Patents by Inventor MAGED AHMED EL-SHAARAWI

MAGED AHMED EL-SHAARAWI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10337771
    Abstract: A solar-thermal refrigerant compression system employing refrigerants, such as R410a and R500, and a method of employing the system in refrigeration and air-conditioning units. The system includes a refrigerant storage tank, an evaporator, a mixing chamber, a condenser and an isochoric thermal compressor comprising a condensate heat exchanger and a heating coil connected to a solar collector field.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: July 2, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Maged Ahmed El-Shaarawi
  • Publication number: 20180031286
    Abstract: A solar-thermal refrigerant compression system employing refrigerants, such as R410a and R500, and a method of employing the system in refrigeration and air-conditioning units. The system includes a refrigerant storage tank, an evaporator, a mixing chamber, a condenser and an isochoric thermal compressor comprising a condensate heat exchanger and a heating coil connected to a solar collector field.
    Type: Application
    Filed: September 18, 2017
    Publication date: February 1, 2018
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventor: Maged Ahmed El-Shaarawi
  • Patent number: 9829223
    Abstract: Aspects of the disclosure provide a system and method for thermal-compression refrigeration. The refrigeration system includes a storage tank that stores a refrigerant condensate from a condenser, a mixing chamber that receives a refrigerant vapor from an evaporator and a portion of the refrigerant condensate from the storage tank, and produces a refrigerant mixture of the refrigerant vapor and the portion of the refrigerant condensate, and a first and second refrigerant compressors between the mixing chamber and condenser. The first and second refrigerant compressors each receives the refrigerant mixture from the mixing chamber, compresses the refrigerant mixture to produce a compressed refrigerant using thermal energy, and is capable of operating in a heater mode or a cooler mode.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: November 28, 2017
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Maged Ahmed El-Shaarawi
  • Patent number: 9791187
    Abstract: A solar-thermal refrigerant compression system employing refrigerants, such as R410a and R500, and a method of employing the system in refrigeration and air-conditioning units. The system includes a refrigerant storage tank, an evaporator, a mixing chamber, a condenser and an isochoric thermal compressor comprising a condensate heat exchanger and a heating coil connected to a solar collector field.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: October 17, 2017
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Maged Ahmed El-Shaarawi
  • Publication number: 20170292738
    Abstract: Aspects of the disclosure provide a system and method for thermal-compression refrigeration. The refrigeration system includes a storage tank that stores a refrigerant condensate from a condenser, a mixing chamber that receives a refrigerant vapor from an evaporator and a portion of the refrigerant condensate from the storage tank, and produces a refrigerant mixture of the refrigerant vapor and the portion of the refrigerant condensate, and a first and second refrigerant compressors between the mixing chamber and condenser. The first and second refrigerant compressors each receives the refrigerant mixture from the mixing chamber, compresses the refrigerant mixture to produce a compressed refrigerant using thermal energy, and is capable of operating in a heater mode or a cooler mode.
    Type: Application
    Filed: April 14, 2017
    Publication date: October 12, 2017
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventor: Maged Ahmed EL-SHAARAWI
  • Publication number: 20170219257
    Abstract: A solar-thermal refrigerant compression system employing refrigerants, such as R410a and R500, and a method of employing the system in refrigeration and air-conditioning units. The system includes a refrigerant storage tank, an evaporator, a mixing chamber, a condenser and an isochoric thermal compressor comprising a condensate heat exchanger and a heating coil connected to a solar collector field.
    Type: Application
    Filed: April 13, 2017
    Publication date: August 3, 2017
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventor: Maged Ahmed EL-SHAARAWI
  • Patent number: 9671144
    Abstract: Aspects of the disclosure provide a system and method for thermal-compression refrigeration. The refrigeration system includes a storage tank that stores a refrigerant condensate from a condenser, a mixing chamber that receives a refrigerant vapor from an evaporator and a portion of the refrigerant condensate from the storage tank, and produces a refrigerant mixture of the refrigerant vapor and the portion of the refrigerant condensate, and a first and second refrigerant compressors between the mixing chamber and condenser. The first and second refrigerant compressors each receives the refrigerant mixture from the mixing chamber, compresses the refrigerant mixture to produce a compressed refrigerant using thermal energy, and is capable of operating in a heater mode or a cooler mode.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: June 6, 2017
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Maged Ahmed El-Shaarawi
  • Patent number: 9664421
    Abstract: A solar-thermal refrigerant compression system employing refrigerants, such as R410a and R500, and a method of employing the system in refrigeration and air-conditioning units. The system includes a refrigerant storage tank, an evaporator, a mixing chamber, a condenser and an isochoric thermal compressor comprising a condensate heat exchanger and a heating coil connected to a solar collector field.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: May 30, 2017
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Maged Ahmed El-Shaarawi
  • Patent number: 8881539
    Abstract: A hybrid storage absorption refrigeration system and method. The system includes a thermal collector, a condenser, an evaporator, a cold storage tank, an absorber, a weak solution tank, a strong solution tank, a refrigerant storage tank, a refrigerant heat exchanger, and a solution heat exchanger. The method includes providing heat from a thermal collector to produce a refrigerant vapor from strong solution, condensing the refrigerant vapor, producing a refrigeration effect in an evaporator, chilling a cold storage medium in a cold storage tank, combining refrigerant vapor with weak solution in an absorber to produce strong solution, storing weak solution, storing strong solution, storing refrigerant, exchanging heat between hot and cold refrigerants in a refrigerant heat exchanger, and exchanging heat between weak solution and strong solution in a solution heat exchanger.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: November 11, 2014
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Maged Ahmed El-Shaarawi, Syed Ahmed Said, Farooq Riaz Siddiqui
  • Publication number: 20140260413
    Abstract: The absorption cooling system is capable of continuous operation both day and night while using only solar power for its basic operation. The system is an absorption type system using phase changes of aqua-ammonia and a storage system for storing chilled refrigerant for operations when solar power is not available. When solar power is available during the day, the system operates according to the principles of absorption cooling systems, and also stores a reserve of chilled refrigerant in the storage unit. The stored refrigerant then continues the absorption process during the night when solar energy is not available, thereby providing uninterrupted cooling during the day, and also at night when solar energy is not available.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 18, 2014
    Inventors: SEID AHMED MOHAMMED SAID, MAGED AHMED EL-SHAARAWI, MUHAMMAD UMAR SIDDIQUI