The Rankine cycle is named after its inventor, the scottish physicist William Rankine (1820-1872), one of the fathers of thermodynamics.
The concept behind the Organic Rankine Cycle is simple, but is better explained through a schematic.
A heat source - such as the flames of aboiler, hot flue gases or any other comparable heat source - heats, by way of a heat exchanger (2) a special working fluid that is the real secret behind LT ORC technology. This fluid, which is 100% biodegradable and non-toxic, starts boiling and expands dramatically even when exposed to a temperature lower than that of water and becomes a dry, highly pressurized gas which moves a turbine (3), producing mechanical power (Wturbine ) that, in our plants, is converted by a direct drive alternator into electric power, which is used on site or sent to the power grid.
On exiting the turbine the working fluid goes through to a condensating heat exchanger (4) where it gives off its excess heat, condenses into a liquid form again and goes to a storage tank (1), ready to be pumped back to the secondary exchanger, thus closing the cycle.
The excess low-temperature heat given off in the condensating exchanger (Qout) can used for ambiental heating purposes, or to preheat fuel, or again to reduce the water content of biomass prior to burning, thus increasing its heating value.
(Rankine cycle schematic from Wikimedia Commons © Andrew Ainsworth, English Wikipedia. Licensed under GNU FDL)
Advantages of our LT-ORC Turbogenerators
There are several strong points that should motivate a client in choosing a Zuccato Energia LT ORC turbogenerator over our competitors :
Furthermore, our turbogenerators: