Disclosed is a control system for controlling the feed of a solid fuel in a combustion process. The system includes a control unit which is adapted to communicate by way of a communications link in the system, to receive from online measuring instruments online measurement data regarding a fuel coming from a fuel reception unit, and to control a feeding unit for delivering the measured fuel into a fuel silo on the basis of its content model and measurement data.

Disclosed is an outdoor cooking appliance with a control mechanism for controlling a heating system to provide heat to a cooking chamber of the appliance within a more precise range in temperature. For example, fuel provided to a burn pot for combustion to reach a range of a target temperature of the cooking chamber. A heating element provides additional heat to bring the temperature of the cooking chamber closer to the target temperature.

A stove (1) having a combustion chamber (2) supplied by one or more air supply paths (9, 14, 16). One or more valves (11, 15, 17) are provided for controlling airflow through the one or more air supply paths (9, 14, 16). A temperature sensor (4) is used to determine the air temperature associated with the combustion chamber (2), and a flame sensor (3) is used to determine the burn intensity of a fuel in the combustion chamber (2). A controller (5) controls the one or more valves (11, 15, 17) to adjust the airflow through the one or more air supply paths (9, 14, 16) based on inputs from the flame and temperature sensors (3, 4).

Provided is a correlation deriving method including the steps of: generating coal ash by incinerating coal; generating sintered ash by heating the coal ash at a predetermined heating temperature within a range of a combustion temperature of a coal burning boiler; measuring hardness of the sintered ash; measuring an exhaust gas temperature exhibited when coal which is to have the hardness is burnt in the coal burning boiler; and deriving a correlation between the hardness and the exhaust gas temperature.

Heating chamber for a portable stove comprises a fixation mechanism for securing, in a leak-free manner, a container such as a bottle to a first surface of the heating chamber; one or more compartments fillable with liquid, typically water, dispensed from the container; a pressure compensation valve; and an outlet configured to release the liquid from the heating chamber.

A wood stove monitoring and control device can include a mounting flange mountable to a chimney exhaust pipe of a wood stove. The device can include a ring removably mountable on top of the mounting flange, where the flange is suitably positioned vertically along the exhaust pipe so that the ring is positioned at least partially above an end of the exhaust pipe. The device includes an optical beam source disposed on the ring, and which generates and outputs an optical beam. The device includes an optical sensor positioned on the ring opposite the optical beam source to detect the optical beam output by the optical beam source as the optical beam passes through smoke exhausted by the wood stove through the exhaust pipe. The device can include a temperature probe disposed on the ring to measure a temperature of heat exhausted by the wood stove through the exhaust pipe.

A carbon sequestration system includes a furnace having an oxy-combustion burner, a mill configured to receive a fuel and to provide the fuel to the oxy-combustion burner, a waste heat recovery exchanger configured to receive a flue gas from the furnace, the flue gas ultimately supplied to one or more of an overfire air port of the furnace, the oxy-combustion burner, the mill, and a CO.sub.2 purification unit, the CO.sub.2 purification unit configured to produce a purified CO.sub.2 stream.

There is provided a control device of a coal pulverizer which enables estimation of a coal output with a precision suited for a purpose. In a control device of a coal pulverizer which pulverizes coal by the coal pulverizer and estimates coal output by which the pulverized coal is output to a boiler, the control device includes a main operation circuit which calculates a command signal associated with a coal feed rate on the basis of detection data from a boiler or a power generator connected to the boiler, and an additional control unit which calculates the deviation between a standard coal output pattern preset in the coal pulverizer, and a current coal output pattern, and adds a calculation result by the additional control unit to the main operation circuit as a correction signal.

The disclosure provides for a device for selectively agitating briquettes on a grill supporting plate. The device includes a variable frequency vibrational device, a power source, and a control circuit that controls the vibrational device at selected frequencies to create various Chladni patterns in the plate and, therefore, heating patterns over the surface of a briquette-supporting pan. The plate supports one or more pieces of charcoal and the device is integrated into the pan. When turned on, the vibrational device vibrates at a selected frequency. This vibration is translated to the briquette-supporting plate and causes different charcoal briquettes to selectively vibrate. The device is capable of selectively activating or pixilating briquettes to generate higher temperatures over different surface areas of the plate when the grill is cooking one or more pieces of food requiring different degrees of grilling or cooking.

A method and apparatus for controlling a process in a system comprising pre-processing of a raw material, processing the pre-processed raw material and acquisition of the result of the processing of the pre-processed raw material, comprising the steps of: capturing input and output variables of the pre-processing; capturing output variables of the processing of the pre-processed raw material; creating a first, second and third process model for at least two different time scales, which describes the effects of adapting the pre-processing of raw material, the effects of adapting the processing of the pre-processed raw material, the effects of adapting the pre-processing of raw material and adapting the processing of pre-processed raw material on the output variables of the processing of pre-processed raw material; wherein the process in the system is controlled using the prediction of the process model which currently provides the best predictions for the process in the system.