14 results about "Thermal mass" patented technology

The invention discloses an energy-saving effect evaluation and analysis method, system and device for a heat supply pipe network and a medium, and the method comprises the steps: calculating the measurement point coverage rate of each heating station and the distribution characteristics of the measurement point coverage rate in the heat supply pipe network according to the temperature measurement point distribution data, and determining an evaluation station based on the measurement point coverage rate and the distribution characteristics; according to whether the indoor temperature monitoring data is within a preset qualified temperature interval or not, the heat supply quality state of each heat user is determined; determining an evaluation time period meeting the evaluation requirement by adopting a grading judgment strategy, and judging a data reliability grade according to the duration of the evaluation time period; and the proportion of heat users with the indoor temperature value lower than the target temperature threshold value is counted, and when the proportion of the heat users exceeds a preset proportion, a load dispatching instruction is generated and executed. According to the method, the problems that in existing heat supply pipe network energy-saving evaluation, heat supply quality judgment does not conform to the actual heat use condition, evaluation period adaptability is poor, and energy-saving regulation and control are difficult to balance heat supply quality and energy saving due to the fact that temperature threshold setting is single are solved.

This application belongs to the field of heating station heat load prediction technology, and particularly relates to a method, system, equipment, and medium for dynamic compensation prediction of heating stations under extreme weather conditions. The method includes: acquiring current multi-source real-time meteorological data; analyzing the multi-source real-time meteorological data based on an early warning algorithm; determining whether an extreme weather warning has been triggered based on the analysis results; if the determination result indicates that an extreme weather warning has been triggered, calculating the building thermal inertia correction factor for the target heating area; obtaining historical compensation strategies based on a historical similar scenario matching mechanism; calculating a dynamic compensation coefficient by combining the weather warning level, the building thermal inertia correction factor, and the historical compensation strategy; and correcting the basic heat load prediction value based on the dynamic compensation coefficient to generate a final heating load prediction result; and sending the final heating load prediction result to the heating control system to adjust the heating output. This application improves heating quality.

The invention provides a wind power plant booster station building space design method based on solar energy utilization. The method comprises the steps that the orientation and shape of a building are optimized according to geographic coordinates and meteorological data; constructing a southbound facade integrated model; generating a thermally driven ventilation layout in conjunction with the thermal load; a thermal mass material is configured and integrated; and establishing a digital model, performing multi-target performance simulation and iterative optimization, and outputting a final scheme. The energy consumption of the booster station of the wind power plant can be reduced, the indoor thermal comfort is improved, and the dual goals of green energy conservation and efficient operation are achieved.

The application discloses a kind of power generation and heat supply secondary network end heat supply collaborative management method of thermal power generating unit, belong to heat supply power supply management field, method includes: according to the current heat supply of thermal power generating unit and the minimum heat supply required to meet secondary network buffer, the reducible heat supply of thermal power generating unit is calculated;Determine whether the total amount of current available thermal storage supports reducing the reducible heat supply under the constraint of allowing minimum room temperature, if yes, then execute under-supply operation to reduce heat output in heat source measurement, and record the cumulative under-supply heat during under-supply in real time;Determine whether current has heat supply over-supply condition, if yes, then execute over-supply operation to increase heat output in heat source measurement, utilize the cumulative over-supply heat during over-supply to compensate cumulative under-supply heat.This method not only improves the flexibility of thermal power generating unit, but also guarantees the quality of secondary network end heat supply.

