Influence of working fluid evaporation temperature in the near-critical point region on the effectiveness of ORC power plant operation

• Autorzy: Nowak W. , Borsukiewicz-Gozdur A. , Wiśniewski S.
• Języki publikacji: EN

Abstrakty

EN

In the paper presented are definitions of specific indicators of power which characterize the operation of the organic Rankine cycle (ORC) plant. These quantities have been presented as function of evaporation temperature for selected working fluids of ORC installation. In the paper presented also is the procedure for selection of working fluid with the view of obtaining maximum power. In the procedure of selection of working fluid the mentioned above indicators are of primary importance. In order to obtain maximum power there ought to be selected such working fluids which evaporate close to critical conditions. The value of this indicator increases when evaporation enthalpy decreases and it is known that the latent heat of evaporation decreases with temperature and reaches a value of zero at the critical point.

Słowa kluczowe

EN

binary power plants; near-critical region; ORC; working fluid

PL

elektrociepłownie binarne; obszar około-krytyczny; ORC; płyny obróbkowe

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2012
• Tom: Vol. 33, no. 3
• Strony: 77--87
• Opis fizyczny: Bibliogr. 3 poz.,

Twórcy

autor

Nowak W.

autor

Borsukiewicz-Gozdur A.

autor

Wiśniewski S.

• West Pomeranian University of Technology, Department of Heat Engineering, al. Piastów 19, 70-310 Szczecin, Poland,

Bibliografia

• [1] BORSUKIEWICZ-GOZDUR A.: Efficiency of Geothermal Power Plant with Organic Working Fluid. PhD thesis, Szczecin University of Technology, 2008 (in Polish).
• [2] NOWAK W., STACHEL A.A., BORSUKIEWICZ-GOZDUR A.: Comparison of the effectiveness of geothermal energy utilisation in the case of a power plant with organic Rankine cycle and a hybrid binary plant. Archives of Thermodynamics 29(2008), 4, 133-140.
• [3] BORSUKIEWICZ-GOZDUR A.: Dual-fluid-hybrid power plant co-powered by low-temperature geothermal water. Geothermics 39(2010), 170-176.