Yıl 2020, Cilt 8 , Sayı 1, Sayfalar 437 - 452 2020-01-31

Exergoeconomic Analysis of an Industrial Cogeneration Cooling System Powered By Natural Gas Fueled Diesel Engine
Doğal Gaz Yakıtı Kullanan Dizel Motorlu Endüstriyel Kojenerasyon Soğutma Sisteminin Eksergoekonomik Analizi

Ceyhun YILMAZ [1]


This study presents the exergy and exergoeconomic analysis of a natural gas-powered diesel cogeneration system. The cogeneration system is designed for a sports complex with 1000 m2 closed area in Afyonkarahisar city. Natural gas is used as the fuel in the cogeneration system of the sports complex, which includes a swimming pool and ice rink. The natural gas diesel engine is used as the primary energy source for the cogeneration system. In the system, the electricity required for the cooling cycle is produced from the natural gas diesel engine. At the same time, the engine exhaust gases are used in the process of heat generation for swimming pool water heating. Finally, the waste heat discharged from the system is used to produce electricity in the thermoelectric power unit. The cogeneration system was modeled thermodynamically by the EES program on a computer and then economically analyzed by using the Aspen Plus program.  The operation of the cogeneration system is described in detail, and a methodology based on exergoeconomic relations and SPECO method is provided to allocate cost flows through subcomponents of the system. The results were compared by using thermodynamic and exergoeconomic performance parameters.  The exergetic efficiency of the cogeneration system is found to be 28.74%, which indicates that 71.26% of the total exergy input to the system, mainly by natural gas, is destroyed. As a result of the economic analysis of the cogeneration system, the investment cost was calculated as 62,000 $. The exergetic cost rate and the specific unit exergetic cost of the power produced in the cogeneration system are calculated to be 0.75 $/h and 10.93 $/GJ (0.039 $/kWh), respectively. The specific unit exergetic cost of the energy produced in the cogeneration system for cooling the ice rink and heating the swimming pool in the sports complex are calculated to be 6.152 $/GJ (0.022 $/kWh) and 4.221 $/GJ (0.0152 $ /kWh), respectively.

Bu çalışmada doğal gaz beslemeli bir dizel kojenrasyon sisteminin ekserji ve exergoeconomic analiz sunulmaktadır. Bu kojenerasyon sistemi uygulaması Afyonkarahisar'da 1000 m2 kapalı alana sahip bir spor kompleksi için planlanmaktadır. Yüzme havuzu ve buz pisti içeren bu spor kompleksinin kojenerasyon sisteminde yakıt olarak doğal gaz kullanılmaktadır. Kojenerasyon sistemine enerji saylamak için doğal gazlı dizel motoru kullanılmıştır. Sistemde soğutma çevrimi için gerekli elektrik doğalgaz motorundan üretilmektedir. Aynı zamanda egzoz gazları yüzme havuzu su ısıtması için proses ısı üretiminde kullanılmaktadır. Son olarak, çevrimlerden atılan atık ısılar termoelektrik devreye gönderilerek elektrik üretilmektedir. Kojenerasyon sistemi bilgisayar ortamında EES programı ile termodinamik olarak modellenmiştir ve daha sonra Aspen Plus programı kullanılarak ekonomik analizi yapılmıştır. Kojenerasyon sistemi detaylı bir şekilde tanıtılmış ve özgül ekserji maliyetlendirme (SPECO) yöntemi temelinde, sistem bileşenlerinin maliyet akışlarını ifade eden ilişkiler geliştirilmiştir. Elde edilen sonuçlar termodinamik ve eksergoekonomik performans parametreleri kullanılarak karşılaştırılmıştır. Kojenerasyon sisteminin ekserji verimi %28.74 olarak bulunmuştur, bu da sisteme doğalgazla giren ekserjinin %71.26’sının yıkıma uğradığını göstermektedir. Kojenerasyon sisteminin ekonomik analizi sonucunda yatırım maliyeti 62,000 $ olarak hesaplanmıştır. Doğalgaz motorlu kojenerasyon sisteminde üretilen elektriğin ekserjiye bağlı maliyet oranı ve birim ekserji maliyeti sırasıyla, 0.75 $/h ve 10.93 $/GJ (0.039 $/kWh) olarak hesaplanmıştır. Buz pistinin soğutulması ve spor kompleksi içindeki yüzme havuzunun ısıtılması için kojenerasyon sisteminde üretilen enerjinin maliyeti, sırasıyla 6.152 $/GJ (0.022 $/kWh) ve 4.221 $/GJ (0.0152 $/kWh) olarak hesaplanmıştır.

