A mobile platform biomass harvester has a header, a biomass processor, a storage container, a guidance system, an engine, an electric generator, and a guidance system. The header harvests biomass. The biomass processor includes a shredder, a press, a dryer, and a densifier. The densifier compacts the biomass into a multitude of compressed biomass pieces. The storage container receives compressed biomass pieces from the biomass processor. The guidance system guides the mobile platform at a speed determined by the operating capacity of the mobile platform. The engine generates shaft power. The electrical generator converts the shaft power to electricity to power the guidance system.

Described herein are embodiments of systems and methods for oxidizing gases. In some embodiments, a reaction chamber is configured to receive a fuel gas and maintain the gas at a temperature within the reaction chamber that is above an autoignition temperature of the gas. The reaction chamber may also be configured to maintain a reaction temperature within the reaction chamber below a flameout temperature. In some embodiments, heat and product gases from the oxidation process can be used, for example, to drive a turbine, reciprocating engine, and injected back into the reaction chamber.

A method and system for cost effectively converting a feedstock using thermal plasma, or other styles of gassifiers, into to a feedwater energy transfer system. The feedstock can be any organic material, or fossil fuel. The energy transferred in the feedwater is converted into steam which is then injected into the low turbine of a combined cycle power plant. Heat is extracted from gas product issued by a gassifier and delivered to a power plant via its feedwater system. The gassifier is a plasma gassifier and the gas product is syngas. In a further embodiment, prior to performing the step of extracting heat energy, there is provided the further step of combusting the syngas in an afterburner. An air flow, and/or EGR flow is provided to the afterburner at a rate that is varied in response to an operating characteristic of the afterburner. The air flow to the afterburner is heated.