Tomasz Sobota

Cracow University of Technology

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Jan Taler

Cracow University of Technology

Dawid Taler

Cracow University of Technology

Magdalena Jaremkiewicz

Cracow University of Technology

Bohdan Węglowski

Cracow University of Technology

P. Rajesh Kanna

Vellore Institute of Technology University

Dawid Taler

Cracow University of Technology

Piotr Dzierwa

Cracow University of Technology

Marcin Trojan

Cracow University of Technology

Sławomir Grądziel

Cracow University of Technology

C. Ramesh Kumar

Vellore Institute of Technology University

Cooperative Institutions

Cracow University of Technology

Vellore Institute of Technology University

AGH University of Krakow

Lukasiewicz Research Network - Krakow Institute of Technology

University of Windsor

Anna University, Chennai

Velammal Medical College Hospital and Research Institute

University of Waterloo

Royal Military College of Canada

Sri Chandrasekharendra Saraswathi Viswa Mahavidyalaya

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Thermal Performance and Stress Monitoring of Power Boiler

ASME 2005 Power Conference (2016)

Jan Taler Bohdan Węglowski Tomasz Sobota Dawid Taler Marcin Trojan

The paper presents a method for determination of thermo-flow parameters for steam boilers. This method allows to perform the calculations of the boiler furnace chamber and heat flow rates absorbed by superheater stages. These parameters are important for monitoring the performance of the power unit. Knowledge of these parameters allows determining the degree of the furnace chamber slagging. The calculation can be performed in online mode and use to monitoring of steam boiler. The presented method allows to the operation of steam boiler with high efficiency.

Superheater

Feedwater heater

10.1115/power2016-59082

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Monitorowanie lokalnego zażużlowania ekranów kotła od strony spalin oraz lokalnego oporu cieplnego osadów na wewnętrznych powierzchniach rur ekranowych

Jan Taler Dawid Taler Tomasz Sobota

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Steam pipeline optimum heating

Zeszyty Naukowe. Elektryka / Politechnika Opolska (2010)

Jan Taler Szczepan Lubecki Tomasz Sobota

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Measurement of transient fluid temperature

International Journal of Thermal Sciences (2014)

Magdalena Jaremkiewicz Dawid Taler Tomasz Sobota

Transient (computer programming)

10.1016/j.ijthermalsci.2014.09.002

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The flexible boiler operation in a wide range of load changes with considering the strength and environmental restrictions

Energy (2022)

Jan Taler Marcin Trojan Piotr Dzierwa Karol Kaczmarski Bohdan Węglowski

Boiler blowdown

10.1016/j.energy.2022.125745

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Transient heat transfer at fluid flow in a thick-walled pipeline

MATEC Web of Conferences (2018)

Tomasz Sobota Dawid Taler Szczepan Lubecki

The work aims to determine the transient temperature distribution of the medium and the pipeline wall using the finite difference method. Time courses of the temperature of the flowing medium and pipeline walls caused by a step change in temperature of the medium at the pipeline inlet, obtained by the numerical method, were compared with the courses calculated using strict analytical formulas. The numerical method of determining the transient distribution of temperature of medium and pipeline wall can be used in the analysis of heating and cooling of heating or steam pipelines with any changes in time of mass flow rate of the flowing medium or temperature of the medium at the inlet to the pipeline.

Transient (computer programming)

Transient flow

Mass flow rate

10.1051/matecconf/201824005032

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Recent Developments in Supercritical CO2-Based Sustainable Power Generation Technologies

Energies (2024)

Saravana Kumar Tamilarasan Jobel Jose Vignesh Boopalan Fei Chen Senthil Kumar Arumugam

Global warming and environmental pollution from greenhouse gas emissions are hitting an all-time high consistently year after year. In 2022, energy-related emissions accounted for 87% of the overall global emissions. The fossil fuel-based conventional power systems also need timely upgrades to improve their cycle efficiency and reduce their impact on the environment. Supercritical CO2 systems and cycles are gaining attention because of their higher efficiencies and their compatibility with varied energy sources. The present work is a detailed overview of the recent developments in supercritical CO2-based power generation technologies. The supercritical CO2-based Brayton and Rankine power cycles and their improvisations in industrial applications are also discussed in detail. The advances in heat exchanger technology for supercritical CO2 systems are another focus of the study. The energy, exergy, and economical (3E) analysis is carried out on various supercritical CO2 power cycles reported in the literature and the data are concisely and intuitively presented. The review concludes by listing the identified directions for future technology development and areas of immediate research interest. A roadmap is proposed for easing the commercialization of supercritical CO2 technologies to immediately address the growing challenges and concerns arising from energy-related emissions.

10.3390/en17164019

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Nagrzewanie i ochładzanie rurociągów [Heating and cooling of steam pipeline]

Tomasz Sobota Dawid Taler Szczepan Lubecki

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Pojęcie skarbowości w myśli Adama Krzyżanowskiego

Studia i Prace Kolegium Zarządzania i Finansów (2020)

Tomasz Sobota

Celem artykułu jest omówienie pojęcia skarbowości w myśli Adama Krzyżanowskiego. W opracowaniu zaprezentowano jego poglądy odnośnie do takich zagadnień, jak: relacje między skarbowością a eko¬nomią, pojęcie skarbowości, przedmiot oraz zakres nauki skarbowości, a także zagadnienia gospodar¬stwa prywatnego i gospodarstwa państwowego. Zapatrywania A. Krzyżanowskiego na te zagadnienia zostały porównane z poglądami innych polskich ekonomistów, w celu uzyskania szerszej perspektywy. Przedstawione powyżej kwestie stanowią wstęp do zrozumienia poglądów autora w zakresie finansów publicznych oraz ekonomii.Problematyka teorii finansów publicznych ma kluczowy wpływ na praktyczną umiejętność posługi-wania się finansami publicznymi. W związku z tym oraz ze względów naukowych i pedagogicznych badania systemów skarbowych powinny zajmować istotne miejsce w myśli ekonomicznej

10.33119/sip.2019.176.4

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Influence of the Thermometer Inertia on the Quality of Temperature Control in a Hot Liquid Tank Heated with Electric Energy

Energies (2020)

Dawid Taler Tomasz Sobota Magdalena Jaremkiewicz Jan Taler

This paper presents the medium temperature monitoring system based on digital proportional–integral–derivative (PID) control. For industrial thermometers with a complex structure used for measuring the temperature of the fluid under high pressure, the accuracy of the first-order model is inadequate. A second-order differential equation was applied to describe a dynamic response of a temperature sensor placed in a heavy thermowell (industrial thermometer). The quality of the water temperature control system in the tank was assessed when measuring the water temperature with a jacketed thermocouple and a thermometer in an industrial casing. A thermometer of a new design with a small time constant was also used to measure temperature. The quality of water temperature control in the hot water storage tank was evaluated using a classic industrial thermometer and a new design thermometer. In both cases, there was a K-type sheathed thermocouple inside the thermowell. Reductions in the time constant of the new thermometer are achieved by means of a steel casing with a small diameter hole inside which the thermocouple is precisely fitted. The time constants of the thermometers were determined experimentally with a jump in water temperature. A digital controller was designed to maintain the preset temperature in an electrically heated hot water tank. The function of the regulator was to adjust the power of the electrical heater to maintain a constant temperature of the liquid in the tank.

Thermometer

Thermocouple

Time constant

10.3390/en13154039

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Citations (12)