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Wyświetlanie 1-10 z 44
Tytuł:
Słoneczna temperatura przegrody pionowej w warunkach klimatu lokalnego
Solar-air temperature of vertical building structure in local climate
Autorzy:
Wojewódka, D.
Wilk, B.
Powiązania:
https://bibliotekanauki.pl/articles/362800.pdf
Data publikacji:
2007
Wydawca:
Instytut Fizyki Budowli Katarzyna i Piotr Klemm
Tematy:
słoneczna temperatura
współczynnik absorpcyjności promieniowania słonecznego
solar-air temperature
Opis:
W artykule autorzy podjęli próbę oceny wpływu promieniowania słonecznego na pionowe przeszkody budowlane w warunkach klimatu lokalnego, w zależnosci od parametrów materiałowych powierzchni przegrody. Wpływ promieniowania słonecznego wyrażony został przez temperaturę słoneczną. Analiza została przeprowadzona na podstawie pomiarów całkowitego promieniowania słonecznego padającego na płaszczyznę pionową, uzyskanych na stanowisku badawczym zakładu Budownictwa Ekologicznego.
In the paper a trial of the influence of total solar radiation on vertical building structures was taken up. The influence of solar radiation was described on research stand of Department of Building Processes of Silesian University of technology were used in calculations.
Źródło:
Fizyka Budowli w Teorii i Praktyce; 2007, T. 2; 311-316
1734-4891
Pojawia się w:
Fizyka Budowli w Teorii i Praktyce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected problems concerning maintenance of structures
Wybrane problemy utrzymania obiektow budowlanych
Autorzy:
Slusarek, J.
Powiązania:
https://bibliotekanauki.pl/articles/40569.pdf
Data publikacji:
2007
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
building element
external environment
building structure
maintenance
sustainable building
sustainable development
durability
rehabilitation method
repair method
environment condition
building material
diagnostic test
local climate
solar temperature
thermal stress
Źródło:
Acta Scientiarum Polonorum. Architectura; 2007, 06, 4; 3-21
1644-0633
Pojawia się w:
Acta Scientiarum Polonorum. Architectura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Weather patterns of the coastal zone of Petuniabukta, central Spitsbergen in the period 2008–2010
Autorzy:
Láska, Kamil
Witoszová, Denisa
Prošek, Pavel
Powiązania:
https://bibliotekanauki.pl/articles/2051435.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Svalbard
climate
temperature
solar radiation
Źródło:
Polish Polar Research; 2012, 4; 297-318
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of the effect of insect net used in greenhouse on indoor conditions: pepper plant sample
Autorzy:
Ocak, Aytekin
Atılgan, Atılgan
Powiązania:
https://bibliotekanauki.pl/articles/101436.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
insect net
solar radiation
temperature
greenhouse
Opis:
The aim of this study is to determine the effects of insect net placed on ventilation openings in greenhouses on temperature, humidity and radiation energy from indoor conditions. In addition, the effects of insect net on the agents used in biological control have been tried to be determined. The study was carried out between November 2017 and May 2018 in Kumluca district of Antalya in 2 glass and 2 plastic greenhouses. Greenhouses; the glass greenhouse without insect net (GCG), the glass greenhouse with insect net (GNG), the plastic greenhouse without insect net (PCG), the plastic greenhouse with insect net (PNG) is named as. Temperature, humidity and solar radiation values were measured in greenhouses. According to the results of the research; It was determined that the recommended temperature values for pepper development are only suitable in January and well below the recommended values in February. In other production months, the average temperature values of with insect net greenhouses (PNG-GNG) used in ventilation openings were found to be higher than without insect net greenhouses (PCG-GCG). When the results of relative humidity values were examined, it was observed that the use of insect tulle in the greenhouses was lower than the control greenhouses. It was determined that the solar radiation values were lower than the control greenhouses (PCG-GCG) of the insect tulle greenhouses (PNGGNG) in other months except January and May. Therefore, we can say that the use of insect net reduces the amount of solar radiation. Accord ing to the results of temperature values; the growth of Orius Leavigatus and Amblyseius swirski, one of the biological agents and resistant to high temperatures, was observed to slow down in all other months except February. For Phytoseiulus persimilis (30°C and above), we can say that this is a suitable environment and that the eggs have emerged in a shorter time. The most suitable average temperature for the development of Aphidius colemani was reached only in January. In other months, the development of this agent slows down, parasitic insecticides can be said to decrease the rate of parasitoids. As a result; It was determined that the temperature values were higher in the greenhouses where insect net was used and the solar radiation values were lower than the control greenhouses. However, since the use of insect net causes the temperature in the greenhouse to increase, it may create a positive development for some bio agents. It is thought that producers using insect net should make production considering these negativities in temperature and solar radiation.