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Wyszukujesz frazę "open air space" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Method of Measurement of Low Sky Temperature Using Infrared Camera
Autorzy:
Kruczek, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/114300.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
thermovision measurements
open air space
radiation ambient temperature
radiation sky temperature
Opis:
During thermovision measurement in an open atmospheric space, the surroundings consists of two elements: the ground surface and apparent surface of the sky. To determine the equivalent ambient temperature it is necessary to know the temperature of the sky [3, 4]. It has been proposed to measure the temperature distribution of the sky using an infrared camera. However, such a measurement has a problem because often the temperature of the sky is too low to measure its value with an IR camera. The article presents a method for measuring the low temperature of the sky with a value outside the measuring range of the IR camera. The method consists in making a measurement with artificial values of measurement parameters that ensure obtaining the temperature value belonging to the measuring range of the camera. Then, using the developed algorithm, the obtained temperature value is converted to the actual conditions.
Źródło:
Measurement Automation Monitoring; 2019, 65, 1; 11-14
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conditions for the use of infrared camera diagnostics in energy auditing of the objects exposed to open air space at isothermal sky
Autorzy:
Kruczek, T.
Powiązania:
https://bibliotekanauki.pl/articles/240912.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thermovision diagnostics
infrared camera
radiative ambient temperature
open air space
diagnostyka termowizyjna
kamera termowizyjna
radiacyjna temperatura otoczenia
otwarta przestrzeń
Opis:
Convective and radiation heat transfer take place between various objects placed in open air space and their surroundings. These phenomena bring about heat losses from pipelines, building walls, roofs and other objects. One of the main tasks in energy auditing is the reduction of excessive heat losses. In the case of a low sky temperature, the radiation heat exchange is very intensive and the temperature of the top part of the horizontal pipelines or walls is lower than the temperature of their bottom parts. Quite often this temperature is also lower than the temperature of the surrounding atmospheric air. In the case of overhead heat pipelines placed in open air space, it is the ground and sky that constitute the surroundings. The aforementioned elements of surroundings usually have different values of temperature. Thus, these circumstances bring about difficulties during infrared inspections because only one ambient temperature which represents radiation of all surrounding elements must be known during the thermovision measurements. This work is aimed at the development of a method for determination of an equivalent ambient temperature representing the thermal radiation of the surrounding elements of the object under consideration placed in open air space, which could be applied at a fairly uniform temperature of the sky during the thermovision measurements as well as for the calculation of radiative heat losses.
Źródło:
Archives of Thermodynamics; 2015, 36, 1; 67-82
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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