Title:
Analysis of Biomass ORC Plant Connected to a District Heating Network
Author(s):
Strzalka, R., Ulbrich, R., Eicker, U.
Document(s):
Paper
Abstract:
Today, biomass is most efficiently used in decentralized cogeneration plants. Through the use of the ORC (Organic Rankine Cycle) technology, power plants below 10 MWth thermal output can be operated at lower temperature and pressure than conventional steam plants, thus requiring less operation and maintenance effort. Due to high efficiency of part load operation such plants are an interesting alternative for municipal and commercial heat supply. However, the technology is rather new and practical experience is required to access the real performance and operational reliability.The energy supply system of the urban area Scharnhauser Park is a practical example for the utilization of the ORC technology. An urban quarter with a living space of 130000 m2 and 48000 m2 office space is heated by a cogeneration plant connected to a district heating network with a length of 13.5 km. The plant is fired mainly by park waste wood and forest residues are burned additionally. The cogeneration system is equipped with a 6.3 MWth biomass furnace and covers the main part of the heat demands of the quarter. The installation has a pilot project character and can be used for investigations of wood-fired cogeneration systems.The paper contains a review about the practical experience and investigation results that have been gathered since begin of the plant operation. A wood chip boiler with a cogeneration module, connected to a district heating network is being completely monitored from the fuel delivery to heat distribution. More than 60 process parameters have been continuously archived by a data acquisition system. The analysis aims to estimate the efficiency and the ecological parameters of the combination of the ORC module and biomass furnace by consideration of the requirements of a district heating network.
Keywords:
cogeneration, biomass combustion, combustion efficiency
Topic:
Thermochemical conversion - Combustion for small scale applications
Subtopic:
Combustion for small scale applications
Event:
18th European Biomass Conference and Exhibition
Session:
VP2.5.25
Pages:
1347 - 1351
ISBN-13:
978-88-89407-56-1
ISBN-10:
88-89407-56-5
Paper DOI:
10.5071/18thEUBCE2010-VP2.5.25
Price:
FREE