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2019, III/1; 197-217
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variation in Direct Solar Irradiation with Relative Humidity and Atmospheric Temperature
Autorzy:
Wazwaz, Aref
Khan, Mohd Shariq
Powiązania:
https://bibliotekanauki.pl/articles/124148.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
solar irradiation
pyranometer
relative humidity
atmospheric temperature
accumulative solar flux
Opis:
A class first Pyranometer was used to measure the direct solar irradiation and the obtained results were analyzed. Separate sensors were used to measure the relative humidity and the atmospheric temperature (RH/AT sensors). The measurements were conducted for the whole year of 2013. The author analyzed the collected solar data during one day, month, and year. The maximum, minimum, average, and accumulative solar irradiation (SR) were calculated and analyzed with connection to relative humidity and atmospheric temperature. The author found that April was characterized by the average maximum solar irradiation (SR= 1112±1W/m2), May had the maximum SR accumulation (13276552± 1W/m2). The maximum average percentage relative humidity found in July (% RH = 97± 3%), while the minimum average % RH is in December (% RH = 25± 3%). In May, the maximum average atmospheric temperature was 36.0 ± 0.6°C, while the average minimum was in January (AT= 19.1 ± 0.6°C). The total accumulation of solar flux during the year 2013 is 222 ± 1MW/m2.
Źródło:
Journal of Ecological Engineering; 2019, 20, 9; 38-43
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperature Effect on Performance of Different Solar Cell Technologies
Autorzy:
Adeeb, Jehad
Farhan, Alaa
Al-Salaymeh, Ahmed
Powiązania:
https://bibliotekanauki.pl/articles/124356.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
solar cell
photovoltaics
temperature effect
multicrystalline silicon solar cell
amorphous silicon solar cell
monocrystalline
Opis:
One of the main parameters that affect the solar cell performance is cell temperature; the solar cell output decreases with the increase of temperature. Therefore, it is important to select the proper solar cell technology that performs better at a specified location considering its average temperatures. In addition, the solar cell performance is directly reflected on the overall economics of the project. This paper is proposed to evaluate the variations in the performance of different solar cell technologies related to the temperature in Amman, Jordan. Field data of weather station and three PV systems (Poly-crystalline, Mono-crystalline and Thin-film) of identical design parameters were collected from Test Field Project at Applied Science Private University, Shafa Badran, Amman, Jordan. These data were analysed in the following way. estimated specific energy yield (kWh/kWp) for the three different PV systems was calculated depending on the measured value of solar irradiance and technical specifications of the installed solar panels and inverters, then the actual energy yield at different temperatures over one year was compared with the estimated value, so the deviations could be determined and actual temperature coefficients for energy yield could be calculated, knowing that the three PV Systems have identical design parameters (tilt angle, azimuth angle, type and dimensions of mounting structure and inverter size) and same cleaning method and schedule. It was found that the thin-film solar panels are less affected by temperature with temperature coefficient of -0.0984%, and -0.109%, -0.124% for Mono-crystalline and Poly-crystalline respectively. These results can be implemented in the preliminary design steps, specifically in the selection of the solar cell technology to be installed in a specific location.
Źródło:
Journal of Ecological Engineering; 2019, 20, 5; 249-254
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ promieniowania słonecznego na temperaturę wewnątrz przegrody trójwarstwowej w okresie zimowym
Influence of solar radiation to the temperature inside a three-layer partition in winter season
Autorzy:
Antonik-Popiołek, P.
