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Usuwanie szkodliwych zanieczyszczeń powietrza w ramach wdrażania rozwiązań czystszej produkcji w firmie ,,Farmutil"

Zygmunt Kowalski Anna Maślanka Ewa Surowiec
Archives of Environmental Protection | 2007 | vol. 33 | No 4 | 83-95
Słowa kluczowe air impurities meat and bone meal cleaner production
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Abstrakt

Zakładzie Rolniczo-Przemysłowym .,FARMUTIL HS" w Śmiłowic, realizującym w praktyce program .,czystszej produkcji", likwidacja odorów powstających podczas wytwarzania mączki mięsno-kostnej jest niezwykleważna. Na emitorach inslalacji do termicznego unieszkodliwiania odorówz produkcji mączki mięsnokostncj wykonywano pomiary stężeń i emisji lakich związkówjak: pył ogółem, substancje organiczne w postaci gazów i par wyrażone jako całkowity węgiel organiczny, chlorowodór, fluorowodór, dwutlenki siarki i azotu, tlenek węgla, metale ciężkie oraz polichlorowane dibcnzodioksyny i dibcnzofurany. Wyniki przeprowadzonych pomiarów i analiz składu spalin emitowanych do atmosfery wykazały, że stężenie szkodliwych związków chemicznych było niskie, poniżej wartości dopuszczalnych określonych w normach.
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Autorzy i Afiliacje

Zygmunt Kowalski
Anna Maślanka
Ewa Surowiec

Characteristics of 13th-century mortars from the tower at Lublin Castle

Beata Klimek
Archives of Civil Engineering | 2023 | vol. 69 | No 2 | 83-95 | DOI: 10.24425/ace.2023.145254
Słowa kluczowe historical mortars from the 13th century research Lublin castle tower
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Abstrakt

The tower at Lublin Castle, known as the donjon, is the only monument of Romanesque art on the eastern side of the Vistula River. The cylindrical, brick building is part of the Lublin Castle complex. During contemporary restoration work, the 13th-century walls were uncovered, making it possible to retrieve the original materials. The article presents the mineralogical, chemical and granulometric characteristics. The analytical methodology included: qualitative mineralogical analysis of the whole sample by X-ray diffraction (XRD); morphological studies with elemental evaluation and microanalysis of the binder by scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM-EDS). Residue determination of hydrochloric acid-insoluble parts and their granulometric analysis were performed. This methodology enabled to determine the composition of the mortars. It was found that the tested mortars have a similar mineralogical structure, but slightly differ in the proportion of individual components, primarily aggregate fractions. The samples consist mainly of quartz, calcite, and silicates. Moreover, the lime binder of the mortars was shown to be microcrystalline in nature. The aggregate used in historical mortars predominantly consisted of quartz sand and minerals of the feldspar and silicate group. The condition of the mortars requires conservation interventions. The performed characterization of the historic mortars was important for designing compatible restoration mortars.
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Autorzy i Afiliacje

Beata Klimek
1
ORCID: ORCID
  1. Lublin University of Technology, Faculty of Civil Engineering and Architecture, Department of Conservation and Built Heritage, Nadbystrzycka St. 40, 20-618 Lublin, Poland

Investigations of carbon dioxide absorption into aqueous potassium carbonate solutions containing primary and secondary alkanolamines

Władysław Moniuk Cezary Możeński Grzegorz Bińczak Zofia Mordecka
Chemical and Process Engineering | 2016 | vol. 37 | No 1 March | 83-95 | DOI: 10.1515/cpe-2016-0009
Słowa kluczowe carbon dioxide absorption alkanolamines potassium carbonates laminar jet
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Abstrakt

In the paper the results of measurements of CO2 absorption rate in aqueous potassium carbonate solutions containing cyclohexylamine, diethanolamine, 2-methylaminoethanol and triethylenetetramine as activators have been presented. Enhnancement mass transfer factors as well as reaction rate constants have been determined. Results show that among the tested activators triethylenetetramine and 2-methyl-aminoethanol may be used (instead of diethanolamine) as new promotors in a modified BENFLIELD process.

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Autorzy i Afiliacje

Władysław Moniuk
Cezary Możeński
Grzegorz Bińczak
Zofia Mordecka

Thermo-economic comparative analysis of gas turbine GT10 integrated with air and steam bottoming cycle

Sebastian Lepszy Daniel Czaja Tadeusz Chmielnak
Archives of Thermodynamics | 2014 | No 4 December | 83-95 | DOI: 10.2478/aoter-2014-0035
Słowa kluczowe gas turbine air bottoming cycle air bottoming cycle gas turbine GT10
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Abstrakt

A thermodynamic and economic analysis of a GT10 gas turbine integrated with the air bottoming cycle is presented. The results are compared to commercially available combined cycle power plants based on the same gas turbine. The systems under analysis have a better chance of competing with steam bottoming cycle configurations in a small range of the power output capacity. The aim of the calculations is to determine the final cost of electricity generated by the gas turbine air bottoming cycle based on a 25 MW GT10 gas turbine with the exhaust gas mass flow rate of about 80 kg/s. The article shows the results of thermodynamic optimization of the selection of the technological structure of gas turbine air bottoming cycle and of a comparative economic analysis. Quantities are determined that have a decisive impact on the considered units profitability and competitiveness compared to the popular technology based on the steam bottoming cycle. The ultimate quantity that can be compared in the calculations is the cost of 1 MWh of electricity. It should be noted that the systems analyzed herein are power plants where electricity is the only generated product. The performed calculations do not take account of any other (potential) revenues from the sale of energy origin certificates.
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Autorzy i Afiliacje

Sebastian Lepszy
Daniel Czaja
Tadeusz Chmielnak

Evaluation of skull bone structures in CT imaging

Andrzej Ryniewicz Wojciech Ryniewicz Stanisław Wyrąbek Łukasz Bojko
Archive of Mechanical Engineering | 2019 | vol. 66 | No 1 | 83-95 | DOI: 10.24425/ame.2019.126373
Słowa kluczowe skull shape imaging precision spiral computed tomography reverse engineering
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Abstrakt

At the current stage of diagnostics and therapy, it is necessary to perform a geometric evaluation of facial skull bone structures basing upon virtually reconstructed objects or replicated objects with reverse engineering. The objective hereof is an analysis of imaging precision for cranial bone structures basing upon spiral tomography and in relation to the reference model with the use of laser scanning. Evaluated was the precision of skull reconstruction in 3D printing, and it was compared with the real object, topography model and reference model. The performed investigations allowed identifying the CT imaging accuracy for cranial bone structures the development of and 3D models as well as replicating its shape in printed models. The execution of the project permits one to determine the uncertainty of components in the following procedures: CT imaging, development of numerical models and 3D printing of objects, which allows one to determine the complex uncertainty in medical applications.

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Bibliografia

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Autorzy i Afiliacje

Andrzej Ryniewicz
1 2
Wojciech Ryniewicz
3
Stanisław Wyrąbek
1
Łukasz Bojko
4
  1. Cracow University of Technology, Faculty of Mechanical Engineering, Poland.
  2. State University of Applied Science, Nowy Sącz, Poland.
  3. Jagiellonian University Medical College, Faculty of Medicine, Dental Institute, Department of Dental Prosthodontics, Cracow, Poland.
  4. AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Machine Design and Technology, Cracow, Poland.

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