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Wyświetlanie 1-3 z 3
Tytuł:
Evaluation of wet cooling tower replacement by Heller cooling tower in a power plant
Autorzy:
Malekmohamadi, Mohamad Hasa
Ahmadikia, Hossein
Golmohamadi, Siavas
Khodadadi, Hamed
Powiązania:
https://bibliotekanauki.pl/articles/27309880.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Heller cooling tower
wet cooling tower
condenser
power plant
wieża chłodnicza Hellera
mokra wieża chłodnicza
skraplacz
elektrownia
Opis:
Water resources are the main component of natural systems affected by climate change in the Middle East. Due to a lack of water, steam power plants that use wet cooling towers have inevitably reduced their output power. This article investigates the replacement of wet cooling towers in Isfahan Thermal Power Plant (ITPP) with Heller natural dry draft cooling towers. The thermodynamic cycle of ITPP is simulated and the effect of condenser temperature on efficiency and output power of ITPP is evaluated. For various reasons, the possibility of installing the Heller tower without increasing in condenser temperature and without changing the existing components of the power plant was rejected. The results show an increase in the condenser temperature by removing the last row blades of the low-pressure turbine. However, by replacing the cooling tower without removing the blades of the last row of the turbine, the output power and efficiency of the power plant have decreased about 12.4 MW and 1.68 percent, respectively.
Źródło:
Archive of Mechanical Engineering; 2023, LXX, 1; 129--149
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The assessment of the application of terrestrial laser scanning for measuring the geometrics of cooling towers
Autorzy:
Głowacki, T.
Grzempowski, P.
Sudoł, E.
Wajs, J.
Zając, M.
Powiązania:
https://bibliotekanauki.pl/articles/100605.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:
TLS
monitoring
displacements
cooling tower
hyperboloidal tower
wieża chłodnicza
Opis:
The investigation of technical condition of cooling towers is an important engineering issue. Regulations regarding safe operations of high structures force periodic measurements in order to determine technical state of such towers. This paper presents the processing methodology of laser scanning data and shows computation results of cooling tower W-1 shape changes. These results were referred to the designed shape of the tower in question. Tower surface displacements (deformations) are shown by plotting the deviations of the measured shape from the regular one. The determined changes in the surface shape are between –20 cm and 5 cm. This article presents the evaluation of the technical condition of the W-1 cooling tower.
Źródło:
Geomatics, Landmanagement and Landscape; 2016, 4; 49-57
2300-1496
Pojawia się w:
Geomatics, Landmanagement and Landscape
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study on Dynamic Behavior of Natural Draft Cooling Tower Considering the Effect of Soil-Structure Interaction
Autorzy:
Chitrahalli Lingaraju, Mahesh Kumar
Kotagi Girisha, Shwetha
Bhaktanakatte Channabasappa, Shanthappa
Karigowda, Manjunatha
Powiązania:
https://bibliotekanauki.pl/articles/2051545.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
hyperbolic cooling tower
Richter scale
dynamic response
natural frequency
maximum principal stress
soil-structure interaction
wieża chłodnicza
skala Richtera
badania dynamiczne
naprężenie główne
struktura gruntu
Opis:
In this present era, the technology in advanced construction has developed to a very large extent. Some parts of the constructions are still in the improving stage which includes cooling tower construction. Hyperbolic cooling towers are large, thin shell reinforced concrete structures which contribute to power generation efficiency, reliability, and to environmental protection. Cooling towers use evaporation of water to eject heat from processes such as cooling the circulating water used in oil refineries and in power plants. Nowadays in many thermal power plants, we can see the cooling tower. So, preserving this industrial structure is an effort to save the cooling tower from dangerous earthquakes. The present-day cooling towers are exceptional structures in view of their sheer size and complexities. Present paper deals with the study of dynamic response that is modal analysis, seismic analysis of the two different cooling towers varying the H/t ratio and thicknesses with fixity at the base boundary condition, and the soil is modelled as raft for the effect of soil-structure interaction using the direct approach. In this paper, hyperbolic cooling towers are modelled using ANSYS software, which is a finite element software. Results show that the soil-structure interaction effect significantly modifies the earthquake behavior of hyperbolic cooling towers.
Źródło:
Civil and Environmental Engineering Reports; 2021, 31, 4; 17-32
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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