Yazarlar
- Cuce, Erdem(27)
- Cuce, Pinar Mert(22)
- Tozlu, Alperen(12)
- Guclu, Tamer(10)
- Karaali, Rabi(10)
- Imamoglu, Ilyas Kays(7)
- Isik, Cem(7)
- Ongan, Serdar(7)
- Aydin, Rahman(4)
- Hırca, Tuğçe(4)
- Karaali, R.(4)
- Keven, Arzu(4)
- Özahi, Emrah(4)
- Abusoglu, Aysegul(3)
- Ceviz, Mehmet Akif(3)
- Eryılmaz Türkkan, Gökçen(3)
- Kuziboev, Bekhzod(3)
- Serencam, Uğur(3)
- Tozlu, A.(3)
- Yıldırım, Ümit(3)
- Çakir, Uǧur(3)
- Çomakli, Kemal(3)
- Abuşoǧlu, A.(2)
- Afshari, Faraz(2)
- Aloui, F(2)
- Arslantürk, Cihat(2)
- Atabani, A.E.(2)
- Ayşegül, Çokgez Kuş(2)
- Dincer, I(2)
- Erol, Şahin(2)
- Guleryuz, Didem(2)
- Güler, Cüneyt(2)
- Güngör, Osman(2)
- Jomaa, Seifeddine(2)
- Kamiloğlu, Hakan Alper(2)
- Kemal, Çomakli(2)
- Köksal, Hüseyin(2)
- Niazkar, Majid(2)
- Ozahi, Emrah(2)
- Riffat, Saffa(2)
Yayınlar
- MakaleAçık Erişim2025Farmers as a consumers: utaut with dual moderated mediation model
Yilmazel, Sefa Emre
The purpose of the study is to determine the factors that affect the adoption and implementation of clean and energy efficient practices by farmers. For this reason, in line with the model developed within the scope of UTAUT, it was investigated whether two moderator variables (environmental concern, financial benefits) make a difference for clean and energy practices. Data were collected from 400 participants for clean production and 400 participants for energy-efficient production. The data obtained were analyzed with Process Macro model 4 and model 21 developed by Hayes. As a result, it was seen that the UTAUT variables had a significant effect on farmers' adoption intention in both data. In addition, the moderating effect of adoption intention on the relationship between UTAUT variables and usage behavior was proven. Furthermore, the effect of both moderator variables in the study was revealed. While environmental concern has a moderating effect between performance expectancy, effort expectancy and facilitating conditions and adoption behavior in the clean production. Financial benefits has a significant moderating effect between adoption intention and usage behavior for all four of the UTAUT variables in the energy efficient production.
- MakaleAçık Erişim2025CO2 Emissions Forecast Based on Renewable and Non-Renewable Energy Consumption in Türkiye
Eygu, Hakan; Coşkun, Hüseyin
This study aims to reveal the impact of renewable and non-renewable energy consumption on CO2 emissions in Türkiye and the potential to reach the CO2 emission level targeted in the 2030 Paris Agreement. In the first stage, the cointegration relationship was analyzed with the AARDL model approach using annual data for 1965-2022. According to the results of the analysis, in the long run, non-renewable energy consumption increases CO2 emissions, while renewable energy consumption decreases CO2 emissions. In the second phase of the research, three scenarios were prepared for each of renewable and non-renewable energy consumption. For nine scenarios, including combinations of these scenarios, CO2 emissions that may occur until 2030 were estimated using the econometric simulation method. According to the estimation results, the low non-renewable energy consumption and high renewable energy consumption scenario was determined as the scenario that can reduce CO2 emissions the most until 2030. However, even in this case, it is understood that more investment in renewable energy will be required since the 2030 CO2 emission reduction target will not be achieved. Therefore, policymakers need to enact policies to increase incentives for renewable energy generation in both the public and private sectors and take steps to improve the necessary infrastructure.
