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Think that a combined reheat and regenerative cycle and utilise the steam as the working fluid. steam enters the high pressure turbine at 3.5 Mpa 350 °C,AND is extracted for purposes of feedwater heating at 0.8Mpa. the remainder of the steam is reheated at this pressure to 350 °C and fet to low pressure turbine steam is extracted from the low pressure turbine at 0.2 MPA for feedwater heating. The condenser pressure is 10 kpa and both feedwater heaters are open heaters. calculate the cycle thermanl efficiency and the net work per kg of steam?
a pressure gage connected to a tank of oxygen reads 50 psi and the temperature of the oxygen is 80degf. if the local
How much work(J)is done in a natural rubber filament when strains slowly and non reversely to a= 2?
in an air-water vapor mixture at 30degc the partial pressure of the water vapor is 1.5kpa and the partial pressure of
q1.a single stage reciprocating compressor has a swept volume of 0.4 litres and operates at 1440 rpm through a pressure
at steady state a refrigeration cycle maintains a freezer at -2degc removing energy by heat transfer from the food
you are designing an ex vivo artificial organ. the cells in the organ cannot tolerate shear stress in excess of 0.5 gcm
a piston cylinder has 1.5 kg of air at 300 kand 150 kpa. it is now heated up in a two step process. first constant
a rigid 2-ft3 vessel contains water originally at 150of and 5.07 percent quality. the water is then heated until its
multi-stage flash distillation is used to desalinate seawater so it is fit for human consumption. a flash distillation
a vehicle is to be propelled by a jet of water inclined 15 degrees impinging on a vane as shown in figure 16.16. the
how many grams of Na3PO4 will be needed to produce 250 mL of a solution of a solution that has a concentration of Na+ ions of 1.5 M.
a system consists of nitrogen n2 in a piston-cylinder assembly initially at p1 20 lbfin2 and occupying a volume of
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