Title:
Performaces Analisys Based on Experimental Campaign of a Micro CHP Plant with Microgas Turbine Supplied by Wood Chips
Author(s):
Spadi, A., Riccio, G., Chiaramonti, D., Martelli, F.
Document(s):
Paper
Abstract:
Once the installation, the commissioning and the preliminary tests have been completed, the Bio_MGT plant was finally started up successfully and it has been running for some thousands of operation hours. The Bio_MGT plant is a micro CHP plant based on a commercial Micro Gas Turbine (MGT, 100 kW) modified to make it suitable for an externally fired cycle. The system is characterized by a dual combustion configuration and it supplies electric and thermal power exploiting, as primary energy, woody biomass chips without pre-treatment. En effect, a significant share of the total energy input (more than 60%) comes from solid biomass that feeds a biomass furnace and the thermal energy is transferred to working fluid (MGT compressed air) through an high temperature heat exchanger; the remaining primary energy is provided by natural gas internal combustion. In this case the plant works on “hybrid” mode, however the plant can run also on “full green” (without natural gas contribution) mode and this configuration has been investigated as well. The Bio_MGT plant was designed as prototype plant and it was equipped with several measurements instruments devices so that the main thermodynamic values of each section of the plant can be monitored and analyzed. This paper reports the more interesting data collected along several long run tests (one year of plant monitoring) summarizing the performance obtained up to now, for both configuration mode: “hybrid” mode and “full green” mode. Finally, the experimental results have been compared with numerical results obtained by an in house developed code. The code was designed to develop the system and, in the last period, after a wide field data collection, the code has been tuned to match the numerical results with the experimental. From now on the code will able to calculate, with high reliability, the reachable performances of system by changing some of main plant control parameters, so that to drive the next develop steps of the Bio_MGT system.
Keywords:
combined heat and power generation (CHP), microturbine, pilot plant, wood chips
Topic:
Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Combustion for small and medium scale applications
Event:
19th European Biomass Conference and Exhibition
Session:
VP2.1.2
Pages:
1193 - 1201
ISBN-13:
978-88-89407-55-4
ISBN-10:
88-89407-55-7
Paper DOI:
10.5071/19thEUBCE2011-VP2.1.2
Price:
FREE
