Engineering, 24.10.2019 17:43 lindseyreneesmith7
In the commercial production of sugar (sucrose), the product crystals are washed and centrifuged to partial dryness. the crystals are then sent through a rotary dryer where they are contacted with a hot stream of air that reduces the moisture content from 1: 0 wt% to 0: 1 wt%. the ratio of wet sugar to inlet air fed to the dryer is 3.3 kg wet sugar/kg inlet air. the inlet air contains 1.5 mole% water. (a) draw and label the flowchart and do the degree-of-freedom analysis
Answers: 3
Engineering, 04.07.2019 19:10
Analyze the factors that influence the choice between the following pairs of processes to make the products indicated: i) sand casting versus die casting of an electric-motor housing ii) thread rolling versus machining of a bolt for high-strength application. (co3/c5)
Answers: 3
Engineering, 04.07.2019 19:20
Apreheater involves the use of condensing steam at 100Β°c on the inside of a bank of tubes to heat air that enters at 1 atm and 25Β°c. the air moves at 5 m/s in cross flow over the tubes. each tube is 1 m long and has an outside diameter of 10 mm. what is the minimum value of nl needed to achieve an outlet temperature of t 75 c? what is the corresponding pressure drop across the tube bank?
Answers: 3
Engineering, 06.07.2019 02:30
On solidification from a melt, the polymer polyethylene forms a semi-crystalline spherulite structure. (i) sketch an individual spherulite and label the amorphous and crystalline regions. (ii) draw a schematic to show the changes in specific volume with temperature during cooling from the melt, comparing it to the theoretical extremes of fully crystalline and fully amorphous (indicate tm and tg)
Answers: 2
Engineering, 06.07.2019 04:10
Steam enters a converging nozzle at 3.0 mpa and 500Β°c with a negligible velocity, and it exits at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: is isentropic (a) (b) has an efficiency of 94 percent
Answers: 1
In the commercial production of sugar (sucrose), the product crystals are washed and centrifuged to...
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