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02-08-2013, 07:02 AM #1
the compressor's cooling capacity difference from Bitzer selction software
Hi,all
The bitzer software, under 2-stage semi-herm. reciprating compressor, they have two cooling capacity data, Qo & Qo*, and they are different.
What's the differnce between them? The Bitzer's paper catolog always list Q0*, so what's the fuction of Qo?
Thanks
bitzer software 01.jpg
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02-08-2013, 10:10 AM #2
Re: the compressor's cooling capacity difference from Bitzer selction software
Different standards of calculation by the look of things, the Qo* is calculated to EN 2900 standards.
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02-08-2013, 12:46 PM #3
Re: the compressor's cooling capacity difference from Bitzer selction software
Then what the standard for the Qo? what's Qo used for?
Regards
Jiazi
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03-08-2013, 06:12 AM #4
Re: the compressor's cooling capacity difference from Bitzer selction software
The first is with the inputs you gave in and the second wit asterisk is calculated using the EN2900 standard, mostly other SH and SC than you specified in your inputs; EN2900 uses standard values.
Last edited by Peter_1; 20-09-2013 at 02:43 PM.
It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
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04-08-2013, 02:28 PM #5
Re: the compressor's cooling capacity difference from Bitzer selction software
Thank you all for your kindly input
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20-09-2013, 11:14 AM #6
Re: the compressor's cooling capacity difference from Bitzer selction software
While selecting compressor maintainthe diffrence between evaporating & suction gas temp at about 20.
Dd koranne