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Found 6374 publications

Dynamic modelling of vapour compression cycles based on an all-mode switchable moving boundary model

Qiuwang Wang Ting Ma Nianqi Li Junming Hou Min Zeng Petar Sabev Varbanov

Publication Name: Applied Thermal Engineering

Publication Date: 2025-11-15

Volume: 279

Issue: Unknown

Page Range: Unknown

Description:

With the increasing demand for energy and growing environmental concerns, research on the performance and dynamic control strategies of chillers is vital for energy conservation and emission reduction. This work presents a seventh-order nonlinear moving boundary model with an all-mode switchable scheme for evaporators and condensers of vapour compression cycles. The proposed model, encompassing six modes, introduces a robust switching scheme that supports adjacent-mode and cross-mode transitions. Key advancements include a refined void fraction derivative model, addressing prior simplifications, and heat transfer coefficient modelling for louvred tube-fin and microchannel heat exchangers, extending applicability beyond round-tube designs. A dynamic simulation of a chiller system, validated against integral calculations, demonstrated high accuracy with simulation errors below 0.9 % and mass and energy variations of 0.15 % and 0.27 % over 24 h. A refrigerant charge model identified 0.02995 kg as optimal for maximising COP and cooling capacity under varying conditions. Steady-state and dynamic analyses showed that increased compressor speed enhances cooling performance by boosting flow rates and temperature differentials, while air velocity improves condenser efficiency and system COP. The dynamic response exhibited rapid pressure fluctuations with slower temperature changes due to external variations or heat exchanger efficiency. These findings underline the model's reliability and practical relevance.

Open Access: Yes

DOI: 10.1016/j.applthermaleng.2025.127639

Socio-Ecosystem Resilience (SER), Bioeconomic and Green Energy-Related Financial Literacy (GEFL) Sustainability in Rural, Semi-Rural, Semi-Urban, and Urban Areas

Teresa I. Salazar-Echeagaray Csongor Czipf Absalón J. Salmerón- Zapata José G. Vargas- Hernandez

Publication Name: Addressing Sustainable Development Goals Through Competency Based Education

Publication Date: 2025-11-14

Volume: Unknown

Issue: Unknown

Page Range: 175-212

Description:

This study has the aim to develop a research proposal on socio-ecosystem resilience (SER), bioeconomic and green energy-related financial literacy (GEFL) sustainability in rural, semi-rural, semi-urban, and urban communities of Veracruz. It departs from the assumption that financial literacy is basic to the use of green energy leading to create and develop socio-ecosystems resilience supported by bio-economics. The methods applied are mixed-methods approaches of a combination of quantitative surveys and qualitative insights into environmentally conscious financial practices. The result is a proposal of research farmed by the conceptual, theoretical, empirical and methodological framework.

Open Access: Yes

DOI: 10.4018/979-8-3373-3720-3.ch007

SUCCESS FACTORS OF DIGITAL SOLUTION IMPLEMENTATION

Borbála Szedmák Zsolt Roland Szabó

Publication Name: Vezetestudomany

Publication Date: 2025-11-14

Volume: 56

Issue: 11

Page Range: 55-70

Description:

Digitalization is one of the greatest challenges and opportunities of our time. While digitalization offers numerous advantages, organizations also face significant difficulties in implementing digital solutions, making it essential to examine the factors that lead to success or failure. This paper explores and contextualizes the success factors of digital solution implementation – technological factors, technology-organization fit, and management competence – through a systematic literature review (conducted in accordance with the PRISMA guidelines) and qualitative interviews. The qualitative research emphasizes the crucial role of project champions, process orientation, and experiential learning in the success of digital solution implementations in the Hungarian context.

Open Access: Yes

DOI: 10.14267/VEZTUD.2025.11.05

Inequality and Environmental Degradation in Mexico as a Result of Green and Renewable Energy-Related Financial Literacy

Csongor Czipf José G. Vargas- Hernandez

Publication Name: Global Societal Resilience Through Political Environmental and Cultural Upheaval

Publication Date: 2025-11-14

Volume: Unknown

Issue: Unknown

Page Range: 23-48

Description:

This research paper examines the complex relationship between green and renewable energy sector financial literacy and its impact on inequality and environmental degradation in Mexico. Through interdisciplinarity that engages environmental justice theory, financial inclusion frameworks, and sustainable development perspectives, this research reveals how limited financial literacy in renewable energy technologies consolidates socioeconomic inequalities while advancing environmental degradation. The research concludes that intense financial literacy programs to renewable energy literacy, combined with comprehensive policy frameworks, are essential to providing just energy transitions, which address both environmental and social justice concerns in Mexico's path toward sustainable development.

