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Wyszukujesz frazę "Skotnicka-Siepsiak, Aldona" wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Comparing the efficiency of evacuated tube and flat-plate solar collectors in real installation conditions
Autorzy:
Jurczak, Marlena Anna
Skotnicka-Siepsiak, Aldona
Powiązania:
https://bibliotekanauki.pl/articles/2065635.pdf
Data publikacji:
2020
Wydawca:
Politechnika Częstochowska
Tematy:
flat plate solar collectors
evacuated tube collectors
efficiency of solar collectors
płaskie kolektory słoneczne
kolektory rurowe
sprawność kolektorów słonecznych
Opis:
The subject of the work is an analysis of two types of solar collectors: flat-plate and evacuated tube collectors in the same, natural working conditions during the period from 1st May 2017 to 30th September 2017. The scope of work includes a descriptive presentation of a measuring setup, located on the roof of the building of the Construction University of Warmia and Mazury in Olsztyn, and also the research methodology, as well as an analysis of the results and conclusions obtained. The measurements allow a comparison of the efficiency of the flat-plate and evacuated tube collectors by calculating heat yields, based on the following variants: average hourly irradiation, outdoor air temperature, temperature of the medium supplying the collectors and temperature of the returning medium. An analysis of the heat yield was made in relations to the individual absorber surface, to determine which of the tested collectors showed higher efficiency under real operating conditions during the spring-summer period.
Źródło:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym; 2020, 9, 2; 31--38
2299-8535
2544-963X
Pojawia się w:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determining the degree of deformation in rain drainage installations through point cloud modeling
Autorzy:
Pawłowicz, Joanna A.
Skotnicka-Siepsiak, Aldona
Serrat, Carles
Powiązania:
https://bibliotekanauki.pl/articles/31342512.pdf
Data publikacji:
2023
Wydawca:
Politechnika Częstochowska
Tematy:
3D laser scanning
point clouds
inventory
3D modelling
roof drainage
skanowanie laserowe 3D
inwentaryzacja
modelowanie 3D
odwadnianie dachów
Opis:
Buildings are often complex and hindered by identifying and measuring deformation in both the building itself and its elements. However, we have the assistance of 3D laser scanning technology which allows us to collect geometric data. Scanners are particularly effective for measuring high and hard-to-reach locations. This paper focuses on the measuring and modeling of roof drainage installations, which are usually placed at elevated heights, making it impossible to measure using traditional methods. Rain gutters need constant monitoring in order to fulfill their function and ensure proper drainage of rainwater. Laser scanning produces a point cloud which can be converted in a 3D model using software such as Leica Cyclone, AutoCad and ReCap. This study demonstrates the successful utilization of laser scanning in identifying geometric features and deformations in building installations.
Źródło:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym; 2023, 12; 63-69
2299-8535
2544-963X
Pojawia się w:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of rotational speed of a self-aspirating mixer on oxygen saturation in water
Autorzy:
Wróblewski, Andrzej
Skotnicka-Siepsiak, Aldona
Powiązania:
https://bibliotekanauki.pl/articles/1585063.pdf
Data publikacji:
2020
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
water aeration
self-aspirating mixer
tubular mixer
Opis:
There are two categories of gas-liquid mixers: conventional and special-purpose. In theory, any conventional mixer can be applied to aerate a liquid, but fast-rotating devices are generally preferred. Special-purpose mixers (tubular, prismatic, cylindrical) have a hollow shaft, and operate by drawing gas from above the surface of the liquid and dispersing it inside the liquid. This process is referred to as aspirated aeration. In contrast, conventional mixers increase the pressure of the aspirated gas. Gas drawn from above the surface of the liquid flows through channels bored inside the shaft and the impeller, and is introduced to the liquid in this way. This article presents the results of an experiment investigating the aeration efficiency of a six-tube self-aspirating mixer at different rotational speeds. The experiment was conducted in a flow tank. The results indicate that self-aspirating mixers are effective devices for water aeration and mixing.
Źródło:
Polish Maritime Research; 2020, 3; 182-188
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
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