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Home > Forums > Chemical Engineers > Activities > Chemical engineering other topics Forum

Required Steam Calculation

Read More Threads Like This One

mhpatel (Chemical)

20 Jul 12 16:31

Hi
Please help. I want to calculate how much steam required to evaporate 27,000 kg/hr water.
Feed: 60% Water, 40% CaCl2
flowrate: 70,000 lb/hr

Product: 40% Water, 60% CaCl2
Steam condition: 23 Barg steam

Thank you

TD2K (Chemical)

20 Jul 12 16:59

I think you'll have more than 60% CaCl2 if you evaporate 27,000 kg/hr of water out of a feed stream of 70,000 lb/hr.

DOW has a nice handbook on CaCl2 that you can download off the Internet. That and your steam tables should give you what you need.

HEC (Mechanical)

23 Jul 12 2:59

Just love the mixed units, imperial and metric. A minor point but what is hte feed temperature and expected outlet temperature of the mixture?

Mark Hutton

mhpatel (Chemical)

23 Jul 12 11:14

Thanks,
sorry water removal rate is 27,000 lb/hr.
Feed temperature is 45 C. The outlet temperature is not fix.

Regards,
Madan Patel

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