Energy and Exergy Analysis of Cogeration System with Biogas Engines

Nadezhda DOSEVA; Daniela CHAKYROVA

doi:https://doi.org/10.18186/jte.75021

Makale detayları

Energy and Exergy Analysis of Cogeration System with Biogas Engines

Yazarlar:

Nadezhda DOSEVA | Daniela CHAKYROVA

Yayıncı:

Yildiz Technical University

Dergi:

Journal of Thermal Engineering 2015 Vol.1 Issue 3, pp.391-401

Belge Tipi:

Makale

Yayın Tarihi:

2/2015

Belge Dili:

İngilizce

Document ID (Org No.):

2000506690

Sıklık:

İki Aylık

eISSN:

2148-7847

DOI:

https://doi.org/10.18186/jte.75021

Özet:

 

In this paper, an existing cogeneration system driven by biogas internal combustion engines (ICE) is a subject of an investigation by energy and exergy analyses. The system is installed in the Varna Wastewater Treatment Plant (Varna WWTP), Bulgaria and its purpose is to utilize the methane produced as a byproduct of the solids stabilization process at Varna WWTP. Otherwise, the produced methane would pollute the environment. The presented paperhas been organised in the following way: first, in order to define the basic thermodynamic parameters on the stations of the cogeneration system streams, the energy balance equations for each component of the system are formulated. Then, the rate of exergy destruction within the the kth system component is calculated using the exergy balance equations. Moreover, according to the methodology introduced in (The European Education Tool on Cogeneration System (EDUCOGEN), 2001), energy efficiency, power to heat ratio, energy saving ratio, energy efficiency used under the Public Utilities Regulatory Policy Act (PURPA efficiency) are defined for the cogeneration system. The same thermodynamic performance efficiency) are determined on exergy base. In addition to the thermodynamic performance assessment parameters of the cogeneration system, a detailed exergy analysis on the component level is performed. To our knowledge, there has been little discussion about exergy efficiency of ICE based cogeneration systems for use with biogas from wastewater treatment plants. To address this niche in the global research work, in this investigation is suggested detailed exergy analysis.

Makale detayları

Energy and Exergy Analysis of Cogeration System with Biogas Engines

Yazarlar: Nadezhda DOSEVA | Daniela CHAKYROVA

Yayıncı: Yildiz Technical University

Dergi: Journal of Thermal Engineering 2015 Vol.1 Issue 3, pp.391-401

Belge Tipi: Makale

Yayın Tarihi: 2/2015

Belge Dili: İngilizce

Document ID (Org No.): 2000506690

Sıklık: İki Aylık

eISSN: 2148-7847

DOI: https://doi.org/10.18186/jte.75021

Sayı

Yazarlar:

Nadezhda DOSEVA | Daniela CHAKYROVA

Yayıncı:

Yildiz Technical University

Dergi:

Journal of Thermal Engineering 2015 Vol.1 Issue 3, pp.391-401

Belge Tipi:

Makale

Yayın Tarihi:

2/2015

Belge Dili:

İngilizce

Document ID (Org No.):

2000506690

Sıklık:

İki Aylık

eISSN:

2148-7847

DOI:

https://doi.org/10.18186/jte.75021