Predictive Modelling of the Warming up Times for Thermoelectric Converters

Abstract

In the present article the question of simulation of nonstationary process of heat transport in a sensitive element of the thermoelectric transformer with an uninsulated seal is considered. The model allows defining and comparing the heating time of a thermocouple junction up to the given temperature for different types of thermocouples. In this article the values obtained by means of modelling the heat time of different thermocouples and also a temperature field in a sensitive element of the thermoelectric transformer are given.

Process Simulating of Heat Transfer in High-temperature Thermocouples

“…Herewith simulations of thermoelectric converters temperatures from the standpoint of capabilities error estimates and others metrological characteristics paid very few attentions. Such questions considered in [2][3][4][5][6], however at productions problem in works [2,3] lose sight of features detail of construction thermoelectric converters (considered only direction, corresponding junction of thermocouples).…”

Research of Integral Characteristics of Process of Heattransfer in the Sensitive Element of Resistive Temperature Detector

“…One of the main methods of increase of measuring accuracy is prognostic process modeling of heattransfer in a sensitive element of the sensor. Simulation by means of numerical methods was widely adopted [5]. In this case, an important role is played by the heatphysical characteristics of materials used in researches.…”

Influence of Conditions of Heating up on Integral Characteristics of Heattransfer in the Sensitive Element of the Thermoconjugate Sensor

“…Often in practice it is necessary to use thermoelectric transformers of industrial execution which construction is intended for protection of thermoelectrodes and a thermocouple junction against negative impact of a work environment [3]. However complication of construction of the transformer leads to increase in a thermal inertance of the sensor and has impact on integral characteristics of process of heattransfer in a sensitive element of the sensor in case of its heating up [4].…”

“…Thermoconjugate sensors are used to temperature measurement in many industries, including in mechanical engineering, power engineering, the food industry and others [1][2][3]. Often in practice it is necessary to use thermoelectric transformers of industrial execution which construction is intended for protection of thermoelectrodes and a thermocouple junction against negative impact of a work environment [3].…”