AtıfOpenAlex4TR Dizin1
İncele - Derleme MakaleAçık Erişim2025Digitalization and Sustainability Conflict in Society: Waste Culture and Green Consciousness
Kizmaz, Nuran
Sustainability, which is based on the protection of the resources we have within the framework of the global climate crisis, is gaining importance day by day. With the industrial revolution, we see that the daily lives of individuals have become integrated with technology. It is seen that all institutions of society, from communication to economy, from education to politics, have become connected to technology and networks. Thus, the concepts of increasing digitalization and sustainability have become synonymous with each other. In this article, the relationship between the two concepts will be analyzed in a social and environmental context, and their positive and negative aspects will be discussed. This study aims to understand and evaluate the conflict between wasteful culture and green consciousness by addressing the societal implications in the relationship between digitalization and sustainability. By examining how digital technologies have the potential to provide environmental benefits but also how they affect environmental threats such as e-waste, the study aims to reveal the societal consequences arising from this dilemma. Thus, the main question of the research will be tried to be answered whether digitalization provides environmental benefits in line with sustainability goals or deepens the e-waste crisis by triggering a culture of waste. In the research, a literature review will be conducted from qualitative research methods. As a result, inferences will be made on the future potential of sustainable digital technologies by drawing attention to the awareness of the balance between digitalization and green consciousness.
- MakaleAçık Erişim2025Optimization and Mechanical Performance of Alkali-Activated Bottom Ash and Polypropylene Fiber in Deep Mixing Columns
Yilmaz, Fatih; Kamiloğlu, Hakan Alper; Avlayan, Büşra
Deep mixing columns (DMC) are one of the widely used soil improvement methods in cohesive and cohesionless soils. Cement and lime are predominantly used as conventional binders in DMC grout. Due to high CO2 emissions from conventional binders, the feasibility of using alkali-activated binders as DMC grout is being investigated. This study was conducted in three main stages. In the first stage, the proportions of bottom ash and activator (mixture of 10M NaOH and Na2SiO3) were optimized to achieve the highest UCS value using response surface methodology (RSM). In the second stage, the influence of polypropylene fiber content was examined in detail by incorporating varying amounts of fibers into the optimized binder-activator mixture to determine the optimal fiber content. Since DMC are fully buried, they are cured in the soil media. In this case, the soil temperature, which varies along the depth of the soil, also becomes the curing temperature of the DCM. Due to climate, soil condition and thermodynamic based parameters, curing temperature of the DMC varies throughout the soil depth. Therefore, in the third stage, the effect of curing temperature on the mechanical properties of the stabilized samples was evaluated under different temperatures. Results of the study revealed optimal UCS values with AAB content of 0.3-0.5 and activator content of 0.45-0.5. Polypropylene fiber reinforcement further improved strength, reaching an optimum at 1.50-1.75% content. Curing temperature played a significant role, with UCS and modulus of elasticity increasing up to 30 °C, indicating the importance of considering environmental factors in DMC design. These findings suggest that the optimized mixture has the potential to replace conventional cement-based binders in DMCs, offering a more sustainable solution with lower carbon emissions. Furthermore, the observed influence of curing temperature highlights the need to account for subsurface thermal variations when designing DMCs, as these factors significantly affect strength gain and long-term performance.
- MakaleAçık Erişim2025Scopus SJRQ2Life cycle cost and carbon footprint analysis of CuO–Al2O3/water hybrid nanofluids in thermoelectric vaccine refrigerators
Cuce, Pinar Mert; Guclu, Tamer; Cuce, Erdem
This study investigates the application of a CuO–Al2O3/water hybrid nanofluid as a coolant in thermoelectric vaccine refrigerators, aiming to enhance heat dissipation from the Peltier module’s hot side. A 35-L cooling cabinet was utilised, and experimental comparisons were made using water and a 2% CuO–Al2O3/water hybrid nanofluid. Results show that the vaccine cabinet reaches the target temperature of 4 °C in 990 s with nanofluid, compared to 1200 s with water. The system’s energy consumption was reduced by 18.3%, and carbon emissions decreased by 12.3% over a 15-year lifespan, highlighting its environmental benefits. Despite similar coefficients of performance (COP), the nanofluid system demonstrates enhanced efficiency, shorter cooling times, and long-term sustainability advantages. These findings support the adoption of hybrid nanofluids in thermoelectric cooling applications for energy-efficient and environmentally friendly refrigeration systems.
