11 results about "Heat measurement" patented technology

1. Name of the product in this design: Mechanical Heat Meter (ZYT-RLM). 2. Purpose of this design: for heat measurement. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the technical field of cement hydration heat measurement, and particularly discloses a cement hydration heat measurement device which comprises a measurement tank, and a feeding pipeline and a discharging pipeline are respectively arranged at the top and the bottom of the measurement tank; the thermometer is arranged on the wall surface of the measuring tank and is used for detecting the temperature in the measuring tank; the stirring mechanism is used for stirring the mixture in the measuring tank; comprising a power part arranged outside the measuring tank, a stirring shaft which is rotatably connected in the measuring tank and is driven by the power part, a plurality of first stirring blades which are vertically arranged on the stirring shaft in a staggered manner, and a plurality of second stirring blades which are arranged at the end parts of the first stirring blades and scrape along the inner wall of the measuring tank. Part of cement is easy to adhere to the inner wall of the measuring tank, so that the mixing is not uniform.

This invention relates to the field of aircraft fire resistance testing technology, and discloses a device, system, and method for acquiring the surface heat flux density of a fire-resistant test specimen. The system initialization includes: total heat flux measurement (obtaining the theoretical total heat flux value q0); actual pure radiative heat measurement (setting a glass cover around the heat flux sensor without changing its position, shielding convective heat through the glass cover, and then collecting the theoretical radiative heat flux value q1 measured by the heat flux sensor); and multiplying the pre-measured emissivity of the test specimen surface by the theoretical radiative heat flux value q1 to obtain the actual pure radiative heat flux value q. r Actual heat flux calculation: Actual convective heat value q c The actual heat flux q is obtained by subtracting the theoretical radiative heat flux q1 from the theoretical heat flux q0. a Equal to the actual pure radiative heat flux value q r and actual convective heat value q c The sum of radiative heat and convective heat is achieved through precise measurement of these two heat sources under actual aircraft fire conditions, providing high-fidelity, multi-scenario, and highly consistent thermal flow data for twin experiments.

This invention provides a means to perform differential scanning calorimetry analysis more cost-effectively, simply, and quickly. [Solution] A system for simultaneous thermal analysis of multiple single samples, particularly biological materials, by differential scanning calorimetry (DSC) comprises a sample carrier having multiple sample containers, each sample container assigned a single sensor for measuring the amount of heat released or absorbed from a single sample during thermal analysis; a heating and / or cooling unit having a receptacle for the sample carrier and for simultaneously applying temperature load to the single samples contained in the sample containers; and a measuring instrument connected to a single sensor and configured to simultaneously acquire measured values ​​of the amount of heat released or absorbed by a single sample during thermal analysis. Furthermore, a sample carrier for use in this system and a method for simultaneously analyzing a single sample or a group of single samples by differential scanning calorimetry (DSC) are provided.

The invention discloses a heat-proof material high-wall temperature heat flow measurement test device and method. The invention relates to a heat-proof material high-wall-temperature heat flow measurement test device, which comprises a test piece bearing unit, a high-frequency induction heating unit, a test section cabin body, a first heat measurement unit and a second heat measurement unit, the heat-proof material high-wall-temperature heat flow measurement test method comprises the following steps that S1, a high-frequency induction heating unit discharges, electromagnetic coupling heating is conducted on a gas medium, ionization is conducted to form plasmas, and the plasmas form stable plasma flow to be emitted to a test piece bearing unit; s2, continuing the step S1 until the surfaces of the two sides of the test piece reach radiant heat balance; and S3, the conduction heat flow qc of the side, located on the inner surface of the shell, of the test piece and the conduction heat flow qr of the side, located on the outer surface of the shell, of the test piece are measured, the total heat flow qt when the surfaces of the two sides of the test piece reach heat radiation balance is calculated, and qt = qc + qr. The heat-proof material high-wall temperature heat flow measurement test device and method have the advantages of being high in measurement accuracy and high in data collaboration.

The application relates to an arc wind tunnel test coaxial calorimeter heat measurement correction method and system, and belongs to the field of aerodynamic heat test research. n The application can realize accurate measurement of the ground test heat flow of the arc wind tunnel; the arc wind tunnel test coaxial calorimeter heat measurement correction method can be suitable for heat measurement of arc wind tunnel flat plate model test and stagnation point model test, and the heat flow test is suitable for very wide, covering 10kW / m 2 -30000kW / m 2 , and has a wide application range.

This invention relates to an online system for determining flue gas thermal energy and a method for assessing its recovery value, belonging to the field of flue gas heat measurement and heat recovery technology. It solves the problem that existing methods cannot achieve online, real-time, and direct measurement of flue gas thermal energy. The system includes a flue gas parameter measurement unit, a signal acquisition and processing unit, and a thermal energy calculation and display unit. The flue gas parameter measurement unit includes a flue gas acquisition chamber, a flue gas temperature sensor, an ambient temperature sensor, and a flow measurement device. The signal acquisition and processing unit calculates the flue gas heat flow and waste heat quality using the received ambient temperature, flue gas temperature, and flue gas flow rate. The thermal energy calculation and display unit calculates and displays the real-time thermal energy using the received heat flow and waste heat quality. This invention also provides a method for assessing the recovery value based on real-time flue gas thermal energy, determining the waste heat recovery value by comparing the real-time thermal energy value with the critical thermal energy value. This invention is applicable to the assessment of the thermal energy value and recovery value of materials after combustion.

1. The name of the design product: Micro calorimeter (DMC-196). 2. The use of the design product: For heat measurement in low temperature environment, can analyze the thermal effect of sample under lower than room temperature condition. 3. The design points of the design product: In shape. 4. The picture or photo that can best show the design points: perspective view 1.

The present application belongs to the field of hot water tank heat measurement, discloses a kind of effective capacity determination method of hot water tank added in cogeneration unit, and the effective capacity of hot water tank can be accurately determined according to real working condition by step-by-step quantitative calculation of key parameters such as heat load, peak shaving duration, heat storage efficiency and supply and return water temperature difference.First, by quantifying the average heat load of the heating period and the typical peak shaving or peak duration, the heat storage demand can be closely matched with the actual operating load, avoiding the use of traditional estimation method with large safety factor, reducing the capacity configuration from the source. The present application introduces the heat loss parameter of the hot water tank, and includes the inevitable heat loss in the energy storage process into the calculation, so that the final effective daily heat storage is closer to the real available value, thereby avoiding the insufficient effective capacity caused by ignoring the loss and improving the sustainable heating capacity of the unit during peak shaving and peak period.

The application provides a heat measurement switch loss circuit and method suitable for a bottom heat dissipation GaN device, in which the drain of a to-be-measured GaN device T1 and the drain of an auxiliary GaN device T3 are connected to the positive electrode of a voltage source V DC , the source of T1 is connected to the drain of an auxiliary GaN device T2, the source of T3 is connected to the drain of an auxiliary GaN device T4, the sources of T2 and T4 are both connected to the negative electrode of the voltage source V DC , a first node N1 is included between the source of T1 and the drain of T2, a second node N2 is included between the source of T3 and the drain of T4, the two ends of an inductor L are respectively connected to N1 and N2, and a capacitor C DC is connected in parallel to the voltage source V DC . For the bottom heat dissipation to-be-measured GaN device T1, the application selects the top heat dissipation auxiliary GaN devices T2, T3 and T4 when testing by using the heat measurement switch loss circuit, so that most of the loss heat of T1 is on the PCB, and the heat loss measurement precision of the to-be-measured GaN device T1 is improved.

Each of heat quantity measurement apparatuses 20a to 20c includes a snow receiving plate 22 configured that falling snow piles up thereon, a heater device 25 configured to heat the snow receiving plate until a temperature of the snow receiving plate 22 becomes predetermined target temperature exceeding 0 degrees Celsius, and a heat flux density measurement apparatus (24a to 24d) configured to measure heat flux density transmitted from below to the snow receiving plate 22. A piling snow depth measurement apparatus 14 measures a piling snow depth of snow piling up at a first location 13. A control apparatus 15 computes a quantity of heat spent to melt the snow falling on the snow receiving plate 22, and estimates a piling snow depth at second locations 12a to 12d, based on the computed quantity of heat and the piling snow depth measured by the piling snow depth measurement apparatus 14.