Economic effectiveness evaluation of the free piston Stirling engine-based micro-combined heat and power unit in relation to classical systems

• Autorzy: Uchman Wojciech , Remiorz Leszek , Kotowicz Janusz

Identyfikatory

DOI

10.24425/ather.2019.128290

• Języki publikacji: EN

Abstrakty

EN

In this article, a comparison of economic effectiveness of various heating systems dedicated to residential applications is presented: a natural gas-fueled micro-cogeneration (micro-combined heat and power – µCHP) unit based on a free-piston Stirling engine that generates additional electric energy; and three so-called classical heating systems based on: gas boiler, coal boiler, and a heat pump. Calculation includes covering the demand for electricity, which is purchased from the grid or produced in residential system. The presented analyses are partially based on an experimental investigation. The measurements of the heat pump system as well as those of the energy (electricity and heat) demand profiles in the analyzed building were conducted for a single-family house. The measurements of the µCHP unit were made using a laboratory stand prepared for simulating a variable heat demand. The overall efficiency of the µCHP was in the range of 88.6– 92.4%. The amounts of the produced/consumed energy (electricity, heat, and chemical energy of fuel) were determined. The consumption and the generation of electricity were settled on a daily basis. Operational costs of the heat pump system or coal boiler based heating system are lower comparing to the micro-cogeneration, however no support system for natural gas-based µCHP system is included.

Słowa kluczowe

EN

heating systems; cost analysis; stirling engine; micro-cogeneration

PL

system ciepłowniczy; analiza kosztów; mikrokogeneracja

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2019
• Tom: Vol. 40, no 1
• Strony: 71--83
• Opis fizyczny: Bibliogr. 9 poz., rys., tab., wykr., wz.

Twórcy

autor

Uchman Wojciech

• Silesian University of Technology, Institute of Power Engineering and Turbomachinery, Konarskiego 18, 44-100 Gliwice, Poland

autor

Remiorz Leszek

• Silesian University of Technology, Institute of Power Engineering and Turbomachinery, Konarskiego 18, 44-100 Gliwice, Poland

autor

Kotowicz Janusz

• Silesian University of Technology, Institute of Power Engineering and Turbomachinery, Konarskiego 18, 44-100 Gliwice, Poland

Bibliografia

• [1] Murugan S., Horak B.: A review of micro combined heat and power systems for residential applications. Renew. Sust. Energ. Rev. 64(2016), 144–162.
• [2] Chmielewski A., Gumiński R., Mączak J., Radkowski S., Szulim P.: Aspects of balanced development of RES and distributed micro-cogeneration use in Poland: Case study of a µCHP with Stirling engine. Renew. Sust. Energ. Rev. 60(20160), 930–952.
• [3] Harrison J.: Stirling Engine Systems for Small and Micro Combined Heat and Power (CHP) Applications, Small and Micro Combined Heat and Power (CHP) Ssystems. Woodhead Publishing Ltd., Cambridge 2011.
• [4] Walker G., Senft J.R.: Free Piston Stirling Engines. Springer-Verlag, Heidelberg 1985.
• [5] Kotowicz J., Remiorz L., Uchman W.: Transient states characterisitics of free piston Stirling engine operating within µCHP unit. Rynek Energii 131(2017), 4, 41–46 (in Polish).
• [6] www.microgen-engine.com (accessed 12 Feb. 2017).
• [7] Kotowicz J., Uchman W., Janusz-Szymańska K.: Research stand of microcogeneration unit based on Stirling engine. Rynek Energii 127(2016), 6, 70–75 (in Polish).
• [8] Remiorz L., Hanuszkiewicz-Drapała M.: Cumulated energy consumption in a heat pump system using a U-tube ground heat exchanger in a moderate climate. Energ. Buildings 96(2015), 118–127.
• [9] Skorek-Osikowska A., Remiorz L., Bartela Ł., Kotowicz J.: Potential for the use of micro-cogeneration prosumer systems based on the Stirling engine with an example in the Polish market. Energy 133(2017), 46–61.

Uwagi

EN

This scientific work was funded by the National Science Centre within the framework of research project no. 2014/13/B/ST8/01869.

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).