a. Water flowing at 2.6 KL/s is taken from a river and delivered to a turbine 100m lower than the source. If the turbine/generator has an efficiency of 45%, calculate the electrical power that would be delivered over one year. b. Explain, with the aid of suitable graphs, the charge and discharge cycle of a deep cycle lead acid battery. c. In a thermal power plant, 1500 MWh of energy is to be produced in a day, half from oil and half from natural gas, Calculate, for a one year period: the number of barrels of oil required if the fuel oil plant is 40% efficient. the total amount of natural gas required if the efficiency of the gas plant is If a coal plant of 45% was used to supply the full load for a week, how much coal would be required? Use the following conversions in your calculations. Fuel & Energy Conversion & Equivalence Chart (reduced) http://www.cogeneration.net/FuelAndEnergyConversionand Equivalence.htm 1. Fuel Oil: 1 Gal of #4 Fuel Oil - 145,000 Bou's 1 Barrel of Oil-42 Gallons 2. Coal: 1pound coal = 12,000 Bru 3. Natural Gas: 1 Cubic Foot of Natural Gas-1030 Btu's

A power plant with a nominal rating of 1kW does not actually produce 1kW continuously because its capacity factor C - the fraction of the time that it is actually running at its rated power - is less than 100%. If the capacity factor C = 35%, how much energy will be generated by this power plant over 1 year in MJ?

Suppose that a new gasoline engine has been invented which can operate at the maximumthermodynamic efficiency (rather than the 25% or so which characterize most realisticengines). The burned fuel reaches about 2100 degrees C inside the engine and a 50 L gas tank has about2 GJ of fuel energy. If the engine must supply 30 hp to keep the car at a steady speed on the highway, how long will a tank of gas last?

The cost of electricity to operate a compressor for one year can exceed the purchase price of the compressor.

A wind generator rotates at 17 rpm on the rotor (the part with the blades). It is a direct drive (meaning the rotor connects directly to the generator). The generator is 86% efficient and produces 3.1 MW. What is the torque on the rotor?

Q40. a)What mechanical forces are generated in a reciprocating compressor? b) Briefly explain them.

Assess the capabilities of a hydroelectric power plant from the following field data: Estimated water flow rate, 40 m3/s River inlet at 1 atm, 10 C Discharge at 1 atm, 10.2 C, 200 m below the intake

2. A heat pump is like a refrigerator in that it uses work to take heat from a cold source (Tc, the inside of a house) and dumps it into a hot source (Th, usually the outdoor environment). a) Use the second law to find the magnitude of the work |w| needed to extract |qc] from the cold source and dump into the hot source. b) Assume all processes are reversible and the second law to explain why |w| > 0 if lgc] > 0 in part a).

Q. The velocity of steam leaving a nozzle of Turbine is 896 m/s and the nozzle angle is 20°. The blade velocity is 300 m/s and the blade coefficient is 0.79. Assuming the mass flow rate as 1 kg/s and the runner blades are symmetric. Determine the power developed in kW

Determine the compressor work, W,comp. And the condenser heat transfer, Qc.