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Wyszukujesz frazę "Relative humidity" wg kryterium: Temat


Tytuł:
Effects of Changes in Temperature, Rainfall and Relative Humidity on Banana Production in Ondo State, Nigeria
Autorzy:
Salau, Opeyemi R.
Momoh, Marvelous
Olaleye, Oluwatosin A.
Owoeye, Rufus S.
Powiązania:
https://bibliotekanauki.pl/articles/1190205.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Banana
Plantain
Rainfall
Temperature
Agriculture
Relative Humidity
Opis:
The effects of climate change on agriculture may have strong impacts on the world’s food economy and are likely to threaten both the welfare of the world’s population and the economic development of the global society. Hence, the impacts of changes in important climate variables like temperature, rainfall and relative humidity on the production of a major food commodity called banana is investigated using the data obtained within 1998-2012 from Ondo State, Nigeria. The results suggest that excessive rainfall and extremely high temperature can reduce banana productivity while the production is also small when both rainfall and temperature are very low with poor humidity. On the average, the findings show that a mean temperature of about 26 °C and average rainfall of around 1891mm with relative humidity of approximately 77% will lead to good annual banana production above 61,000 tons in Ondo State. Since these climate variables will fluctuate under a future climate change condition, the coping strategies recommended for farmers in the area and in similar places might include planting of drought- and disease resistant banana types, monitoring of weather conditions, use of irrigation and chemicals. Improved storage facilities are also important while transportation of banana should be done under controlled conditions to avoid spoiling the quality.
Źródło:
World Scientific News; 2016, 44; 143-154
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on Solving Drinking Water Problems of a Household in Coastal regions of Odisha, India
Autorzy:
Mohapatra, Ramesh Chandra
Powiązania:
https://bibliotekanauki.pl/articles/1062896.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Atmospheric Water Generator
Dehumidifier unit
Desalination
Relative humidity
Opis:
Though water covers more than two-third (about 70%) of the earth’s surface, still fresh water used for drinking purposes remains scarce (only about 2.5%). This is mainly due to presence of long coastlines & island nations. As a result most of the countries meet their water demands by desalination of sea water which is a very costly affair. In India, the state like Odisha has a long coastline. Till now Odisha has not developed a method from which water from sea can be used to provide drinking water to the people. The aim of this present work is to develop a portable device that can be used to meet the water requirement of a regular household. The device will first condense the water present in the atmosphere & then purify it so that it can be used for drinking. Such a device is called Atmospheric Water Generator. From this work, it was found that if the ambient temperature is 35 ºC or higher & if the relative humidity is greater than 50% then the device will function well & it will start condensing water. Thus in order to work the device in coastal areas of Odisha metrological datas are collected from internet for major coastal cities of Odisha and found that the relative humidity of coastal cities in Odisha remains above 50% throughout the year. Hence the developed device will work round the year without any problem.
Źródło:
World Scientific News; 2019, 127, 3; 311-324
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Changes in Temperature and Relative Humidity in Lagos State, Nigeria
Autorzy:
Salau, Opeyemi R.
Powiązania:
https://bibliotekanauki.pl/articles/1182945.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
temperature
relative humidity
rainfall
global warming
heat stroke
lagos
Opis:
The variability in the temperature and Relative Humidity (RH) observed within Lagos State, a coastal region in Nigeria, is investigated using data from Nigeria Meteorological Agency (NIMET) for 1980 to 2010. The results reveal an annual mean value of 27.20°C and 83.01% for the temperature and RH respectively and an increasing trend in RH over the study period while such rising trend in the mean temperature is reversed from 2005 to 2010. The findings show an inverse relationship between the temperature and RH while it further indicates that low temperature is associated with increased rainfall under the accompanying cloudy condition and vice versa. These observations are supported by the strong correlation coefficients between the RH and the rainfall (0.72) and that between the RH and the temperature (-0.95) while -0.59 is obtained between the rainfall and the corresponding temperature. The correlations show that the impacts of the precipitation on RH are stronger than the effects it has on the temperature while both temperature and RH strongly depends on each other. Hence, under a future global warming, extremely warm atmospheric condition characterized by high RH in the coastal region could cause heat stroke, discomfort and health problems among the inhabitants. However, the area becomes conducive and attractive to tourists under moderate RH and good temperature.
Źródło:
World Scientific News; 2016, 49, 2; 295-306
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of models for the dew point temperature determination
Autorzy:
Górnicki, K.
