Case studies
Reijola heating plant
Reijola heating plant is the latest heating facility in Pyhäselkä using wood energy.
There is no combustion air blower in the heating plant. The air flows into the boiler due to the low pressure created by the conbustion gas aspirator. The aspirator is controlled by a sensor measuring the temperature of the gas. As a result, the aspirator manages the feeding screw, the grate and ash removal.
Location:
Vanhavaltatie 11, 80330 REIJOLA.
Contact person:
Mr. Hannu Suihko,
municipal engineer
Phone: +358 13 2681 260
Mobile: +358 500 678 970
Mr. Ossi Volotinen, +358 50 - 549 2123
Owner:
Municipality of Pyhäselkä
Hammaslahdentie 2,
82200 HAMMASLAHTI
+358 13 – 268 111
Other centres owned by the municipality:
- Suhmura (260 kW, 200 MWh, pellets)
- Rekivaara (160 kW, 120 MWh, pellets)
- Municipal office (260 kW, 300 MWh, pellets)
- Niittylahti (500 kW, 430 MWh, pellets)
- Hammaslahti (1600 kW, 5000 MWh, chips)
Costs:
Costs of investment in total 335 000 €, of which boilers 200 000 €.
Other:
The municipality of Pyhäselkä is a part of the Joensuu regional union. Altogether, there are 7550 inhabitans in the two population centres, Reijola and the parish village Hammaslahti.
General information
| Annual heat production: |
400 MWh (first 5 months) |
| Boiler: |
skewed mechanical grate (Osby PB2 - Osby Parca AB; 750 kW; 2005)
|
| Heating: |
20 000 m2 |
| Length of heating network: |
400m |
| Fuel: |
wood pellets and light oil |
| Fuel consumption: |
17.1.2006 100 000 kg pellets |
| Year ofintroduction: |
January 2006 |
Fuel information
Fuel 1: Pellets
| Acquisition: |
Vapo oy
|
| Consumption: |
17.1.2006 -> 100 000 kg |
Fuel 2: light oil
1 MW boiler used from May till August.
Fuel storage:
2 x 40 m3
Technical information
| Boiler 1: |
skewed mechanical grate (Osby PB2 - Osby Parca AB; 750 kW; 2005)
|
| Oil boiler: |
1 MW |
| Efficiency: |
0.9 pellet boiler, cannot be used if heat load less 75 kW |
| Conveyors: |
two screw conveyors |
| Controlling: |
Automated, GSM alarm
|
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