The article discusses the prospects for using various types of renewable energy sources for continental climate conditions (on the example of the Zabaikalye Territory). It is determined that the most efficient is the use of solar energy for the heating needs. The method for optimizing the composition of the equipment in combined heating systems, which allows quick determination of the optimal amount of solar collectors without reusability of complex astronomical calculations needed to determine the exact position of the Sun in the required time. Application of the developed methodology in conducting energy audit of heating supply objects can reasonably represent the technical and economic advice on the implementation of renewable energy sources.
The article determines application potential of solar energy in conditions of sharply continental climate. It presents an energy-efficient solar energy recovery scheme in district heating systems, allowing to reduce capital costs and maintenance charges and to increase degree of substitution of conventional sources of heat. Versatility of systems using this method results in its multi-zone application: From a cottage-type house to heating of industrial premises and green house complexes. The main principle of the suggested method is in connection of a solar collector via heated medium to an air conduit, which is connected with heated space and antifreeze, circulating in-line: Reservoir-accumulator-solar collector. A method of heat transfer enhancement using dimple-type intensifiers is suggested. The article determines enhancement efficiency via calculation of daily heat-absorption of a flat air collector with and without dimple intensifiers, as well as economic effect from introducing of the suggested method. According to calculations, the adoption of the suggested heating system and heat transfer enhancement on the surface of the collector connecting to it, may give a perceptible economic effect.
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