A Diesel engine consumes 950 liters of fossil fuel per day at 35°C. If the fuel was purchased at 15.2°C and 29°API at PhP27.45 per liter, determine the daily cost of fuel. What is the heating value of fuel and the mass flowrate in kg/sec.?
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- At a particular stage of a reaction turbine the mean blade speed is 140 m/sec and the steam is at a pressure of 20 bar with temperature of 250° C. Fixed and moving blades at this stage have inlet angles 30° and exit angles 20°. The stage efficiency is 80%. Determine (1) Specific entholpy drop across the stage in kJ/kg.At a particular stage of a reaction turbine the mean blade speed is 140 m/sec and the steam is at a pressure of 20 bar with temperature of 250° C. Fixed and moving blades at this stage have inlet angles 30° and exit angles 20°. The stage efficiency is 80%. Determine (1) Specific entholpy drop across the stage in kJ/kg. (i) Drum Dia and blade height if heigh is one-twelfth of the drum dia. and the steam flow is 120 kg/sec. (ii) The percentage increase in the relative velocity across the bladings as a result of pressure drop across the blading.Your second customer wants to determine the dissipated electrical power by a personal computer, which has a fan that draws 5 L/s of air at 101.325 kPa and 21°C through the box containing the CPU and other components. After that air leaves at 101.325 kPa and 30 °C. Part 1Derive the steady flow energy equation (SFEE) from the first principles. You are required to show all the steps in deriving the SFEE and using both the principles of mass and energy conversation.Part 2Produce specific steady state energy equation (SFEE) by stating all the stated assumption in this equipment in order to be used in later stages without further analysis. Then calculate the pump power.Part 3Apply the short form to determine the dissipated electrical power by the personal computer.
- Pls. Answer this thank you!Steam enters a turbine stage with an enthalpy of 3628 kj/kg at 70 m/s and leaves the same stage with an enthalpy of 2846 kj/kg and a velocity of 124 m/s. Calculate the power in KW if there are 5 kg/s steam admitted at the turbine throttle.A diesel engine consumed 940 liter of fuel per day at 30oC. If the fuel was purchased at 15oC and 30oAPI at P4.00/li, determine the cost of fuel to operate the engine per day.Write legibly so i can understand 3. The turbine section of a Brayton cycle gas turbine receives hot compressed air at 150 psia and 2100 o R, expands it to 15 psia and develops a gross output of 15,000 HP. Air enters the compressor at 500 R. Determine: a) Mass flow rate (lb m/s ), b) power to drive compressor (HP), c)Net power output, d.) thermal efficiency, e) mean effective pressure (psia)
- 3. Steam enters the turbine at the rate of 1.5 kg/s with enthalpy of 2300 kJ/kg and exhaust enthalpy of 1200 kJ/kg. Steam is extracted from the turbine at a rate of 0.87 kg/s for heating purposes with enthalpy of 2570 kJ/kg. What is the turbine work, in HP? draw a diagram and show full solutionHelium expands polytropically through a gas turbine according to the process PV1219 = C. If the turbine produces 25.6 MW, determine the heat transferred in kJ/s.A diesel power plant provides power for Meralco in 20 hrs per day of operation.The industrial fuel used is 40 deg. API at 15.6 deg. C. The total consumption is3500 L per day at 30 deg. C.Determine the following:a. Mass Flow Rateb. Total cost of fuel for an eight-week operation if total cost of fuel per gallon is52 pesos.
- Steam enters a turbine at 10,000 kPa and 500 °C, and exhausts at 100 °C with an enthalpy of 2000 kJ/kg. The mass flow rate is m=4.5 kg∙s-1. What is the specific volume (m3/kg) of the exiting stream?3. Steam enters the turbine at the rate of 1.5 kg/s with enthalpy of 2300 kJ/kg and exhaust enthalpy of 1200 kJ/kg. Steam is extracted from the turbine at a rate of 0.87 kg/s for heating purposes with enthalpy of 2570 kJ/kg. What is the turbine work, in HP?A small petrol engine produces 15 KW of power under the following conditions;Fuel intake 0.05 kg/minCalorific value of fuel 40000 KJ/kgAir intake for combustion 0.70 kg/minSpecific air enthalpy 300 kJ/kgHeat loss from the engineBy radiation and convection 2700 KJ/hrDetermine the specific enthalpy of the exhaust gases from the engine.