Wyniki wyszukiwania dla: WATER CYCLECHEMICAL EXERGY

• Exergy analysis of a negative CO2 emission gas power plant based on water oxy-combustion of syngas from sewage sludge gasification and CCS

  Publikacja

  • I. S. Ertesvåg
  • P. Madejski
  • P. Ziółkowski
  • D. Mikielewicz

  - ENERGY - Rok 2023

  A power cycle with water-injected oxy-combustion (water cycle) is investigated by exergy analysis. It is fueled with syngas (aka. producer gas) from gasification of sewage sludge. The cycle is equipped with a spray-ejector condenser (SEC). CO2 is separated and compressed for transportation and storage. The net delivered electric power is 31% of the fuel exergy. The task efficiency is 39% when the flue gas bleed to gasification...

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• Water

  Czasopisma

  ISSN: 2073-4441

• Magdalena Gajewska prof. dr hab. inż.

  Osoby

  Katedra Technologii w Inżynierii Środowiska

  Magdalena Gajewska (ur. 1.06.1968 r. w Gdańsku) ukończyła studia w 1993 roku na Wydziale Hydrotechniki Politechniki Gdańskiej.  Jest adiunktem w Katedrze Technologii Wody i Ścieków na Wydziale Inżynierii Lądowej i Środowiska Politechniki Gdańskiej. Doktorat (2001) i habilitacja (2013) w dyscyplinie inżynierii środowiska.  W kadencji 2016–2020 pełni funkcję prodziekana ds. nauki. Specjalizuję się w technologiach związanych z ekoinżynierią:...

• Looking for a minimum exergy destruction in hierarchical cycle

  Publikacja

  • T. Kowalczyk
  • P. Ziółkowski
  • J. Badur

  - Rok 2015

  The paper presents results of energy analysis, complemented with an exergy balance, of hierarchical thermodynamic cycle. Proposed cycle is a binary vapour cycle based on a model of real supercritical steam power plant. Energy analysis is used to preliminary optimization of the cycle and the exergy losses analysis is proposed to perform optimization of heat transfer processes, which are essential for hierarchical cycles. Proposed...

• Exergy Losses in the Szewalski Binary Vapor Cycle

  Publikacja

  • T. Kowalczyk
  • P. Ziółkowski
  • J. Badur

  - ENTROPY - Rok 2015

  In this publication, we present an energy and exergy analysis of the Szewalski binary vapor cycle based on a model of a supercritical steam power plant. We used energy analysis to conduct a preliminary optimization of the cycle. Exergy loss analysis was employed to perform a comparison of heat-transfer processes, which are essential for hierarchical cycles. The Szewalski binary vapor cycle consists of a steam cycle bottomed with...

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• Grzegorz Boczkaj dr hab. inż.

  Osoby

  Katedra Inżynierii Sanitarnej

• Exergetic Analysis of the nCO2PP Cycle with Particular Reference to the Exergy Destruction of Sewage Sludge Due to Gasification

  Publikacja

  • K. Stasiak
  • I. S. Ertesvåg
  • P. Ziółkowski
  • D. Mikielewicz

  - Rok 2023

  An exergy analysis is carried out on the negative CO2 emission gas power plant (nCO2PP), which integrates the process sections of fuel preparation, power generation and carbon capture. Processes of exergy destruction are studied with particular focus on the process in the gasification unit of the fuel preparation section, where a large amount of exergy is destroyed in various chemical reactions from sewage sludge to producer gas...

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• Exergy and Energy Analyses of Microwave Dryer for Cantaloupe Slice and Prediction of Thermodynamic Parameters Using ANN and ANFIS Algorithms

  Publikacja

  • S. Zadhossein
  • Y. Abbaspour-Gilandeh
  • M. Kaveh
  • M. Szymanek
  • E. Khalife
  • O. D. Samuel
  • M. Amiri
  • J. Dziwulski

  - ENERGIES - Rok 2021

  The study targeted towards drying of cantaloupe slices with various thicknesses in a microwave dryer. The experiments were carried out at three microwave powers of 180, 360, and 540 W and three thicknesses of 2, 4, and 6 mm for cantaloupe drying, and the weight variations were determined. Artificial neural networks (ANN) and adaptive neuro-fuzzy inference systems (ANFIS) were exploited to investigate energy and exergy indices of...

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• WATER SCIENCE AND TECHNOLOGY

  Czasopisma

  ISSN: 0273-1223 , eISSN: 1996-9732

• Review of hydrogen production technologies for automotive sector – thermodynamic analysis of energy and exergy losses

  Publikacja

  • T. Kowalczyk
  • J. Badur

  - Logistyka - Rok 2015

  Few recent years has shown that hydrogen technology has a good chance to replace petroleum technology in automotive sector. However, hydrogen in pure form practically does not occur on Earth. That is why H2 form is used only as an energy carrier and it must be produced using another source of energy form water or hydrocarbon fuels. In this paper short overview of hydrogen production technology has been presented, with energy and...