1. The document discusses a proposed cogeneration power plant in Daszyna Commune, Poland that would use an Organic Rankine Cycle to generate electricity from burning straw. 2. The power plant aims to produce green energy, reduce air pollution by eliminating CO2 emissions, and serve as a model for other local communities to replicate. 3. Key components of the plant would include a boiler, turbine, generator, heat exchangers, circulation pump, and control system. The plant is expected to generate 2 MW of power and increase energy independence for the local area.

1. Polish-German Cooperation
Presentation of Local Cogeneration Power Plant
RENREN Monitoring Group
& Steering Committee Joint Meeting
Łódź, 7.06.2011

2. BMU programme for promoting investments in the
reduction of environmental pollution abroad
Aims of the funding:
• Direct, measurable impact on the environment, including, in particular to
reduce air and water pollutants, or
• Presenting economic activities to improve the climate, in particular, reducing
carbon dioxide emissions and replace fossil fuels by renewable energy
sources.
The intensity of co-financing: 30% -75% of eligible costs
Multipliereffect, ie. The possibility of relocation of activities in a project designed
for areas with a simila rsituation and the economic side of the project.
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3. Primary Objectives:
1. Production of green energy – reduce
air pollution by reducing CO2.
2. Solution model, which is an incentive
for similar actions to other local
communities.
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4. DetailObjectives:
1. Increase energy independence of Daszyna Commune.
2. Cooperation with the heating plant in a situation of
greater demand for energy (in winter).
3. Take advantage of surplus of straw from local
agriculture.
4. Social-economic development of Daszyna Commune.
5. Promotion of Daszyna.
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5. Reduction of CO2
Coal Straw
Heat of Combustion 23.8 MJ/kg 14.7 MJ/kg
Pure Carbon content 97% 46%
Ash content < 2% 6%
Ammount of CO2 produced
4.07 kgCO2 6.8 kgCO2
to obtain 100 MJ of energy
Equivalent emmision of CO2 – 1.96 x 106 kg/year
For biomass solution – 0 kg/year
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6. Old heating plant
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7. Cost estimation
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8. ORGANIC RANKINE CYCLE
?
400 kWel
TURBINE ~
?
BOILER
Fan cooler
2 MWt Pump
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9. ORGANIC RANKINE CYCLE
?
400 kWel
TURBINE ~
Generator
BOILER
Fan Cooler
2 MWt Pump
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10. Setup of power plant
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11. Boiler
The boiler must be carefully chosen in
order to satisfy the plant requirements:
1. Reliability
2. Stability of parameters
3. High efficiency
4. Flexibility
5. High temperature of water
6. Dealing with straw burning problems

12. What is Rankine cycle??
Critical point
3
Qin
W turbine
2
1 4
Qout
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13. Principle of RC
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14. Principle of RC
Critical point
50 bar
Water saturated steam
3
Wet steam
0,06 bar
2
1 4
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15. Parameters of ORC
FUEL STRAW
BRIQUETTE
PRESSURE [bar] 2.68
INLET TEMPERATURE [K] 348.15
OUTLET TEMPERATURE[K] 403.15
MASS STREAM [kg/s] 8.68
POWER [kW] 2000
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16. Principle of ORC
Critical point
50 bar
3
Critical point
3’
2’ 0,06 bar
2 1’ 4’
1 4
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17. Turbine
1. The turbine is an integral element in the cycle
2. It converts the energy of the working fluid into mechanical energy
3. The turbine must accurately match the given conditions of the
localization
4. Examples of turbine stages:

18. The conditions that a turbine should satisfy
1.In case of the commercial projects -
high reliability (one hour off is very
expensive)
2.High efficiency – it results in greater
electrical
3.Simple design – results in lower cost of
the turbine

19. The concept for Daszyna
1.Working fluid with high critical
temperature (e. g. R141b)
2.A few stage impulse turbine with
rotational speed of 3000 rev/min
(cheaper but less efficient solution)
3.A few stage reaction turbine (more
efficient but also more expensive
solution)

20. Power generator
1. Power generator – three phase asynchronous
induction motor
2. The turbine and the power generator combine to
the turbogenerator

21. Other components
1. Heat exchangers – must be reliable
and well sealed (to prevent any leaks
and mixing)
2. Circulation pump – the best would be a
hermetic one
3. Control system – power plant must be
fully automated
4. Other elements – must withstand the
conditions of the ORC cycle

22. The advantages
1. The concept can be applied in other country
regions due to availability of the straw.
2. The cycle is flexible and scalable.
3. The idea is innovative as it would be the first of
this kind in Poland.