Funding entity ENCE
ENCE, the former Nacional Cellulose Enterprise, has a combined cycle power plant operational in Huelva. The combined cycle operates in principle in cogenerative mode, with and without post-combustion, exchanging steam at different pressure levels with the Cellulose factory from ENCE.
In this study we have developed several models for the heat recovery steam generator (HRSG) on the one hand, and the whole combined heat and power (CHP) scheme on the other hand, operating with and without post-combustion.
In the first place we proceeded to performe a detailed analysis from the HRSG in the different operating conditions aimed to filter the available documentation. Later we proceeded to calibrate the models with available design and operating information.
The models were first used to conduct an exergy analysis aimed to identify the points with grater improvement potential.
Later the calibrated models were used to conduct parametric studies on the effect of different operational and design variables on the CHP performaces, with the aim to quantify the improvement potential for several O&M strategies and design modifications of interest for ENCE/CENER.
The developed models are steady state and design point for most of the components, without fully incorporating the part load caracterization.
CENER-1
