Energy benefits of pumped antifreeze circulation for refrigeration
- Authors: Kokorin O.Y., Dementiev V.V.1
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Affiliations:
- Firm "Grundfos"
- Issue: Vol 89, No 10 (2000)
- Pages: 7-9
- Section: Articles
- URL: https://journal-vniispk.ru/0023-124X/article/view/107793
- DOI: https://doi.org/10.17816/RF107793
- ID: 107793
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Abstract
The energy benefits of the application ofpump circulation of antifreeze for refrigeration supply of air conditioning systems are shown. A calculation using a special nomogram which demonstrated a real advantage of inclusion of the pump circulation of the antifreeze into the scheme was carried out.
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##article.viewOnOriginalSite##About the authors
O. Ya. Kokorin
Author for correspondence.
Email: info@eco-vector.com
Doctor of Engineering, Sciences, Prof.
Russian FederationV. V. Dementiev
Firm "Grundfos"
Email: info@eco-vector.com
cand. tech, science
Russian Federation
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Pic. 1. Schematic diagram of year-round refrigeration supply of process equipment: 1 refrigeration machine; 2 - heat exchanger-cooler of glycol with outside air; 3 - glycol pump circulation circuit for cooling the condenser of the refrigeration machine; 4 - supply and return collectors of glycol circulation through the condensers of refrigeration machines; 5 - glycol pump circulation circuit; 6 - supply and return manifolds for glycol circulation through air coolers; 7 - plate heat exchanger for cooling process water with glycol; 8 - circuit of pumping water circulation through the evaporator of the refrigeration machine; 9 supply and return collectors for the circulation of water cooled in the evaporators of refrigeration machines; 10 - pump circulation circuit of water cooled by refrigeration machines; 11 - plate heat exchanger for cooling process water with the help of refrigeration machines; 12 - pipelines for pumping circulation of cooling process water; 13 - pump circulation circuit for cooling the plate heat exchanger
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Рис. 2. Номограмма для нахождения коэффициентов учета повышения напора Л1( и мощности электродвигателя насоса при работе на антифризе по сравнению с данными параметрами при работе на воде. Стрелками показано построение для режимов: подача (по воде) Qw = бОм/ч; 7 - 30м; подача (по циркулирующему антифризу) Qtf = 60м/ч.
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