Wyniki wyszukiwania - BazTech

1

Monitoring regenerative heat exchanger in steam power plant by making use of the recurrent neural network

Niksa-Rynkiewicz Tacjana, Szewczuk-Krypa Natalia, Witkowska Anna, Cpałka Krzysztof, Zalasiński Marcin, Cader Andrzej

Journal of Artificial Intelligence and Soft Computing Research

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2021

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Vol. 11, No. 2

143--155

EN

Artificial Intelligence algorithms are being increasingly used in industrial applications. Their important function is to support operation of diagnostic systems. This paper presents a new approach to the monitoring of a regenerative heat exchanger in a steam power plant, which is based on a specific use of the Recurrent Neural Network (RNN). The proposed approach was tested using real data. This approach can be easily adapted to similar monitoring applications of other industrial dynamic objects.

2

Problems of carnotisation of steam turbine circuits

Krzyślak Piotr

Scientific Journal of Gdynia Maritime University

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2020

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nr 116

29--58

EN

The paper presents new concepts related to improvement of the efficiency of thermal circuits of steam turbines. Starting from a traditional C-R system, the efficiency losses of the circuit depending on the number of heat recovery exchangers in the system were indicated. Three different types of heat recovery regeneration exchangers that can be used in thermal circuits and their impact on the efficiency of the steam turbine system are presented. Further in the paper, the concept of the internal superheating and the possibilities of increasing efficiency in its use are presented.

3

The influence of particular parameters on the temperature distribution in the impletion of regenerative heat exchanger

Chylińska D.

Structure and Environment

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2015

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Vol. 7, no. 1

29--33

EN

The article describes the process of unsteady heat transfer that occurs between the impletion of regenerative heat exchanger and the surrounding air. A mathematical model of this phenomenon and its exemplary solution using the method of elementary balances were presented. Numerical calculations using Mathcad were applied. As a result, the set temperature field is formed in the heat exchanger wall. The influence of the geometrical dimensions (length of the filling) and air velocity on the temperature distribution in the fill were analysed.

4

Analiza rozkładu temperatury w wypełnieniu regeneracyjnego wymiennika ciepła

Chylińska D.

Ciepłownictwo, Ogrzewnictwo, Wentylacja

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2014

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T. 45, nr 9

331--334

PL

W artykule opisano procesy niestacjonarnej wymiany ciepła występujące pomiędzy wypełnieniem regeneracyjnego wymiennika ciepła a otaczającym je powietrzem. Zaprezentowano model matematyczny tego zjawiska i przykładowe rozwiązanie z wykorzystaniem metody bilansów elementarnych. Wykonano obliczenia numeryczne z zastosowaniem programu Mathcad. W efekcie otrzymano rozkład temperatury w elemencie wypełnienia regeneracyjnego wymiennika ciepła.

EN

The article describes the process of unsteady heat transfer that occurs between the impletion of regenerative heat exchanger and the surrounding air. A mathematical model of this phenomenon and its examplary solution using the method of elementary balances were presented. Numerical calculations using Mathcad were applied. As a result, the set temperature field is formed in the heat exchanger wall.

5

Analysis of transient heat transfer operation in tube wall

Kołakowski L., Krzyślak P.

Transactions of the Institute of Fluid-Flow Machinery

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2003

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nr 113

225--234

EN

Paper presents the problem connected with non-steady state operation of a regenerative heat exchanger. A simple mathematical model is proposed for estimation response time for non-steady temperature distribution in tube wall. The solution presented in paper was obtained from the analytical calculations.