Coal Power Online

Amir asked:


plz explain them!!

theinquisitor asked:

Lecture by Professor Richard Muller of the University California, Berkeley. Taken from Lectures 20 and 21 of the spring 2008 webcasts of Physics For Future Presidents. Also known as Descriptive Introduction to Physics. Emphasis is on conceptual understanding, rather than mathematics.

This lecture deals with the physics of climate change, the data on global temperature and carbon dioxide changes, and some potential solutions. Also covered are the many mistakes that can be made, including the trap of exaggeration. He warns against the danger of cherry picking and overstating the case. When people discover that the exaggerated case is not valid, they may dismiss the problem altogether. Professor Muller has researched this topic for many years and has co-authored a book with Gordon MacDonald called “Ice Ages and Astronomical Causes”.

The reports of the IPCC are referenced much during this lecture. The full IPCC reports can be found here:
http://www.ipcc.ch/ipccreports/assessments-reports.htm

This lecture can also be found here, along with many other lectures:
http://webcast.berkeley.edu/course_details.php?seriesid=1906978515

surajit r asked:


I want to design a stack i.e. the height, bottom dia, top dia, flange and bolts dia, base plate width etc of a stack. that is why I want a database of any 60 MW power plant

Alan G asked:


I used to live in Colorado and at tat time I learned in Ecology class, geothermal power plants were illegal because, ” they are unfair competion for conventional power plants”.
Conventional power plants were; coal, natural gas, petrolium, powered plants.
Have the laws changed?

kang t asked:


can plsplz make it by today pls

quizzard123 asked:


In the US, a very large portion of the electrical power comes from coal. In the short to medium term, there is no way to avoid the combustion of coal.

In the Powder River Basin in Wyoming, abour 500 million tons of the cheapest, cleanest coal in the nation is railed an average of 7-800 miles each year, to feed power plants throughout the midwest and beyond. That requires 100,000 railcars burning in excess of 500 million gallons of diesel fuel, and contributing vastly to greenhouse gases, over and above the burning of the coal itself.

So my question is, what are the physical. engineering factors concerned with the idea that, rather then building coal plants near cities like Chicago or Detroit, we build one or more HUGE plants in the PRB itself, and use high voltage power lines to move the electricity, instead of the coal?

Any ideas?
Thanks, KJ, you let us know when you’ve developed a solution that does not involve coal.
Does anyone have a link that might give some details on the relative power losses in the high voltage long distance power lines used in many countries? In terms of % per mile would be great. Given that we’ve already got a huge network of transmission lines moving power where it is needed, the additioanl losses from the PRB source (again, average <800 mile trip) would strike me as probably less than that 500 million gallons of fuel.