AtıfScopus6WoS6OpenAlex8
İncele - MakaleYalnız künye2025Scopus SJRQ1Eco-friendly reduction of graphene oxide using urea: An optimized approach for high-performance rGO
Ucuncuoglu, Didar; Bektaş, Enes; Karakaş, İbrahim Hakkı; Amin Bhuiyan, Mohammad Ruhul; Korucu, Haluk
The growing demand for environmentally friendly and cost-effective approaches has accelerated the development of sustainable methods for the synthesis of reduced graphene oxide (rGO). In this study, urea was utilized as a green reducing agent for rGO synthesis, offering an alternative to conventional toxic chemicals. The synthesized rGO was comprehensively characterized using FTIR, SEM-EDS, Raman spectroscopy, XRD, BET analysis, zeta potential, and conductivity measurements. These analyses revealed key functional, structural, and morphological properties, including surface functional groups, elemental composition, carbon-to-oxygen (C/O) ratio, particle size (PS), crystallite size (CS), specific surface area (SSA), zeta potential (ZP), thermal conductivity (TC), and electrical conductivity (EC). Process optimization was performed using the Taguchi L4(23) orthogonal array design across nine quality parameters. Under optimal conditions, notable enhancements were achieved: C/O ratio increased by 108%, ID/IG ratio by 164%, I2D/IG ratio by 26%, CS by 75%, and SSA by 134%, while PS was reduced by 37%. Furthermore, ZP and TC increased by 58% and 33%, respectively, whereas EC was reduced by 97%. These findings demonstrate the potential of urea as a sustainable and effective reducing agent in the production of high-performance rGO materials.
AtıfScopus3WoS3OpenAlex3İncele - MakaleAçık Erişim2025Scopus SJRQ1Teacher Candidates with Biospheric Value, Farming and Openness Personality Type are Worried About Climate Change
Ulum, Ömer Gökhan; Alkış Küçükaydın, Menşure
Climate change is one of the most widespread problems affecting human well-being. Extreme weather events and ecosystem uncertainties also seriously threaten future teachers. However, we know little about the variables associated with teacher candidates’ climate change worry (CCW). Therefore, this study aims to identify the variables that predict CCW. In this study, the survey model was used to determine the variables associated with teacher candidates CCW. A total of 508 teacher candidates (72.4% female and 27.6% male) from Turkey participated in the study. The age range of the teacher candidates was 21 to 24 (M = 21.1, SD = 1.23). Hierarchical regression analysis was used to evaluate the data. According to the results, teacher candidates who earn their living by farming and have a biospheric value orientation experience CCW. Some personality traits also relate to CCW. The results provided insight into the variables related to teacher candidates’ CCW. This situation is important for the support training for teacher candidates.
- MakaleAçık Erişim2025Scopus SJRQ1Stimulating Pro-Environmental Behavior Through Social Media Marketing in Environmental Organizations
Bilgin, Yusuf; Çetinkaya, Ali
Environmental organizations have increasingly utilized social media platforms to highlight issues related to climate change and environmental challenges, raise public awareness, foster engagement on environmental matters, cultivate a positive corporate image, and promote environmentally sustainable consumption practices. However, there is a lack of empirical evidence regarding the influence of these organizations' social media marketing strategies on their followers. The study aims to investigate the effect of environmental organizations’ social media marketing activities on brand image, online word-of-mouth communications, and the pro-environmental behaviors of followers. A quantitative approach was used in the research, and data were gathered through online questionnaires from 529 users who actively follow ten well-known environmental organizations on Facebook, Instagram, Twitter, and LinkedIn in Türkiye. The theoretical model and hypotheses were tested with Structural Equation Modeling (SEM). The social media marketing components of environmental organizations were defined as awareness, interaction, timeliness, customization, and advertising. As a result of the analysis, it was revealed that the social media marketing components of environmental organizations' awareness, timeliness, and interaction have a positive effect on the pro-environmental behaviors of the followers. At the same time, these components have a significant effect on brand image and online word-of-mouth in environmental organizations. In addition, it has been demonstrated that brand image and online word-of-mouth in environmental organizations significantly affect on the pro-environmental behaviors of the followers. The findings suggest that social media serves as an effective platform for environmental organizations to enhance their brand image and promote pro-environmental behavior. However, these organizations face challenges regarding the effectiveness of advertisements and the personalization of communication on these platforms.
