A novel sustainable biomass-fueled cogeneration cycle integrated with carbon dioxide capture utilizing LNG regasification and green hydrogen production via PEM electrolysis: Thermodynamic assessment

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 421, P. 138529 - 138529

Published: Aug. 21, 2023

Language: Английский

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Broad table-like magnetocaloric effect in GdFeCo thin-films for room temperature Ericsson-cycle magnetic refrigeration

Journal of Applied Physics, Journal Year: 2024, Volume and Issue: 135(12)

Published: March 22, 2024

We demonstrate magnetocaloric entropy change and compensation temperatures in ferrimagnetic Gdx(Fe10Co90)100−x amorphous thin films with transition metal-rich rare earth-rich configurations. Thin are sputtered same Gd/FeCo elemental ratio at different thicknesses of various ratios a constant thickness to understand the effect these two parameters on an antiferromagnetically coupled magnetic sub-lattice system. Temperature- field-dependent measurements [M(H,T)] studies performed over broad range temperature (70–600 K) by applying field ±15 kOe sputter deposited 90 nm Gdx(Fe10Co90)1−x(x = 30,40,50,55,70). The is found increase increasing Gd concentration for thickness. A high around 0.97 J/kg K (ΔH ± 15 kOe) observed having ratio. Furthermore, we “table-like” GdFeCo film stacks operational window (60 low applied Ericsson regenerator room temperature. will provide important insight into Ericsson-cycle refrigeration sublattices.

Language: Английский

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Analyzing recent active and passive cool roofing technology in buildings, including challenges and optimization approaches

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 89, P. 109326 - 109326

Published: April 15, 2024

Language: Английский

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Optimization of a Biomass-Based Power and Fresh Water-Generation System by Machine Learning Using Thermoeconomic Assessment

Sustainability, Journal Year: 2024, Volume and Issue: 16(20), P. 8956 - 8956

Published: Oct. 16, 2024

Biomass is a viable and accessible source of energy that can help address the problem shortages in rural remote areas. Another important issue for societies today lack clean water, especially places with high populations low rainfall. To both these concerns, sustainable biomass-fueled power cycle integrated double-stage reverse osmosis water-desalination unit has been designed. The system provided by 20% generated from bottoming cycles this allocation be altered based on needs freshwater or power. This assessed energy, exergy, thermoeconomic, environmental perspectives, two distinct multi-objective optimization scenarios are applied featuring various objective functions. considered parameters assessment gas turbine inlet temperature, compressor’s pressure ratio, cold end temperature differences heat exchangers 2 3. In first scenario, considering pollution index, total cost exergy products, efficiency as functions, optimal values are, respectively, identified 0.7644 kg/kWh, 32.7 USD/GJ, 44%. Conversely, second emission output net 0.7684 27.82 2615.9 kW.

Language: Английский

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The mutual effects of residential energy demand and climate change in the United States: A wavelet analysis

Environmental and Sustainability Indicators, Journal Year: 2024, Volume and Issue: 22, P. 100384 - 100384

Published: April 4, 2024

This study examines the complex and time-varying relationship between residential energy demand (including electricity, geothermal, solar energy) climate change using wavelet analyses with monthly USA data from January 1990 to March 2023. The results show that indicators exhibit a interrelationship cyclical lag effects. Specifically, before 2021, positive correlation electricity carbon dioxide (CO2) emissions in short-term frequencies was found, but reversed thereafter, an increase CO2 levels influencing decreasing demand. In long run frequencies, link power consumption shifted over time, exhibiting inconsistent co-movement. co-movements geothermal predominantly correlations, leading short run, while leads run. both long-term dependency co-movement are mixed, correlations negative correlations. Therefore, improved insulation, energy-efficient windows, high-efficiency heating systems can all assist reducing heat loss total for domestic subsequently low emissions.

