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write a matlab code to calculate and plot the second explosion limit 2k1k9m for the h2- air mixture with phi05 within
a rooftop solar hot water heater with collector areas of 8 m2 and storage of 640 l is installed in phoenix arizona on a
a piston-cylinder device containing 1 kg of saturated liquid water initially at 1 bar is heated at constant pressure
if there are two forces acting perpendicular to each other at the same pin do they resolve together to determine
a 440-ft3 rigid tank contains saturated refrigerant-134a at 100 psia initially 26 percent of the volume is occupied by
two different fuels are being considered for a 1 mw net output heat engine which can operate between the highest
a force of f -2i8j-6kn is applied to an object that is constrained to move in the direction u05571i04481j-06992k if the
the yearly average solar flux incident on a horizontal surface in the united states is about 180 wm2 the average total
while completing your homework imagine the study space you are using employs a space heater with a rating of 30 kw a
if there were a carbon tax of 250ton of co2 on fossil fuels estimate the increase in the price of a barrel of oil the
a solar energy collector produces a maximum temperature of 100degc the collected energy is used in a cyclic heat engine
air enters a well-insulated turbine operating at steady-state conditions with negligible inlet velocity 4 mpa and
in air-conditioning systems streams of cold and warm air are mixed to get air with the right temperature consider a
an insulated rigid container is separated into two parts using a partition that is free to move and the partition
gas is contained in a vertical piston-cylinder assembly the initial volume of the gas is 01 m3 and the initial pressure
a closed system of mass 10 kg undergoes a process during which there is energy transfer by work from the system of 0147
a 15 kilowatt heater is to be used to heat a room with dimensions 35 m times 50 m times 30 m there are not heat losses
a vertical pistoncylinder device contains 001 lbm of gas the initial gas volume is 018 ft3 and the initial specific
a fire truck draws water from an open constant-level reservoir through a hose of 02 ft2 cross section the water is
a counter flow cooling tower cools 2000 galmin water from 104 f to 85 f with 210000 ft3min of air at 90 f dry bulb
a work platform is elevated on the end of a boom that has the ability to extend its length and vary its angle with
a heat pump supplies 40 kw of heat to maintain the inside of a house at 25 degree c in cold winter months when the
at steady state air at 200 kpa 325 k and mass flow rate of 05 kgs enters an insulated duct having differing inlet and
a piston-cylinder device contains 12 kg of saturated r-134a vapor at 32 bar an electric source supplies 8 a current to