Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES最新文献_第9页

The Nitrogen Fertilizer Value of Selected South African Biosolids as Affected by Drying Depth on Beds 选定的南非生物固体的氮肥价值受床上干燥深度的影响

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2021-06-01 DOI: 10.13044/j.sdewes.d8.0361

E. Tesfamariam, Elvis M. Malobane, C. Cogger, I. Mbakwe

引用次数: 0

Residential Sector Energy Demand Estimation for a Single-family Dwelling: Dynamic Simulation and Energy Analysis 单户住宅的住宅部门能源需求估算：动态模拟和能源分析

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2021-06-01 DOI: 10.13044/j.sdewes.d8.0358

L. G. Gesteira, J. Uche, Luanda K. de Oliveira Rodrigues

引用次数: 6

Providing Comfortable Environment in Skygardens Within High-Rise Buildings: Analysis of the Impact of Vegetation on Wind and Thermal Comfort 高层建筑空中花园提供舒适环境:植被对风热舒适的影响分析

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2021-06-01 DOI: 10.13044/j.sdewes.d8.0353

P. Tien, M. Mohammadi, J. Calautit

{"title":"Providing Comfortable Environment in Skygardens Within High-Rise Buildings: Analysis of the Impact of Vegetation on Wind and \u0000Thermal Comfort","authors":"P. Tien, M. Mohammadi, J. Calautit","doi":"10.13044/j.sdewes.d8.0353","DOIUrl":"https://doi.org/10.13044/j.sdewes.d8.0353","url":null,"abstract":"Skygardens are increasingly being seen as design interventions for improving the social, economic and environmental values of a building. Additionally, the integration of vegetation within the building space can have health benefits for occupants, occupants’ satisfaction while improving the air quality. However, the aerodynamic response of skygarden vegetation must be understood in detail to assist designers in the selection and arrangement of species for creating a conducive environment for occupants. The current study analyses nine different vegetation configurations within a high-rise skygarden to determine the aero-thermal performance. Computational fluid dynamics simulations were carried out using the standard k-Ɛ method, where the vegetation was modelled as a porous zone with cooling capacity. The results indicate that vegetation can attenuate high wind speeds within comfort levels at occupants’ height, as well as reduce temperatures by over 1 °C in the wake of the vegetation. Whereas the performance improves with higher number of trees, but when considering limited vegetation space, the relative performance of a single-row configuration is better than a double row of trees along the skygarden edge.","PeriodicalId":46202,"journal":{"name":"Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48794731","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}

引用次数: 2

The Role of Trade and Energy in Generating Carbon Emissions and Environmental Degradation 贸易和能源在产生碳排放和环境退化中的作用

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2021-05-01 DOI: 10.13044/J.SDEWES.D9.0397

K. Ibrahim, D. Sari, R. Handoyo

{"title":"The Role of Trade and Energy in Generating Carbon Emissions and Environmental Degradation","authors":"K. Ibrahim, D. Sari, R. Handoyo","doi":"10.13044/J.SDEWES.D9.0397","DOIUrl":"https://doi.org/10.13044/J.SDEWES.D9.0397","url":null,"abstract":"Studies have incorporated trade and energy as determinants of emissions in the environmental Kuznets curve model to mitigate carbon emissions. These studies mostly focused on the overall trade without regard to goods trade that is more polluting. To this end, this study used a panel of African countries and investigate the role of goods trade and energy in generating carbon emissions. We utilized random coefficients and the generalised method of moment. Our findings confirmed the existence of the environmental Kuznets curve hypothesis. Findings further indicate that trade increases emissions and there exists evidence of non-linear nexus between trade and emissions. The composition effect increases emissions, but the effect is not robust to different estimates. Energy increases emissions, and the indirect effect of trade through energy revealed no evidence that trade has allowed Africa the use of an energy-efficient technique of production which reduces carbon emissions. Findings also confirmed the existence of income and factor abundance pollution haven hypothesis. Therefore, trade and energy should be considered in emissions mitigation policy.","PeriodicalId":46202,"journal":{"name":"Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47958798","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}

引用次数: 6

Predictive Simulation of Seawater Intrusion Control Measures in a Coastal aquifer 沿海含水层海水入侵控制措施的预测模拟

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2021-05-01 DOI: 10.13044/J.SDEWES.D9.0399

