Calorimetric calculation method

A calculation method and calorimetric technology, which is applied in the field of calorimetric algorithms, can solve the problems of shortening calorimetric measurement time, long time consumption, and limited adaptability, and achieve the effects of shortening calorimetric measurement time, broadening application space, and improving time efficiency

Pending Publication Date: 2021-04-20
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

In terms of current technology, it takes a long time to establish heat balance, and the time efficiency of calorimetric measurement is low
[0003] Appropriate physical improvement can shorten the calorimetric measurement time to a certain extent. Typical examples include fine structure design, introduction of preheating system, and adoption of servo measurement mode. The essence of balance building, the effect is also limited

Method used

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  • Calorimetric calculation method
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Embodiment

[0093] Such as figure 1 , figure 2 As shown, taking a thermopile calorimeter as an example, the temperature-related signal is thermoelectric potential. The acquisition of the final balance value is completed by the following stages in sequence.

[0094] (1) Basic data collection

[0095] Basic data acquisition setup: offset time t E = 10min, the minimum effective basic data set t S =20min, data collection period T=1min.

[0096] Use the data system of the calorimetric entity itself to acquire and accumulate the system potential-time relationship data set, and the basic data collection time t E +t S = 30min.

[0097] (2) System eigenvalue analysis

[0098] After the collection of the minimum basic data set is completed, the next data point (that is, after the system runs for 30 minutes) starts to analyze the real-time characteristic time constant. All data points in the valid data set at this moment are used as data sources, and the three-exponential In order to calc...

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Abstract

The invention relates to a calorimetric calculation method, in particular to a calorimetric algorithm capable of performing equilibrium final value calculation in a dynamic transition interval. The method comprises four execution stages, namely (1) a basic data collection stage, (2) a system characteristic value analysis stage, (3) a curve shape discrimination stage and (4) a balance final value calculation stage. The real-time iterative numerical calculation algorithm is introduced into the collected data for processing, the data rule of the dynamic interval of the measurement process is concluded, and the system operation trend is deduced, so that the measurement result can be obtained in the dynamic region time period before the steady state is reached, the measurement does not need to depend on the establishment of the overall thermal balance stable state of the system, the calorimetric measurement time can be remarkably shortened, and the time efficiency of calorimetric measurement is greatly improved.

Description

technical field [0001] The invention belongs to calorimetric technology, in particular to a calorimetric algorithm capable of calculating the balance final value in a dynamic transition interval. Background technique [0002] Existing calorimetric techniques generally rely on temperature-related quantities for thermal power characterization, and then calculate the nuclide mass through the nuclide characteristic power value. The characterization of thermal power depends on the establishment of a thermal equilibrium state. Only when the sample to be measured forms a stable temperature gradient in the calorimetric element can the thermal power correlation signal value be effectively output. As far as the current technology is concerned, it takes a long time to establish a heat balance, and the time efficiency of calorimetric measurement is low. [0003] Appropriate physical improvement can shorten the calorimetric measurement time to a certain extent. Typical examples include ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/08
Inventor 刘丽飞武超胡石林任英吕卫星
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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