Winiczenko, R.
Kaleta, A.
Choińska, A.
Powiązania:
https://bibliotekanauki.pl/articles/298023.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
dew point temperature
relative humidity
model
artificial neural networks
Opis:
The accuracy of the available from the literature models for the dew point temperature determination was compared. The proposal of the modelling using artificial neural networks was also given. The experimental data were taken from the psychrometric tables. The accuracies of the models were measured using the mean bias error MBE, root mean square error RMSE, correlation coefficient R, and reduced chi-square χ2 . Model M3, especially with constants A=237, B=7.5, gave the best results in determining the dew point temperature (MBE: -0.0229 – 0.0038 K, RMSE: 0.1259 – 0.1286 K, R=0.9999, χ2 : 0.0159 – 0.0166 K2 ). Model M1 with constants A=243.5, B=17.67 and A=243.3, B=17.269 can be also considered as appropriate (MBE=-0.0062 and -0.0078 K, RMSE=0.1277 and 0.1261 K, R=0.9999, χ2 =0.0163 and 0.0159 K2 ). Proposed ANN model gave the good results in determining the dew point temperature (MBE=-0.0038 K, RMSE=0.1373 K, R=0.9999, χ2 =0.0189 K2 ).
Źródło:
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2017, 20(3); 241--257
1505-4675
2083-4527
Pojawia się w:
Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the influence of high humidity and exposure duration on the measurement results of radon concentration by means of PicoRad system in the CLOR calibration chamber
Autorzy:
Stawarz, O.
Karpińska, O.
Mamont-Ciesla, K.
Powiązania:
https://bibliotekanauki.pl/articles/148604.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
radon
activated charcoal
relative humidity
duration of exposure
PicoRad system
Opis:
PicoRad system based on activated charcoal collectors and liquid scintillation counter is one of the most popular passive methods of radon measurements which may be used both indoors and in other environments such as caves, tunnels, mines etc. It is well known that charcoal is also a very good adsorber of water vapor and it can reduce adsorption efficiency for radon. In PicoRad collectors, the charcoal is mixed with a dessicant to lower this effect. A series of expositions of PicoRad detectors was performed in a Central Laboratory for Radiological Protection (CLOR) radon calibration/climatic chamber to study the effect of high relative humidity on the airborne radon concentration measurements and the dependence of the results on the duration of exposure. The results obtained from the PicoRad system were referred to the mean concentrations delivered by an AlphaGUARD monitor, Genitron (GmbH), Germany. The main conclusions are the following: 1) the PicoRad system results are not affected by high relative humidity, including extreme values of 90-96%, for the duration of exposure up to ca. 24 h; 2) in the relative humidity range of 75-96% the correction coefficient linearly depends on the duration of exposure reaching a value of ca. 16 for 96 h exposure; 3) the PicoRad system delivers results corresponding better to the mean value of radon concentration in the last 6 h interval of exposure than that in the whole exposure duration. This finding is particularly important for the calibration of PicoRad collectors in the conditions of decreasing radon concentration due to radon decay.
Źródło:
Nukleonika; 2006, 51,suppl.2; 53-57
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania wstępne stabilności wilgotnościowej produktów ekstrudowanych
Preliminary investigation of moisture stability of extrudated products
Autorzy:
Ekielski, A.
Powałka, M.
Żelaziński, T.
Powiązania:
https://bibliotekanauki.pl/articles/289379.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
ekstruzja
wilgotność względna
komora klimatyczna
extrusion
relative humidity
climatic chamber
Opis:
Celem pracy było zbadanie wpływu zmiennych warunków wilgotnościowych na dynamikę wchłaniania wilgoci z powietrza przez produkty ekstrudowane. Materiałem wykorzystywanym w badaniach był ekstrudat pszenno-kukurydziany wyprodukowany na ekstruderze dwuślimakowym. Próbki poddawane były działaniu trzech czynników: temperatury, wilgotności względnej i czasu oddziaływania, podczas przechowywania ich w komorze klimatycznej. Stwierdzono, że ekstrudaty charakteryzowały się dużą wrażliwością na zmienne warunki przechowywania. Obserwowano szybki wzrost ich wilgotności masowej, szczególnie w pierwszych godzinach przechowywania w komorze klimatycznej.
