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Wyszukujesz frazę "degree-hours" wg kryterium: Temat

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    Wyświetlanie 1-2 z 2
    Tytuł:
    Investigation of heating and cooling degree-hour values in greenhouses with different color cover materials: the case of lettuce plant
    Autorzy:
    Atılgan, Atılgan
    Yücel, Ali
    Aktaş, Hakan
    Tunçbilek, Funda
    Powiązania:
    https://bibliotekanauki.pl/articles/101255.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    cover material
    degree-hours
    greenhouse
    heating
    cooling
    Opis:
    In this study, it is aimed to determine the effect of greenhouse cover material of different color on the number of heating (HDHN) and cooling degree hours (CDHN) and heating (HDH) and cooling degree hours (CDH) of the lettuce plant. For this purpose, the study was carried out in the CtrlG (Control transparent PE greenhouse), RedG (Red PE greenhouse) and BlueG (Blue PE greenhouse). The study was completed in 2018 at ISUBU research and application farm. The temperature values measured in the three greenhouses with the same dimensions were the material of the study. HDH, CDH, HDHNs, and CDHNs were calculated by examining the measured temperature values and suggested temperature values for the lettuce plant. By using these values, it was tried to determine suitable cover material during the growing period of the lettuce plant. It has been concluded that the use of colored covering material is more suitable in terms of energy needs in almost all growing periods of lettuce plants. By comparing the values calculated for RedG and BlueG based on CtrlG, the coefficients of variation were calculated to determine which data series or series were more similar to each other. According to the coefficients of variation, the average values of HDH, CDH, HDHNs and CDHNs of the control greenhouse and other colored covered greenhouses ranged between 1,365 and 14,102%. Based on the CtrlG, BlueG was more homogeneous (1,365-8,364%), whereas RedG was less homogeneous (3,798-14,102%). It can be said that the use of colored covering material in greenhouses for lettuce plants will be more advantageous in terms of energy requirement.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2019, III/1; 235-252
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The investigation of relationship of heating and cooling degree hour calculations for Southeastern Anatolia Region with altitude, latitude and longitude
    Autorzy:
    Yucel, A.
    Atilgan, A.
    Oz, H.
    Saltuk, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/101504.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    altitude
    cooling
    degree-hours
    heating
    latitude
    longitude
    Opis:
    Degree-day values can be calculated using climatic data. Thus, seasonal, monthly, daily and hourly energy requirements for heating and cooling in buildings can be calculated. The effect of outside ambient temperature can be determined by means of the degree-day method in determining the basic temperature values in buildings. The altitude and latitude affect significantly the temperature distribution in the Earth. Thus, the latitude and altitude values are required to determine the degree hour values. This study was taken in 9 provinces located in the Southeastern Anatolia Region (SAR). The annual outdoor dry-bulb thermometer temperatures for a long period of nine provinces in the SAR were obtained to determine heating and cooling degree hour values according to the six different base temperatures. According to the suggested six different base temperature values, the cumulative long-term annual heating degree-hour (HDH) value was 50862 in total for Gaziantep province. The lowest cumulative long-term annual heating degree-hour value took place in Sanliurfa province as 39638. Also, the highest total cooling degree-hour (CDH) value took place in Sanliurfa province as 10886 degree-hour value and the lowest value took place in Sirnak province as 3909. It was determined that there was not an exact linear or monotonous relationship between HDH and CDH values and altitude, latitude and longitude values. However, although it was seen that the relationship of CDH values with the altitude was not a formal linear or monotonous relationship, it was determined that CDH values decreased linearly together with the increasing altitude values when the values were examined.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2016, III/1; 673-683
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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