AtıfScopus3OpenAlex5İncele - Kitap BölümüYalnız künye2025CFD and solar water collector
Guclu, Tamer; Cuce, Pinar Mert; Cuce, Erdem
Increasing environmental pollution on a global scale and the rapid depletion of traditional energy sources have led scientists to search for clean and renewable energy sources. Among renewable energy sources, solar energy stands out as a clean, energy-efficient and abundant source. There are many methods of obtaining thermal and electrical energy from solar energy. Among these methods, solar water collectors are widely used throughout the world, thanks to their wide range of applications, from domestic hot water supply and space heating applications to industrial process heat. The main purpose of this study is to examine solar water collector systems in a general framework. Solar water collector types are introduced in detail, their performance is evaluated, and especially CFD studies on their thermal efficiency are presented. Solar water collector systems were examined comparatively in terms of energy efficiency and the parameters affecting their thermal performance were observed. As a general acceptance, evacuated-tube solar water collectors are more efficient than flat-plate collectors. Compound parabolic collectors are preferred in higher-temperature applications. Thermal efficiency can be increased by using nanofluids or hybrid systems.
- Derleme MakaleYalnız künye2025Scopus SJRQ3Artificial Intelligence and Environmental Impact: Moving Beyond Humanizing Vocabulary and Anthropocentrism
Karakaş, Ümit; Özdemir, Vural
Artificial intelligence (AI) and its applications in digital health, bioengineering, and society have significant material impacts on the environment owing to AI’s vast energy demands and energy consumption, carbon footprints, and water usage to cool data centers and generate electricity to power the data centers. Yet, the environmental footprints of AI remain underappreciated and inadequately acknowledged. This is significant, particularly in this era of climate emergency and ongoing threats to planetary energy and water supplies. The vocabulary attached to AI often aims to mimic positive human capacities such as “warmness” and “care.” However, these attempts to humanize AI and digital technology come with an anthropocentric gaze and blind spots that bracket out the environmental impacts and footprints of AI and privilege humans and technology over nonhuman animals and planetary ecological limits. In medicine, the environmental impacts of large language models range from water consumption and carbon emission to rare mineral usage. This commentary and innovation analysis question and queer the popular imagination of AI and digital technology as things that only exist in the immaterial world of cyberspace. In the course of research on AI in planetary health, we must be cognizant of its materiality, ecological impacts, and massive energy and water demands. We argue that moving away from anthropocentric narratives and vocabulary in AI design and praxis would bode well to live within planetary ecological limits so that AI and emerging digital technologies best serve robust and responsible science and all life on the planet Earth. Copyright 2025, Mary Ann Liebert, Inc., publishers.
AtıfScopus10WoS7OpenAlex13
İncele - MakaleAçık Erişim2025Scopus SJRQ3A review and classification of conventional, advanced, smart and multifunctional glazing technologies for low-carbon building applications
Cuce, Pinar Mert; Guclu, Tamer; Cuce, Erdem
In this study, various smart window technologies are introduced, examined in terms of energy efficiency, and their advantages over existing conventional windows are presented. Smart window technologies used today are more energy efficient than traditional single and double-glazing windows. It is possible to achieve up to 80% energy savings in building heating/cooling costs compared to traditional window technologies, with a correctly selected and applied smart window technology depending on various external factors such as building facade, climatic conditions and window area. Therefore, smart windows technologies play a leading role in the realisation of nearly/zero energy building goals.
