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A method to determine primary energy savings of CHP plants considering plant-side and demand-side characteristics

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  • Pohl, Elmar
  • Diarra, David

Abstract

Cogeneration or combined heat and power (CHP) is considered as an important key technology towards efficient energy supply. While CHP is used in industrial systems for a long time, in domestic energy supply CHP technologies are penetrating recently. Domestic energy supply systems with CHP plants differ in plant-side and demand-side characteristics. The effects of feed-in of CHP generated electricity is analyzed in detail. In this paper we develop an assessment method for primary energy savings by means of a primary energetic comparison of a coupled supply system with a separated supply system. The plant-side power to heat ratio and the demand-side power to heat ratio are discussed as important parameters for primary energy savings. The method leads to a theoretical potential of primary energy savings, which only depends on plant-side characteristics. The technical potential of primary energy savings is the consequence of both, plant-side and demand-side, characteristics.

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  • Pohl, Elmar & Diarra, David, 2014. "A method to determine primary energy savings of CHP plants considering plant-side and demand-side characteristics," Applied Energy, Elsevier, vol. 113(C), pages 287-293.
    • Handle: RePEc:eee:appene:v:113:y:2014:i:c:p:287-293
    DOI: 10.1016/j.apenergy.2013.07.038
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    Cited by:

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    2. Beretta, Gian Paolo & Iora, Paolo & Ghoniem, Ahmed F., 2014. "Allocating resources and products in multi-hybrid multi-cogeneration: What fractions of heat and power are renewable in hybrid fossil-solar CHP?," Energy, Elsevier, vol. 78(C), pages 587-603.
    3. Noussan, Michel, 2018. "Performance based approach for electricity generation in smart grids," Applied Energy, Elsevier, vol. 220(C), pages 231-241.
    4. Sahoo, U. & Kumar, R. & Pant, P.C. & Chaudhury, R., 2015. "Scope and sustainability of hybrid solar–biomass power plant with cooling, desalination in polygeneration process in India," Renewable and Sustainable Energy Reviews, Elsevier, vol. 51(C), pages 304-316.
    5. Ummenhofer, C.D. & Heyer, G. & Roediger, T. & Olsen, J. & Page, J., 2017. "Improved system control logic for an MCHP system incorporating electric storage," Applied Energy, Elsevier, vol. 203(C), pages 737-751.
    6. Iora, Paolo & Beretta, Gian Paolo & Ghoniem, Ahmed F., 2019. "Exergy loss based allocation method for hybrid renewable-fossil power plants applied to an integrated solar combined cycle," Energy, Elsevier, vol. 173(C), pages 893-901.
    7. Jiménez-Espadafor Aguilar, Francisco & Quintero, R. Rodríguez & Trujillo, E. Carvajal & García, Miguel Torres, 2014. "Analysis of regulation methods of a combined heat and power plant based on gas turbines," Energy, Elsevier, vol. 72(C), pages 574-589.
    8. Ramadhani, Farah & Hussain, M.A. & Mokhlis, Hazlie & Fazly, Muhamad & Ali, Jarinah Mohd., 2019. "Evaluation of solid oxide fuel cell based polygeneration system in residential areas integrating with electric charging and hydrogen fueling stations for vehicles," Applied Energy, Elsevier, vol. 238(C), pages 1373-1388.
    9. Bracco, Stefano & Bianchi, Enrico & Bianco, Giovanni & Giacchino, Alessandro & Ramaglia, Alessandro & Delfino, Federico, 2022. "On the participation of small-scale high performance combined heat and power plants to the Italian ancillary services market within Virtually Aggregated Mixed Units," Energy, Elsevier, vol. 239(PE).

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