Patents by Inventor Mohammad A. R. Biswas

Mohammad A. R. Biswas 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).

  • Operational control of fuel cells
    Patent number: 10211470
    Abstract: Various examples are provided for operational control of fuel cells. In one example, among others, a system for controlling a fuel cell includes a stack temperature controller in cascade with a liquid level controller. The liquid level controller can provide a control output based at least in part upon an indication of a liquid level of a liquid fuel tank and a level reference. The stack temperature controller can provide a fan speed control output based at least in part upon an indication of a stack temperature of the fuel cell and the control output of the liquid level controller. In another example, a system for estimating methanol concentration of a fuel cell system includes a state observer that generates an estimate of the methanol concentration of fuel provided to a direct methanol fuel cell based upon a plurality of states of the fuel cell system.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: February 19, 2019
    Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
    Inventors: Oscar D. Crisalle, Mohammad A. R. Biswas, Shyam Prasad Mudiraj, William E. Lear, Jr.
  • OPERATIONAL CONTROL OF FUEL CELLS
    Publication number: 20160020476
    Abstract: Various examples are provided for operational control of fuel cells. In one example, among others, a system for controlling a fuel cell includes a stack temperature controller in cascade with a liquid level controller. The liquid level controller can provide a control output based at least in part upon an indication of a liquid level of a liquid fuel tank and a level reference. The stack temperature controller can provide a fan speed control output based at least in part upon an indication of a stack temperature of the fuel cell and the control output of the liquid level controller. In another example, a system for estimating methanol concentration of a fuel cell system includes a state observer that generates an estimate of the methanol concentration of fuel provided to a direct methanol fuel cell based upon a plurality of states of the fuel cell system.
    Type: Application
    Filed: March 11, 2014
    Publication date: January 21, 2016
    Applicant: University of Florida Research Foundation, Inc.
    Inventors: Oscar D. Crisalle, Mohammad A. R. Biswas, Shyam Prasad Mudiraj, William E. Lear, JR.