The invention relates to the technical field of energy management, and discloses a cogeneration unit operation optimization scheduling method and system, and the method achieves the efficient matching of heat supply and power generation, improves the overall energy efficiency, employs a dynamic energy efficiency evaluation method, optimizes the load distribution of a unit, and guarantees the efficient operation through optimizing the heat-to-power ratio scheduling. Efficient matching of heat supply and power generation is achieved by optimizing heat-to-power ratio scheduling, and the overall energy efficiency is improved; a dynamic energy efficiency evaluation method is adopted, unit load distribution is optimized, and efficient operation is ensured; the heat supply temperature and pressure are optimized through self-adaptive PID control, fuzzy control and the like, and it is ensured that the heat supply quality is stable; in combination with factors such as weather prediction and building thermal inertia, the heat supply load prediction precision is improved, and the heat supply service quality is improved; through a carbon emission monitoring module, unit carbon emission is calculated and optimized in real time, and the carbon transaction cost is reduced; and in combination with carbon market dynamics, fuel consumption is optimized, pollutant emission is reduced, and environmental protection and compliance are realized.

A system for improving the performance of a heating, air conditioning, and ventilation (HVAC) system comprises rechargeable energy storage system (RESS) modules with high thermal mass, one or more auxiliary modules with low thermal mass, and a cooling system with a main refrigerant circuit and a refrigerant conditioning device. The HVAC system and individual parallel RESS refrigerant branches, connected in parallel to the auxiliary refrigerant branch(es), are connected to the main refrigerant circuit. An electronic controller determines the temperatures of the RESS module(s) and the auxiliary module(s) within their respective temperature ranges, conditions the refrigerant in the main circuit, and limits the refrigerant flow from it into the RESS refrigerant branch(es) when the temperature of the RESS module(s) is within a predefined temperature range.The control system also regulates the coolant flow from the main circuit to the auxiliary branch when the temperature of the auxiliary module is outside a second temperature range, in order to provide the target temperature coolant from the main coolant circuit to the HVAC system.

The application discloses a kind of micro-lens hot reflow devices with atmosphere and flow field synergic controllable, comprising: a multi-zone independent control heating platform;A closed atmosphere chamber surrounding the heating platform;A gas path system connected with the closed atmosphere chamber, for providing at least two controllable atmospheres into the cavity and accurately controlling its mixing ratio;An active airflow homogenization system arranged in the closed atmosphere chamber, located above the heating platform;A substrate located on the upper end surface of the heating platform;A temperature monitoring module for real-time monitoring of the two-dimensional temperature field distribution on the substrate surface;And an intelligent control system, the intelligent control system is respectively connected with the heating platform, gas path system, temperature monitoring module signal connection.It also discloses a kind of micro-lens hot reflow method with atmosphere and flow field synergic controllable.The application can effectively solve the problem of environmental interference, thermal mass transfer uneven and single regulation dimension.

This invention discloses a multi-node thin-film thermocouple temperature measurement structure for total temperature in flow channels, belonging to the field of temperature measurement technology. It includes a metal shell and a multi-node temperature-sensing thin-film thermocouple. The metal shell has an elongated airflow hole on its windward side and a fixing groove inside. The thin-film thermocouple includes a substrate, positive and negative sensitive films, dual hot nodes, and a cold junction. The hot nodes are formed by overlapping the positive and negative films and are arranged on the windward end face. The cold junction is separated and leads out as wires. This invention achieves total temperature measurement by combining the shell and the thin-film thermocouple to form a stabilization structure. The dual nodes improve spatial resolution. The thin film has a small thermal mass and a response down to the microsecond level, capable of capturing transient pulsations. The substrate and film have matched thermal expansion, resulting in strong high-temperature stability. The structure is compact, with minimal flow field interference and good vibration resistance and sealing. It is suitable for accurate testing of the total temperature of high-temperature, high-speed airflow in engine flow channels, solving the problems of incomplete, inaccurate, and slow measurement in traditional temperature measurement methods.

A system and method for simulating a vehicle cabin heated or cooled by a heat pump circuit uses a coolant reservoir that stores coolant having a thermal mass equivalent to a predetermined thermal mass of the vehicle cabin. A first coolant loop in thermal communication with the heat pump circuit simulates heating or cooling of the vehicle cabin, and includes the coolant reservoir. A second coolant loop simulates heat loss from or heat gain to the vehicle cabin, and includes the coolant reservoir and a chiller or a heater. Coolant is conveyed simultaneously through the first and second coolant loops, with the flow rate of the coolant through the second coolant loop being controlled such that a heat loss or gain rate of the coolant due to cooling or heating by the chiller or heater is equivalent to a predetermined heat loss or gain rate of the vehicle cabin.

