499 results about "Thermal balance" patented technology

A method for controlling thermal flows in at least one building, according to which a mechanism for influencing the temperature within the building is controlled based on a plurality of input parameters. Controlling can be done in the most economical manner by triggering the mechanism that regulates the temperature of a specific monitored space or the at least one area of a specific space by using a) at least one target value, especially the desired temperature of the specific space, b) at least one general parameter characteristic of at least one variable inside and / or outside the building, which at least indirectly influences the temperature within the specific space, and c) at least one special parameter characteristic of the specific thermal flow conditions of the specific monitored space or the area of the specific space, as input parameters, and calculating the controlling of the mechanism from the input parameters in a control unit.

The invention belongs to the technical field of building cooling load control, relates to a method for predicting an office building cooling load, and through building an office building outdoor cooling load model, an office building indoor cooling load model and an office building fresh air load hourly variation model, an office building cooling load model is obtained. Based on the an energy conservation law and a thermal balance relation in building environment, from the point of view of variation of the number of people in an office building and personnel energy utilization modes, the interference amount of a cooling load in the office building is predicted and analyzed; and meteorological website data are utilized to predict a cooling load outside the office building and an office building fresh air load. The method for predicting the office building cooling load establishes an air conditioner enclosing structure, a solar radiation cooling load hourly variation model, and hourly variation models of personnel, equipment, illumination cooling loads and personnel indoor rate in air conditioning environment, and finally obtains a cooling load prediction model of the office building.

The invention provides a method for accurately calibrating temperature error coefficients of a laser gyro inertia measurement unit. In the method, a three-axle table with a thermostate is utilized to enable an LIMU to achieve whole thermal balance through a measure of performing long-term heat preservation at a certain temperature spot; system inherent error coefficients such as a gyro scale factor, a gyro literal drift, an accelerometer scale factor, an accelerometer literal bias and the like at the temperature spot are accurately calibrated through a calibration method of combining dynamic rotation and static 24 position; and then high and low temperature cycling tests are performed on the LIMU by utilizing the inherent error coefficients of the LIMU at the temperature spot, so that the temperature error coefficients comprising 30 temperature related coefficients such as a primary temperature coefficient, a secondary temperature coefficient, a temperature gradient coefficient and a temperature change rate coefficient of the gyro literal drift and accelerometer literal bias are further calibrated. The method provided by the invention has the characteristics of high accuracy and simplicity in operation, and can be used for greatly improving the use accuracy of the LIMU under a variable temperature environment.

A multiphase power supply device and a current adjusting method thereof are provided in the application. The multiphase power supply device outputs power sources and currents with different phases to a microprocessor, and a detection module detects present temperature values of each phase power source to adjust currents of each phase power source to achieve thermal balance. The multiphase power supply device further can automatically measure the power efficiency and display results including the detected temperature values of each phase power source and the power efficiency on a screen, and thus the user can know the operation efficiency of the power supply device conveniently.

The invention discloses extra-huge-volume concrete once continuous pouring multi-cycle real-time temperature control construction technology. Flow and flow rate of circulating water is automatically regulated by a concrete internal and external temperature real-time monitoring system. Hydration heat inside concrete is gradually reduced to balance the inside and outside temperature difference of the concrete, effectively prevent temperature difference stress inside and outside the concrete from generating a crack, and ensure that construction quality of "extra-huge-volume concrete" meets design and specification requirements. The extra-huge-volume concrete one-time continuous pouring multi-cycle real-time temperature control construction technology has the advantages of saving a lot of water resources, achieving green construction, and conforming to national energy saving and environmental protection policy orientation due to the fact that three communicated circulating water systems including water in a circulating pipe network, water in an entire storage thermal insulation maintenance pool of a base plate and recharge water come from a foundation pit rainfall and site rainwater collection system.

