Retrofit device and method to improve humidity control of vapor compression cooling systems

Roth, Robert Paul; Hahn, David C.; Scaringe, Robert P.

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A - human necessities
A01 - agriculture
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Title: Retrofit device and method to improve humidity control of vapor compression cooling systems

Abstract

A method and device for improving moisture removal capacity of a vapor compression system is disclosed. The vapor compression system is started up with the evaporator blower initially set to a high speed. A relative humidity in a return air stream is measured with the evaporator blower operating at the high speed. If the measured humidity is above the predetermined high relative humidity value, the evaporator blower speed is reduced from the initially set high speed to the lowest possible speed. The device is a control board connected with the blower and uses a predetermined change in measured relative humidity to control the blower motor speed.

Inventors:: Roth, Robert Paul; Hahn, David C.; Scaringe, Robert P.

Issue Date:: Tue Aug 16 00:00:00 EDT 2016

Research Org.:: Mainstream Engineering Corporation, Rockledge, FL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1295763

Patent Number(s):: 9417005

Application Number:: 13/548,828

Assignee:: Mainstream Engineering Corporation (Rockledge, FL

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS

F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25D - REFRIGERATORS

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F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS
F25B1/00 - Compression machines, plant, or systems with non-reversible cycle
F25B2600/112 - of evaporator fans
F25B2700/2117 - of an evaporator
F25B49/02 - for compression type machines, plant or systems

F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25D - REFRIGERATORS
F25D17/06 - by forced circulation

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
Y02B30/70 - Efficient control or regulation technologies

Show less

DOE Contract Number:: SC0003289

Resource Type:: Patent

Resource Relation:: Patent File Date: 2012 Jul 13

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Roth, Robert Paul, Hahn, David C., and Scaringe, Robert P. Retrofit device and method to improve humidity control of vapor compression cooling systems.  United States: N. p., 2016. 
        Web.

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                    Roth, Robert Paul, Hahn, David C., & Scaringe, Robert P. Retrofit device and method to improve humidity control of vapor compression cooling systems.  United States.

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                    Roth, Robert Paul, Hahn, David C., and Scaringe, Robert P. Tue .  
        "Retrofit device and method to improve humidity control of vapor compression cooling systems".  United States.  https://www.osti.gov/servlets/purl/1295763.

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@article{osti_1295763,

  title        = {Retrofit device and method to improve humidity control of vapor compression cooling systems},

  author       = {Roth, Robert Paul and Hahn, David C. and Scaringe, Robert P.},

  abstractNote = {A method and device for improving moisture removal capacity of a vapor compression system is disclosed. The vapor compression system is started up with the evaporator blower initially set to a high speed. A relative humidity in a return air stream is measured with the evaporator blower operating at the high speed. If the measured humidity is above the predetermined high relative humidity value, the evaporator blower speed is reduced from the initially set high speed to the lowest possible speed. The device is a control board connected with the blower and uses a predetermined change in measured relative humidity to control the blower motor speed.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Aug 16 00:00:00 EDT 2016},

  month        = {Tue Aug 16 00:00:00 EDT 2016}

}

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Works referenced in this record:

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patent, July 1996

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patent, May 2000

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patent, April 2001

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Title: Retrofit device and method to improve humidity control of vapor compression cooling systems

Abstract

Citation Formats

Economizer comfort index control patent, June 1981

Method for minimizing off cycle losses of a refrigeration system during a cooling mode of operation and an apparatus using the method patent, April 1988

Humidity control for variable speed air conditioner patent, November 1991

Control system for heat pump having humidity responsive variable speed fan patent, April 1994

Humidity control device of air conditioner patent, October 1994

Humidity control method for an air conditioner which depends upon weather determinations patent, October 1994

Overcharge-undercharge diagnostic system for air conditioner controller patent, January 1995

Control for air quality machine patent, July 1995

Forced air heat exchanging system with variable fan speed control patent, July 1996

Refirgeration system with electrically controlled refrigerant storage device patent, March 1997

Humidity control thermostat and method for an air conditioning system patent, May 2000

Method of humidity control utilizing dewpoint patent, April 2001

Indoor blower variable speed drive for reduced airflow patent, September 2001

Air conditioner and method for controlling air conditioner patent, December 2002

Humidity controller patent, December 2004

Method and apparatus for controlling humidity with an air conditioner patent, February 2006

Air conditioning system with moisture control patent, March 2007

Controlling airflow in an air conditioning system for control of system discharge temperature and humidity patent, June 2007

Single integrated humidity and ventilation control in an HVAC system patent, September 2007

Variable speed control patent, June 2010

System for compressor capacity modulation patent, May 2011

Dehumidification enhancement via blower control patent, October 2013

Economizer comfort index control
patent, June 1981

Method for minimizing off cycle losses of a refrigeration system during a cooling mode of operation and an apparatus using the method
patent, April 1988

Humidity control for variable speed air conditioner
patent, November 1991

Control system for heat pump having humidity responsive variable speed fan
patent, April 1994

Humidity control device of air conditioner
patent, October 1994

Humidity control method for an air conditioner which depends upon weather determinations
patent, October 1994

Overcharge-undercharge diagnostic system for air conditioner controller
patent, January 1995

Control for air quality machine
patent, July 1995

Forced air heat exchanging system with variable fan speed control
patent, July 1996

Refirgeration system with electrically controlled refrigerant storage device
patent, March 1997

Humidity control thermostat and method for an air conditioning system
patent, May 2000

Method of humidity control utilizing dewpoint
patent, April 2001

Indoor blower variable speed drive for reduced airflow
patent, September 2001

Air conditioner and method for controlling air conditioner
patent, December 2002

Humidity controller
patent, December 2004

Method and apparatus for controlling humidity with an air conditioner
patent, February 2006

Air conditioning system with moisture control
patent, March 2007

Controlling airflow in an air conditioning system for control of system discharge temperature and humidity
patent, June 2007

Single integrated humidity and ventilation control in an HVAC system
patent, September 2007

Variable speed control
patent, June 2010

System for compressor capacity modulation
patent, May 2011

Dehumidification enhancement via blower control
patent, October 2013