that can be...

Uranium Tiles and tobacco plant growth Someone told me a few years back that tobacco industries have used uranium tiles to help grow tobacco plants. I wasn't sure about this so I decided to throw the topic at my biology professor in case he knew something I didn't. I don't know if this is...

At a steam power plant, steam engines work in pairs; the rejected heat from the first is the heat input to the second. The operating temperatures of the first are 670 C and 440 C. The operating temperatures of the second are 440 C and 290 C. Assume both engines work at 60% of their Carnot...