Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES最新文献_第2页

In Situ Catalytic Conversion of Glycerol to Triacetin under Microwave Irradiation with Commercial Palladium on Activated Carbon Catalyst 商品钯活性炭催化剂微波辐射下原位催化甘油制三乙酸酯的研究

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2023-08-01 DOI: 10.13044/j.sdewes.d11.0465

N. Azmi, M. Ameen, G. Yashni, S. Yusup, M. Hizami, M. Yusoff, Y. H. Chai

{"title":"In Situ Catalytic Conversion of Glycerol to Triacetin under Microwave Irradiation with Commercial Palladium on Activated Carbon Catalyst","authors":"N. Azmi, M. Ameen, G. Yashni, S. Yusup, M. Hizami, M. Yusoff, Y. H. Chai","doi":"10.13044/j.sdewes.d11.0465","DOIUrl":"https://doi.org/10.13044/j.sdewes.d11.0465","url":null,"abstract":"The depletion of non-renewable fossil fuels has increased the importance of carbon-neutral resources like biofuel and biodiesel. Biodiesel is a better fuel option than petrodiesel due to its excellent lubricity, non-toxic nature, and lack of sulphur. However, the excess production of glycerol is a challenge for biodiesel usage. This study investigates using an acetylation process with palladium on the activated carbon catalyst to convert glycerol into triacetin, a potential fuel additive for biodiesel blends. The study optimises the reaction parameters using response surface methodology to achieve high selectivity for triacetin. The study determined that the optimised parameters for achieving 96.64% glycerol conversion and 0.231% triacetin selectivity are 110 ˚C, a 1:10 glycerol -acetic acid mole ratio, and 0.718 wt% catalyst loading. Analysis of variance revealed that the reaction temperature significantly impacts glycerol conversion, while the glycerol-acetic acid mole ratio affects the selectivity of triacetin.","PeriodicalId":46202,"journal":{"name":"Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44785731","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

Recycling of Polyethylene and Polypropylene Waste to Produce Plastic Bricks 回收聚乙烯和聚丙烯废料生产塑料砖

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2023-07-01 DOI: 10.13044/j.sdewes.d11.0462

D. C. Ali, A. K. Jassim, R. Al-Sabur

引用次数: 1

Air-source heat pump (ASHP) under very climate change scenarios: a numerical analysis 非常气候变化情景下空气源热泵(ASHP)的数值分析

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2023-07-01 DOI: 10.13044/j.sdewes.d11.0458

C. Baglivo, D. Mazzeo, N. Matera, Paolo Maria Congedo

引用次数: 1

Analysis of Thermal and Humidity Sensations in Educational Buildings in Eastern European Climate Conditions 东欧气候条件下教育建筑的湿热感分析

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2023-07-01 DOI: 10.13044/j.sdewes.d11.0461

L. Dębska, N. Krawczyk, Andriej Kapjor

引用次数: 1

Sustainability assessment of water coast systems through bird monitoring and water quality indicators. Case study: Juan Angola Channel - Cartagena, Colombia 通过鸟类监测和水质指标评估水岸系统的可持续性。案例研究:胡安安哥拉海峡-卡塔赫纳，哥伦比亚

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2023-07-01 DOI: 10.13044/j.sdewes.d11.0452

Jalelys Leones, Candelaria Nahir Tejada Tovar, Juan Felipe Restrepo, Katherine Velandia, Gezira De Ávila-Montiel, Ángel Villabona, E. Sánchez-Tuirán, Karina Ojeda Delgado

引用次数: 1

Assessment of Energy Efficiency and Flexibility Measures in Electrified Process Heat Generation Based on Simulations in the Animal Feed Industry 基于动物饲料工业模拟的电气化过程发热的能效和灵活性措施评估

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2023-07-01 DOI: 10.13044/j.sdewes.d11.0444

Lukas Knorr, F. Schlosser, H. Meschede

引用次数: 2

Identifying the optimal measures to reduce the heating energy consumption and environmental impact of existing apartment blocks in the Republic of Kosovo 确定减少科索沃共和国现有公寓楼供暖能耗和环境影响的最佳措施

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2023-07-01 DOI: 10.13044/j.sdewes.d11.0455

Arlinda Bresa, B. Dragusha, Xhevat Berisha, R. Selimaj, Naser Sahiti

引用次数: 2

Thermodynamic-based method for supporting design and operation of thermal grids in presence of distributed energy producers 在分布式能源生产商存在的情况下，支持电网设计和运行的基于热力学的方法

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2023-07-01 DOI: 10.13044/j.sdewes.d11.0459

Catrini Pietro, Tancredi Testasecca, M. La Villetta, M. Morale, A. Piacentino

{"title":"Thermodynamic-based method for supporting design and operation of thermal grids in presence of distributed energy producers","authors":"Catrini Pietro, Tancredi Testasecca, M. La Villetta, M. Morale, A. Piacentino","doi":"10.13044/j.sdewes.d11.0459","DOIUrl":"https://doi.org/10.13044/j.sdewes.d11.0459","url":null,"abstract":"District heating networks are well-established technologies to efficiently cover the thermal demand of buildings. Recent research has been devoting large efforts to improve the design and management of these systems for integrating low-temperature heat coming from distributed sources such as industrial processes and renewable energy plants. Passing from a centralized to a decentralized approach in the heat supply, it is important to develop indicators that allow an assessment of the rational use of the available heat sources in supplying heating networks, and a quantification of the effect of inefficiencies on the unit cost of heat. To answer these questions, Exergy Cost Theory is here proposed. Thanks to the unit exergetic cost of heat, energy managers can (i) quantify the effects of thermodynamic inefficiencies occurring in the production and distribution on the final cost of heat, (ii) compare alternative systems for heat production, and (iii) monitor the performance of buildings’ substation over time. To show the capabilities of the method, some operating scenarios are compared for a cluster of five buildings in the tertiary sector interconnected by a thermal grid, where heat is produced by a cogeneration unit, an industrial process, and distributed heat pumps. Results suggest that moving from the centralized production of heat based on fossil fuels to a decentralized production with air-to-water heat pumps, the unit cost of heat can be decreased by almost 30% thanks to the improvement of thermodynamic efficiency. In addition, the analysis reveals a great sensitivity of unit exergetic cost to the maintenance in substations. The developed tool can provide thermodynamic-sound support for the design, operation, and monitoring of innovative district heating networks.","PeriodicalId":46202,"journal":{"name":"Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48639651","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

Integration of Renewable Energy Systems at City Gate Stations to Reduce Pre-Heating Gas Consumption 在城市门站整合可再生能源系统以减少预热用气

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2023-07-01 DOI: 10.13044/j.sdewes.d11.0447

L. Cheli, Michele Meazzini, Lorenzo Busi, C. Carcasci

引用次数: 1

Grey Water Footprint of Thermal Power Plants in Ecuador 厄瓜多尔火电厂灰水足迹

IF 2.1

Journal of Sustainable Development of Energy Water and Environment Systems-JSDEWES Pub Date : 2023-06-01 DOI: 10.13044/j.sdewes.d11.0457

S. Vaca-Jiménez, G. Vásquez, José Luis Palacios-Encalada

引用次数: 1