Green Technologies and Sustainability最新文献

{"title":"Hydrogen horizons: Unlocking the potential for fuel cell-integrated sustainable recreation vehicles","authors":"Rahul Rajeevkumar Urs ,&nbsp;Max Wei ,&nbsp;Ahmad Mayyas","doi":"10.1016/j.grets.2025.100313","DOIUrl":"10.1016/j.grets.2025.100313","url":null,"abstract":"<div><div>Fuel Cell Recreational Vehicles (FCRVs) are emerging as a promising sustainable alternative to conventional diesel- and gasoline-powered recreational vehicles. This paper evaluates the financial and technological aspects of FCRVs, focusing on the cost and performance of electro-mechanical subsystems such as fuel cells, hydrogen storage, and batteries. Drawing on data from peer-reviewed reports and U.S. Department of Energy projections, the analysis examines the cost evolution of these components over time and across varying production scales. Results reveal significant cost reductions, with unit costs decreasing by 75% when FCRVs are produced at 50,000 units per year compared to single-unit production in 2022. Similarly, the cost of FCRVs produced at this scale in 2050 is projected to reduce by 62%, highlighting the continued impact of economies of scale and technological advancements. The Total Cost of Ownership (TCO) analysis underscores FCRVs’ potential long-term cost advantages, primarily through reduced fuel and maintenance expenses compared to diesel RVs. Moreover, at least $1,730 in annual social carbon costs were saved per FCRV compared to diesel RVs, underscoring their environmental benefits, particularly in reducing greenhouse gas emissions when powered by green hydrogen. While initial costs remain high, ongoing innovation and supportive policy frameworks are expected to enhance the economic viability of FCRVs, positioning them as a critical component in the transition toward sustainable transportation.</div></div>","PeriodicalId":100598,"journal":{"name":"Green Technologies and Sustainability","volume":"4 2","pages":"Article 100313"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145694275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing greenhouse covering systems for energy efficiency and solar irradiance modulation: A technical review","authors":"Enhe Zhang ,&nbsp;Mohammad Elmi ,&nbsp;Anwar Jahid ,&nbsp;Qiuhua Duan ,&nbsp;Julian Wang","doi":"10.1016/j.grets.2025.100281","DOIUrl":"10.1016/j.grets.2025.100281","url":null,"abstract":"<div><div>The selection of sustainable and effective covering systems is essential in greenhouses to ensure optimal insulation, microclimate control, energy management, and proper solar irradiance filtration for plant growth. This study evaluated representative types of greenhouse coverings: uncoated clear glass, Low-Emissivity (Low-E) coated glass, Ultraviolet (UV)-blocking coated glass, polyethylene (PE), polycarbonate (PC), anti-condensation polyethylene (PEAC), and infrared reflective plus anti-condensation polyethylene (IRAC). In our examination and comparisons, we focused on assessing their thermal and optical properties and associated energy performance through simulations across various climate zones using WINDOW, OPTICS, and EnergyPlus. In particular, this study used a full-glazing greenhouse and concluded an estimating model with interior lighting, heating and cooling energy consumption, and total energy. Low-E coated covering systems had the best U-factor among all materials and achieved an average of 15.9% reduction in total energy consumption without much suffering on interior lighting. Meanwhile, both Low-E and UV-coated glass offered desirable lighting quality in the red wavelength range, enhancing metrics such as the red-to-blue (R:B) and red-to-far-red (R:RF) ratios. Additionally, the performance of Low-E deteriorated when condensation formed, highlighting the importance of selecting materials with anti-condensation properties in certain areas where nighttime temperature significantly drops. Additionally, the findings indicated that UV coatings were not optimal for cloudy areas due to their insufficient daylight transmittance. It necessitates increased use of interior lighting to compensate for the lack of natural light. Overall, this research underscores the critical balance between energy and light performance necessary for optimal plant growth. This work aimed to guide the choice of covering systems for greenhouses.</div></div>","PeriodicalId":100598,"journal":{"name":"Green Technologies and Sustainability","volume":"4 2","pages":"Article 100281"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145652041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unraveling the cognitive underpinnings: Exploring IT managers’ meanings of Green IT practices in SME","authors":"Alexssandro Fernandes Ribeiro ,&nbsp;Maria Laura Ferranty MacLennan","doi":"10.1016/j.grets.2025.100331","DOIUrl":"10.1016/j.grets.2025.100331","url":null,"abstract":"<div><div>Information Technology (IT) plays a central role in the environmental performance of small and medium-sized enterprises (SMEs); however, the meanings that IT managers attribute to Green IT practices remain insufficiently understood. This study examines how IT managers make sense of sustainable IT practices, drawing on sensemaking theory to investigate the cognitive foundations that inform their decisions. A qualitative study was conducted with SMEs from various sectors, utilizing semi-structured interviews and content analysis to identify patterns of