AtıfScopus1WoS1OpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ1The Role of Women's Entrepreneurship, Unemployment, Global Warming, and Technology in Sustainable Development: Evidence From OECD Countries
Isik, Cem; Ongan, Serdar; Günlü, Ebru; Aydin, Rahman; Imamoglu, Ilyas Kays
This study examines the effects of women's entrepreneurship, global warming, technological advancements, and unemployment on the achievement of the sustainable development goals (SDGs) across 38 OECD countries. Using country-specific panel causality methods, the analysis reveals significant asymmetries between developed and developing economies. Women's entrepreneurship (FEM) and technology (TEC) demonstrate stronger positive effects in developing countries such as Mexico, Slovakia, and Costa Rica, supporting SDGs 5 and 9. Global warming (SUR) negatively affects both groups, with notable impacts in Belgium, Mexico, and the UK, emphasizing the urgency of SDG 13. Unemployment (UNM) poses greater threats to sustainable development in emerging economies-particularly in Turkey and Latin American nations-while its influence remains limited in advanced countries. These results underscore the heterogeneous nature of SDG progress and suggest that universal, one-size-fits-all policies may fall short. Instead, national strategies should strengthen gender-inclusive entrepreneurship and innovation, while mitigating climate risks and labor market vulnerabilities. This paper presents a novel, multidimensional econometric framework and offers original insights into how interlinked economic, social, and environmental factors influence sustainability outcomes across diverse national contexts.
AtıfScopus23WoS18OpenAlex21İncele - MakaleAçık Erişim2025Scopus SJRQ3A Social Approach to Environmental Sustainability: The Nexus Well-Being, Tourism, Digitalization and Renewable Energy in Scandinavian Countries
Isik, Cem; Ongan, Serdar; Aydin, Buket; Aydin, Rahman; Imamoglu, Ilyas Kays
This research explores the impact of subjective well-being (SWB) on CO2 emissions in Scandinavian countries based on the need to analyze the effects of social indicators shaping environmental sustainability. The study aims to introduce the Welfare-Based SWB approach to the literature by expanding the classical Environmental Kuznets Curve (EKC) hypothesis with the social welfare dimension. SWB is considered in this study to be a social reflection and indirect measure of economic growth, which is the core determinant in the classical EKC hypothesis. The second-generation cointegration test, the Durbin-Hausman, and AMG long-term forecasting methods were used in this context. According to the empirical findings, SWB and digitalization increase carbon emissions, while tourism revenues and renewable energy consumption reduce emissions. The findings indicate that the classical EKC hypothesis is not confirmed and, similarly, an increase in social welfare (SWB) does not automatically lead to environmental improvement. Therefore, policymakers should develop social policies that will increase environmental sensitivity along with an increase in welfare.
AtıfScopus16WoS13OpenAlex16İncele - Derleme MakaleAçık Erişim2024Scopus SJRQ4Bibliometric research on carbon footprint and green organization concepts
Durmuş, İbrahim; Gücüyeter, İlknur
Objective: Carbon footprint and green organization research clarify the concepts emphasized by the authors, the relations between the concepts, the words that have been popular over the years, and the research rates of the authors in terms of countries. Material and Methods: R program and bibliometric analyses were used to analyze the studies in Scopus and WoS databases. Results: Carbon footprint and green organization research have intensively been researched in recent years, the concepts of sustainability observed, climate change in the carbon footprint frequently emphasized, and the strong relationship among them observed. In recent years, it has been understood that the words carbon footprint, environmental sustainability, carbon, sustainability, green supply chain management, greening, environment, green informatics, energy, green technology, innovations, climate change, and circular economy are very popular. Conclusion: Today, the activities of organizations are influenced by many environmental approaches. In a world that is getting more polluted day by day, there is a great need for green organizations. Economic gains, which are among the priorities of countries, cause an increase in carbon emissions and a narrowing of the habitat of all living things.
