The higher efficiency turbines have Small turndown ratios– turbines need to rotate at high speeds and are usually synchronized at 3600 rpm. ... Yet, the lower limit for use of steam turbines in CHP plants is a nominal boiler capacity of about 5 MW at present due to the lower electric efficiencies of small scale steam turbines and the higher price of the systems. ... Some new designs include coating the steam generator surfaces with an oxidation catalytic layer so that other emissions such as CO and unburned hydrocarbons can be reduced in a cost effective way Modest speeds, pressures an...

• Word Count: 1739
• Approx Pages: 7
• Grade Level: Undergraduate

With the speed of destruction of Earths ecosystem, the survival of many species, including human beings, is threatened. ... It would be difficult to enforce developing countries to limit the use of fossil fuels because it means that they should stop industrialization. ...

• Word Count: 600
• Approx Pages: 2
• Grade Level: High School

Then, the Kurrent - "A tiny and very distinctive-looking NEV, the Kurrent's price ($10,600) includes home delivery because, as American Electric Vehicle president Scott Thornton told AutoblogGreen, if AEV allowed the Kurrent to be sold at just any dealership, the customer might not be able to drive it home thanks to U.S. laws that restrict NEVs to roads with a posted speed limit of 35 mph or below. ...

• Word Count: 600
• Approx Pages: 2
• Has Bibliography
• Grade Level: High School

*The World Book Encyclopedia defines Sweatshop as a term for a makeshift factory where poverty-stricken people worked at top speed for 12 or more hours a say in an effort to earn a living wage. ... That is why they demanded limits on corporate power, promoted laws to prohibit monopolies, and helped smaller businesses compete in the economy. ...

• Word Count: 677
• Approx Pages: 3
• Grade Level: High School

To Drive or Not to Drive? It has happened to most of us, getting stuck on a one-lane road behind an elderly woman or man who seems to refuse to drive at minimum speed limit. What should be done to keep elderly drivers and others safe on the road? If we as a society take away the rights of older dr...

• Word Count: 1121
• Approx Pages: 4
• Grade Level: High School