QUESTIONI Consider Port Phyllis wind site, assume you are installing a G80-2000 Wind turbine (k at 10 m (from data fit). What is the "o of increased aunual energy produced from 50m Consider the site roughness length is 0.017m. Use the Wind power calculator A. 9% B. 22 % C. 12 % D. 1%

Calculate the net work per cycle, in kJ; B) the power developed by a motor, in kW and C) the thermal efficiency if the cycle is executed 1500 times in one minute. To answer the above, consider that the displacement volume of a Diesel internal combustion engine is 3 liters. The cutoff ratio is 2, and the conditions at the start of compression are set to 100 kPa, 22°C, and 3.17 liters.

A building has a total heating load f 200,000 Btu/hr. The sensible heat factor for the space is 0.8. The space is to be maintained at 72°F and 40% RH. Outdoor air at 40°F, 20% RH in the amount of 1000 CFM is required. Air is supplied to the space at 100°F. Find a) the conditions and amount of air supplied to the space b) the amount of water at 50°F required by the humidifier section c) the capacity of the heating equipment needed d) the temperature rise of the air through the heating unit.

If we wanted to supply all the electricity needs for New York City (NYC), with a popula- tion of about 10 million people, using photovoltaics technology, how much land area would we need? What other elements would be required for such an idea to work for NYC? How large of an investment would this involve, and how would the price of electricity in ¢ per kWeh have to increase in order to recover that investment in 10 years at an interest rate of 8%? For comparison, the average New Yorker paid 12¢/kWeh in 2002.