interpretation, barriers, and drivers that shape Green IT adoption. The findings reveal that managers predominantly interpreted Green IT through sensemaking dimensions related to identity, experience, organizational environment, contextual dynamism, evidence management, plausibility, and social interaction. Managers associate sustainability primarily with actions such as virtualization, energy efficiency, reduced printing, and recycling; however, financial and technical constraints remain significant challenges. The study contributes to the literature by presenting a framework that explains how individual cognition and organizational context jointly shape the integration of Green IT into business operations. The results provide practical insights for SME leaders seeking to strengthen sustainable IT strategies and underscore the strategic importance of aligning managerial cognitive frameworks with organizational sustainability goals.</div></div>","PeriodicalId":100598,"journal":{"name":"Green Technologies and Sustainability","volume":"4 2","pages":"Article 100331"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in nearly zero energy commercial and residential buildings: Innovations, challenges, and climate-specific solutions","authors":"Hawraa A.H. ,&nbsp;Ali Lateef Tarish ,&nbsp;Ahmed H.N. Al-Mudhafar","doi":"10.1016/j.grets.2025.100330","DOIUrl":"10.1016/j.grets.2025.100330","url":null,"abstract":"<div><div>Nearly Zero Energy Buildings (NZEBs) are pivotal in addressing the escalating energy and environmental challenges of hot climates, where extreme cooling demands and reliance on fossil fuels intensify carbon footprints. This study brides a critical research gap by exploring and synthesizing NZEB strategies specifically for the under-represented and extreme context of hot-arid regions, with a focused application on Iraq. Passive design approaches such as solar shading optimization, natural ventilation, and phase-change materials (PCMs) are synergized with active technologies, including high-efficiency HVAC systems, hybrid energy storage (battery, thermal, hydrogen), and AI-driven smart energy management systems (EMS). A multi-objective optimization framework is developed to balance energy efficiency, cost, and thermal comfort, validated through case studies of retrofitted buildings in Iraq. Results demonstrate 30%–50% energy savings via hybrid systems, emphasizing the effectiveness of climate-responsive materials and load-shifting techniques. Critical challenges, such as extreme temperatures, dust degradation, water scarcity, and policy gaps, are analyzed, with recommendations for region-specific standards and financial incentives. Future directions prioritize advanced materials high-albedo coatings, aerogel insulation, decentralized renewable microgrids, and bioclimatic designs rooted in traditional Iraqi architecture. By integrating cutting-edge technologies with adaptive policy frameworks, this research underscores the viability of NZEBs in achieving energy autonomy and resilience in hot climates, offering a roadmap for sustainable urbanization aligned with global decarbonization goals.</div></div>","PeriodicalId":100598,"journal":{"name":"Green Technologies and Sustainability","volume":"4 2","pages":"Article 100330"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparative study of rubber block properties produced by a novel rotary disc granulator and a conventional creper under different gap configurations","authors":"Akarapong Tuljittraporn ,&nbsp;Karnda Sengloyluan ,&nbsp;Andreas Limper ,&nbsp;Ekwipoo Kalkornsurapranee","doi":"10.1016/j.grets.2026.100338","DOIUrl":"10.1016/j.grets.2026.100338","url":null,"abstract":"<div><div>Natural rubber (NR) has gained a renewed attention as an eco-friendly material which have lower carbon footprints, particularly in comparison to synthetic rubbers. However, the production of block rubber from cup lump requires multiple cleaning steps to ensure quality control. These cleaning and drying processes contribute to more than 50% of the total carbon footprint of NR production. This study explores the use of a Rotary Disc Granulator (RDG) as a potential replacement for conventional creper and shredder machines in rubber block production. The modern processed rubber met all STR 20 specifications, exhibiting physical and mechanical properties comparable to those produced by the conventional method. Notably, the mechanical properties showed lower standard deviations (SD), indicating more consistent product quality. Moreover, the use of RDG significantly improved energy efficiency. Line production simulation revealed that a single RDG unit reduced energy consumption by 84.3% (from 502,850 kWh/month to 78,905 kWh/month), although this was accompanied by a 76.8% drop in productivity. To match conventional productivity, five RDG units were required while still achieving a 33.54% energy reduction. The specific energy consumption (SEC) dropped from 89.63 to 59.56 kWh/ton in this scaled-up scenario. These findings highlight the potential of the modern process with RDG to reduce energy usage in NR processing while maintaining product quality.