This paper deals with short term hourly scheduling (one week ahead) of cogeneration plants (CHP) inside large industrial sites, where the heat demand is very high and crucial for industrial processes. This optimization aims to find the CHP operation points that maximize the profits from heat and electricity selling. The electricity price has to be forecasted as it depends on the day-ahead market outcomes, whereas the heat price depends on the long term contract between the utilities owner and the industrial site counterparts. These operation points must complain technical and economical constraints; in particular, the cogeneration indexes imposed by actual Italian law must be achieved to have important benefits, such as green certificates purchase exemption and priority dispatching. A Mathlab application has been developed for a generic typical configuration of CHP, consisting of both combined cycles gas turbines and backpressure units. The optimization procedure has been applied to a case study consisting of two combined cycles gas turbine and two backpressure units. The relationships that allow to evaluate the units net heat rate have been calculated by experimental measurements and manufacturer data.
|Titolo:||OPTIMAL POWER PRODUCTION SHORT TERM SCHEDULING IN AN INDUSTRIAL COGENERATION SYSTEM|
|Data di pubblicazione:||2010|
|Appare nelle tipologie:||1.1 Articolo in rivista|