MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202641110304 A) filed by National Institute Of Ocean Technology on September 14, 2026, for Ballast-Control System For Manned Submersible And Method Of Operation Thereof.
Inventors include Dharmaraj, Sathia Narayanan; Shanmugam, Karthikeyan; Chowdhury, Tamshuk; Munusamy, Murugesan; Raju, Ramesh; Arumugam, Vadivelan; Narayanasamy, Vedachalam; Sethuraman, Ramesh; and Ramakrishnan, Balaji.
The application for the patent was published on September 25, 2026, under issue no. 39/2026.
Abstract: ABSTRACT OF THE INVENTION BALLAST-CONTROL SYSTEM FOR MANNED SUBMERSIBLE AND METHOD OF OPERATION THEREOF A ballast- control system (110) and method (600) of operation for manned submersible are provided. System (110) includes ballast-tank arrangement (BTA) (202) comprising ballast-tanks, pneumatic-arrangement (204) comprising compressed-air sources and a plurality of valves (208) to vent air from ballast-tanks to permit flooding of ballast-tanks with water, and to introduce compressed-air into ballast-tanks to expel water therefrom. System (110) includes sensor-arrangement (206) to generate sensor data representing operational-parameters BTA and pneumatic-arrangement, and processor (130) configured to implement digital-twin (130) of BTA and pneumatic-arrangement, comprising geometric-model of ballast-tank arrangement (224), pneumatic system model (226) representing components of pneumatic- arrangement, and experimentally derived process parameters for operation of ballast-control system, determine predicted-values of operational-parameters during descent and ascent operation, including prediction of descent-rate, time taken to flood ballast-tank arrangement for descent initiation, and freeboard attained at end of ascent operation. The measured values of operational-parameters from sensor-arrangement, compare predicted-values with measured values; and generate output.
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