Mathematical Modeling of a Thermal Converter with a Cylindrical Heat Pipeline and a Lumped Heat Source

Matyakubova, P. M.; Ismatullaev, P. R.; Avezova, N. I.; Mahmudjonov, M. M.

doi:10.1007/s10891-023-02674-4

Cited by 2 publications

(2 citation statements)

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“…In case of conditional decisions, it is recommended to carry out the measurements again, if these results are repeated more than 3 times in conditional conditions, it is necessary to carry out measurements from another laboratory or to set the protective lines for carrying out measurements. [8][9][10][11][12] There are a number of ways to establish a line of defense for decision-making based on international recommendation ILAC-G8:09/2019, which are listed in Table 1 [1,19]. The customer can determine the amount of protection line himself…”

Section: Methodsmentioning

confidence: 99%

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Scientific basis and practical application of formalization by making decisions taking into account the uncertainty of the results of gas analyzers in the process of comparison

Mahmudjonov,

Masharipov,

Matyakubova

2024

ITM Web Conf.

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Abstract. In the work done, the current state of comparison of gas analyzers was studied, and the issue of formalizing the results by making decisions based on the international recommendations of ILAC-G8:09/2019 was studied. The problems arising in the processing of the results of the comparison of gas analyzers are studied, and recommendations are given to consider the risks affecting them. Differences, shortcomings, and advances between benchmarking and calibration are discussed. No need for repeated comparison of calibrated dies, recognition of calibration result during comparison was studied. The difference between measurement uncertainty and error was studied. Making decisions on the basis of international recommendations ILAC-G8:09/2019 in the application of measurement results in the process of comparison of measurement uncertainty. Recommendations are made for establishing a line of defense in decision-making. At the National Institute of Metrology of Uzbekistan, the experimental results were processed and decisions were made based on the international recommendations of ILAC-G8:09/2019. The importance of selection of calibration points in comparison was studied and recommendations were made.

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Section: Methodsmentioning

confidence: 99%

“…For each ΔT °C due to the change in ambient temperature under operating conditions, the absolute additional error of the measuring device ∆St, the value of the lower concentration limit of the spread is calculated according to the following formula [7][8] 0 0 ( ) ,…”

Section: Introductionmentioning

confidence: 99%