P. K. Mini, Dhananjai Singh, A. Sarangi

{"title":"Predictive Simulation of Seawater Intrusion Control Measures in a Coastal aquifer","authors":"P. K. Mini, Dhananjai Singh, A. Sarangi","doi":"10.13044/J.SDEWES.D9.0399","DOIUrl":"https://doi.org/10.13044/J.SDEWES.D9.0399","url":null,"abstract":"Many coastal aquifers are facing seawater intrusion due to overexploitation of freshwater. In this study, the groundwater flow and solute transport in a coastal aquifer of Minjur in India were simulated considering the possible cases of aquifer recharge, freshwater draft, relocation of pumping wells, etc., using numerical modelling software. The groundwater flow model MODFLOW and solute transport model MT3D were calibrated for seven years period and validated against the dataset for two years, which gave satisfactory results . The sensitivity analysis of model parameters revealed that the horizontal hydraulic conductivity greatly influenced the hydraulic head. The model was used to predict the response of the coastal aquifer to four potential scenarios like aquifer recharge, reduced pumping, relocation of pumping wells, and a combination of these scenarios. The effectiveness of various management scenarios was evaluated based on their ability to improve groundwater level and salinity in observation wells/piezometers, reduce the affected area and restrict the advancement of the seawater-freshwater interface. The result of predictive simulation indicated that a combination of scenarios such as reduction in groundwater pumping by 25% from the semi-confined aquifer, increased pumping by 25% from the unconfined aquifer, and increased recharge from rivers by constructing check dams have the potential to restrict the seawater-freshwater interface movement and improve groundwater quality in Minjur aquifer. These control measures would effectively shift the interface towards the coast by 1.0 km in the unconfined aquifer and 1.5 km in the semi-confined aquifer by 2025.","PeriodicalId":46202,"journal":{"name":"Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43910259","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}

引用次数: 3

Strontium Hexaferrite / Zinc Oxide Nanocomposites: Study on Photocatalytic Discoloration of Orange II Dye 六铁酸锶/氧化锌纳米复合材料:光催化变色橙ⅱ染料的研究

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2021-05-01 DOI: 10.13044/J.SDEWES.D9.0398

C. Herme, S. Jacobo

{"title":"Strontium Hexaferrite / Zinc Oxide Nanocomposites: Study on Photocatalytic Discoloration of Orange II Dye","authors":"C. Herme, S. Jacobo","doi":"10.13044/J.SDEWES.D9.0398","DOIUrl":"https://doi.org/10.13044/J.SDEWES.D9.0398","url":null,"abstract":"Orange II is an azo dye widely used in the textile industry. Its discharge into water bodies is harmful to the ecosystem and causes a health hazard. The removal of organic pollutants from wastewater by photocatalyzed discoloration processes has been thoroughly studied. Notwithstanding, it would be interesting to support the catalyst on magnetic materials to facilitate its recovery. In the present work, catalytic discoloration of Orange II was performed using zinc oxide nanopowder in aqueous suspension and novel composites of zinc oxide supported on magnetic materials. We report a one-step method for the synthesis of composites by precipitation of zinc oxide on hard strontium ferrites, which may improve catalyst remotion from water without decreasing its catalytic performance. Composites were structurally and magnetically characterized. The discoloration process, scanned by spectrophotometry for six hours, followed first-order kinetics with a reaction rate constant of 0.0142 1/min and a half-life of 49 min for strontium ferrite/zinc oxide in neutral media at 25 °C. Orange II significant adsorption on catalysts was discarded. The composites showed great stability in aqueous suspension and excellent photocatalytic properties compared with zinc oxide. They can be easily removed from water by magnetic decantation, with a significant recovery factor (70%).","PeriodicalId":46202,"journal":{"name":"Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44828694","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}

引用次数: 1

Technical, economic, and environmental assessment of integrating solar thermal systems in existing district heating systems under Jordanian climatic conditions 在约旦气候条件下将太阳能热系统集成到现有区域供热系统中的技术、经济和环境评估

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2021-04-01 DOI: 10.13044/J.SDEWES.D9.0395

A. Alemam, M. Al-Widyan

{"title":"Technical, economic, and environmental assessment of integrating solar thermal systems in existing district heating systems under Jordanian climatic conditions","authors":"A. Alemam, M. Al-Widyan","doi":"10.13044/J.SDEWES.D9.0395","DOIUrl":"https://doi.org/10.13044/J.SDEWES.D9.0395","url":null,"abstract":"Like most other similar institutions in Jordan, Jordan University of Science and Technology relies on a diesel-fired boiler that supplies a district heating system for space heating on campus. Different solar collector area scenarios were considered for both evacuated tube collector and parabolic trough collector technologies. The MATLAB package was utilized, and a code was developed using hourly irradiance and ambient temperature data which represented the average values for the last three years. The results show promising benefits at all levels. Technically, a high solar fraction of 0.84 can be achieved without the need for energy storage. Environmentally, potential reduction in carbon dioxide emission of 1,600 tons can be realized annually. Economically, the discounted payback period was calculated for each case studied. It turned out that the best value was 3.4 years for the case of 4,000 m evacuated tube collector and that parabolic trough collector technology is superior to evacuated tube collector technology although it has a higher initial cost.","PeriodicalId":46202,"journal":{"name":"Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42703478","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}

引用次数: 5

Analysis of Optimal Energy Supply in the Commercial Buildings: A Herpetarium 商业建筑最佳能源供应分析：一个Herpetarium

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2021-04-01 DOI: 10.13044/J.SDEWES.D9.0394

Soheil Roumi, R. Stewart, Sadaf Karkoodi, M. Parvin

引用次数: 1

Conceptual Design Method for Energy Retrofit of Waste Gas to Energy Units 废气发电机组能源改造的概念设计方法

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2021-04-01 DOI: 10.13044/J.SDEWES.D9.0396

V. Freisleben, Z. Jegla

引用次数: 3

An environmental performance analysis of upgraded and integrated treatment techniques for drinking water production through reclamation 再生生产饮用水升级综合处理技术的环境性能分析