Jumat, 18 Oktober 2013

do i need fresh air intake for my pellet stove?

carbon monoxide detectors solid fuel on carbon_monoxide_alarm_carbon_monoxide_alarm.jpg
carbon monoxide detectors solid fuel image



shanecal


i have a breckwell big e pellet stove that was recently installed. yesterday was the second time we've run it so far. we shut if off about 1030 and went to bed. at 6 am we awoke to our carbon monoxide detectors sounding. we opened the windows and they quickly shut off. after asking around, we've determined that the monoxide sensor may need to be replaced, or perhaps that our home is insulated very well, and we should consider drawing in fresh air for the stove. any insight anyone could provide for this would be greatly appreciated.


Answer
All appliances that actually burn something be it oil gas or solid fuel need an air supply to compete combustion properly otherwise it produces the thing that set off your CO alarms, Carbon Monoxide. I would suggest you recall whoever installed it to return and do the job properly or if it was a DIY job check with the instructions or the manufacturer on their requirements/recomendations

biology homework help?

Q. [this really isn't as long as it looks!]


So i'm falling so far behind on my biology assignments.[im home schooled] three assignments were snet back to me to redo.I had to redo them each four times. Theres only one question on each assignment i need to redo.I cant get it! i dint learn this at my old school before i started this.Help please?


-How are molecules transferred into and out of a cell?
[this is my answer: Diffusion.Molecules are transferred into and out of a cell by particles moving from an area of high concentration to an area of low concentration.
Transport proteins They are embedded in the phospho lipid bilayer]

The teacher said 'There is another way, too. Also what is the classification of the two ways (two words). This answer is pretty clear in the lesson.' Well i dont get it then!


-What impact do humans have on the carbon cycle? it gave this link but it doesn't work on my computer? http://www.marietta.edu/~biol/102/ecosystem.html
[my answer 'its long' Humans take fossil fuels, burn them to release energy, and produce CO2 in the atmosphere. Humans and other animals breathing CO2 is normal part of the cycle. Taking billions of years of collected solid carbon deposits, and burning them into the atmosphere as CO2 within a couple-hundred years, is NOT the normal part of the cycle. The CO2 breathing plants are not keeping up, and the CO2 is accumulating. It's bad that Carbon Dioxide is accumulating because it has a greater affinity for hemoglobin than oxygen and can kick the oxygen off of hemoglobin causing a person to suffocate, but you can't smell it or taste it so it is extremely dangerous. That's why they have home CO detectors.
]

'the teacher said You are confusing carbon dioxide and carbon monoxide'


Answer
-How are molecules transferred into and out of a cell?

The general term is *transport*. The two kinds are active and passive. Diffusion, like you mentioned is high to low concentration, a specific type of passive transport. Active transport is low to high concentration.

-What impact do humans have on the carbon cycle?

This is straight from the site you gave above:

"The outputs of respiration are the inputs of photosynthesis, and the outputs of photosynthesis are the inputs of respiration...Humans have a great impact on the carbon cycle because when we burn fossil fuels we release excess carbon dioxide into the atmosphere. This means that more carbon dioxide goes into the oceans, and more is present in the atmosphere. The latter condition causes global warming, because the carbon dioxide in the atmosphere allows more energy to reach the Earth from the sun than it allows to escape from the Earth into space."

Carbon monoxide is the dangerous one you can't detect with the senses.

Hope this helps!


Good luck!




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