Of course, with heavy use of geothermal field in winter, not the design stage of buildings and structures should not forget about converting their winter solar radiation into heat (photothermal conversion). It can be either passive (using passive solar building elements - glazed facades, conservatories) and active (with the use of additional technical equipment). The advantage of passive systems is that their operation does not require any additional equipment. Use the sunlight that falls inside the building (structure) through the windows or transparent surfaces. This system should be designed to account for the use of received energy to other premises. Here are the most appropriate capital at home, allowing for a short time to accumulate excess energy. The principle here is also the view and control of the heating system.
The passive system should be unified with the building of a harmonious whole, it easiest to achieve in the new buildings. Old buildings can be reconstructed (to make glazed extensions, porches, etc.). However, it is necessary to take into account the risk of overheating of the building in the summer, which you need to install the appropriate ventilation systems, heat storage building structures.
Passive energy gain of the system depends on the method of use of the building - for example, additional glazing of loggias cost-effective only when it is not heated in the winter.
Common to both heat sources is that as the thermal capacity of the solar pond brine and geothermal source  can be used in the same areas of different (Table 5).
Table 5 - Areas of use of the heat of the sun and the salt pond geothermal source
Sphere of application
coolant, ? C
25 - 50
22 - 50
45 - 95
35 - 50
50 - 85
Growing fruit and vegetables
Food processing industry
20 - 60
35 - 90
35 - 90
5 - 45
5 - 45
Production of concrete blocks
Extraction of chemical elements
Wood products industry
75 - 85
75 - 85
50 - 80
80 - 105
40 - 90
The binary power plant
As can be seen from the above, solar radiation and geothermal heat can be a source of energy for the combined energy supply systems in Russia, providing round the important areas of life and the production of energy-building.
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4th World Geothermal Congress WGC-2005 / / Thermal. 2006. Number three. C 78 - 80.
5, son of John A. Heat Stroiizdat, Moscow, 1982. 240.
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7 Dyad’kin JD, JM Parijskij Extraction and use of the Earth’s heat. LA: 1997.
8 Achilov BM Zhuraev TD, Shadyev O.Kh. Solar desalination plants and refrigerators. Tashkent: Fan, 1976. 104.
9 Kotlyakov VM Snow and ice in the nature of the Earth. Moscow: Nauka, 1986. 160.
10 Dobrohotov VI, Cooks OA The use of geothermal energy resources in Russia / / Thermal. 2003. Number 1. C 2 - 11.
Author: Osadchiy Gennady Borisovich, engineer, author of 140 inventions of the USSR.
Phone home. (3812) 60-50-84, mob. 8 (962) 0434819
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