This invention relates to the field of thermal power generation technology, and in particular to a heat and mass recovery system and method for a unit during FCB (Fuel Burner) operation. The system includes a control module 100, a communication module 200, and a distribution and regulation module 300 connected to the turbine unit. The control module 100 releases the working fluid during FCB operation and transmits it to the distribution and regulation module 300 for recovery via the communication module 200. The beneficial effects of this invention are that by recovering the heat and mass during FCB operation, the loss of the unit's working fluid is reduced, and the recovered steam is rationally recycled and utilized, improving the unit's economic efficiency and reducing the risk of short-term water loss.

The invention discloses a heat supply unit adjusting capacity improving method and device based on heat supply network characteristics, and relates to the technical field of combined heat and power generation. According to the main technical scheme, on the premise that the heat supply quality of a user and the heat stability of a system are guaranteed, peak load shifting of the heat supply amount of a thermoelectric unit is achieved by means of heat storage-heat release adjustment of heat supply network thermal inertia; the strong coupling relation between heat and electricity is weakened, so that the heat supply unit can flexibly respond to a power grid dispatching instruction and actively adjust the power output in the power load late peak period or the wind curtailment period such as night wind power generation, and therefore the peak regulation capacity and the operation flexibility of the heat supply unit are remarkably improved; according to the method, large-scale equipment transformation is not needed, high technical feasibility and economical efficiency are achieved, and an efficient and practical path is provided for improving the adjusting performance of the combined heat and power generation unit in a novel electric power system. The method is mainly applied to obtaining a solution for weakening thermal-electric coupling which is efficient and low in consumed technical cost, and the adjusting capacity of a heat supply unit is improved.

A vacuum insulated container has a double wall enclosure shaped to define an enclosed volume. The enclosed volume is open at at least one end. An annular space between inner and outer walls of the double wall enclosure is evacuated. A thermally sensitive device is disposed in the enclosed volume. A thermal mass is disposed in the enclosed volume and in thermal contact with the thermally sensitive device. An insulator is disposed in the enclosed volume and in contact with the thermal mass on a side of the thermal mass opposed to the thermally sensitive device. At least one thermoelectric cooling element is disposed in the enclosed volume having a cold side oriented toward the insulator and a hot side oriented away from the insulator and in thermal contact with a thermally conductive plug disposed in the at least one open end so as to close the enclosed volume.

The invention discloses a heat exchange station energy-saving power supply system based on thermoelectric power generation and a working method thereof, and belongs to the technical field of thermoelectric power generation. The system comprises a heat exchange station system and a thermoelectric power generation system coupled with the heat exchange station system. The heat exchange station system comprises a primary network water loop and a secondary network water loop which are composed of a thermal power plant, a heat exchanger and a heat user. The thermoelectric power generation system comprises a hot water diverter valve, a cold water diverter valve and a thermoelectric generator. The thermoelectric generator is composed of a hot water heat exchanger, a cold water heat exchanger and a thermoelectric power generation device clamped between the heat exchanger and the cold water heat exchanger. Part of primary network high-temperature water and secondary network low-temperature return water are introduced into the hot water heat exchanger and the cold water heat exchanger through the diverter valve, the temperature difference power generation device is driven to continuously generate power through the stable temperature difference between the two heat exchangers, and generated electric energy is supplied to the heat exchange station for use. On the premise that a main heat supply loop is not interfered and heat supply quality and safety are guaranteed, inherent waste heat temperature difference of the system is efficiently recycled, and dependence and operation power consumption of the heat exchange station on an external power grid are reduced.