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Hot Water Mixer Calculations

Started by stu, Jun 27 2008 01:29 AM

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#1 stu

Gold Member

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83 posts

Posted 27 June 2008 - 01:29 AM

Dear All,
I need a calculation to find the temperature of the output stream of the hot water mixer.
There are two streams input to a mixer
1st stream (water) input temp =90 Deg C . Flow rate =30 m3/hr
2 nd stream(water) input temp=140 Deg C Flow rate = 40 m3/hr.
Please give me the output temp from the mixer.
With regards,
Stu

#2 Jiten_process

Gold Member

ChE Plus Subscriber
183 posts

Posted 27 June 2008 - 02:54 AM

It's really not a big deal. it is simple enthalpy balance.

90*30 + 140*40 = x*70 (taken ref. temp as 0°C)

solve the equation, x will be outlet temp.

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