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Anonymous Poster

Recoverable Heat from sugar syrup vapour

06/15/2007 6:24 AM

Hai, I need a help from your people.

I am planning to recover the heat from the sugar syrup vapour. Sugar +Liquid glucose sryup is cooked in a coil cooker at the temp of 148 deg. Centigrade. the vapours will be vented out through the 4 in size s.s pipe. the quantity of the vapours will be 90 kg/hr. Please any body can suggest that how much heat can be able to recover by putting the jacket system to the vapour ventline.

The temperature of the vapours will be around 98 to 99 deg. Centigrade.

I am assumed that the vapour as super heated steam and as per my calculation

the recoverable heat is 90 kg (vapours) * 630 Kcal/Kg = 56700 Kcal/hr. Is it correct or I am doing wrong anywhere in my calculation. Please provide me the information to koti.reddy@itc.in

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Anonymous Poster
#1

Re: Recoverable Heat from sugar syrup vapour

06/16/2007 4:25 AM

HI !

I just saw a blog in the CO-GERERATION blog. A member has a sterling engine that the project was canceled by a cement plant. Maby you could use the engine to generate a lot of power, and help the sugar plant cut the cost of there energy costs.

The sugar vapors that you talk about seem to have enough heat to run his engine.

YOU should contact him and run the numbers to see if it will work ?

Maby a REDESIGN IS IN ORDER !

THANKS

goldrushnugget999

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#2

Re: Recoverable Heat from sugar syrup vapour

06/18/2007 5:02 AM

Assuming 90kg/h of steam can be captured at 99degC, and passed through a heat exchanger to emerge as water at 30degC, then: http://www.simetric.co.uk/si_steam.htm gives steam at 99degC of 2674kJ/kg of enthalpy, and water at 30degC 289kJ/kg of enthalpy. Difference is 2385kJ/kg, times flowrate of 90kg/h gives available heat transfer of 214650kJ/h or 59.6kW, so it's certainly worth looking at if a medium requiring heating can be found within a short distance.

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Anonymous Poster
#3
In reply to #2

Re: Recoverable Heat from sugar syrup vapour

06/19/2007 2:46 AM

HI PWSlak !

An IDEA JUST POPED IN TO MY HEAD, the maple sugar distillers in northern new england could use the heat to power there surrounding homes from the boiling pit that evaporates the water off of the maple sugar. is this being done at this point ? IF NOT THAN WHY ? THERE must hundreds of the processors up there ! BOY WHAT A LOT OF POWER !

THANKS

goldrushnugget999

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Anonymous Poster
#4
In reply to #2

Re: Recoverable Heat from sugar syrup vapour

07/19/2007 12:52 AM

HI ALL !

there was a new chemical discovery last week ! the completed process to process fructose a sugar that is made in to biogas & it is 40 percent more powerful than ethanol. similar to mid grade gasoline, it is a great breakthrough in green fuel !

this process would fit in to your companies products line, the waste could be turned into biogas to run all your future power needs.

thanks

goldrushnugget999

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