Global to push GA events into
skip to main content

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:
; ;
Issue Date:
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

Other works cited in this record:

Apparatus for recovering and analyzing volatile refrigerants
patent, September 1998

Non-intrusive refrigerant charge indicator
patent, March 2005

Charge loss detection and prognostics for multi-modular split systems
patent, January 2007

Fault diagnostics and prognostics based on distance fault classifiers
patent, March 2007

Apparatus and method for determining refrigerant charge level
patent, December 2009

Method and system for assessing a refrigerant charge level in a vehicle air conditioning system
patent-application, December 2005

Automatic refrigerant charging apparatus
patent-application, June 2006

Detection of refrigerant charge adequacy based on multiple temperature measurements
patent-application, June 2007

Heat pump system having auxiliary water heating and heat exchanger bypass
patent-application, February 2009

Motor-driven travelling body and high-speed charge method for motor-driven travelling body
patent-application, March 2010

Method for determining refrigerant charge
patent-application, April 2010

Refrigerant charge indication
patent-application, April 2010

Power monitor for vapor compression equipment diagnostics
patent-application, June 2011

Truck trailer refrigeration system
patent-application, October 2011

High-speed charging power supply device and high-speed charging power supply method
patent-application, November 2011

System and Method for Improving Charge Accuracy by Temperature Compensation
patent-application, January 2013

Condensate-free outdoor air cooling unit
patent-application, March 2013

Air Conditioner Self-Charging And Charge Monitoring System
patent-application, June 2013

Refrigerant Charge Level Detection
patent-application, October 2013

Similar records in DOepatents and OSTI.GOV collections: