Recent Advances in Ejector-Enhanced Vapor Compression Heat Pump and Refrigeration Systems—A Review

Energies, Год журнала: 2024, Номер 17(16), С. 4043 - 4043

Опубликована: Авг. 15, 2024

The incorporation of ejectors into heat pump and refrigeration cycles has been the subject growing interest, largely due to their simple structure, high reliability, cost-effectiveness. This paper investigates recent advancements in novel design concepts ejector-enhanced vapor compression cycles. An overview single-stage two-stage utilizing a single or multiple is provided. First, system setup, operational principles, description, figures existing schemes are Second, main results, such as coefficient performance (COP), volumetric heating capacity exergy destruction, discussed. In conclusion, presents coherent summary current developments, future prospects, knowledge gap. A plethora research present developing theoretical systems with efficiency. However, experimental tests for real-life implementations limited. review aims provide reader an studies.

Язык: Английский

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The growth–environment nexus amid geopolitical risks: cointegration and machine learning algorithm approaches

Discover Sustainability, Год журнала: 2025, Номер 6(1)

Опубликована: Фев. 7, 2025

Geopolitical tensions, including the Russia-Ukraine conflict, ongoing Middle-Eastern wars, and post-Cold War dynamics between USA Russia, have contributed to significant global political instability. These risks disrupt economic growth, destabilize energy supply chains, foster uncertainty, often prioritizing security over environmental sustainability. Existing literature inadequately addresses how geopolitical interact with sustainability, particularly within developed economies like Canada. To bridge this gap, study examines role of per capita income on outcomes under Environmental Kuznets Curve (EKC) framework, explicitly incorporating as a critical determinant. Using Canadian time series data spanning from 1980 2022, research employs autoregressive distributed lag (ARDL) estimation technique explore short- long-term cointegrating relationships among key variables, consumption, trade openness, foreign direct investment (FDI), ICT development, financial development. The findings confirm inverted U-shaped EKC hypothesis for Canada, indicating that growth initially exacerbates carbon emissions (CO2) before leading improvements at higher levels. are found positively contribute CO2 emissions, emphasizing their barrier achieving validate robustness, Kernel Regularized Least Squares (KRLS) machine learning approach is employed, confirming consistency results. Additionally, Toda-Yamamoto causality test identifies directional causal variables. Policy recommendations emphasize need Canada implement targeted strategies mitigate impact outcomes. Specifically, advocates for: (1) diversifying sources reduce reliance geopolitically sensitive regions, (2) investing in renewable technologies ensure sustainable (3) enhancing policies prioritize low-carbon technologies.

Язык: Английский

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Green Finance Dynamics in G7 Economies: Investigating the Contributions of Natural Resources, Trade, Education, and Economic Growth

Sustainability, Год журнала: 2025, Номер 17(4), С. 1757 - 1757

Опубликована: Фев. 19, 2025

Despite the growing emphasis on sustainable development, role of green finance in context G7 economies remains largely unexplored. The increasing financial transformation motivates this study to analyze influence natural resources (NARSs), population (POPS), education (EDCT), trade (TRD), and economic growth (ECNG) (GRF) G7. Using panel data from 1996 2021, employs Pooled Mean Group Autoregressive Distributed Lag (PMG-ARDL) methodology investigate both long-run short-run relationships among these variables. To address issue possible heterogeneity, uses Cross-Sectional (CS-ARDL). Before applying PMG-ARDL methodology, conducted a series pretests ensure reliability potential endogeneity issues. These included tests for cross-sectional dependence, slope homogeneity, variance inflation factor (VIF) analysis, Cross-sectionally Augmented Im-Pesaran-Shin (CIPS) unit root testing, Westerlund cointegration test. outcomes show positive relationship between NARS, ECNG, POPS, TRD, EDCT, GRF. Specifically, 1% increase EDCT leads corresponding GRF by 0.050%, 1.98%, 1.81%, 0.62%, 0.20%, respectively. This provides valuable policy recommendations countries, emphasizing need targeted strategies enhance through management resources, growth, education, trade.

Язык: Английский

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Urbanization, Industrialization, Renewable Energy Consumption, and Economic Growth Environment

Advances in environmental engineering and green technologies book series, Год журнала: 2025, Номер unknown, С. 259 - 294

Опубликована: Фев. 21, 2025

Urbanisation is seen as a driving force for industrialisation, economic growth and increased prosperity, it has also brought environmental problems such high resource energy consumption. The aim of the study in this context, examines relationship between urbanisation, renewable consumption, quality. In line with purpose was analysed using data from 1969-2022. ADF, PP, Lee Strazicich unit root tests, Fractional Fourier Bootstrap ARDL test are applied to analyse data. According study's findings, efficiency positive effect on load capacity factor, while industrialisation have negative factor. Therefore, can be said that Türkiye growing economy by polluting environment. Moreover, since supports rapid urbanisation process, both further increase deterioration

Язык: Английский

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Industrial Robotics, Resource Efficiency, Energy Transition, and Environmental Quality: Designing a Sustainable Development Goals Framework for G7 Countries in the Presence of Geopolitical Risk

Sustainability, Год журнала: 2025, Номер 17(5), С. 1960 - 1960

Опубликована: Фев. 25, 2025

In recent years, the integration of industrial robotics has emerged as a powerful tool in reshaping industries by enhancing production efficiency, reducing waste generation, and optimizing resource utilization. However, robotics, particularly manufacturing production, require significant energy that can potentially impact on environmental quality. Despite growing adoption artificial intelligence (AI)-based there is paucity literature ecological footprint (EF), context advanced economies. this context, study aims to investigate transition, geopolitical risk EF G7 countries from 1993 2021. The employed econometric techniques, including Kernel-based Regularized Least Squares (KRLS) Artificial Neural Network (ANN) machine learning methods. results unveiled significantly curtail degradation impeding EF. Resource efficiency transition posed negative Geopolitical risks economic growth exacerbate Based results, proposes important policy implications for achieving sustainable development.

Язык: Английский

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Response of Energy Transition and Education in Driving the Ecological Balance in the BRICS Countries

Renewable Energy, Год журнала: 2025, Номер unknown, С. 122859 - 122859

Опубликована: Март 1, 2025

Язык: Английский

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Advancing Sustainable Development with Enhancing the Quality of the Environment: The Role of Human Resources Through Education Expansion and Technological Innovation in Türkiye

Journal of the Knowledge Economy, Год журнала: 2025, Номер unknown

Опубликована: Апрель 12, 2025

Язык: Английский

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The contribution of green technological innovation, clean energy, and oil rents in improving the load capacity factor and achieving SDG13 in Saudi Arabia

International Journal of Renewable Energy Development, Год журнала: 2024, Номер 13(6), С. 1125 - 1135

Опубликована: Окт. 10, 2024

This research aims to assess the effects of green technological innovation, renewable energy sources, and oil rents on load capacity factor in Saudi Arabia from 1988 2021. The primary conclusions can be outlined as follows. combined cointegration Saikkonen-Lütkepohl tests reveal long-run relationships between explanatory variables at 1% significance level. In comparison, Phillips-Ouliaris test shows evidence only 10%. Moreover, quantile regression indicates that adversely impact environmental quality; however, they remain contingent upon conditions. A increase results a decline quality by 0.025% under poor conditions, 0.036% moderate/normal 0.108% good On contrary, consumption innovation improve quality, irrespective prevailing However, impacts exceed those innovation. Results show leads 0.052-0.253% improvement whereas 0.017-0.047% improvement. Finally, population GDP per capita exert negative positive implications factor, respectively, while intensity has no significant effects. findings provide insights suggest policy recommendations address climate change meet targets set out SDG13.

Язык: Английский

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A new look at the finance–environment nexus: How yield spread affects environmental quality in the United States

Business Strategy and the Environment, Год журнала: 2024, Номер unknown

Опубликована: Окт. 22, 2024

Abstract Enhancing environmental quality is currently a key focus for policymakers. Furthermore, researchers are also prioritizing the investigation of novel variables that can influence quality. The yield spread commonly used as leading indicator business cycles in macro‐finance literature, providing information about future expectations regarding cycles. presents borrowing costs firms. None existing studies economics literature has tested impact on quality, implying level not been considered variable This study aims to fill this gap by evidence effect (between 2‐ and 10‐year government bonds) United States from June 1976 September 2023. results indicate an increase leads rise destruction. These suggest two considerable consequences. First, optimistic today lead overuse resources Second, firms' higher may be forcing them use less environmentally friendly production methods offset more expensive financing their profits. asserts companies should enhance sensitivity, policymakers adopt proactive stance, based other research demonstrates detrimental impacts regulation violations poor performances companies' stock prices financial performances.

Язык: Английский

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At the crossroads of sustainability: insights into ICT, globalization, and carbon footprint in APEC nations

Environment Development and Sustainability, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 11, 2024

Язык: Английский

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