Limestone (calcium carbonate) particles
arestored in 50-l bags. the void fraction of the...
Engineering, 02.10.2019 16:30 harleyquinn1241
Limestone (calcium carbonate) particles
arestored in 50-l bags. the void fraction of the particulatematter
is .30(liter of void space per liter of total volume) andthe
specific gravity of solid calcium carbonate is 2.93.
a) estimate the bulk density of the bag contents
(kgcaco3/liter of total volume)
b) estimate the weight (w) of the filled bags. state whatyou
are neglecting in your estimate.
c) the contents of three bags are fed to a ball mill, a
devicelike a clotes dryer containing steel balls. the
tumblingaction of the balls crushes the limestone particles and
turns theminto a powder. the limestone coming out of the mill is
putback into 50-l bags. would limestone fill three bags, notfill
three bags completely, or fill more than three bags. explain.
Answers: 3
Engineering, 04.07.2019 18:10
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
Answers: 2
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
Answers: 1
Engineering, 04.07.2019 18:20
Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms
Answers: 2
Engineering, 04.07.2019 18:20
Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency
Answers: 1
Mathematics, 17.01.2021 14:00
Biology, 17.01.2021 14:00
History, 17.01.2021 14:00
Mathematics, 17.01.2021 14:00
Mathematics, 17.01.2021 14:10
Biology, 17.01.2021 14:10