Language: Английский

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Drought Characterization Using Multiple Indices over the Abbay Basin, Ethiopia

Water, Journal Year: 2024, Volume and Issue: 16(21), P. 3143 - 3143

Published: Nov. 3, 2024

Analyzing agricultural and hydrological drought at different timescales is essential for designing adaptation strategies. This study aimed to assess in the Abbay Basin of Ethiopia by using multiple indices, namely standardized precipitation index (SPI), evapotranspiration (SPEI), normalized difference vegetation (NDVI), condition (VCI), severity (DSI). Climate extremes were assessed over between 1981 2022. The results indicate that years 1982 2014 most drought-prone, while year 1988 was wettest Basin. revealed presence extremely dry severely conditions, potentially impacting output region. Agricultural identified during main crop seasons (June September). VCI indicated wet conditions. In 2012, 65% area affected extreme nearly half experienced 2013 DSI occurrence drought, although spatial coverage conditions lower than other indices. 2003, 78.49% moderate whereas severe 20% 2010, about 90% drought. provides valuable insights communities, enabling them mitigate impact on yields utilizing An adequate knowledge policymakers potential effects socioeconomic activities recognize significance implementing climate change measures.

Language: Английский

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Characterization of the Sahelian and Guinea Savannah ecosystem of Nigeria based on land surface temperature and normalized difference vegetation index

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Drought and desertification are expected to increase in Sahelian Africa, where there significant rainfall deficits extreme temperatures. This study examined the trends vegetation climate variables during period 1986–2023 Kano, Katsina Jigawa states, Nigeria. We used Landsat 5 TM, 7 ETM⁺ 8 OLI/TIRS processed spectral indices with Google earth engine platform. For pilot site year 2015 had highest minimum (40.19°C), maximum (43.04 °C) mean (42.63 land surface temperatures (LST), while 2005 lowest of these values. The LST for three states showed a long-term over years but normalized difference index 1986 was generally low, being 0.19 0.15 0.17 becoming lower still 2010. Low condition close 0 dominant sites, suggesting typically poor growth coverage. Mild severe drought noticed state, Kano experienced mild drought. Continuous monitoring would be necessary assess overall health vegetation, providing insights into environmental changes their potential impacts on ecosystem.

Language: Английский

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The heat-safe play index (H-SPI): a tool to compare relative thermal safety of outdoor playgrounds

Urban forestry & urban greening, Journal Year: 2025, Volume and Issue: unknown, P. 128747 - 128747

Published: Feb. 1, 2025

Language: Английский

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Climate Change Awareness Among University Students in Delhi Ncr

Published: Jan. 1, 2025

Language: Английский

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Impact of Pole Motion on CO₂ Emissions Through Global Warming

Geological Journal, Journal Year: 2025, Volume and Issue: unknown

Published: March 2, 2025

ABSTRACT This paper investigates the global influence of Earth's pole motion on CO 2 emissions through warming. Empirical evidence is provided using cointegration techniques and Vector Error‐Correction estimator, covering 1962–2022. Additionally, panel Autoregressive Distributed Lag models are utilised, incorporating data from 1990 to 2020 across 144 countries bolster findings. The first set results evidences that positively influences warming dynamics in short‐term, particularly X coordinate, dynamics. Further, shock can be indirectly transmitted emissions, with mediating. EKC effect renewable energy also considered. second findings refers emissions. Herein, reduces especially during sinusoidal periods motion. In contrast, long‐term trends show a positive relationship between highlighting ecosystem modifications like sea‐level rise non‐linear economic growth Moreover, study identifies indirect pathways linking motion, warming, underscoring role factors Coriolis Effect influencing responses hemispheres. summary, boosts short term, mitigating but has an expansive tendency long term. policy implications primarily involve adaptive frameworks address dynamic geo‐environmental conditions, development reduce dependence fossil fuels by fostering low‐carbon economy innovation cost reduction, climate resilience measures, implementation effective monitoring systems track

Language: Английский

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