AtıfOpenAlex8TR Dizin4İncele - MakaleAçık Erişim2024İnsansız Hava Araçları ile Orman Yangınlarının Tespitinde Görüntü İşleme ve Yapay Zekâ Tabanlı Otomatik Bir Model
Kökhan, Serhan; Engin, Mustafa Alptekin
Nefes almak için gereksinim duyduğumuz oksijenin büyük bir kısmı, hayatta kalabilmemiz için hayati öneme sahip olan ormanlar tarafından üretilir. Bu yüzden ormanları korumak, içinde yaşadığımız yüzyılın en önemli konu başlıklarından bir tanesidir. Dünyanın farklı coğrafyalarında (ABD, Avustralya vb.) her yıl meydana gelen orman yangınları ciddi ekonomik kayba neden olmakta ve ekosistemi olumsuz olarak etkilemektedir. Ateşin çeşitli renk, şekil ve doku özelliklerine sahip olması orman yangınlarının uzaktan algılanmasını zorlaştırmaktadır. Yapılan bu çalışmada orman yangınlarının tespitinde insansız hava araçları vasıtasıyla tamamen otomatik bir sistem önerilmiştir. Ormanlık arazinin tespitinde uydu görüntüleri üzerine görüntü bölütleme yöntemi kullanılmış, insansız hava aracının tespit edilen bölgeyi en kısa zamanda ve en az görüntü ile kontrol edebilmesi için de küme kaplama yöntemi kullanılmıştır. Daha sonra elde edilen imgeler üretilen yapay zekâya dayalı ateş algılama modeline göre değerlendirilip başlangıç ve ileri aşamadaki yangınlar tespit edilmiş ve konumları elde edilmiştir. Sonuç olarak, yapılan çalışmada yaklaşık %97,51 değerinde doğrulukla yangın tespit eden bir erken uyarı modeli önerilmektedir.
AtıfOpenAlex3İncele - MakaleAçık Erişim2024L Tipi Matris ve Fine-Kinney Metodları Kullanılarak Erzurum Havalimanı’nın Çevresel Risk Değerlendirmesi
Kul, Sinan; İrdemez, Şahset; Ozdemir, Mustafa; Bedir, Ferdin
Dünya ekonomisinde önemli bir yeri olan havacılık sektörü diğer birçok sektör ile karşılaştırıldığında çok daha yüksek bir büyüme oranına sahiptir. Günümüzde küresel sera gazı emisyonlarının yaklaşık %2'sinin bu sektörden kaynaklandığı ve ilerleyen yıllarda bu emisyonların sektörün büyüme oranları ile paralel olarak artacağı düşünülerek gerekli tedbirlerin vakit kaybetmeden alınması yerinde olacaktır. Havalimanlarının inşaat faaliyetleri süresince ekosistem olumsuz olarak etkilenirken, havalimanı altyapılarının yüksek enerji ihtiyaçları, işletme aşamasında oluşan önemli miktarlardaki atık maddeler, havalimanı operasyonlarından kaynaklanan gürültü emisyonları vb. nedenler yerel halkın refahını önemli ölçüde etkileyebilmektedir. Havalimanlarında yürütülen uygulamaların çevreyi ve yerel halkı etkilediği göz önünde bulundurulduğunda, ekonomik gerekçeleri bahane etmeden havalimanlarının yönetimleri tarafından düzeltici önlemlerin uygulamaya alınması gerekmektedir. Bu çalışmada bahsi geçen çevresel problemler değerlendirilerek, Erzurum Havalimanı’nın işletilmesi sürecinde, risk değerlendirmesi yapılması ve çevresel etkilerinin belirlenmesi amaçlanmaktadır. Çalışmada çevresel risk faktörleri belirlenerek, risklerin çevreye olası etkileri L tipi matris metodu ve Fine-Kinney metodu kullanılarak ortaya konulmaya çalışılmıştır. Bu doğrultuda havalimanı bünyesinde yer alan ofis, mutfak, marangozhane, depo, bakım onarım vb. birimlerde çevresel zararlara sebep olabileceği düşünülen çevresel risk etmenleri değerlendirilmiştir. Havalimanında yapılan değerlendirmeler sonucunda L tipi matris metoduyla 11 adet orta, 243 adet katlanılabilir ve 39 adet önemsiz düzey risk tespit edilmişken, Fine-Kinney metoduyla 7 adet yüksek, 31 adet önemli, 136 olası ve 119 adet önemsiz düzey çevresel risk tespit edilmiştir. Alınacak önlemlerin, havalimanının muhtemel çevresel etkilerini büyük ölçüde düşüreceğini göstermektedir.
