Local energy resources in the integrated system of energy production and use
2010
Upitis, A., Latvia Univ. of Agriculture, Jelgava (Latvia) | Zagorska, V., Latvia Univ. of Agriculture, Jelgava (Latvia) | Kristapsons, M., Latvia Univ. of Agriculture, Jelgava (Latvia) | Jesko, Z., Latvia Univ. of Agriculture, Jelgava (Latvia)
Households are the most heat energy consuming sector. The biggest part takes heat energy consumption for household heating. In the research energy supply system of the energy efficient house for 5 people family with floor area 130 square m was analyzed. Energy supply system is provided with solar energy collector, gas type furnace system, hot water accumulation system, divided canalization system (toilet wastewater and wastewater from washing machines), air ventilation system with heat recovery equipment, greenhouse (indoor garden) as essential element of the building where bioprocesses and effective wastage utilization are realized. The energy consumption of the ''passive'' house due to heat insulation and tightness enormously decreases. There are many researches and experiments about possibilities of the use of local renewable energy sources such as solar, wind and biomass, but possibilities of the use of energy recovered from waste matter resources (water, air, food) from domestic activities is not still researched appropriately, therefore this kind of energy source is used only partially. In integrated energy supply system it is possible to cover considerable part of energy from total heat energy consumption recovered from waste matter, to optimize variable seasonal demand and availability of heat energy, to minimize electric energy consumption.
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