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A fruit juice containing 30% solids of molecular weight 100 g was placed in a tray (length =100 cm, height = 90 cm, width = 8 cm) in the freezer that uses propylene glycol that is at -30 C(celsius). The convective heat transfer coefficient between the product and the glycol is 200 W/m^2 K. If the specific heat,density, and thermal conductivity of the unfrozen product are 4000 J/kj K, 950 kg/m^3 and 0.5 W/m K respectively and that of the frozen product are 3900 J/kg K, 900 kg/m^3 and 1.6 W/m K respectively, Determine the time taken for the product to freeze if it is at its initial freezing point when it was placed in the blast freezer.
for a turning operations you have selected an hss tool and turning a hot rolled free machining steel bhn 300. your
an airplane wing modeled as a spring-mass system with natural frequency 40 hz is driven harmonically by the rotation of
find the stresses in a point of a rod that is fixed to a wall and have a load in the edge or better known as a cantilever.
(a) Find the angular velocity of link CD and the velocity of the pin relative to the slot in link CD. (b) Find the angular acceleration of link CD and the acceleration of the pin relative to the slot in link CD.
What would have been the advantages or disadvantages of Tata collaborating with another automaker on the Tata? Who might it have collaborated with?
The external heat transfer coefficient is h=10 W/m^2*K. What is the rate of heat loss to the ambient?
a steam plant uses 3.045 tonne of coalh. the steam is fed to a turbine the output of which is 4.1 mw. the calorific
Calculate the force required in direct extrusion of 1100-O aluminum from a diameter of 6 in. to 2 in. Assume that the redundant work is 30% of the ideal work of deformation, and the friction work is 25% of the total work of deformation.
Determine the resulting stress equations for σx, σy and τxy given the Airy's stress function ? = a1x^4 + a2(x^3)y + a3(x^2)(y^2) + a4x(y^3) + a5(y^4), where ai are constants. Also determine, if any, the restrictions between constants.
The annual holding cost rate for this type of item has been estimated at 28%. What option is more economical?
a wellinsulated counterflow heat exehanger operates at steady state. in one stream liquid water enters at 10 degree
a hydraulic press is powered by a remote high-pressure pump. the gage pressure at the pump outlet is 22 mpa whereas the
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