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You have been asked to design a vertical wall panel heater, 1.5 m high, for a dwelling. What should the heat flux be if no part of the wall should exceed 33?C? How much heat will be added to the room if the panel is 7 m in width?
consider a reheat cycle with steam leaving the boiler and entering the turbine at 4 mpa and 400 c . after expanded in
during a race the dirt bike was observed to leap up off the small hill at a at an angle of 60o from the horizontal. if
NaCl crystals slip on {110} slip systems. There are six systems of this type. Consider a crystal subjected to uniaxial compression parallel to z = [110].
determine the size of the contact patch the contact stresses and the maximum shear stress for a 40 mm diameter steel
A component with a radius transition is attached to a rigid wall at point A. Determine the factor of safety relative to the maximum shear stress theory of the proposed material if it's yield strength is 90 MPa
a 2 kw resistance heater wire with thermal conductivity k 15 wm-k diameter d .4 cm and length 50 cm is used to boil
a 4 kw motor is driving an oil pump with an efficiency of 95 down a 10 mm diameter pipe. if the velocities of the fluid
If the peak pressure and peak temperature of the cycle are 4.8 MPa and 2500, determine the net work done per cycle (kJ/kg) and the cycle thermal efficiency .
A satellite is in Earth orbit with an altitude at perigee of 555.0 km and an altitude at apogee of 1200.0 km. a. What is the semi-major axis of the orbit? b. What is the eccentricity? c. If the true anomaly is 160 degrees, what is the satellite's ..
energy is added to a piston cylinder arrangement, and the piston is withdrawn in such a way that the quantity PV remains constant. the initial pressure and volume are 200kpa and 2m3, respectively. the final pressure is 100kpa, calculate the work d..
steam at 4800 lbfin2 1000 f enters the first stage of asupercritical reheat cycle including two turbine stages. the
In the casting of steel under certain mold conditions, the mold constant in Chvorinov's Rule is known to be 4.0 min/cm2, based on previous experience. The casting is a flat plate whose length = 35 cm, width = 10 cm, and thickness = 15 mm. Determine h..
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