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Consider the ocean thermal energy conversion system given in the lecture notes. Also take into consideration that 30% of the gross energy output is required to move the water. a) Evaluate the maximum possible efficiency. Actual efficiencies of less than 3% can be achieved. b) Determine the thermal efficiency of the system based on the ammonia Rankine system for a 100 MW plant. Assume the pump inlet is saturated liquid and the turbine inlet is saturated vapor. Also assume the turbine is reversible and negligible pressure drop in the condenser and evaporator.
for a vertical cylinder with an electric heater 2500watt at the basean inletlower part of cylinder with cold water at
air enters the compressor of an air-standard brayton cycle at 100kpa 300k with anbspvolumetric flow rate of 5m3s. the
Two slender rods of negligible weight are pin-connected at A and attached to the 18-lb block B and the 80-lb block C. The coefficient of static friction is 0.55 between all surfaces of contact. Determine the range of values of P for which equilibr..
a partivcle along a plane cirve from point a to a point b. the path length between a and b is 60 in. the speed at a is
a piston-cylinder device contains 0.15kg of air initially at 2mpa and 350oc. the air is first expanded isothermally to
rigid beam abc is supported as shown in figure p4.10. the pin connections at b c and d are each double shear
an air-standard otto cycle uses 0.1 kg of air and has a clearance of 17%. THe intake conditions are 98 kPa and 37 C and the energy released during combustion is 1600 KJ/kg. What is the compression ratio of the cycle?
consider a metal that is subjected to cold working by rolling it to a lesser thickness or hammering it. a would you
Write the electron configuration of the following ions by using spdf notation.
a polytropic process is one in which the pressure p and volume v are related by the formula npvcwhere c is a constant.
Determine the maximum normal stress in a 300-mm diameter basketball that has a 2-mm wall thickness after it has been inflated to a pressure of.
the old rigid tank problem a tank has a volume of 600 gallons and holds 300 lbm of water at 40 psig pressure. what is
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