The objective of the paper was to evaluate the influence of variable humidity conditions, especially dynamic water absorption from air, on the extrudated products. The material used for the research was the wheat - corn extrudate processed in a double-screw extruder. During the storage in the climatic chamber three factors influenced the investigated samples: temperature, relative humidity and the storage time. It was found that extrudates were characterized with considerable sensibility on variable conditions of the storage. Rapid growth of the absorbed humidity mass, particularly in the initial hours of the storage in the climatic chamber was reported.
Źródło:
Inżynieria Rolnicza; 2013, R. 17, nr 2, t. 1, 2, t. 1; 53-60
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Principles of pulse-jet filters used in the woodworking industry
Autorzy:
Rogoziński, Tomasz
Trofimov, Sergei
Powiązania:
https://bibliotekanauki.pl/articles/2201237.pdf
Data publikacji:
2019
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
wood dust
pulse-jet filter
filtration velocity
air relative humidity
Opis:
Principles of pulse-jet filters used in the woodworking industry. The pulse-jet filters used to separate wood dust and factors influencing their operation were described in this paper. The analysis of the possibility of the use of pulse-jet filters for wood dust separation presented in this work was based on two basic quantitative criteria. These are the separation efficiency and the pressure drop in the filtration process performed in a dust collector. The influence of wood dust type, filtration velocity and air relative humidity the separation efficiency and the pressure were described.
Zasady stosowania filtrów z regeneracją pneumatyczną w przemyśle drzewnym. W artykule opisano problematykę wykorzystania filtrów z regeneracją pneumatyczną do oddzielania pyłu drzewnego oraz zasadnicze czynniki wpływające na ich działanie. Przedstawiona w niniejszej pracy analiza możliwości zastosowania filtrów z regeneracja pneumatyczną do separacji pyłu drzewnego opierała się na dwóch podstawowych kryteriach ilościowych: skuteczności separacyjnej i spadku ciśnienia w procesie filtracji w kolektorze pyłu. Opisano wpływ rodzaju pyłu drzewnego, prędkości filtracji i wilgotności względnej powietrza na skuteczność oddzielania pyłu i następujący przy tym spadek ciśnienia.
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2019, 105; 98--101
1898-5912
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warunki wilgotnościowe powietrza na zrębie zupełnym i gnieździe
Air humidity on the clear-cut and the gap
Autorzy:
Chojnacka-Ożga, L.
Ożga, W.
Andrzejczyk, T.
Powiązania:
https://bibliotekanauki.pl/articles/979332.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
clear−cut
gap
vapour pressure
relative humidity
vapour pressure deficit
Opis:
The aim of the study was to determine the spatial variation of vapour pressure (e), relative humidity (f) and vapour pressure deficit (Δ) on the clear−cut and gap as well as to compare the spatial distribution of air humidity conditions on both areas. The research was carried out in Rogów Forest Experimental Station (51.827023°N, 19.922315°E) on a clear−cut with a width of 60 m and on a gap of an ellipsoid shape (40×70 m). The measurements were carried out in two series: spring−summer, i.e. in the period when the height of the sun during the day conditioned inflow of direct solar radiation to any surface (May−August 2006), and autumn, i.e. when direct radiation was limited by neighbouring stands (October−November 2006). We found the modest spatial diversification of vapour pressure that, on average, amounted to 0.4 and 0.2 hPa in the clear−cut and gap, respectively, in spring−summer period as well as 0.3 and 0.7 hPa, respectively, in the autumn. The major impact of the clear−cut and gap location was marked in relative humidity and humidity deficit. Differences in relative humidity on the clear−cut amounted averagely to 3.7 and on the gap 12.7%, whereas the humidity deficit equalled 0.3 and 5.4 hPa, respectively. Particularly large diversification of relativity humidity and vapour pressure deficit was in spring−summer period in the situation of heat waves. In that weather conditions in sun−filled clear−cut and gap parts, the relativity humidity fall to about 17%, whereas vapour pressure deficit increased to about 60 hPa. In the same clear−cut and gap parts the occurrence of dry days was more frequent that in other places. It was noticed that in the positions located in sun−filled clear−cut and gap parts (z4, g3), the diurnal vapour pressure course was very similar to the one observed in the forest, whereas the course of the relativity humidity and vapour pressure deficit was significantly different. That is mainly involved with the extreme thermal conditions in this parts of the studied areas. The least beneficial humidity conditions for plants growth occurred in the north−east parts of clear−cut and gap, that’s why it necessary to take particular note of these locations when undertaking the silvicultural treatments.