AtıfOpenAlex2TR Dizin2İncele - MakaleAçık Erişim2024İktisadi Büyüme, Enerji Tüketimi ve CO2 Emisyonu Arasındaki İlişki: MIST Ülkeleri Üzerine Bir Değerlendirme
Yıldız, Şaduman; Gök, Aslıhan
İktisadi büyüme kişi başına reel gayrisafi yurtiçi hasıla (GSYH)’daki artışı ifade etmektedir. Ülkelerin gelişmişlik düzeyini ortaya koyan en önemli göstergelerden biri de iktisadi büyümedir. Bu bağlamda ülkelerde iktisadi büyümelerini sağlamayı amaçlamışlardır. Sanayi devrimi sonucunda iktisadi büyümeyi sağlamak için ülkelerin enerji tüketiminde artış yaşanmış ve bu da çevreye zararlı atıklar karışmasına neden olmuştur. Ayrıca sanayi devrimi ile kentsel nüfusta da artış yaşanmış ve enerji tüketimi de bu bağlamla artmıştır. Çeşitli nedenlerle artan enerji tüketimi çevresel sorunların artmasına neden olmuştur. Ülkeler iktisadi büyümelerini gerçekleştirebilmek için enerji tüketimlerini artırmış ve bu da ülkelerde karbondioksit (CO2) emisyonunda da artışın yaşanmasına neden olmuştur. Yapılan bu çalışmada Meksika, Endonezya, Güney Kore ve Türkiye (MIST) ülke grubu için iktisadi büyüme, enerji tüketimi ve CO2 emisyonu arasındaki bağlantı 1971-2014 dönemi yıllık verileriyle ele alınmıştır. Ayrıca çalışmaya kontrol değişkeni olarak kentleşme verisi de dahil edilmiştir. Çalışmada eşbütünleşme ilişkisini araştırmak için Durbin-Hausman eşbütünleşme testi (2008) ve LM (2007) eşbütünleşme testi uygulanmıştır. İktisadi büyüme, enerji tüketimi, CO2 emisyonu ve kentleşme değişkenleri arasında eşbütünleşme ilişkisi bulunmuş sonra OLS-CD katsayı tahmin yöntemi ile katsayılar tahmin edilmiştir. Katsayı tahmini sonucunda enerji tüketimi için kullanılan elektrik tüketiminin CO2 emisyonunu azalttığı sonucuna ulaşılırken kentleşme ve iktisadi büyümenin ise CO2 emisyonunu arttırdığı sonucuna ulaşılmıştır.
