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Heat Transfer Research
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ISSN Imprimer: 1064-2285
ISSN En ligne: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v34.i1-2.40
6 pages

Solar-Radiative Heating of Different Objects in the Regions with Severe Climatic Conditions

B. Puntsagdulam
Urals State Technical University, Ekaterinburg, Russia; Academy of Sciences of Mongolia
B. V. Berg
Ural State Technical University − UPI, Ekaterinburg, Russia
V. A. Mikula
Urals State Technical University, Ekaterinburg, Russia; Academy of Sciences of Mongolia

RÉSUMÉ

A number of experiments were carried out in the Middle Urals and the permafrost zones in Mongolia. The temperature regimes of a house with a solar air heater were studied. In winter, the air temperature indoors is up to +20°C in the daytime, while the temperature outside is –1°C. The economy of energy resources in winter was near 10–15% and in spring and autumn was equal to 35%. The solar heating of a greenhouse gives economy of 60–80% if it is used for nine months per year, which allows one to get two crops during one year even under permanent frost conditions. In testing a solar concentrator, the heat receiver temperature was obtained to be 340°C. A flat solar collector (S = 1–2 m) can heat 300 liters of cold (8°C) water up to 30–60°C in 24 h in the Middle Urals climate in the spring–summer–autumn period.


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