Heating and DHW Equipment
The biomass boiler is located in the thermal installations room of the demonstration bioclimatic house, situated at the Sotavento Experimental Wind Farm. The equipment uses pellets as biofuel, which are loaded via pneumatic transport from a silo with a capacity of 2,500 kg located in the house’s storage area. The nominal thermal power of the equipment is 20 kW.
The boiler’s energy contribution to the heating and DHW system is carried out through an 800-liter stratified buffer tank. In addition to the biomass boiler, a geothermal heat pump is connected to this tank, capable of providing energy in parallel, operating on the upper and lower parts of the accumulator respectively. From this tank, hot water is pumped and returned for underfloor heating. Furthermore, it incorporates an internal coil-type exchanger for DHW production.
Monitored Parameters
The parameters stored and monitored for this equipment are:
- Fluid temperature at the boiler inlet and outlet
- Buffer tank temperatures at five levels
- Circulating flow rate
- Instantaneous power transmitted
- Thermal energy transmitted
Technical Characteristics
| Make and Model | OKPFEN PELLEMATIC PE20 |
|---|---|
| Nominal heat output | 20 kW |
| Total width | 1,130 mm |
| Boiler width | 700 mm |
| Boiler height | 1,090 mm |
| Boiler depth | 814 mm |
| Flow/return connection diameter | 1″ |
| Flue pipe diameter | 150 mm |
| Weight | 250 kg |
| Electrical connection | 230 V 50 Hz |
| Efficiency | 92.6% |
| Partial load efficiency | 91.1% |
| Water content | 66 L |
| Combustion gas temperatures | 160 ºC |
Demonstration Application
Sotavento provides a visual and interactive demonstration application that allows users to view installation data in real time and perform multiple calculations and extrapolations.
The geothermal heat pump, like the biomass boiler, is located in the thermal installations room of the bioclimatic house at the Sotavento Experimental Wind Farm. The equipment has its refrigeration circuit, on the evaporator side, connected to a horizontal geothermal exchanger. This exchanger basically consists of 500 m of DN 32 mm polyethylene piping located under backfill material from the house’s own excavation, at an average depth of 2 m, which allows for the extraction of thermal energy from the ground to cover the house’s demands. The heat pump has a nominal heat output of 8.2 kW and a COP of 4.7 (COP for an average evaporator temperature of 0ºC and 35ºC in the condenser, excluding the electrical consumption of the circulating pumps). The heat pump works on demand on the lower part of an 800-liter stratified buffer tank.
Monitored Parameters
The parameters stored and monitored for this equipment are:
- Fluid temperature at the heat pump inlet and outlet, geothermal circuit
- Fluid temperature at the heat pump inlet and outlet, secondary circuit
- Buffer tank temperatures at five levels
- Circulating flow rate in the secondary circuit
- Instantaneous power transmitted
- Thermal energy transmitted
- Ground temperature in the geothermal exchanger at 32 points
- Reference temperature of undisturbed ground
Technical Characteristics
| Make and Model | OPTIHEAT 8es |
|---|---|
| Nominal heat output1 | 8.2 kW |
| COP1 | 4.7 |
| Nominal absorbed electrical power | 1.7 kW |
| Water flow in the evaporator (ΔT=3ºC) | 2.00 m3/h |
| Water flow in the condenser (ΔT=10ºC) | 0.71 m3/h |
| Pump width | 1,260 mm |
| Pump height | 700 mm |
| Pump depth | 530 mm |
| Refrigerant type/charge | 410A/2.1 kg |
| Max. absorbed electrical power | 5.4 kW |
| Max. absorbed electrical power including pumps | 5.9 kW |
| Electrical connection | 400-3 V 50 Hz |
1 Excluding the electrical consumption of the circulating pumps, and for an average evaporator temperature of 0ºC and 35ºC in the condenser.
Demonstration Application
Sotavento provides a visual and interactive demonstration application that allows users to view installation data in real time and perform multiple calculations and extrapolations.