The invention discloses a method for acquiring the thermal performance of an oxygen-enriched combustion boiler. The method comprises the steps of combustion calculation of fuel, simulation of flue gas and air supply, thermal balance calculation, hearth thermal calculation and convection heating surface thermal calculation, wherein the hearth thermal calculation consists of a flame blackness calculation step and a hearth blackness calculation step, the convection heating surface thermal calculation consists of a flue gas blackness calculation step and a flue gas side radiation heating coefficient determination step. A triatomic gas radiation attenuation coefficient ky is calculated according to a formula specified in the specifications, wherein PH2O is the H2O partial pressure in flue gas, S is the effective thickness of a radiating layer, and epsilon is a triatomic gas emission rate. By adopting the method for acquiring the thermal performance of the oxygen-enriched combustion boiler, the thermal performance of the oxygen-enriched combustion boiler is acquired more accurately, and the accuracy can meet the requirements on design as well as check of the thermal performance of the oxygen-enriched combustion boiler.

The invention discloses a testing device for thermal resistance of bedding and clothing. The testing device comprises a constant-temperature room, a dummy model system and a test bed; the dummy model system comprises a dummy model, resistance wires and a copper sheet are arranged on the outer surface of the dummy model, the resistance wires are connected with a heating controller by conducting wires, thermocouples are distributed on the copper sheet and are connected with a multi-channel temperature tester by conducting wires, and the bedding and clothing are placed on the outer surface of the copper sheet; and the constant-temperature room comprises a simple room, an outdoor air conditioning unit, a temperature controller, air supply outlets made of orifice plates, return air inlets made of louvers and an air temperature sensor. The testing device has the advantages that owing to the air supply outlets made of the orifice plates and the return air inlets made of the louvers, upper-supplying and lower-returning airflow is formed, and accordingly a uniform temperature field and a uniform speed field can be formed in the constant-temperature room by the aid of the outdoor air conditioning unit and the control action of the temperature controller; and a value of the thermal resistance of the bedding and clothing can be computed by the aid of a thermal balance principle according to the difference between the temperature of the surface of the dummy model and the temperature of air in the constant-temperature room and heating load required for keeping the temperature of the surface of the dummy model constant.

The present invention relates to a thermal balance data collection battery box having replaceable elementary cells, and belongs to the technical field of battery management. According to the present invention, four air pressure columns formed by mutual adhesion are arranged in the bushing of a battery unit, optical fibers are inserted in the center position of the air pressure columns in a penetrating manner, the gap position on the bottom end of the bushing is provided with a Dembet effect semiconductor wafer, the light spot of the light of led lamp bead is irradiated to the axial position of the semiconductor wafer through light guide fibers, the temperature difference between the battery packs is converted into the position offset of the light spot on the Dembet effect semiconductor wafer by using the air thermal expansion and cold contraction principle, the monomer battery pack and the electrical components thereof are fixed by using the upper end cover having threads and the lower end cover having threads, the monomer battery in the battery pack can be arbitrarily replaced, and the working temperature can be automatically adjusted through the thermal expansion contraction opening and closing window of the battery pack bushing; and with the thermal balance data collection battery box, the temperature in the battery unit and the fine temperature difference between the battery unit can be accurately determined and can be transmitted to the power supply management hardware system so as to provide reliable data for the thermal management and the optimization of the battery.

The invention relates to a system for preparing solid, liquid and gas products from coal and biomass and a method for preparing solid, liquid and gas products by using the system. The operation of the system is dependent on the integrated circulation of the heat generated in the system between a pyrolyzing furnace and a gasification furnace and the thermal balance when no any external heat is supplied to the system so that the thermal efficiency of the system is improved greatly; and a thermal radiation synthetic gas cooler (RSC) with high cost is saved from the system, wherein a chilling unit and a chilling medium in the region adjacent to a synthetic gas flow outlet and ejected in the gasification furnace chill the synthetic gas flow so that the synthetic gas from the chilling unit or the gasification furnace is filled in the pyrolyzing furnace, thereby ensuring that the operation temperature of the pyrolyzing furnace is controlled in the desired range of the pyrolytic reaction without needing an external thermal source for the pyrolytic reaction.