68results about How to "Reduce heat output" patented technology

Certain embodiments provide a system configured to heat a subsurface formation. The system includes an electrical power supply. A heater section includes one or more electrical conductors electrically coupled to the electrical power supply. At least one of the electrical conductors includes ferromagnetic material. The heater section provides a first heat output when time-varying electrical current is applied to the heater section below a selected temperature, and a second heat output approximately at and above the selected temperature during use. The second heat output is reduced compared to the first heat output. The system is configured to allow heat to transfer from the heater section to a part of the formation. The electrical power supply is configured to provide a relatively constant amount of time-varying electrical current that remains within about 15% of a selected constant current value when a load of the electrical conductors changes.

A cooking appliance includes a controller for establishing a plurality of operating modes for heating an oven cavity. Specifically, the controller establishes one of a pre-heat mode, a ready mode, a first low power mode and a second low power mode for controlling a temperature of the oven cavity. Upon selecting a temperature for the oven cavity, the controller operates a radiant heating device, a convection fan and a convection heating device at full power to establish the selected temperature. After the selected temperature is achieved, the controller switches to a ready mode and reduces heat output of both the radiant heating device and the convection heating device, while also reducing fan speed. After respective periods of time in which a door of the appliance is not opened, the controller switches to first and second low power modes to conserve energy.

The invention describes a pressure detection system for a pressure cooker, having a sensor (17) for detecting a pressure prevailing inside the pressure cooker by means of measured values, a computer unit (16) connected to the sensor (17), and a display (3, 4), wherein the computer unit (16) is designed to evaluate the measured values supplied by the sensor (17) and to establish whether at least one first threshold value (S1) has been reached. In order to indicate use-related wear, the computer unit (16) is further designed to continue a counter when the measured value reaches the first threshold value (S1) and to output a notification on the display (3, 4) when a predefined value of the counter is reached.

In general, this invention involves various improvements relating to food service apparatus, including an energy-compensation feature to compensate for the transfer of heat from one food-holding compartment to another food-holding compartment, and an energy-limit feature for preventing overheating of the apparatus in the event it is incorrectly programmed by an operator, for example.

A new adiabatic scanning calorimeter allows the thermal mass of a high-pressure reaction vessel to be dynamically compensated during a test. This allows the effective Φ factor for the experiment to be reduced to 1.0 without the use of complex pressure balancing equipment. Endothermic events can be quantified and sample specific heats can be measured. The time required for test completion is much shorter than for conventional adiabatic calorimeters, thus considerably improving apparatus productivity. The sensitivity to exotherm detection is at least as good as existing adiabatic calorimeters employing the Heat-Wait-Search strategy, but does depend on the temperature-scanning rate. In addition, the heat of reaction is obtained without reference to the heat capacity of the sample, pressure is measured continuously, reactants may be injected into the test vessel and the sample can be mixed during the test.

The invention describes a pressure detection system for a pressure cooker, having a sensor (17) for detecting a pressure prevailing inside the pressure cooker by means of measured values, a computer unit (16) connected to the sensor (17), and a display (3, 4), wherein the computer unit (16) is designed to evaluate the measured values supplied by the sensor (17) and to establish whether at least one first threshold value (S1) has been reached. In order to indicate use-related wear, the computer unit (16) is further designed to continue a counter when the measured value reaches the first threshold value (S1) and to output a notification on the display (3, 4) when a predefined value of the counter is reached.

The Autonomous Rechargeable Heated Child's Mat is totally portable and forms an integrated yet detachable part of the child's pushchair, buggy or pram (or similar conveyance). Rechargeable embedded power cells power the system for over 4 hours at a full heat output. The system is fully controllable from the parent or operator's mobile telephone or tablet device via bidirectional wireless communication. Simply seat or lay the child in the pushchair, buggy or pram (or similar conveyance) as normal. Using a dedicated application on the mobile device the child will quickly and safely be warmed to a controlled temperature as set by the parent or operator. The longest of excursions can now be made with the child in complete comfort and warmth. A powerful, intelligent and safe mobile heating system that is simple to operate and control wirelessly with simplicity.

