Calculate mass flow rate of of fuel in the burner
Natural gas with a lower heating value (LHV) of 45,000 kJ/kg is burned on a gas stove with a combustion efficiency of 94.7% to produce 4.49 kW of heat. Calculate the mass flow rate (in milligrams per second) of fuel in the burner.
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Sap from a maple tree contains 5% sugar and 95% wateer on a dry basis. Your evaporator will boil away 1.25 kg of water per minute. How many hours must you operate the evaporator in order to produce 450.0 kg of maple sugar containing 20% moisture (
Water vapor at 3.0 MPa and 300C (State 1) is cooled to 200C(State 2) then is isothermically compressed to 2.5MPa (State 3). Locate all three states on a T-v diagram.
It's about how to measure an increase in wind velocity through a restriction.It starts with an area that is 17' wide by 14' high by 20' deep and it's a right triangle with a 16 degree slope.
After the car has stopped, what is the change in temperature of the brake pads and rotors? You do not have to enter units for this problem, only the numeric value to two decimal places.
Natural gas with a lower heating value (LHV) of 45,000 kJ/kg is burned on a gas stove with a combustion efficiency of 94.7% to produce 4.49 kW of heat.
A disk has a radius of 2 cm and weighs 12 kg. What is the required constant moment to rotate the disk from rest to a regular operating speed of 45 rev/min in a single revolution?
A lead bullet with a mass of 0.02 kg traveling at 198 m/s strikes an armor plate and comes to a stop. If all the energy is converted to heat and absorbed by the bullet, what is the temperature change? You only need to enter the numeric part of you
1-kg of air at 200 kPa and 127 deg C is contained in a piston-cylinder device. Air is now allowed to expand in a reversible, isothermal process until its pressure is 100 kPa.
A mass-spring system oscillates on a horizontal frictionless surface with an amplitude of 3.24 cm. a) If the spring constant is 234 N/m and the mass is 0.580 kg, determine the mechanical energy of the system.
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