AtıfOpenAlex2İncele - MakaleAçık Erişim2024Correlating Gas/Particle-Phase Concentration of Indicator Polychlorinated Biphenyls with Meteorological Factors in Bayburt, an Important University City of Turkey
Paloluoğlu, Cihan
This study was carried out in two seasons in Bayburt University Baberti Campus (BUBC) in Bayburt city, which is an important university city in Turkey. Gas and particle phase atmospheric concentrations of Urban atmospheric Indicator Polychlorinated Biphenyls (i-PCBs: PCB#28, 52, 101, 118, 138, 153, 180) were determined at first. Then, by using different methods, the interactions between i-PCB concentrations and meteorological factors were investigated. Gas and particle phases of atmospheric i-PCB samples were collected using a high-volume air sampler (HVAS) in BUBC . Following this stage, the samples were analyzed in a gas chromatography-mass spectrophotometer (GC-MS) by passing through appropriate extraction steps. According to the data obtained, the average gas phase ∑i-PCB concentration for the summer month was determined to be 11.314 pg/m3 during the sampling period while the average particle phase ∑i-PCB concentration was found to be 2.145 pg/m3. The average gas phase ∑i-PCB concentration was found to be 4.582 pg/m3 for the winter period while it was found to be 1.756 pg/m3 for the average particle phase ∑i-PCB concentration. In addition, the average total concentrations of i-PCBs were calculated to be 19.797 pg/m3. It was determined that meteorological factors especially temperature (from the Clausius–Clapeyron equation), wind velocity and direction, and rainfall have significant impacts on i-PCB concentration and its distribution. In light of these data, i-PCB concentrations determined in the gas phase were found to be higher than those in the particle phase. In addition, concentration rates determined in summer months were calculated to be higher compared to those calculated for winter months.
- Kitap BölümüAçık Erişim2024Smart and Sustainable Energy Systems
Guclu, Tamer; Cuce, Pinar Mert; Cuce, Erdem
Today, fossil fuels still have a more important share in energy production. Reducing the share of these resources in energy production is an extremely important issue in order to prevent the environmental effects caused by greenhouse gas emissions. Especially in the last ten years, the transformation into smart and sustainable energy systems has accelerated in order to use energy resources efficiently and to reduce greenhouse gas emissions. Smart energy systems are systems that allow the use of renewable energy sources such as solar, wind, and geothermal instead of a fossil fuel-based large production system. Thanks to these systems, instead of a single large power generation facility, energies produced from renewable sources close to the area of use can be integrated into the system, thus reducing greenhouse gas emissions. In addition, smart energy systems are effective in reducing energy costs, as they make final consumers a part of energy production. In addition, since smart energy systems allow the integration of sectors such as electricity, heating, energy, transportation, and transmission, they provide a sustainable, accessible, economical, clean, and efficient energy supply. In this study, information about smart and sustainable energy systems has been given, advantages and difficulties have been mentioned, and also an economic evaluation has been made.
AtıfScopus2OpenAlex2İncele - MakaleAçık Erişim2024Scopus SJRQ1District heating based on exhaust gas produced from end-of-life tires in Erzincan: Thermoeconomic analysis and optimization
Güngör, Osman; Tozlu, Alperen; Arslantürk, Cihat; Özahi, Emrah
This paper presents the thermoeconomic analysis and optimization of the Erzincan Waste Tire Recycling and Power Plant (EWTRPP) in Turkey and its waste heat-based district heating (DH) system. A thermoeconomical method, namely the specific exergy costing (SPECO), is applied to allocate cost flows through subcomponents of an actual existing plant. Besides, the obtained thermoeconomic results are improved by using an optimization method, namely non-dominant sorting genetic algorithm (NSGA-II), considering the temperature of the exhaust gas discharged to the atmosphere (T25), the thermal conductivity value of the insulation material (ki) and pipe roughness value (s). The energy and exergy efficiencies of the existing plant are found to be 27.37% and 35.57%, respectively, considering the data of the actual plant. Moreover, the energy and exergy efficiencies of the waste heat-based DH system are found to be 43.08% and 55.99%, respectively. The total cost rate of the overall system is deduced 13.98 $/hby means of SPECO method. According to the results of the NSGA-II optimization method, the exergy efficiency and total cost rate of the overall system are evaluated as 6.93% and −2.51 $/h, respectively. Furthermore, it is also proposed that 1304 dwellings can be heated owing to the DH system utilizing the existing exhaust gas.
AtıfScopus9WoS8OpenAlex7İncele
