Abstract: An adaptive spray cleaning system includes a gas tunnel having a gas inlet and a gas outlet. A sprayer assembly is between the gas inlet and the gas outlet. The sprayer assembly includes at least one sprayer array having at least one spray nozzle. The at least one spray nozzle is directed into the gas tunnel. The sprayer assembly includes at least one variable spray configuration characteristic. A sprayer assembly control system is coupled with the at least one sprayer array. The sprayer assembly control system includes one or more sensors proximate at least one of the gas inlet or the gas outlet. The one or more sensors are configured to measure a pollutant characteristic. A controller is in communication with the one or more sensors and the sprayer assembly. The controller is configured to control the at least one variable spray configuration characteristic according to the measured pollutant characteristic.

Abstract: A system comprises an injection well for accessing a reservoir containing a native fluid comprising a hydrocarbon. The reservoir is located below one or more caprocks, is at a first temperature, and is accessible without using large-scale hydrofracturing. The system further includes a production well in fluid communication with the reservoir, a supply apparatus configured to feed a non-water based working fluid at a second temperature that is lower than the first temperature through the injection well to the reservoir. The working fluid mixes with the native fluid to form a production fluid comprising at least a portion of the working fluid and at least a portion of the hydrocarbon at a third temperature that is higher than the second temperature. An energy recovery apparatus in fluid communication with the productions well converts energy contained in the production fluid to electricity, heat, or combinations thereof.

Abstract: A system comprises an injection well for accessing an underground reservoir having a first temperature. The reservoir is located below a caprock and is accessible without using large-scale hydrofracturing. The injection well includes an injection well reservoir opening in fluid communication with the reservoir. The system also includes a production well having a production well reservoir opening in fluid communication with the reservoir. A working-fluid supply system provides a non-water based working fluid to the injection well at a second temperature lower than the first temperature. Exposure of the non-water based working fluid to the first temperature produces heated non-water based working fluid capable of entering the production well reservoir opening. An energy converting apparatus connected to the productions well converts thermal energy contained in the heated non-water based working fluid to electricity, heat, or combinations thereof.

Abstract: A system comprises an injection well for accessing a reservoir containing a native fluid comprising a hydrocarbon. The reservoir is located below one or more caprocks, is at a first temperature, and is accessible without using large-scale hydrofracturing. The system further includes a production well in fluid communication with the reservoir, a supply apparatus configured to feed a non-water based working fluid at a second temperature that is lower than the first temperature through the injection well to the reservoir. The working fluid mixes with the native fluid to form a production fluid comprising at least a portion of the working fluid and at least a portion of the hydrocarbon at a third temperature that is higher than the second temperature. An energy recovery apparatus in fluid communication with the productions well converts energy contained in the production fluid to electricity, heat, or combinations thereof.

Abstract: A geothermal energy generation system comprises one or more injection wells for accessing one or more reservoirs having a first temperature, wherein the reservoirs are located below one or more caprocks and are accessible without using large-scale hydrofracturing. Each of the injection wells has an injection well reservoir opening, and one or more production wells each having a production well reservoir opening. A non-water based working fluid can be provided to the injection wells at a second temperature lower than the first temperature. Exposure of the working fluid to the first temperature can produce heated working fluid capable of entering one or more production wells. An energy converting apparatus is connected to each of the one or more injection wells and the one or more productions wells and thermal energy contained in the heated working fluid can be converted to electricity, heat, or combinations thereof, in the energy converting apparatus.

Abstract: Novel carbon dioxide-based geothermal energy generation systems, i.e., carbon plume geothermal (CPG) systems, and methods are provided. With the novel systems and methods described herein, geothermal energy can now be provided at lower temperatures and at locations other than hot, dry rock formations, without negatively impacting the surrounding area through use of large-scale hydrofracturing. Use of a carbon dioxide-based geothermal system further provides a means for sequestering and storing excess carbon dioxide, rather than having it released to the atmosphere.

Abstract: Heat flux sensors respectively painted black and white and mounted to a passive solar energy window intercept solar radiation and change the temperature of part of the window. The sensors, and differentially connected thermocouples attached to them, couple data to an electronic computer by which the solar radiation, reradiation, and conduction/convection thermal loss through the undisturbed balance of the window can be deduced. The computer outputs the net energy transfer NET to a recorder, a two-state indicator, and a window insulation control unit. The circuitry of the control unit responds to an ordinary thermostat and the NET from the computer to produce a condition signal, senses the position of the insulation, and repositions the insulation when necessary in response to the condition signal.