Organic Vapour Flow

Organic Vapour Flow

Organic vapor flows for ORC applications

The Compressible fluid dynamics for Renewable Energy Applications laboratory (CREA Lab) operates in the field of Non-Ideal Compressible Fluid Dynamics (NICFD), with a special focus on applications for renewable energy systems. It supports theoretical, experimental and numerical investigations of compressible-fluid flows. The laboratory gathers personnel and competencies from three Departments of Politecnico di Milano: the Department of Aerospace Science and Technology, the Energy Department and the Department of Electronics, Computer Sciences and Bioengineering. The resulting multidisciplinary team is capable of tackling the complex physical problems related to NICFD and yearns to be an authoritative reference for both industrial and academic partners.

  • Experimental study of supersonic flows of organic fluids  (siloxanes) in dense-gas configurations

  • Experimental assessment of real gas model by combination of independent pressure, temperature and velocity measurements

  • Experimental study of the gasdynamics of mixtures of organic fluids

Different expansion ratio and different inlet thermodynamic conditions

Dense Gas Effects Can Be Tested

Detailed analysis by pressure taps and Schlieren on a nozzle;

Comparison with CFD

Selected References

  • Automatic detection of oblique shocks and simple waves in schlieren images of two-dimensional supersonic steady flowsCammi, G., Spinelli, A., Cozzi, F., Guardone, A. Measurement: Journal of the International Measurement Confederation, 2021, 168, 108260

  • Accuracy assessment of the Non-Ideal Computational Fluid Dynamics model for siloxane MDM from the open-source SU2 suite”, Gori, G., Zocca, M., Cammi, G., …Congedo, P.M., Guardone, A. European Journal of Mechanics, B/Fluids, 2020, 79, pp. 109-120

  • “Experimental observation of oblique shock waves in steady non-ideal flows”, Zocca, M., Guardone, A., Cammi, G., Cozzi, F., Spinelli, A. Experiments in Fluids, 2019, 60(6), 101

  • “Experimental observation and thermodynamic modeling of non-ideal expanding flows of siloxane MDM vapor for ORC applications” Spinelli, A., Cammi, G., Conti, C.C., …Dossena, V., Guardone, A. Energy, 2019, 168, pp. 285-294

  • “Thermal stability of hexamethyldisiloxane and octamethyltrisiloxane”, Keulen, L., Gallarini, S., Landolina, C., …Lietti, L., Guardone, A. Energy, 2018, 165, pp. 868-876

  • “Bubble-Point Measurements and Modeling of Binary Mixtures of Linear Siloxanes”, Keulen, L., Mansfield, E., Bell, I.H., Spinelli, A., Guardone, A. Journal of Chemical and Engineering Data, 2018, 63(9), pp. 3315-3330

  • “Experimental evidence of non-ideal compressible effects in expanding flow of a high molecular complexity vapor”,Spinelli, A., Cammi, G., Gallarini, S., …Dossena, V., Guardone, A. Experiments in Fluids, 2018, 59(8), 126

  • “Influence of a recessed step at the throat section of a supersonic nozzle” ,Zocca, M., Spinelli, A., Cozzi, F., Guardone, A. Aeronautical Journal, 2018, 122(1251), pp. 715-732

  • “Preliminary design of a supercritical CO2 wind tunnel”, Re, B., Rurale, A., Spinelli, A., Guardone, A. Journal of Physics: Conference Series, 2017, 821(1), 01 2027