Portable refrigerant charge meter and method for determining the actual refrigerant charge in HVAC systems

Title: Portable refrigerant charge meter and method for determining the actual refrigerant charge in HVAC systems

A refrigerant charge meter and a method for determining the actual refrigerant charge in HVAC systems are described. The meter includes means for determining an optimum refrigerant charge from system subcooling and system component parameters. The meter also includes means for determining the ratio of the actual refrigerant charge to the optimum refrigerant charge. Finally, the meter includes means for determining the actual refrigerant charge from the optimum refrigerant charge and the ratio of the actual refrigerant charge to the optimum refrigerant charge.

Inventors:: Gao, Zhiming; Abdelaziz, Omar; LaClair, Tim L.

Issue Date:: 2017-08-08

OSTI Identifier:: 1374547

Assignee:: UT-Battelle, LLC ORNL

Patent Number(s):: 9,726,410

Application Number:: 14/828,595

Contract Number:: AC05-00OR22725

Resource Relation:: Patent File Date: 2015 Aug 18

Research Org:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

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