Answer Happy

Question: solve 5 and 6. asap
5. Solve the mass and energy balance equations to find mass of
initial water and steam needed
10 points
6. Assuming negligible heat addition due to the mixing action,
what is the temperature of the
slurry before steam injection? - 10 points
Givens:
Cocoa slurry is being prepared in tank. Following steps are
followed:
Pour warm water (at 40 C) in the tank
Slowly add 15 Kg of cocoa powder (kept at 20 C) into water while
agitating to disperse powder
into water
Inject steam (with absolute pressure of 2.5 bar) into the tank to
bring mixture temperature to 95
Tank is well insulated and has a tight lid on top. Assume no heat
loss and no loss of water from
tank during entire process
-energy balance equation:
(4.18 *W* (95-40)) + (15 * 2.4 * (95 - 20))
+ (S* 2184 91)