7 results about "Extreme heat" patented technology

The application provides a multifunctional continuous flow heterogeneous or homogeneous catalytic series reaction device, which comprises a raw material gas supply pipeline, a first gas purification device, a first constant-temperature bubbling gas redispersion device, a second constant-temperature bubbling gas redispersion device, a light-concentrating photothermal reactor, a second gas purification device, a reaction gas velocity cooling device, a gas-liquid separation device and a gas collection device which are sequentially connected in pipeline along the fluid flow direction, and a fluid directional control system. Through the composite heat-resistant cavity structure and the light-heat-flow collaborative design, the device realizes the tolerance to extreme heat environment and the elimination of local hot spots, and the service life is improved by more than 3 times; through the three-stage purification process and the multi-parameter independent control system (temperature / pressure / flow rate / light intensity), the stability of the oxygen-sensitive reaction is ensured, and the reaction selectivity is more than 95%. The device solves the engineering scale-up problem in the light-concentrating catalysis field, the mass transfer efficiency is improved by 5-8 times compared with the batch system, and provides an expandable technical platform for the continuous production of solar fuels.

The invention discloses an intelligent self-adaptive multi-layer heat insulation assembly applied to spacecraft heat control and based on electrostatic suspension and graphene aerogel. The intelligent self-adaptive multi-layer heat insulation assembly comprises an intelligent color-changing outer protection layer, a stacked reflection layer, an electrostatic suspension control system and other core structures. Interlayer non-contact suspension of the assembly is realized through electrostatic repulsion, and solid contact heat conduction is eliminated; the graphene aerogel supporting frame is used as a standby support and has ultralow thermal conductivity; the intelligent color changing layer can dynamically switch heat preservation / heat dissipation states, the fiber grating sensor monitors temperature change and strain in real time, and the sensing and control system regulates and controls all the systems in a coordinated mode according to the temperature change and the strain. Compared with a traditional heat insulation assembly, the heat insulation performance of the heat insulation assembly is improved by nearly 90%, the heat insulation assembly is still far superior to a traditional product during electrostatic failure, the heat insulation assembly further has the active heat management capacity and can adapt to the deep space extreme heat environment, efficient intelligent heat management of spacecrafts is achieved, and related assemblies can also be applied to various spacecrafts.

This application discloses a gradually expanding printed circuit board heat exchanger core and heat exchanger adapted to two-phase flow. It includes a cover plate, a bottom plate, a cold side plate layer, and a hot side plate layer. The cold side gradually expanding channel adopts a flow channel structure with progressively increasing width. The cross-sectional area of ​​the flow channel dynamically adapts to the volume change of the gas-liquid phase transition, reducing pressure drop fluctuations and bubble aggregation caused by gas phase expansion. The parallel layout of the diversion channel and the gradually expanding channel, combined with the porous structure of the inner wall, optimizes the uniformity of medium distribution and significantly improves flow stability through graded distribution and enhanced surface wettability. The hot side heat exchange channel incorporates turbulence ribs, which enhance convective heat transfer and phase change heat transfer by disrupting the thermal boundary layer and inducing turbulence. It supports heterogeneous working fluid combinations such as supercritical CO2-water and liquid hydrogen-liquid oxygen. This heat exchanger can improve heat exchange efficiency while reducing pressure drop, balancing compactness, reliability, and wide operating condition adaptability. It achieves optimized two-phase flow and efficient heat exchange, meeting the extreme heat exchange requirements of aerospace, new energy, and other fields.

A shielding device for forward facing and / or windshield mounted / located sensors on an automobile protects sensors in close proximity to the windshield from temperature extremes associated with sunlight and extreme cold or wind. Modern automobiles tend to locate forward-focused collision avoidance sensors (sensors) around the perimeter of the windshield, typically at a central, uppermost portion. The windshield is subject to a substantial solar load, often emphasized by the angle of the windshield in direct sunlight. A reflective, insulating substrate disposed over the windshield mitigates extreme heat that can damage sensors in thermal communication with the windshield surface. The substate is affixed via the door seam, magnetic attachment, or engagement with the side mirrors or wipers.

The application relates to the technical field of power system safety evaluation, and discloses a demand regulation method and system for a power system under extreme heat waves, which comprises the following steps: obtaining multi-dimensional operation comprehensive data of a power system under an extreme heat wave scenario; constructing a robustness evaluation index system of the power system, so as to quantitatively obtain index values respectively representing load guarantee capability, new energy consumption capability, market stability capability and low-carbon operation capability of the power system based on the multi-dimensional operation comprehensive data; establishing an evaluation hierarchy according to an analytic hierarchy process, and determining the weights of the index values through the evaluation hierarchy; determining a robustness evaluation grade of the power system by using the index values and the corresponding weights based on a fuzzy comprehensive evaluation method, and performing demand response regulation on the power system according to the robustness evaluation grade; and scientific and comprehensive evaluation of the supply-demand robustness of the power system under the extreme heat wave scenario is realized.

The application provides a multi-microgrid electricity-carbon collaborative scheduling method and system, which comprises the following steps: establishing a distributed power generation and energy storage mathematical model according to a multi-microgrid system, and defining parameters according to the distributed power generation and energy storage mathematical model; constructing an endogenous thermal feedback model according to a thermal feedback coefficient and a load thermal sensitivity coefficient; designing an intraday rolling optimization strategy according to the endogenous thermal feedback model; and generating a comprehensive operation cost function and a power balance constraint according to the distributed power generation and energy storage mathematical model, the endogenous thermal feedback model and the intraday rolling optimization strategy, so as to perform multi-microgrid electricity-carbon collaborative scheduling. The endogenous thermal feedback model is constructed, the two-way interaction between the multi-microgrid system and the ambient temperature is quantified, the intraday rolling optimization strategy is integrated, the operation cost, the carbon emission and the power supply guarantee are optimized under complex constraints, the source-load fluctuation under the extreme heat wave environment is effectively responded, and the carbon emission reduction capacity and the operation economy of the multi-microgrid system are improved.

The invention relates to the technical field of temperature and humidity control, in particular to an intelligent temperature and humidity regulation and control method and system for aviation food cold chain transportation. According to the method, firstly, data cleaning is completed through space-time dimension verification of multi-node data, and high-confidence-coefficient feature parameters are generated; then synchronizing a flight profile and a destination weather forecast, and extracting a multi-dimensional environment factor containing thermal radiation intensity; on the basis, a heat exchange prediction model coupled with air pressure correction is constructed, and a full-voyage heat profit and loss curve is deduced; the electric quantity of the storage battery is further combined, and the pre-cooling triggering moment and the target deviation temperature are reversely optimized with food safety as a constraint; and finally, the frequency conversion compressor and the fan are cooperatively executed, and dynamic deviation correction is conducted in the falling stage according to the temperature change rate deviation. The technical problem that traditional aviation cold chain equipment is poor in resistance to extreme thermal shock on the ground is solved, accurate space-time transfer of cold energy from the high altitude to the ground is achieved, and the energy utilization efficiency is remarkably improved while food safety is guaranteed.