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Score - Sustainable Construction in Rural and Fragile Areas for Energy efficiency

Guidelines for Integrated territorial Planning:
Geothermic

Guidelines for integrated territorial planning – Heat pump

“Smart house” is energetically provided with renewable energy sources. Solar energy is exploited also with greater solar collector’s installation for water preparation that heats facilities and other water requirements. Water is at lower temperatures in reservoir heated with heat pump, at peak time and by increased use with district wood biomass heating. So as an additional secondary heating system we use heat pump type water-water. Brand of the heat pump is Termotechnik model VV 13/15 E1. As a heat source is used underground water trough pumping it within the evaporator of the heat pump using submersible pump. In the evaporator underground water transmits heat and cooled water for proximately 3 to 4 °C

returns back. The heat pump achieves very high level of efficiency. Before purchasing and installation is necessary to check the availability of underground water and the temperature of the water. Temperature of the underground water can not be lower then 7 °C

(in our case the temperature of underground water is 14 °C), required is minimum flow of 0, 2 m³/h for 1 kW of heat power (in our case, the flow is 3, 4 m³/h). Due to the higher heating number are recommended low-temperature heating systems in our case the heating is in walls and floor.

Next to the heating is also carried out passive cooling system of the facility. For cooling we have a system by which the cold source (ground water) is pumped trough an intermediate heat exchanger, which cools water for cooling facilities. Cooling of facilities is carried out with help of floor and wall piping system. Such system is effectively reduced, because we can not allowed temperature water in piping system to go below + 18 ° C to avoid condensation of floor and wall surface. For calm cooling trough walls and floors are available two passive cooling stations PA SIV 6 R and PA SIV 10 R, which prevents the cooling water to drop temperature below the dew point.

Heat pump has a simple control management TERMOTRONIC 3000:

Indication for the Bio-construction Action Plan

Possible criteria for MED bio-housing quality certificate

 

 

Case studies

−       Bistra hiša - Smart house (Martjanci, Slovenia)

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