</div></div>","PeriodicalId":100598,"journal":{"name":"Green Technologies and Sustainability","volume":"4 2","pages":"Article 100338"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Digital infrastructure, green technology innovation, and environmental sustainability: Evidence from China’s resource-based cities","authors":"Huahui Li ,&nbsp;Haoran Fu","doi":"10.1016/j.grets.2025.100332","DOIUrl":"10.1016/j.grets.2025.100332","url":null,"abstract":"<div><div>This study examines how information technology (IT) development influences the environmental sustainability (ES) of China’s resource-based cities. Using data from 1210 cities, the entropy weight method was applied to construct a digital development index, and regression models (OLS, RE, FE) were employed to estimate its impact on ES. Results indicate that IT development, particularly digital infrastructure and green technology innovation, significantly enhances ES by improving resource utilization efficiency, optimizing industrial structure, and fostering urban innovation capability. Spatial analysis (Moran’s I) reveals increasing regional clustering of digital development, while K-means clustering identifies city types with distinct digital-ES patterns. The findings highlight IT’s role as a strategic driver for green transformation in resource-dependent economies and provide policy implications for integrating digital infrastructure investment with environmental governance. This research contributes to the literature by linking digital transformation with sustainable urban transition in emerging economies.</div></div>","PeriodicalId":100598,"journal":{"name":"Green Technologies and Sustainability","volume":"4 2","pages":"Article 100332"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the techno-economic feasibility of hydrogen refueling stations using advanced algorithms: A case study","authors":"Ibrahim B. Mansir ,&nbsp;Paul C. Okonkwo","doi":"10.1016/j.grets.2026.100346","DOIUrl":"10.1016/j.grets.2026.100346","url":null,"abstract":"<div><div>The high population growth rate, the accelerated industrialization and unpredictability of oil prices in the world have considerably raised the energy demand which has enhanced the necessity of alternative and sustainable sources of power generation. Traditional fossil-fuel-based energy generators are not only economically sensitive to changes in the price of fuel but also is a serious environmental issue. These are the reasons that make the need to develop cost-effective, clean, and reliable energy solutions to meet the new applications like hydrogen refueling stations (HRSs). This paper involved a systematic assessment of the techno-economic viability and the operating range of the hybrid energy solutions based on renewable sources to supply power to a hydrogen refueling station in Lagos, Nigeria. The model employed was the Hybrid Optimization Model of Electric Renewables (HOMER Pro) and used to evaluate various hybrid options. One of the options analyzed, photovoltaic–wind turbine–battery (PV–WT-B) hybrid system proved the most economical solution with the Net Present Cost (NPC), Levelized Cost of Energy (LCOE), and Levelized Cost of Hydrogen (LCOH) of $ 24,996.78, $ 0.01564/kWh, and $ 0.516/kg, respectively. To make the optimization results more robust, the HOMER Pro results were further compared with the high-tech metaheuristic methods, such as Constrained Particle Swarm Optimization (CPSO), the Mayfly Algorithm (MA), and the Genetic Algorithm (GA). Among them, CPSO had better performance which resulted in the less NPC of USD 224,430 and the HOMER-based optimization results were lower in terms of minimizing cost. In general, the results indicate that the combination of renewable-based hybrid energy systems, along with the current development of optimization algorithms, can contribute to the significant increase of the economic competitiveness of hydrogen refueling infrastructure and its sustainability. The outcome of this study provides useful information to policy makers, planners, and investors who want to install effective and scalable hydrogen refueling stations in the fast-growing urban centers with similar hydrogen demand patterns, grid reliability, land-use restrictions, policy settings, and environmental conditions.</div></div>","PeriodicalId":100598,"journal":{"name":"Green Technologies and Sustainability","volume":"4 2","pages":"Article 100346"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable reuse of mineral waste: Synthesis and comprehensive characterization of hydroxyapatite (HAP)","authors":"Bader Bouzar,&nbsp;Nor-Edine Abriak,&nbsp;Mahfoud Benzerzour","doi":"10.1016/j.grets.2025.100315","DOIUrl":"10.1016/j.grets.2025.100315","url":null,"abstract":"<div><div>The study explores an eco-efficient synthesis method for hydroxyapatite (HAP) from mineral residues rich in calcium carbonate (CaCO₃) and monopotassium phosphate (KH₂PO₄). The process is based on a chemical reaction in an aqueous medium at ambient temperature, promoting the progressive precipitation of calcium phosphate phases. The pH evolution, monitored over 48 h, revealed the formation of transient intermediate phases such as brushite, prior to the appearance of the HAP phase. Multimodal characterization using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), thermal analysis (TGA-DTA), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDS), and BET surface area analysis confirmed the formation of a poorly crystalline, carbonated hydroxyapatite with a specific surface area reaching 81 m²/g and a Ca/P atomic ratio close to the ideal stoichiometry (1.67). The observed mesoporosity, the significant increase in specific surface area, and the low apparent density (1.24 g/cm³) indicate a favorable textural architecture. The proposed approach offers a promising, low environmental impact route for the valorization of calcium-rich residues into functional calcium phosphate materials, with potential applications in catalysis, environmental remediation, or biomedicine.