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1. Methane (CH4) at 258C, enters the combustor of a simple open gas turbine power plant and burns completely with 400% of theoretical air entering the compressor at 258C, 1 atm. Products of combustion exit the turbine at 5778C, 1 atm. The rate of heat transfer from the gas turbine is estimated as 10% of the net power developed. Determine the net power output, in MW, if the fuel mass flow rate is 1200 kg/h. Kinetic and potential energy effects are negligible.
2. Octane gas C8H18 at 258C enters a jet engine and burns completely with 300% of theoretical air entering at 258C, 1 atm with a volumetric flow rate of 42 m3/s. Products of combustion exit at 990 K, 1 atm. If the fuel and air enter with negligible velocities, determine the thrust produced by the engine in kN.
A temperature transducer outputs 4 mA of current for 150oF and 20 mA current for temperature of 1oF, then find out Output current value for temperature of 90oF? If the temperature is 70oF, then what is the output current?
liquid water at 180oc and 1002.7 kpa has an internal energy on an arbitrary scale of 762.0 kj kg-1 and a specific
An ideal duct carries water (incompressible fluid) from a height of 10m to 20m. The pressures at the entry and exit points are at 1000 Pa and 2000 Pa respectively. Calculate exit velocity if the velocity at entry is 10 m/s.
an intermittent wind tunnel is designed for a mach number of 4 at the test section. the tunnel operated by sucking air
Consider the electrical heater of Problem 7.49. If the blower were to malfunction, terminating airflow while the heater continued to operate at 1000 W/m, what tem- perature would the heater assume?
argon at 20 degrees c and 100kpa has a velocity of 27 ms and enters a constant diameter pipe of 18mm. as the argon
a steel bar and an aluminum bar are joined end to end and fixed between two walls. the cross sectional area of the
What are the percentages of the total heat absorption taking place in the economizer, boiler drum and the superheater, respectively? Assume cp of air and water as 1.005 kJ/kg K and 4.2 kJ/kg K, respectively.
Evaluate the design of the compression spring in order to manufacture the component using the Laser Melting process giving particular consideration to how the process could be used to enhance the functionality of the component.
a w254x33 structural steel e200gpa section is used for a column with an actual length of 6m. the column can be
consider refrigerant r-134a flowing in a smooth horizontal 10-mm-inner-diameter tube of wall thickness 2 mm. the
at the beginning of the compression stage in an air-standard diesel cycle the conditions are p 200 kpa and t 380k. the
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