Size optimization of a biomass-fired cogeneration plant CHP/CCHP (Combined heat and power/Combined heat, cooling and power) based on Organic Rankine Cycle for a district network in Spain
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Date
04/08/2015Estado
info:eu-repo/semantics/publishedVersionMetadata
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. This paper presents a methodology to optimize the size (electric power) of a cogeneration plant based on
a biomass-fired Organic Rankine Cycle and connected to an existing district heating network, maximizing
profitability. First, a model to determine the hourly thermal energy demand profile of a location
in Spain has been derived, from open access meteorological data included in Spanish building regulations.
Partial load model of an organic Rankine plant has also been obtained to increase the operation
hours. These tools have been applied to two locations in Spain with different climatic severities, calculating
the optimal size of the plant. The business model does not include subsidies. Calculations show
that for population between 10,000 and 20,000 inhabitants the size of the plant ranges from 2 to 9 MWe
and the internal rate of return ranges from 6% to 18%. The coverage of the thermal energy demand ranges
from 40% to 80%. Regarding the trigeneration mode, it is concluded that cooling is only worth in locations
with high summer severity and in full load operation mode, being the optimal size of the plant smaller in
trigeneration mode than in cogeneration.
Size optimization of a biomass-fired cogeneration plant CHP/CCHP (Combined heat and power/Combined heat, cooling and power) based on Organic Rankine Cycle for a district network in Spain
Tipo de Actividad
Artículos en revistasISSN
0360-5442Palabras Clave
.Cogeneration ORC Biomass District heating and cooling