%0 Journal Article %1 vanPutten20072566 %A van Putten, H. %A Colonna, P. %D 2007 %J Applied Thermal Engineering %K automotive engineering steam %N 14–15 %P 2566 - 2582 %R http://dx.doi.org/10.1016/j.applthermaleng.2007.01.035 %T Dynamic modeling of steam power cycles: Part \II\ – Simulation of a small simple Rankine cycle system %U http://www.sciencedirect.com/science/article/pii/S135943110700066X %V 27 %X This paper presents the second part of the work concerning the dynamic simulation of small steam cycle plants for power generation. The work is part of the preliminary study for a 600 kWe biomass fired steam power plant for which the complete open-loop, lumped parameter dynamic model of the steam cycle has been developed using the SimECS software described in Part I of this work. For these low-power plants, a dynamic simulation tool is especially useful because these systems must be designed to operate in transient mode for most of the time. The plant model presented here consists of the following components: feedwater pump, economizer, evaporator, superheater, impulse turbine, electrical generator and condenser. The primary heat source is modeled as a flue gas flow and no combustion models are incorporated yet to model the furnace. A description of the various components forming the complete steam cycle is given to illustrate the capabilities and modularity of the developed modeling technique. The model is first validated quantitatively against steady-state values obtained using a well known, reliable steady-state process modeling software. Subsequently, the dynamic validation is presented. Results can only be discussed based on the qualitative assessment of the observed trends because measurements are not available, being the plant in the preliminary design phase. The qualitative validation is based on four dynamic simulations involving three small step disturbances of different magnitude imposed on the pump rotational speed and on the flue gas mass flow and a single large ramp disturbance on the flue gas mass flow.

@article{vanPutten20072566, abstract = {This paper presents the second part of the work concerning the dynamic simulation of small steam cycle plants for power generation. The work is part of the preliminary study for a 600 kWe biomass fired steam power plant for which the complete open-loop, lumped parameter dynamic model of the steam cycle has been developed using the SimECS software described in Part I of this work. For these low-power plants, a dynamic simulation tool is especially useful because these systems must be designed to operate in transient mode for most of the time. The plant model presented here consists of the following components: feedwater pump, economizer, evaporator, superheater, impulse turbine, electrical generator and condenser. The primary heat source is modeled as a flue gas flow and no combustion models are incorporated yet to model the furnace. A description of the various components forming the complete steam cycle is given to illustrate the capabilities and modularity of the developed modeling technique. The model is first validated quantitatively against steady-state values obtained using a well known, reliable steady-state process modeling software. Subsequently, the dynamic validation is presented. Results can only be discussed based on the qualitative assessment of the observed trends because measurements are not available, being the plant in the preliminary design phase. The qualitative validation is based on four dynamic simulations involving three small step disturbances of different magnitude imposed on the pump rotational speed and on the flue gas mass flow and a single large ramp disturbance on the flue gas mass flow. }, added-at = {2016-05-05T16:28:23.000+0200}, author = {van Putten, H. and Colonna, P.}, biburl = {https://www.bibsonomy.org/bibtex/2a930364f82001a6ad286072bc99cc6b0/ttjh6}, doi = {http://dx.doi.org/10.1016/j.applthermaleng.2007.01.035}, interhash = {c900825e41b53193a0f35ad01fe88050}, intrahash = {a930364f82001a6ad286072bc99cc6b0}, issn = {1359-4311}, journal = {Applied Thermal Engineering }, keywords = {automotive engineering steam}, number = {14–15}, pages = {2566 - 2582}, timestamp = {2016-05-05T16:28:23.000+0200}, title = {Dynamic modeling of steam power cycles: Part \{II\} – Simulation of a small simple Rankine cycle system }, url = {http://www.sciencedirect.com/science/article/pii/S135943110700066X}, volume = 27, year = 2007 }