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Birincil Dil en
Konular Mühendislik
Bölüm Makaleler
Yazarlar

Orcid: 0000-0002-8827-692X
Yazar: Ceyhun YILMAZ (Sorumlu Yazar)
Kurum: AFYON KOCATEPE UNIVERSITY
Ülke: Turkey


Tarihler

Yayımlanma Tarihi : 31 Ocak 2020

Bibtex @araştırma makalesi { dubited619923, journal = {Düzce Üniversitesi Bilim ve Teknoloji Dergisi}, issn = {}, eissn = {2148-2446}, address = {}, publisher = {Düzce Üniversitesi}, year = {2020}, volume = {8}, pages = {437 - 452}, doi = {10.29130/dubited.619923}, title = {Exergoeconomic Analysis of an Industrial Cogeneration Cooling System Powered By Natural Gas Fueled Diesel Engine}, key = {cite}, author = {Yılmaz, Ceyhun} }
APA Yılmaz, C . (2020). Exergoeconomic Analysis of an Industrial Cogeneration Cooling System Powered By Natural Gas Fueled Diesel Engine . Düzce Üniversitesi Bilim ve Teknoloji Dergisi , 8 (1) , 437-452 . DOI: 10.29130/dubited.619923
MLA Yılmaz, C . "Exergoeconomic Analysis of an Industrial Cogeneration Cooling System Powered By Natural Gas Fueled Diesel Engine" . Düzce Üniversitesi Bilim ve Teknoloji Dergisi 8 (2020 ): 437-452 <https://dergipark.org.tr/tr/pub/dubited/issue/49725/619923>
Chicago Yılmaz, C . "Exergoeconomic Analysis of an Industrial Cogeneration Cooling System Powered By Natural Gas Fueled Diesel Engine". Düzce Üniversitesi Bilim ve Teknoloji Dergisi 8 (2020 ): 437-452
RIS TY - JOUR T1 - Exergoeconomic Analysis of an Industrial Cogeneration Cooling System Powered By Natural Gas Fueled Diesel Engine AU - Ceyhun Yılmaz Y1 - 2020 PY - 2020 N1 - doi: 10.29130/dubited.619923 DO - 10.29130/dubited.619923 T2 - Düzce Üniversitesi Bilim ve Teknoloji Dergisi JF - Journal JO - JOR SP - 437 EP - 452 VL - 8 IS - 1 SN - -2148-2446 M3 - doi: 10.29130/dubited.619923 UR - https://doi.org/10.29130/dubited.619923 Y2 - 2019 ER -
EndNote %0 Düzce Üniversitesi Bilim ve Teknoloji Dergisi Exergoeconomic Analysis of an Industrial Cogeneration Cooling System Powered By Natural Gas Fueled Diesel Engine %A Ceyhun Yılmaz %T Exergoeconomic Analysis of an Industrial Cogeneration Cooling System Powered By Natural Gas Fueled Diesel Engine %D 2020 %J Düzce Üniversitesi Bilim ve Teknoloji Dergisi %P -2148-2446 %V 8 %N 1 %R doi: 10.29130/dubited.619923 %U 10.29130/dubited.619923
ISNAD Yılmaz, Ceyhun . "Exergoeconomic Analysis of an Industrial Cogeneration Cooling System Powered By Natural Gas Fueled Diesel Engine". Düzce Üniversitesi Bilim ve Teknoloji Dergisi 8 / 1 (Ocak 2020): 437-452 . https://doi.org/10.29130/dubited.619923
AMA Yılmaz C . Exergoeconomic Analysis of an Industrial Cogeneration Cooling System Powered By Natural Gas Fueled Diesel Engine. DÜBİTED. 2020; 8(1): 437-452.
Vancouver Yılmaz C . Exergoeconomic Analysis of an Industrial Cogeneration Cooling System Powered By Natural Gas Fueled Diesel Engine. Düzce Üniversitesi Bilim ve Teknoloji Dergisi. 2020; 8(1): 437-452.