The data from these circuits are monitored independently to allow for comparative analysis. The installation consists of a total of 22 polycrystalline silicon photovoltaic modules with an individual power of 123 Wp (Watts peak), resulting in a total installed power of 2,706 Wp.
The equipment is distributed as follows according to orientation:
| Installation | Orientation | No. of Panels | Wp | Inverter |
|---|---|---|---|---|
| East | 90º | 6 | 738 | Mastervolt Soladin 600 |
| South | 180º | 10 | 1,230 | Sunnyboy 1100 |
| West | 270º | 6 | 738 | Mastervolt Soladin 600 |
Monitored Parameters
- Instantaneous power of each photovoltaic subsystem (East, South, and West)
- Cumulative energy generated by each photovoltaic subsystem (East, South, and West)
- Voltage, current, and power on the DC side of each subsystem
- Voltage, current, active, and reactive power on the AC side of each subsystem
- Radiation and temperature of each subsystem
- Humidity and wind speed
Module Characteristics
| Make and Model | Photowatt PW6-123 |
|---|---|
| Nominal power | 123 W |
| Open circuit voltage | 21.9 V |
| Mpp voltage | 17.6 V |
| Short-circuit current | 7 A |
| Mpp current | 7.6 A |
Inverter Characteristics
| Make and Model | SMA Sunnyboy 1100 | Mastervolt Soladin 600 |
|---|---|---|
| DC INPUT | ||
| Maximum DC power | 1,210 W | 600 W |
| Max. DC voltage | 400 V | 155 V |
| Max. input current | 10 A | 4 A |
| AC OUTPUT | ||
| Nominal power | 1,000 W | 525 W |
| Maximum power | 1,100 W | 725 W |
| Output AC voltage | 220/240 V – 50 Hz | 195/253 V – 50 Hz |
| Max. output current | 5.6 A | 2.25 A |
| AC connection | Single-phase | Single-phase |
| Efficiency | 91.6 % | 91.0 % |
Demonstration Application
Sotavento provides a visual and interactive demonstration application that allows users to view installation data in real time and perform multiple calculations and extrapolations.
- Biomass Boiler
-
The biomass boiler is located in the thermal installations room of the demonstration bioclimatic house, situated at the Sotavento Experimental Wind Farm. The equipment uses pellets as biofuel, which are loaded via pneumatic transport from a silo with a capacity of 2,500 kg located in the house’s storage area. The nominal thermal power of the equipment is 20 kW.
The boiler’s energy contribution to the heating and DHW system is carried out through an 800-liter stratified buffer tank. In addition to the biomass boiler, a geothermal heat pump is connected to this tank, capable of providing energy in parallel, operating on the upper and lower parts of the accumulator respectively. From this tank, hot water is pumped and returned for underfloor heating. Furthermore, it incorporates an internal coil-type exchanger for DHW production.
Monitored Parameters
The parameters stored and monitored for this equipment are:
- Fluid temperature at the boiler inlet and outlet
- Buffer tank temperatures at five levels
- Circulating flow rate
- Instantaneous power transmitted
- Thermal energy transmitted
Technical Characteristics
Make and Model OKPFEN PELLEMATIC PE20 Nominal heat output 20 kW Total width 1,130 mm Boiler width 700 mm Boiler height 1,090 mm Boiler depth 814 mm Flow/return connection diameter 1″ Flue pipe diameter 150 mm Weight 250 kg Electrical connection 230 V 50 Hz Efficiency 92.6% Partial load efficiency 91.1% Water content 66 L Combustion gas temperatures 160 ºC Demonstration Application
Sotavento provides a visual and interactive demonstration application that allows users to view installation data in real time and perform multiple calculations and extrapolations.