Źródło:
Sylwan; 2020, 164, 07; 594-603
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of Selected Parameters of Microclimate in a Stand Alone Cellar Plunged into Soil
Autorzy:
Nawalany, G.
Sokołowski, P.
Herbut, P.
Angrecka, S.
Powiązania:
https://bibliotekanauki.pl/articles/123949.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
cellar plunged into soil
air temperature
air relative humidity
soil
Opis:
The thesis presents the analysis of development of selected parameters of microclimate in a standalone cellar plunged into soil. The scope of studies included measurement of air internal and external temperature and relative humidity of internal and external air. The thesis also concerns the analysis of heat exchange of cellar compartments with the surrounding soil. The studies were carried out from July 11, 2012 to July 10, 2013. The analysis of the obtained results of studies proved that the internal air temperature in the examined cellar was mainly formed by the external air temperature as well as by the surrounding soil. For 42% of storage period, the thermal conditions in the cellar plunged into soil were unfavorable which disqualifies the cellar’s purpose for storage of vegetables, e.g. potatoes. Too high temperature was observed in the initial and final period. Favorable storage conditions were experienced only in the period from December 14, 2012 to April 11, 2013. To adjust this kind facility for storage of vegetables, thermal insulation of compartments and installation of cooling units is required.
Źródło:
Journal of Ecological Engineering; 2017, 18, 3; 156-161
2299-8993
Pojawia się w:
Journal of Ecological Engineering
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:
The effects of humidity on the stability of LTCC pressure sensors
Autorzy:
Santo Zarnik, M.
Belavic, D.
Powiązania:
https://bibliotekanauki.pl/articles/221696.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thick-film piezoresistive sensors
capacitive pressure sensors
offset stability
relative humidity
Opis:
LTCC-based pressure sensors are promising candidates for wet-wet applications in which the effect of the surrounding media on the sensor's characteristics is of key importance. The effect of humidity on the sensor's stability can be a problem, particularly in the case of capacitive sensors. A differential mode of operation can be a good solution, but manufacturing the appropriate sensing capacitors remains a major challenge. In the case of piezoresistive sensors the influence of humidity is less critical, but it still should be considered as an important parameter when designing sensors for low-pressure ranges. In this paper we discuss the stability of the sensors' offset characteristics, which was inspected closely using experimental and numerical analyses.
Źródło:
Metrology and Measurement Systems; 2012, 19, 1; 133-140
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystywanie sieci neuronowej do estymacji wartości wilgotności względnej powietrza na podstawie wartości jego temperatury
Using the neural network to estimate the air relative humidity on the basis of its temperature value
Autorzy:
Białobrzewski, I.
Powiązania:
https://bibliotekanauki.pl/articles/287286.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
wilgotność względna powietrza
sieci neuronowe
Matlab
air relative humidity
neural networks
MATLAB
Opis:
Przedstawiono wyniki badań wykorzystania sieci neuronowej do estymacji wartości wilgotności względnej powietrza atmosferycznego na podstawie wartości jego temperatury. Stwierdzono, że modelowe wartości uzyskane dla jednokierunkowej sieci neuronowej, o topologii perceptronu wielowarstwowego z czasowym opóźnieniem, wykorzystującej algorytm wstecznej propagacji błędu oddają charakter zmian empirycznych RH. Sieć taka może być z zadawalającą dokładnością wykorzystana do estymacji dobowych, średnich wartości wilgotności względnej powietrza atmosferycznego.
The work presents the research results of using the neural network to estimate the air relative humidity on the basis of its temperature value. It was established that the model values obtained for the unidirectional neural network of the multi-layer perceptron topology with time delay, using error backward propagation algorithm, reflect the character of RH empirical changes. Such network may be used, with satisfactory precision, for daily estimations of the average relative humidity values of atmospheric air.
