ShareVARIABLE FLOW CHILLED WATER SYSTEMS.
Author(s) : KIRSHENBAUM M.
Type of article: Article
Summary
THE AUTHOR ILLUSTRATES THE BAD CONTROL CHARACTERISTICS WHEN CONSTANT SPEED PUMPS DELIVER THROUGH A SYSTEM IN WHICH LOAD CONTROL IS BY 2-PORT THROTTLING VALVESAND WITH A BYPASS FROM CHILLER OUTLET TO PUMP INLET CONTROLLED BY A DIFFERENTIAL PRESSURE VALVE. THIS SYSTEM INHERENTLY LEADS TO LACK OF STABLE CONTROL RANGE. TWO ALTERNATIVE SYSTEMS ARE SHOWN AND EXPLAINED, THE PREFERRED SYSTEM HAVING PRIMARY/SECONDARY PUMPING AND A BYPASS CONTROL AT THE FAR END OF THE MAINS. D.W.H.
Details
- Original title: VARIABLE FLOW CHILLED WATER SYSTEMS.
- Record ID : 1988-1150
- Languages: English
- Source: ASHRAE Journal - vol. 29 - n. 8
- Publication date: 1987
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
- Themes: Other air-conditioning equipment
- Keywords: Automation; Pump; Air conditioning; Chilled water
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- Author(s) : MCKENZIE A. R.
- Date : 1983/10
- Languages : English
- Source: Aust. Refrig. Air Cond. Heat. - vol. 37 - n. 10
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- Author(s) : MOE J.
- Date : 1987
- Languages : English
- Source: PSVARE J. - vol. 3 - n. 1
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Airconditioning en circulatiepompen.
- Author(s) : ALKEMA J. P.
- Date : 2006/03
- Languages : Dutch
- Source: Koude & Luchtbehandeling - vol. 99 - n. 3
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Advanced chiller optimal control.
- Author(s) : ANWAR A.
- Date : 1994/03
- Languages : English
- Source: AIRAH J. - vol. 48 - n. 3
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LES CENTRALES FRIGORIFIQUES URBAINES. L'EXEMPLE...
- Author(s) : VIOLETTE A.
- Date : 1983
- Languages : French
- Source: La revue pratique du froid et du conditionnement d'air - vol. 38 - n. 562
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