- Geothermal Heat Pump
-
The geothermal heat pump, like the biomass boiler, is located in the thermal installations room of the bioclimatic house at the Sotavento Experimental Wind Farm. The equipment has its refrigeration circuit, on the evaporator side, connected to a horizontal geothermal exchanger. This exchanger basically consists of 500 m of DN 32 mm polyethylene piping located under backfill material from the house’s own excavation, at an average depth of 2 m, which allows for the extraction of thermal energy from the ground to cover the house’s demands. The heat pump has a nominal heat output of 8.2 kW and a COP of 4.7 (COP for an average evaporator temperature of 0ºC and 35ºC in the condenser, excluding the electrical consumption of the circulating pumps). The heat pump works on demand on the lower part of an 800-liter stratified buffer tank.
Monitored Parameters
The parameters stored and monitored for this equipment are:
- Fluid temperature at the heat pump inlet and outlet, geothermal circuit
- Fluid temperature at the heat pump inlet and outlet, secondary circuit
- Buffer tank temperatures at five levels
- Circulating flow rate in the secondary circuit
- Instantaneous power transmitted
- Thermal energy transmitted
- Ground temperature in the geothermal exchanger at 32 points
- Reference temperature of undisturbed ground
Technical Characteristics
Make and Model OPTIHEAT 8es Nominal heat output1 8.2 kW COP1 4.7 Nominal absorbed electrical power 1.7 kW Water flow in the evaporator (ΔT=3ºC) 2.00 m3/h Water flow in the condenser (ΔT=10ºC) 0.71 m3/h Pump width 1,260 mm Pump height 700 mm Pump depth 530 mm Refrigerant type/charge 410A/2.1 kg Max. absorbed electrical power 5.4 kW Max. absorbed electrical power including pumps 5.9 kW Electrical connection 400-3 V 50 Hz 1 Excluding the electrical consumption of the circulating pumps, and for an average evaporator temperature of 0ºC and 35ºC in the condenser.
Demonstration Application
Sotavento provides a visual and interactive demonstration application that allows users to view installation data in real time and perform multiple calculations and extrapolations.
The data from these circuits are monitored independently to allow for comparative analysis. The installation consists of a total of 22 polycrystalline silicon photovoltaic modules with an individual power of 123 Wp (Watts peak), resulting in a total installed power of 2,706 Wp.
The equipment is distributed as follows according to orientation:Installation Orientation No. of Panels Wp Inverter East 90º 6 738 Mastervolt Soladin 600 South 180º 10 1,230 Sunnyboy 1100 West 270º 6 738 Mastervolt Soladin 600 Monitored Parameters
- Instantaneous power of each photovoltaic subsystem (East, South, and West)
- Cumulative energy generated by each photovoltaic subsystem (East, South, and West)
- Voltage, current, and power on the DC side of each subsystem
- Voltage, current, active, and reactive power on the AC side of each subsystem
- Radiation and temperature of each subsystem
- Humidity and wind speed
Module Characteristics
Make and Model Photowatt PW6-123 Nominal power 123 W Open circuit voltage 21.9 V Mpp voltage 17.6 V Short-circuit current 7 A Mpp current 7.6 A Inverter Characteristics
Make and Model SMA Sunnyboy 1100 Mastervolt Soladin 600 DC INPUT Maximum DC power 1,210 W 600 W Max. DC voltage 400 V 155 V Max. input current 10 A 4 A AC OUTPUT Nominal power 1,000 W 525 W Maximum power 1,100 W 725 W Output AC voltage 220/240 V – 50 Hz 195/253 V – 50 Hz Max. output current 5.6 A 2.25 A AC connection Single-phase Single-phase Efficiency 91.6 % 91.0 % Demonstration Application
Sotavento provides a visual and interactive demonstration application that allows users to view installation data in real time and perform multiple calculations and extrapolations.
DATA ACCESS AND DOWNLOAD
The parameters of the Sotavento Wind Farm’s wind installations are stored in a database and integrated into a download application. This application allows organizations, companies, or universities with which Sotavento maintains collaboration agreements to access the necessary data for project development.
Complete list of parameters stored in the wind farm and bioclimatic house installations