Powiązania:
https://bibliotekanauki.pl/articles/2084044.pdf
Data publikacji:
2021
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
outside wall
solar radiation
temperature
smart building
Opis:
The article presents an analysis of the impact of solar radiation on the temperature changes in the external three-layer partition of a smart building. Data for analysis were taken from temperature sensors located in individual layers of the wall and from a weather station on the roof of a building. The data were recorded 24 h in 5- and 15-minute intervals. The analysis period was one month in a winter season. The purpose of the analysis was to determine the correlation between the solar radiation measured as the illuminance and the temperature inside the wall. In the analysed period of one month the correlation was very weak. Also, considering only the illuminance over 10,000 lx, the correlation was noticeable, but still very weak. The use of innovative fiber optic technology with fibre Bragg grating was proposed to avoid incorrect measurements.
Źródło:
Acta Scientiarum Polonorum. Architectura; 2021, 20, 2; 75-82
1644-0633
Pojawia się w:
Acta Scientiarum Polonorum. Architectura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photovoltaic thermal as a hybrid form of obtaining energy from solar radiation
Autorzy:
Głuchy, D.
Kurz, D.
Trzmiel, G.
Powiązania:
https://bibliotekanauki.pl/articles/377221.pdf
Data publikacji:
2014
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
photovoltaics
solar collector
Photovoltaic Thermal
PV temperature
Opis:
The work presents a method for hybrid connection of two systems used to obtain energy from solar radiation. The influence of temperature increase of the photovoltaic element on its efficiency was characterized. Two options for the construction of a system of the photovoltaic thermal type which are currently available for sale were presented. The advantages and disadvantages of connecting a collector installation with a photovoltaic installation were identified.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2014, 79; 175-180
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warming and cooling of the Earths climate and their causes
Autorzy:
Boryczka, Jerzy
Szmajda, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/2032466.pdf
Data publikacji:
2006-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
solar radiation
temperature
greenhouse effect
spectrum
solar activity
mass moments of planets
Opis:
The progressing wanning of the Earth's climate is mainly caused by natural factors, that is, the increasing solar activity and the decreasing volcanic activity on the Earth. The aspects which testify to the predominance o f natural factors include: synchronous changes in the average air temperature in the Northern Hemisphere in the years 1856-2002, the average consecutive 11-year Wolf numbers and the location of the mass centres o f the four largest planets. Natural causes o f the climate warming are corroborated by the synchronicity o f changes in the carbon dioxide concentration and paleotemperature in the last 450,000 years, revealed on the basis o f an analysis o f the ice core in Antarctica. Periods o f climate warming occur every 100,000 years and are caused by an increased solar radiation in high latitudes, resulting from changes in the Earth's orbit and the inclination of the Earth axis (according to the popular Milanković theory).
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2006, 12; 31-41
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of ambient air temperature and solar radiation on changes in bacterial and fungal aerosols concentration in the urban environment
Autorzy:
Kowalski, M.
Pastuszka, J.S.
Powiązania:
https://bibliotekanauki.pl/articles/2081692.pdf
Data publikacji:
2018
Wydawca:
Instytut Medycyny Wsi
Tematy:
Bioaerosol
solar radiation
sterilization
airborne microorganisms
temperature breakpoint
Opis:
Bioaerosols are particularly sensitive to sterilization processes due to their biological characteristics. Phenomena occurring in the atmosphere have major influence on airborne bacteria and fungi concentration levels. The presented study evaluates the sterilization properties of ambient air temperature and solar radiation on viable bioaerosols concentration levels in outdoor air in Gliwice, Poland. Assigned were the breakpoints indicating limited stimulation properties of the air temperature, which amounted 7.5 °C for bacterial aerosol and 16.5 °C for fungal aerosol. Also revealed was the influence of solar radiation properties on decreasing the bioaerosols concentration levels. Both bacterial and fungal viable aerosol were sensitive to this radiation, although the phenomenon was more effective for airborne bacteria.
Źródło:
Annals of Agricultural and Environmental Medicine; 2018, 25, 2; 259-261
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 44

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