Answer:
- <u>Translated from Portuguese language:</u>
"The gaseous coal is then burned in a gas turbine cycle and part of the residual heat from the exhaust gases is recovered to generate steam for the steam turbine. Currently, the construction of such plants costs about $ 1500 per kW, but their efficiency is about 45%. The average calorific value of coal is about 28,000,000 k J per ton (that is, 28,000,000 k J of heat released when 1 ton of coal is burned). If the mill is to recover its cost difference in five years from fuel savings, determine what the price of coal should be in $ per ton?"
Explanation:
- The price of coal will be around 37 $ per ton. As, a source of energy the coal is more involved in the different industrial and mechanical processes and increases the level of efficiency of different machines by providing a more unique way to obtain greater results.
Answer:
Kush gradually declined in power. A series of problems within the kingdom weakened its economy. One problem was that Kush's cattle were allowed to overgraze. ... By 350 CE, they were conquered by neighboring kingdoms and the last influences of the Kush disappeared.
Explanation:
Answer:
Is my spanish class? Yes,is
Explanation:
i didn't know if u wanted it translated....
Answer:
138
Explanation:
9 times x is the equation, the answer of number of ducks in a year is 9 times 12 = 108 plus 30 = 138
