Changes of the thermodynamic parameters in failure conditions of the micro-CHP cycle

• Autorzy: Matysko R. , Mikielewicz J. , Ihnatowicz E.

Identyfikatory

DOI

10.2478/aoter-2014-0003

• Języki publikacji: EN

Abstrakty

EN

The paper presents the calculations for the failure conditions of the ORC (organic Rankine cycle) cycle in the electrical power system. It analyses the possible reasons of breakdown, such as the electrical power loss or the automatic safety valve failure. The micro-CHP (combined heat and power) system should have maintenance-free configuration, which means that the user does not have to be acquainted with all the details of the ORC system operation. However, the system should always be equipped with the safety control systems allowing for the immediate turn off of the ORC cycle in case of any failure. In case of emergency, the control system should take over the safety tasks and protect the micro-CHP system from damaging. Although, the control systems are able to respond quickly to the CHP system equipped with the inertial systems, the negative effects of failure are unavoidable and always remain for some time. Moreover, the paper presents the results of calculations determining the inertia for the micro-CHP system of the circulating ORC pump, heat removal pump (cooling condenser) and the heat supply pump in failure conditions.

Słowa kluczowe

EN

micro-CHP system; transient model; failure states; multifuel boiler system; heating system

PL

układ mikro CHP; model przejściowy; stan awaryjny; kocioł; system ogrzewania

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2014
• Tom: Vol. 35, no. 1
• Strony: 43--59
• Opis fizyczny: Bibliogr. 11 poz., il.

Twórcy

autor

Matysko R.

• The Szewalski Institute of Fluid Flow Machinery of Polish Academy of the Sciences, Fiszera 14, 80-231 Gdańsk, Poland

autor

Mikielewicz J.

• The Szewalski Institute of Fluid Flow Machinery of Polish Academy of the Sciences, Fiszera 14, 80-231 Gdańsk, Poland

autor

Ihnatowicz E.

• The Szewalski Institute of Fluid Flow Machinery of Polish Academy of the Sciences, Fiszera 14, 80-231 Gdańsk, Poland

Bibliografia

• [1] Colonna P., Putten H.: Dynamic modeling of steam power cycles. Part I. Modeling paradigm and validation. Appl. Therm. Eng. 27(2007), 467–480.
• [2] Ortiz F.J., Gutiérrez: Modeling of fire-tube boilers. Appl. Therm. Eng. 31(2011), 3463–3478.
• [3] Matysko R.: The Transient model of ideal refrigeration cycle with control cystem for heat receiving and intermediary cycle in cooling chamber. In: HEAT 2011, Proc. 6th Int. Conf. on Transport Phenomena in Multiphase Systems, June 28 – July 2, Ryn 2011.
• [4] Mikielewicz J.: Modelling of thermal-hydraulic processes. Maszyny Przepływowe, Vol. 17, Ossolineum, Wrocław 1995 (in Polish).
• [5] Quoilin S., Aumann R., Grill A., Schuster A., Lemort V., Spliethoff H.: Dynamic modeling and optimal control strategy of waste heat recovery. Appl. Energ. 88(2011), 2183–2190.
• [6] Manente G., Toffolo A., Lazzaretto A.,Paci M.: An organic Rankine cycle off-design model for the search of the optimal control strategy. Energy 58(2013), 97–106.
• [7] He Y-L, Mei D-H., Tao W-Q., Yang W-W., Liu H-L.: Simulation of the parabolic trough solar energy generation system with organic Rankine cycle. Appl. Energ. 97(2012), 630–641.
• [8] Wei D., Lu X., Lu Z., Gu J.: Dynamic modeling and simulation of an organic Rankine cycle (ORC) system for waste heat recovery. Appl. Therm. Eng. 28(2008), 10, 1216–1224.
• [9] Zhang J.a, Zhang W., Hou G., Fang F.: Dynamic modeling and multivariable control of organic Rankine cycles in waste heat utilizing processes. Comput. Math. Appl. 64(2012), 5, 908–921.
• [10] Matysko R., Mikielewicz J.: Transient model of the combined microcogeneration and heat pump cycle. In: Proc. 1st Int. Cong. on Thermodynamics, Poznań 4-7 September, 2011.
• [11] Pei G., Li J., Li Y., Wang D., Ji J.: Construction and dynamic test of a smallscale organic Rankine cycle. Energy 36(2011), 3215-3223.