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ratnakar Associate Join Date: Oct 2010 Posts: 34	Design Calculation 05/24/2012 12:53 AM
	Dear Sir, Material seeds are conveyed from one machine to Storage Silo . After coming from machine temp of material is 90 deg. cel. I want to cool it to 40deg cel . using jacketed type screw conveyor . What amount of water will requied to cool it to 40 deg cel. ? What will be the length of screw conveyor ? Residence time ? Kindly help me rgarding this calcualtion
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#1 Re: Design Calculation 05/24/2012 3:07 AM
	The residence time in the conveyor is the length of the conveyor divided by the speed of the conveyor. The length of the conveyor can be worked out from the horizontal distance between the start and end, and the height difference between start and end, and Pythagoras' Theorem. The rest depends on the specific heat of the <...material seeds...>, the flowrates of both the <...material seeds...> and the cooling water, and the cooling water inlet temperature, which is a function of the atmospheric conditions in the locality, the cooling tower size and what ever else is connected to it. __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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ratnakar Associate Join Date: Oct 2010 Posts: 34	#2 In reply to #1 Re: Design Calculation 05/24/2012 4:34 AM
	Capacity of material is 3000 Kg/ hr , Inlet Temp. of water 25 deg cel.
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#3 In reply to #2 Re: Design Calculation 05/24/2012 5:13 AM
	So? __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#4 Re: Design Calculation 05/26/2012 4:30 PM
	In principle, we also need to know: specific heat, thermal conductivity, and size of "seeds"; diameter of conveyor. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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ratnakar Associate Join Date: Oct 2010 Posts: 34	#5 In reply to #4 Re: Design Calculation 06/12/2012 7:11 AM
	Gaur Seed size - < 1mm Conveyor Dia. 300 mm Spec. Heat - 0.49 Thermal conductivity -
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PWSlack (2); ratnakar (2); Tornado (1)

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