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in 2009 the administration of president obama instituted a so-called cash for clunkers program you are to evaluate the
the doubling time of any quantity n is related to the continuous growth rate rcont by the relation 2 exp n rcont
calculate the annual payments for a solar system whose initial extra cost is 10000 assume that the interest rate is 8
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you have assembled a modern three-bladed upwind wt with a rotor radius of 5 m at sea level where the density is 1225
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a what is the coe for a turbine with the following assumptions5 mw rating31 capacity factor1250kw turbine cost91000
a residential size wt has a diameter of 1 meter due to the size its efficiency is only 25 of the betz limit what is the
while completing this homework imagine the study space you are using employs a space heater with a rating of 30 kw a
the hallways of a university are lit by 40 fluorescent lights each containing two lamps rated at 60 w each the lights
a factory uses 70040 w standard fluorescent lamps for its lighting the lamps are to be replaced by 34w high-efficiency
if the initial extra cost of a solar system is 5000 what are the annual payments of a self-amortization loan if the
a solar system is to be installed in phoenix arizona the estimated amounts of energy from the system as a function of
compare the capital costs and the levelized costs of operation for a 1000 mw nuclear power plant and a 1000 mw pv
repeat the previous problem but assume that the cost of installation is to be repaid at 7 interest over 15 years and
how many liters of bio-oil can be generated with iowas 2009 corn stover yield use appropriate data from quick stats a
solar irradiation in parts of california exceeds 9 kwhm2 day 32 million mjkm2 day what are theoretical maximum c3 and
calculate the energy conversion efficiency of biomass to gasification products assuming the yields and energy contents
calculate the heat of reaction for ethanol heat of formation -2777 mjkmol synthesis with the mixed-alcohol process and
assuming nominal annual yields of 700000 5500000 and 3800000 kgkm2 for corn grain sugar cane and sweet sorghum
a group proposes a 2000 barrel-per-day ethanol output biorefinery using jerusalem artichokes what is the daily