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1. Hydrogen (H2) enters a combustion chamber with a mass flow rate of 5 lb/h and burns with air entering at 858F, 1 atm with a volumetric flow rate of 75 ft3/min. Determine the percent of theoretical air used.
2. Methyl alcohol (CH3OH) burns with 200% theoretical air, yielding CO2, H2O, O2, and N2. Determine the
(a) balanced reaction equation.
(b) air-fuel ratio on a mass basis.
(c) molar analysis of the products.
Water at 40 kPa and 70°C goes through an isentropic compression which raises its pressure to 3 MPa. Then at constant pressure it is superheated 200°C. Determine the enthalpy change for each of the two processes.
a small vapor-compression refrigeration unit is to be built into a recreational vehicle and is designed to operate on a
determine the electrical power input to the pump. the density of water is 1kg/l.
Determine the minimum value of the force P required to begin moving the block up the incline. Neglect the weight of the wedge.
compressive centric forces of 160 kn are applied at both ends of the assembly shown by means of rigid plates. knowing
you are designing a converging-diverging nozzle to operate at sea level. the nozzle will be mounted on a glider that
When a positron and an electron meet, they are both annihilated into pure energy. Calculate how much energy (in MeV) is released in this reaction assuming that each particle is moving at 50% the speed of light.
a loxlh2 rocket engine with a chamber pressure of 25 atm is optimized with an isentropic nozzle that is perfectly
steam at 200 c and 7 bars enters a mixing tank at a rate of 3 kgmin through a pipe with a cross-section of 1.20 cm2.
the drive roller for a conveyor belt. a link a-b is rotating at 80 rpm counterclockwise .blink a-b is 60mm longlink b-c
A mixture of air and water at a temperature of 30ºC and a pressure of 750 mmHg has a relative humidity of 75%. The wet gas is compressed to 40 psia and cooled to 20ºC. How many cubic meters of original gas were compressed if 0.75 lb of condensate (wa..
water cp 4182 jkg.k at a flow rate of 5000 kghr is heated from 10 c to 35 c in an oil cooler by engine oil cp 2072
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