An illumination system includes a plurality of radiation generating sources, such as LED dies. A corresponding plurality of optical waveguides is also provided, with each waveguide having a first and a second end, with each first end being in optical communication with the corresponding LED die. An array of corresponding passive optical elements is interposed between the plurality of LED dies and the corresponding first ends of the plurality of optical waveguides. The illumination system provides for substantially high light coupling efficiency and an incoherent light output that can appear to the human observer as arising from a single point of light. In addition, the light can be output remotely at one or more locations and in one or more directions.

A motor drive with devices for translating the rotary movement of an output shaft (44) into a reciprocating linear movement, preferably for driving a reciprocating transporting device (4; 5, 6). The latter comprises catches (9; 9.1, 9.2), which engage in one direction and not in the other direction, in order to transport a receptacle (16) for items for washing. The transporting device comprises an articulated transporting frame (4), of which the transporting rails (5, 6) can be moved in opposite directions to one another.

A device and a method are provided, for shrinking a protective element (101) shrinkable by means of the supply of heat onto an optical waveguide (100). The method involves generating thermal radiation, reflecting it and focusing it onto a focus zone in which the protective element (101) is held. The device contains a heating element (10), which generates thermal radiation, a reflector (30), which focuses the thermal radiation emitted by the heating element onto the focus zone, and a mount (20), by means of which the protective element (101) can be held in the focus zone.

The invention discloses a preparation method of an ultrathin lithium metal negative electrode, and belongs to the technical field of lithium primary batteries. The thickness of ultrathin lithium metalis less than 100[mu]m; and the preparation method of the ultrathin lithium metal negative electrode is characterized by comprising the following steps: step 1, cutting an ultrathin lithium strip intoultrathin lithium sheets according to requirements; step 2, cutting a copper foil into tabs according to requirements; step 3, lithium sheet treatment: brushing a lithium sheet and tab bonding area with at least one of natural bristles, horse hairs, sisal hemp, soft plastic fibers, nylon, polypropylene, polyethylene and PBT to remove a lithium sheet passivation layer in the tab area; and step 4,negative electrode piece pressing: adhering a current collecting tab to the treated lithium sheet area, adopting plane pressing equipment and setting equipment pressure; wrapping the upper part and the lower part of the prepared negative electrode piece with polypropylene films respectively; and placing the negative electrode piece between an upper plate and a lower plate of a flat plate pressingmachine, and pressing to obtain the tightly combined negative electrode piece.

A mammograph is provided. The mammograph includes a source of X-rays; a detector of X-rays, the source being configured to emit at least one beam of X-rays to the detector; and an optic control device configured to control the direction of X-rays emitted by the source such that the X-rays emitted by the source are substantially parallel to one another.

The invention provides an automation welding system method of hollow stationary blades of a steam turbine. By adopting the method, the existing manual welding method is replaced, the labor intensity of workers is reduced, the working efficiency is improved, the difficulty that welding equipment is hard to recognize and adjust a welding position owning to consistency difference before groove welding of an inner arc sheet and a back arc sheet of the hollow stationary blade is overcome, the problem that common automatic welding equipment can not adjust the welding position in real time accordingto the features of a groove of a workpiece is effectively solved, the process flow of the existing manual welding is improved, the number of welding seams is reduced and welding deformation is reduced. The inner arc sheet and the back arc sheet of the hollow stationary blade of the steam turbine are assembled on a fixture and fixed. The automation welding system method is characterized in that preprocessing is carried out to a groove of a steam outlet edge of the hollow stationary blade firstly, then balance arc process welding is carried out to the steam outlet edge and a steam inlet edge ofthe hollow stationary blade of the steam turbine by adopting a welding robot system with arms and gas shielded arc welding equipment with a consumable electrode, a laser tracker with a scanning function is arranged in front of a welding gun of the arm of a welding robot, and in welding, the laser tracker is utilized to scan the groove corner lines of the hollow stationary blade with thin sheets, and the position of the welding gun can be automatically adjusted according to the change of the features of the groove so as to finish the welding operation finally.