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    Wyświetlanie 1-4 z 4
    Tytuł:
    Analyzing temperature changes in the ground massif with a horizontal heat exchanger in the course of the heating season
    Autorzy:
    Adamovsky, R.
    Neuberger, P.
    Sed'ova, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/62442.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    temperature change
    ground massif
    horizontal heat exchanger
    heating season
    heat pump
    ground source heat pump
    heat transfer
    energy potential
    ground temperature
    temperature distribution
    Opis:
    The article is devoted to temperature changes in the ground massif with the horizontal heat exchanger as an energy source for a heat pump. The article was aimed at analyzing temperature changes in the ground massif with the horizontal heat exchanger at the beginning, in the course of and at the end of the heating season. Another aim was to analyze temperature differences in the area of the horizontal exchanger and the reference lot. The heat flow utilized in the evaporator of heat pump was extracted from the ground exchanger (nominal output at the condenser was 10.5 kW). Temperatures of the ground massif with the horizontal heat exchanger were measured in its plane in depths of 0.75 m, 0.5 m and 0.25 m. The temperature inside the ground massif on the reference lot and ambient parameters were measured as well. It is obvious that the difference of energetic potentials inside the ground massif with the heat exchanger and on the reference lot is insignificant at the beginning of the heating season. During the heating season, the difference of ground massif energetic potentials increases; at the end it is constant. The difference of temperatures in horizontal planes was not significant at the beginning of the heating season; however, it gradually increased. Maximum differences were detected in the area of the heat exchanger. In higher strata, the difference between temperatures decreases. During a major part of the heating season, temperatures at pipes of the ground exchanger were negative. This fact affected amounts of heat extracted from the ground massif.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2010, 11
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temperature changes in heat pump horizontal ground source
    Autorzy:
    Adamovsky, R.
    Neuberger, P.
    Sed'ova, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/60337.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    temperature change
    heat pump
    ground massif
    horizontal heat exchanger
    heat potential
    soil
    thermal potential
    heating period
    ground temperature
    temperature distribution
    heat transfer
    energy conservation
    Opis:
    The paper deals with assessment of thermal fields and temperature changes in ground massif with horizontal heat exchanger used as a heat source for a heat pump. Temperatures in the zone of the horizontal ground exchanger are compared with temperatures in a reference land. Changes of heat potential of the soil during the heating period are also assessed. Possibilities of recovery of thermal potential of the ground massif when utilizing vertical and horizontal exchangers are analyzed in the opening part of the paper. The results of the first verification indicated that average temperatures in the horizontal planes of the ground massif did not differ considerably with distance from the exchanger tube. Differences in average temperatures in reference and experimental lands confirmed sufficient heat potential of the ground massif even at the peak of the heating period. The differences in average temperatures reached up to 6.51 K in the end of the heating period while at the beginning of the heating period, the differences in average temperatures dropped to 1.35 K. The differences between maximum and minimum temperatures in the zone of the ground exchanger reached up to 1.9 K at the peak of the heating period and rose to 3.9 K at the beginning and end of the heating period. The first results of our measurements indicate the necessity of accumulation of thermal energy in the soil massif in the summer period like in case of the vertical exchangers.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2009, 07
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimental research on thermal conditions in intermittently heated basement
    Autorzy:
    Gryc, A.
    Was, K.
    Radon, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/61060.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    thermal condition
    basement
    ground
    intermittent heating
    air temperature
    temperature measurement
    building
    room
    indoor thermal condition
    vicinity
    temperature condition
    Opis:
    The article presents the results of air temperature measurements inside a basement, outside it and in the ground adjacent to the building. The results and their analysis reveal that indoor thermal conditions develop differently in rooms with earth-contact structures. Intermittent heating exerts an important influence on the shaping of temperature conditions in a basement and its vicinity.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2011, 12
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of trend changes in degree-day values of heating and cooling: broiler breeding case
    Autorzy:
    Yucel, A.
    Atilgan, A.
    Erdem, N.
    Oz, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/101664.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    broiler
    linear regression analysis
    spearman rank correlation test
    temperature
    trend analysis
    Opis:
    An ideal broiler house should be designed to minimize the effects of weather changes and to keep indoor conditions at the comfort temperature of the animals. In this case, this should be done with minimum cost and possible lowest operating costs. Degree-day methods are used in order to have knowledge of the energy need of any structure. With this method, the measured values or meteorological data can be used to give information about the heating and cooling energy quantities of structures. Depending on the climate change in recent years, the changes need to be examined that have taken place in order to provide optimum comfort in animal barn. Isparta province and districts were selected as the study area. The longterm average daily temperature values are used from meteorological stations of the selected region. The heating and cooling degree day values were calculated for selected balance temperatures in broiler breeding. Linear Regression Analysis and Spearman Rank Correlation Test were conducted to determine the changes of these values due to climate change. In conclusion, it was determined that there were statistically significant trends at 5% significance level in Egirdir (21°C), Isparta (31-29-25 and 23°C), Kasimlar (18°C), Senirkent (31-29-25-23 and 21°C), Sutculer (all selected balance temperature values) and Yalvac (31-29-25-23 and 21°C) in terms of heating degree-day values, and in Atabey (29-25-23-21 and 18°C), Barla (25-23 and 21°C), Isparta (23-21 and 18°C), Senirkent (29- 25-23-21 and 18°C), Sutculer (29-25-23-21 and 18°C), Sarkikaraagac (25-23-21 and 18°C), Uluborlu (25-23-21 and 18°C) and Yalvac (25-23-21 and 18°C) in terms of cooling degree-day values. As a result, it has been concluded that more energy consumption will be a concern for heating and cooling of the broiler house that will be built in the province of Isparta.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2017, II/2; 645-660
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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