Źródło:
Inżynieria Rolnicza; 2005, R. 9, nr 1, 1; 15-22
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wilgotność względna i dni charakterystyczne w Lublinie w latach 1951-2015
Autorzy:
Krzyżewska, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/763134.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
relative humidity, Lublin, humid specifi c days
wilgotność względna, Lublin, dni charakterystyczne
Opis:
The paper analyzes the temporal variability of relative humidity in Lublin in the years 1951–2015. In addition, the frequency of occurrence of specifi c humid days, i.e. dry, moderate dry, humid and very humid days were characterized. The source material of the study was the values of relative humidity measured at the UMCS Meteorological Observatory located in the city center. Dry days (f ≤ 55%), moderate dry (56–70%), humid (71–85%) and very humid days (f ≥ 86%) are defi ned on the basis of the average daily values of relative humidity. For the selected characteristics, the statistical signifi cance of trends was tested by the Mann-Kendall test. The average value of relative humidity in Lublin in 1951–2015 was 77.9% and it ranged from 73.6% in 2005 to 83.3% in 1958. In the analyzed years, a signifi cant downward trend was observed. This drop is caused by rising air temperature and spatial development of the city. Humid days (average 150 days a year) and very humid days (average 119 days a year) have occurred with the highest frequency. Moderate dry and dry days were much less frequent – 80 and 16 days a year, respectively. The values determined for these characteristics were statistically signifi cant for dry and moderate dry days (positive trend) and for very humid days (negative trend).
W pracy przedstawiona została analiza zmienności czasowej wilgotności względnej w Lublinie w latach 1951-2015. Ponadto prześledzono dla wielolecia częstości występowania dni charakterystycznych pod względem wilgotności powietrza czyli dni z powietrzem suchym, umiarkowanie suchym, umiarkowanie wilgotnym i bardzo wilgotnym. Materiał źródłowy opracowania stanowiły terminowe wartości wilgotności względnej, której pomiary były wykonywane na stacji Obserwatorium Meteorologicznego UMCS, zlokalizowanej w centrum miasta. Na podstawie średnich dobowych wartości wilgotności względnej zdefiniowano dni suche (f≤55%), umiarkowanie suche (56-70%), umiarkowanie wilgotne (71-85%) i bardzo wilgotne (f≥86%). Dla wybranych charakterystyk zbadana została istotność statystyczna trendów testem Mann-Kendalla.Średnia wartość wilgotności względnej w Lublinie w latach 1951-2015 wyniosła 77,9% i zmieniała się od 73,6% w 2005 r. do 83,3% w 1958 r. W analizowanym wieloleciu zaobserwowano istotny statystycznie trend malejący.Najczęściej notowano dni wilgotne (średnio 150 dni w roku) oraz bardzo wilgotne (średnio 119 dni w roku). Dni umiarkowanie suchych i suchych występowały znacznie rzadziej – odpowiednio 80 i 16 dni w roku. Wyznaczone dla tych charakterystyk były istotne statystycznie w przypadku liczby dni z powietrzem suchym i umiarkowanie suchym (trend dodatni) oraz liczby dni z powietrzem bardzo wilgotnym (trend ujemny).
Źródło:
Annales Universitatis Mariae Curie-Sklodowska, sectio B – Geographia, Geologia, Mineralogia et Petrographia; 2017, 72, 2
0137-1983
Pojawia się w:
Annales Universitatis Mariae Curie-Sklodowska, sectio B – Geographia, Geologia, Mineralogia et Petrographia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Environment Conditions on Ultrasonic and Electrostatic Precipitation of Aerosols of Wood Flour
Autorzy:
Stepkina, Maria
Kudryashova, Olga
Antonnikova, Alexandra
Powiązania:
https://bibliotekanauki.pl/articles/177035.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
dispersive medium
relative humidity
temperature
ultrasonic radiation
electrostatic field
finely-dispersed aerosol particles
Opis:
The risk of human exposure to finely-dispersed aerosol particles being airborne indoors is determined by the size and the number concentration of particles, the intensity of an aerosol emission source, the air filtration and ventilation efficiency, etc. The emphasis in this article is on behaviour patterns of aerosol particles when exposed to ultrasonic and electrostatic fields in different conditions of air temperature and relative humidity. Wood flour having sizes of interest (characteristic particle diameter about 10 μm) is chosen as a model aerosol. The article considers a physical and mathematical model presenting the evolution of aerosol particles in external fields, taking into account the moisture content and the temperature of a dispersive medium. The efficiency of ultrasonic and electrostatic precipitation in different relative humidity and temperature conditions in an enclosed space was studied using optical measurement methods of particle size and concentration.
Źródło:
Archives of Acoustics; 2020, 45, 1; 29-34
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of effects of outdoor relative humidity of fan pad cooling effects in greenhouses
Autorzy:
Oz, H.
Atilgan, A.
Powiązania:
https://bibliotekanauki.pl/articles/61431.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
cooling efficiency
determination
outdoor relative humidity
fan pad
cooling effect
greenhouse
Isparta province
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2015, III/2
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł

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