Influence of heat recuperation in ORC power plant on efficiency of waste heat utilization

• Autorzy: Borsukiewicz-Gozdur A.
• Języki publikacji: EN

Abstrakty

EN

The present work is devoted to the problem of utilization of the waste heat contained in the exhaust gases having the temperature of 350[degrees]C. Conversion of the waste heat into electricity using a power plant working with organic fluid cycles is considered. Three Organic Rankine Cycle (ORC) power plant solutions are analysed and compared: a solution with the basic, single thermodynamic conversion cycle, one with internal heat recuperation and one with external heat recuperation. It results from the analysis that it is the proper choice of the working fluid evaporation temperature that fundamentally affects the maximum of the ORC plant output power. Application of the internal heat recuperation in the plant basic cycle results in the output power increase of approx. 5%. Addition of the external heat recuperation to the plant basic cycle, in the form of a secondary supercritical ORC power cycle can rise the output power by approx. 2%.

Słowa kluczowe

EN

heat recuperation; ORC; subcritical power plant; supercritical organic cycle

PL

nadkrytyczna siłownia organiczna; odzyskiwanie ciepła

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2010
• Tom: Vol. 31, no. 4
• Strony: 111--123
• Opis fizyczny: Bibliogr. 5 poz.,Rys., tab., wykr., wz

Twórcy

autor

Borsukiewicz-Gozdur A.

• West Pomeranian University of Technology, Department of Heat Engineering, al. Piastów 17, 70-310 Szczecin, Poland,

Bibliografia

• [1] DICKSON M.H., FANELLI M. (Eos): Geothermal Energy: Utilization and Technology. Earthscan with UNESCO, 2005.
• [2] DIPIPPO R.: Geothermal Power Plants Principles, Applications and Case Studies. Elsevier Advanced Technology, 2005.
• [3] BORSUKIEWICZ-GOZDUR A.: Efficiency of Geothermal Power Plant with Organic Working Fluid. PhD thesis, Szczecin University of Technology, 2008.
• [4] BORSUKIEWICZ-GOZDUR A., NOWAK W.: Desirable thermophysical properties of fluids in low-temperature Clausius-Rankine cycle. International Institute of Refrigeration, Refrigeration Science and Technology, Proc. of Thermophysical Properties and Transfer Processes of Refrigerants Conference, No.2005-3, Vicenza, 31.08-02.09.2005 (on CD).
• [5] MIKIELEWICZ D., MIKIELEWICZ J.: A new criterion for selection of working fluid for subcritical and supercritical micro CHP. Conference proceedings HPC'09 Heat Powered Cycles, Innovationszentrum Energie Technische Universität, Berlin, 7-9 September 2009.