District heating enables to recover heat produced simultaneously with electricity in combined heat and power generation plants, which would be wasted and dissipated into environment, in order to supply residential and commercial heating requirements; the distribution of this energy is realized close to production site, minimizing losses associated with transportion. The European-wide Authorities identify in urban district heating systems a great opportunity for rationalizing energy use and a very interesting way to decrease harmful emissions, in order to reduce local pollution as well as greenhouse gas emissions. In this paper the district heating plant built in Norcia (Perugia, Italy) is described: it is located in the area of Sibillini, a mountain range that divides anche and Umbria regions, in the centre of Italy. The system is powered by a natural gas cogeneration plant characterized by three engines for an overall electric power of 1050 kW and a thermal power of 1500 kW. The plant supplies heat to about forty industrial and civil users Objective of this study is to correlate the data recordered by monitoring emissions of cogeneration system following several load profiles, in order to optimize simultaneously system management and the trend in emissions into atmosphere. Different emissions are processed through a flue gas analyzer, installed permanently at the poer generator, able to monitor real-time (range of programmable recording from 250ms) concentration of CO, NOx, CO2 and the temperature of the flue gases. Data recording has enabled to compare current situation with the pre-existing one, before plant's realization, in terms of air quality.
Analysis of Emissions into Atmosphere of the Cogeneration and District Heating Plant in Norcia (Italy)
DESIDERI, UMBERTO;
2009-01-01
Abstract
District heating enables to recover heat produced simultaneously with electricity in combined heat and power generation plants, which would be wasted and dissipated into environment, in order to supply residential and commercial heating requirements; the distribution of this energy is realized close to production site, minimizing losses associated with transportion. The European-wide Authorities identify in urban district heating systems a great opportunity for rationalizing energy use and a very interesting way to decrease harmful emissions, in order to reduce local pollution as well as greenhouse gas emissions. In this paper the district heating plant built in Norcia (Perugia, Italy) is described: it is located in the area of Sibillini, a mountain range that divides anche and Umbria regions, in the centre of Italy. The system is powered by a natural gas cogeneration plant characterized by three engines for an overall electric power of 1050 kW and a thermal power of 1500 kW. The plant supplies heat to about forty industrial and civil users Objective of this study is to correlate the data recordered by monitoring emissions of cogeneration system following several load profiles, in order to optimize simultaneously system management and the trend in emissions into atmosphere. Different emissions are processed through a flue gas analyzer, installed permanently at the poer generator, able to monitor real-time (range of programmable recording from 250ms) concentration of CO, NOx, CO2 and the temperature of the flue gases. Data recording has enabled to compare current situation with the pre-existing one, before plant's realization, in terms of air quality.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
