A METHOD FOR OPERATING A VAPOUR COMPRESSION SYSTEM USING A SUBCOOLING VALUE

WIPO Patent Application WO/2012/000501

A3

A method for operating a vapour compression system (1) is disclosed. The vapour compression system (1) comprises a compressor (2), a condenser (3), an expansion device (4), e.g. in the form of an expansions valve, and an evaporator (5) arranged along a refrigerant path. The method comprises the steps of: obtaining a superheat value being representative for the superheat of refrigerant entering the compressor (2); obtaining a subcooling value being representative for the subcooling of refrigerant entering the expansion device (4); and operating the expansion device (4) on the basis of the obtained superheat value and on the basis of the obtained subcooling value. It is an advantage that the subcooling value is taken into account when operating the expansion device (4), because variations in the subcooling value has significant influence on the refrigerating capacity of the evaporator (5) at a given opening degree of the expansion device (4). A more stable operation of the vapour compression system (1) is therefore obtained when taking the subcooling value into consideration. The vapour compression system (1) may advantageously further comprise an internal heat exchanger (6), e.g. in the form of a suction line heat exchanger.

SCHMIDT FREDE (DK)

PCT/DK2011/000076

May 10, 2012

June 29, 2011

Click for automatic bibliography generation  

DANFOSS AS (DK)
SCHMIDT FREDE (DK)

F25B40/00; F25B41/06; F25B49/02

WO2007130769A2

2007-11-15

JPH06137691A	1994-05-20
JP2001248920A	2001-09-14
EP1620684A1	2006-02-01
JP2001263831A	2001-09-26
JP2006071211A	2006-03-16
US6164086A	2000-12-26
JPH05223358A	1993-08-31
US3264837A	1966-08-09
EP1965160A2	2008-09-03
US5626026A	1997-05-06

DANFOSS A/S (Nordborgvej 81 L25, Nordborg, DK)

View/Download PDF      PDF Help

Previous Patent: METHOD AND APPARATUS FOR PRODUCING A NANOSTRUCTURED OR SMOOTH POLYMER ARTICLE

Next Patent: ROCKING DEVICE AND BIOREACTOR