Sustainability Metrics of a Small Scale Turbojet Engine

Ekici, Selçuk; Şöhret, Yasin; Coban, Kahraman; Altuntaş, Önder; Karakoç, T. Hikmet

doi:10.1515/tjj-2016-0036

Cited by 16 publications

(8 citation statements)

References 34 publications

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“…Energy, exergy and exergoeconomic analyses with sustainability and environmental analyses have been a hot topic in aviation for different aircraft engines (Balli and Hepbasli, 2014;Aydin et al 2015;Turan and Aydin, 2016;Şöhret et al 2016;Ekici et al 2018;Baklacioglu et al 2018;Söğüt, 2018;Sahu et al 2018;Aygun and Turan, 2020;Yuksel et al 2020). The analyses results of these studies are utilizable as a guide for the design and improvement efforts of the aircraft engines.…”

Section: Literature Survey On Exergy Based Sustainability Assessment Of Energy Systemsmentioning

confidence: 99%

Exergy Based Sustainability Assessment of an Orc Integrated Waste Heat Recovery System for Marine Vessels

Konur¹,

Saatçıoğlu²,

Çolpan

2021

Dokuz Eylül Üniversitesi Denizcilik Fakültesi Dergisi

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This paper introduces the basics of exergy-based sustainability assessment and the framework that should be shaped within the first stage. The sustainability assessment framework leads to sustainability indicators that are used to assist policymakers and decision-making processes. The literature review shows that the energy systems are suited to sustainability assessment with exergy based assessment tools and indicators from an environmental point of view. In this study, an exergy based sustainability assessment is carried out by using the exergy analyses results of an ORC (organic Rankine cycle) integrated waste heat recovery system on a 1,221 TEU container ship. The exergy analysis results are used to derive comparable and quantified exergetic sustainability indicators that indicate the sustainability level and further improvement potentials with the utilization of the proposed waste heat recovery system design. The assessment results show that the minimum waste exergy ratio is obtained with the value of 0.106 when R1234ze(Z) is used and the evaporating pressure is 3 MPa. R1234ze(Z) and R245fa working fluids show good environmental performance for the proposed system design. The maximum exergetic sustainability index value is obtained with the value of 8.435 when R1234ze(Z) is used and the evaporating pressure is 3 MPa.

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Section: Literature Survey On Exergy Based Sustainability Assessment Of Energy Systemsmentioning

confidence: 99%

Exergy Based Sustainability Assessment of an Orc Integrated Waste Heat Recovery System for Marine Vessels

Konur¹,

Saatçıoğlu²,

Çolpan

2021

Dokuz Eylül Üniversitesi Denizcilik Fakültesi Dergisi

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“…Ekici et al [10] studied the sustainability indicators of a small scale turbojet engine. Exergetic performance of the turbojet engine was investigated to obtain exergy efficiency, waste exergy ratio, environmental effect factor, exergy destruction factor and exergetic sustainability index.…”

Section: Ct Yücermentioning

confidence: 99%

Ekserji̇ Anali̇zi̇ Yöntemi̇ Kullanilarak Bi̇r Gaz Türbi̇nli̇ Jet Motorunun Performans Araştirmasi

Yücer

2019

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

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Bu çalışmada bir gaz türbinli jet motorunun üç farklı devir sayısı için performans analizi yapılmıştır. Çalışmanın amacı kompresör, yanma odası ve gaz türbini için teorik ve ölçüm sonucu elde edilen verilerin termodinamik süreçler dikkate alınarak incelenmesi ve jet motoru bileşenlerinin enerji ve ekserji dengelerinin elde edilmesidir. Ele alınan jet motorunun devir sayısı 120.000 d/d değerine kadar artırılabilmektedir. Ölçülen veriler basınç, sıcaklık, hava akımının debisi, yakıtın debisi ve itki değerleridir. Bu makalede jet motoruna ait ölçülen verilere ve analitik sonuçlara yer verilmiştir. Birinci kısmi yük için kompresör çıkış sıcaklığı en düşük olduğu için gaz türbininden elde edilen iş miktarı da en düşük değerdedir. Yanma odasının ekserji yıkım miktarları üç farklı yük değerinde de en yüksek değerlerdedir. Jet motorunun çalışma yükü artırıldıkça yakıttan daha fazla ekserji elde edilmektedir. Buna rağmen ekserji verimi ise çalışma yükü arttıkça azalmaktadır. Ekserji verimleri sırasıyla %7.1, %6 ve %5.5 olarak bulunmuştur.

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“…The kerosene base fuels are Jet fuels. The properties which are important to fuel to give better performance can be maintained or enhanced by adding additives (Ekici et al, 2018(Ekici et al, , 2020S öhret et al, 2018). Generally, gas turbine-powered aircraft uses kerosene-based Jet fuels and piston powered aircraft uses gasoline where some diesel engines can use Jet fuel for improving the performance of an aircraft (Balli et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Influence of high oxygenated biofuels on micro-gas turbine engine for reduced emission

Devi¹,

Venkatesh²,

Vimal³

et al. 2020

AEAT

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Purpose This paper aims to investigate the effect of additives in Jet-A fuel blends, especially on performance, combustion and emission characteristics. Design/methodology/approach Jet-A fuel was formed by using Kay’s and Gruenberg–Nissan mixing rules by adding additive glycerol with TiO2. While measuring the combustion performance, the amount of oxygen content present in fuel and atomization are the key factors to consider. As such, the Jet-A fuel was created by adding additives at different proportion. A small gas turbine engine was used for conducting tests. All tests were carried out at different load conditions for all the fuel blends such as neat Jet-A fuel, G10T (glycerol 10% with 50 ppm TiO2 and Jet-A 90%), G20T (glycerol 10% with 50 ppm TiO2 and Jet-A 90%) and G30T (glycerol 10% with 50 ppm TiO2 and Jet-A 90%). Findings From tests, the G20T and G10T produced better results than other blends. The thermal efficiency of the blends of G20T and G10T are 22% and 14% higher than neat Jet-A fuel. Further, the improved static thrust with less fuel consumption was noticed in G20T fuel blend. Originality/value The G20T blends showed better performance because of the increased oxygenated compounds in the fuel blends. Moreover, the emission rate of environmentally harmful gases such as NOx, CO and HC was lower than the neat Jet-A fuel. From the results, it is clear that the rate of exergy destruction is more in the combustion chamber than the other components of fuel.

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Sustainability Metrics of a Small Scale Turbojet Engine

Cited by 16 publications

References 34 publications

Exergy Based Sustainability Assessment of an Orc Integrated Waste Heat Recovery System for Marine Vessels

Exergy Based Sustainability Assessment of an Orc Integrated Waste Heat Recovery System for Marine Vessels

Ekserji̇ Anali̇zi̇ Yöntemi̇ Kullanilarak Bi̇r Gaz Türbi̇nli̇ Jet Motorunun Performans Araştirmasi

Influence of high oxygenated biofuels on micro-gas turbine engine for reduced emission

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