Open Access: Yes

DOI: 10.4018/979-8-3373-5651-8.ch002

A new species of Trichochloritis Pilsbry, 1891 from Sichuan, China (Gastropoda: Stylommatophora: Camaenidae)

Barna Páll-Gergely András Hunyadi

Publication Name: Acta Phytopathologica Et Entomologica Hungarica

Publication Date: 2025-11-13

Volume: 60

Issue: 2

Page Range: 155-160

Description:

Trichochloritis kiralyi sp. nov. is described from Sichuan Province, China. This new species is most similar to Trichochloritis adaequata (Gredler, 1894), which has a more elevated spire and a narrower umbilicus. Trichochloritis hunanensis Yen, 1939 is a new synonym of T. adaequata.

Open Access: Yes

DOI: 10.1556/038.2025.00255

Angulobaloghia kiralyi sp. nov. (Acari: Uropodina), a new rotundabaloghiid mite from Sarawak (Malaysia)

Sergey G. Ermilov Jenő Kontschán

Publication Name: Acta Phytopathologica Et Entomologica Hungarica

Publication Date: 2025-11-13

Volume: 60

Issue: 2

Page Range: 161-167

Description:

A new species of the genus Angulobaloghia (A. kiralyi sp. nov.) is described from Sarawak (Malaysia), based on three females and three males. The new species differs from the congeners in the shape of the genital shield of the female, the shallow depressions on the sternal and ventral shields, the length and position of the ventral setae.

Open Access: Yes

DOI: 10.1556/038.2025.00256

Green Energy-Related Financial Literacy in Latin America

Csongor Czipf José G. Vargas- Hernandez

Publication Name: Enhancing Renewable Energy Systems with Generative AI

Publication Date: 2025-11-13

Volume: Unknown

Issue: Unknown

Page Range: 343-368

Description:

This research study examines the current status of green energy-specific financial literacy in Latin America, exploring the relationship between financial knowledge and investment decision-making in renewable energy. The study indicates that while Latin America has made tremendous strides in the uptake of renewable energy, with the region increasing its renewable capacity by 51% between 2015 and 2022, there remains a significant gap in financial literacy specific to green energy investments. The findings project that enhancing green energy financial literacy can significantly accelerate the region's transition to sustainable energy systems and assist in reaching the net-zero goals of 15 Latin American countries. The report concludes with a recommendation to policy makers, financial institutions, and educational institutions to introduce tailored financial literacy programs that address green energy investment knowledge gaps in the region.

Open Access: Yes

DOI: 10.4018/979-8-3373-4272-6.ch012

First report of a thick-headed fly, Thecophora bimaculata (Preyssler, 1791) in Hungary (Diptera: Conopidae)

Jenő Kontschán

Publication Name: Acta Phytopathologica Et Entomologica Hungarica

Publication Date: 2025-11-13

Volume: 60

Issue: 2

Page Range: 227-230

Description:

Abstract: A female specimen of the thick-headed fly, Thecophora bimaculata (Preyssler, 1791), was collected in Hungary. This species is new to the Hungarian fly fauna, and this is the 54th representative of the family Conopidae Latreille, 1802 recorded from the country. A short, illustrated descriptionis presented about the newly collected species, accompanied by notes on the Thecophora of Hungary.

Open Access: Yes

DOI: 10.1556/038.2025.00249

Green Energy-Related Financial Literacy and Its Impact on Social Entrepreneurship

Csongor Czipf Absalón J. Salmerón- Zapata José G. Vargas- Hernandez

Publication Name: Entrepreneurial Narratives of Women Driving Economic and Social Transformation in Latin America

Publication Date: 2025-11-13

Volume: Unknown

Issue: Unknown

Page Range: 131-156

Description:

This study looks at how financial literacy related to green energy affects the start-up, growth, and success of social entrepreneurship projects. This study examines the ways in which financial knowledge unique to green financing options, sustainable business models, and investments in renewable energy influences entrepreneurial decision-making and venture outcomes in the social sector through a thorough literature review and theoretical analysis. The results indicate that entrepreneurs' capacity to see possibilities, obtain suitable capital, and create workable company plans that tackle social and environmental issues is much improved by increased green energy financial literacy.

Open Access: Yes

DOI: 10.4018/979-8-3373-3511-7.ch005