General Electric Company

Transportation IP Holdings, LLC

Ge Global Sourcing LLC

Ravichandra Srinivasa Jupudi

Wei Wei

Adam Edgar Klingbeil

Roy James Primus

Vitali Victor Lissianski

Vladimir Zamansky

Kevin Paul Bailey

Bhaskar Tamma

Kevin McElhaney

Boris Nikolaevich Eiteneer

Dattatraya Somnath Bhagoji

Ramanathan Subramanian

Richard Scott Bourgeois

Hongmei Zhang

A piston crown for a combustion system is disclosed. The piston crown includes a piston bowl having a circumferential recess and a plurality of first recesses arranged spaced apart from each other along a circumferential direction. The circumferential recess is disposed proximate to a circumference of the piston crown. Each recess of the plurality of the first recesses extends between a center of the piston crown and the circumferential recess, and a width and a depth of each recess of the plurality of first recesses are extended along a radial direction for an entire length of each recess of the plurality of first recesses.

Piston crown for a combustion system and an associated method thereof

A coal gasifier is retrofitted to achieve multiple advantages such as reduced oxygen consumption, reduced CO2 and NOx emissions, better H:C ratio, better carbon conversion etc. This is achieved by dividing the coal into at least two zones and modifying the gasifier and operating it as described. The coal is injected into a first zone, configured to devolatilize a substantial portion of the injected coal to produce coal char and volatiles. The operation is tuned to substantially consume the oxidant injected in the first zone. A low-calorific-value, high oxidant feedstock is injected in second zone of the gasifier. The devolatilization of the low-calorific-value, high oxidant content feedstock provides the oxygen containing compounds which gasify at least a portion of the coal char generated in the first zone.

Method of reducing oxygen requirement of a coal gasifier

Method of retrofitting a coal gasifier

A method of operating a gasifier is provided that envisions dividing the gasifier into multiple zones. A high-calorific-value feedstock with an oxidant is injected in the first zone. The gasifier is operated to substantially consume the oxidant within the first gasification zone. The method of operating the gasifier further includes injecting a low-calorific-value, high-oxygen-content feedstock in a second gasification zone. The low-calorific-value, high-oxygen-content feedstock is devolatilized and gasified in second zone. A method of operation provides for a synergistic co-gasification of the high-calorific-value feedstock and the low-calorific-value, high oxidant content feedstock. The method provides for specific control actions that enable operation of multi-fuel, multizone gasifier.

Method of operating a gasifier

A gas evolving bipolar electrolysis system is provided which includes multiple cells. Each cell further includes a cathode, an anode, at least one inlet and at least one outlet for flow of electrolyte and the cathode and the anode are configured to maintain a variable interelectrode gap between the cathode and the anode. In some embodiments, the cell includes a membrane disposed between the electrodes and in some other embodiments the electrodes are coated with electrocatalysts configured to provide uniform current density on the electrode surface.

Gas evolving electrolysis system

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Bengaluru, India

Ravichandra Srinivasa Jupudi