</div></div>","PeriodicalId":100598,"journal":{"name":"Green Technologies and Sustainability","volume":"4 2","pages":"Article 100315"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145694328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of green innovation products on an organization’s social performance via green supply chain management","authors":"Michal Levi-Bliech,&nbsp;Gavriel Dahan","doi":"10.1016/j.grets.2025.100273","DOIUrl":"10.1016/j.grets.2025.100273","url":null,"abstract":"<div><div>The purpose of this study is to examine the impact of green innovation products on an organization’s social performance through mediation of green supply chain management. Using stakeholder resource-based view theory as a theoretical framework, the research model was developed with quantitative data from 170 managers in various industries in Israel that operate in international markets. The analyses of this study were done by structural equation modeling method via AMOS28 software.</div><div>The findings show that both green innovation products and green supply chain management directly affect an organization’s social performance. Moreover, green supply chain management partially mediates the relationship between green innovation products and an organization’s social performance. That is, social performance in this study is driven by technological improvements in developing green innovative products, such as pre-designing products that minimize waste in production, more efficient utilization of raw materials, less hazardous materials, and reduction of risks to the public, as well as by selecting green suppliers throughout the supply chain and logistics.</div><div>The main contribution of this study is an integrative model that combines two different disciplines – marketing and supply chains – into one integrative model that examines their joint impact on the organization’s social performance.</div><div>The findings provide five main insights. First, managers who want to promote social performance in their organizations should adopt green innovation products to fulfill their customers’ needs. Second, combining green supply chain management with green innovation products can create new organizational processes that may respond to stakeholders’ requirements and environmental changes, improving the organization’s social performance. Third, these findings help stakeholders such as policymakers and regulators to encourage the integration of green innovative products based on green technology, along with the development and regulatory prioritization of green suppliers, leading to a green supply chain. Fourth, the introduction of green operational indicators and data transparency enables customers and the organization to purchase greener products, services, and raw materials. Finally, researchers can extend the study findings to identify similarities across industries, make cross-country comparisons, and examine the long-term impacts of green innovation products and green supply chains on social performance.</div></div>","PeriodicalId":100598,"journal":{"name":"Green Technologies and Sustainability","volume":"4 2","pages":"Article 100273"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145694326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Smart and sustainable hydroponics: Fuzzy logic-based environmental control for optimized indoor crop growth","authors":"Putri Yeni Aisyah ,&nbsp;Imam Zarkasih ,&nbsp;Mega Kurnia","doi":"10.1016/j.grets.2025.100311","DOIUrl":"10.1016/j.grets.2025.100311","url":null,"abstract":"<div><div>Indoor hydroponics offers a promising pathway toward sustainable urban agriculture, but its effectiveness depends on precise environmental control. This study presents a compact, energy-efficient hydroponic system that utilizes fuzzy logic-based multivariable control to regulate key parameters, including pH, Total Dissolved Solids (TDS), and light intensity. The system integrates real-time sensors and actuators, enabling dynamic adjustments based on environmental feedback. Experiments conducted on lettuce, pakchoi, and spinach demonstrated the system’s ability to maintain optimal growing conditions, including a pH range of 6 to 8, TDS levels between 600 and 900 ppm, and light intensity ranging from 75 to 108 lux. Lettuce and pakchoi showed significant growth improvements, with daily height increases of 1.5 cm and 1.3 cm, respectively. Spinach exhibited stable but slower growth due to its higher sensitivity. Compared to uncontrolled conditions, the fuzzy logic system improved plant growth by 35–50 percent. Energy consumption was reduced by 20 percent through the application of Pulse Width Modulation (PWM) in LED lighting. These findings confirm the system’s capability to stabilize environmental conditions, enhance growth performance, and reduce energy use. The proposed approach supports scalable and sustainable food production in constrained urban environments, serving as a foundational model for smart farming technologies.</div></div>","PeriodicalId":100598,"journal":{"name":"Green Technologies and Sustainability","volume":"4 2","pages":"Article 100311"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145694389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}