Engineering, 22.11.2019 00:31 lordcaos066
Eight fluid ounces 1 qt 32 oz of a beverage in a glass at 18.0°c is to be cooled by adding ice and stirring. the properties of the beverage may be taken to be those of liquid water. the enthalpy of the ice relative to liquid water at the triple point is 348 kj/kg. estimate the mass of ice (g) that must melt to bring the liquid temperature to 4°c, neglecting energy losses to the surroundings. (note: for this isobaric batch process, the energy balance reduces to q δh.)
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Engineering, 04.07.2019 18:10
Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk
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Engineering, 04.07.2019 19:10
What are the major differences between injection molding and extrusion?
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