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Is the commercial sector of Bangladesh sustainable? – Viewing via an exergetic approach
Journal of Cleaner Production ( IF 9.7 ) Pub Date : 2019-04-25 , DOI: 10.1016/j.jclepro.2019.04.270
Tamal Chowdhury , Hemal Chowdhury , M. Thirugnanasambandam , Shahariar Hossain , Pranta Barua , Jamal Uddin Ahamed , R. Saidur , Sadiq M. Sait

The current study's main objective is to apply energy, exergy, & sustainability analysis and provide suggestions to improve the sustainability of the commercial sector of Bangladesh. Data from 2000 to 2014 is analyzed, and it is found that the estimated energy efficiencies range from 65.42% to 68.5%, while exergy efficiencies range from 10.79% to 11.49%. Depletion number, sustainability index, lack of productivity, relative irreversibility, waste exergy ratio, environmental effect factor, & environmental destruction coefficient are utilized as sustainability indicators. From the study, it is found that sustainability index varies between 1.12 and 1.13, while relative irreversibility varies between 0.44 and 0.53. Lack of productivity is found to be higher for cooking appliances and varies from 3.52 to 4.06. Waste exergy ratio and environmental effect factor are found to be higher for electrical appliances. For electrical appliances, waste exergy ratio varies from 0.42 to 0.50 and environmental effect factor varies from 3.5 to 4.55. Environmental destruction coefficient reaches as high as 9.27. It is determined that Bangladesh's commercial sector is more sustainable compared to Turkey, Japan, Saudi Arabia, and Malaysia but less sustainable than Norway, and Sweden. Utilization of energy efficient lighting, waste energy management, and replacing gas-fired cooking stoves with electrical appliances are provided as recommendations to reduce exergy loss. The study outcome reveals that increasing exergy efficiencies can ensure a sustainable commercial sector.



中文翻译:

孟加拉国的商业部门可持续吗?–通过精力充沛的方式观看

本研究的主要目标是应用能源,火用和可持续性分析,并提供一些建议,以改善孟加拉国商业部门的可持续性。对2000年至2014年的数据进行了分析,发现估计的能源效率在65.42%至68.5%之间,而火用效率在10.79%至11.49%之间。枯竭数,可持续性指数,生产力不足,相对不可逆性,废物本能比,环境影响因子和环境破坏系数被用作可持续性指标。从研究中发现,可持续性指数在1.12和1.13之间变化,而相对不可逆性在0.44和0.53之间变化。发现烹饪用具的生产率不足更高,从3.52到4.06不等。人们发现,电器的废物能干比和环境影响因子更高。对于电器,废物的本能比从0.42到0.50不等,环境影响因子从3.5到4.55不等。环境破坏系数高达9.27。可以确定的是,与土耳其,日本,沙特阿拉伯和马来西亚相比,孟加拉国的商业部门更具可持续性,但比挪威和瑞典的可持续性差。建议使用节能照明,废物能源管理以及用电器代替燃气灶具,以减少火用损失。研究结果表明,提高火用效率可以确保商业部门的可持续发展。废物本能比从0.42到0.50不等,环境影响因子从3.5到4.55不等。环境破坏系数高达9.27。可以确定的是,与土耳其,日本,沙特阿拉伯和马来西亚相比,孟加拉国的商业部门更具可持续性,但比挪威和瑞典的可持续性差。建议使用节能照明,废物能源管理以及用电器代替燃气灶具,以减少火用损失。研究结果表明,提高火用效率可以确保商业部门的可持续发展。废物本能比从0.42到0.50不等,环境影响因子从3.5到4.55不等。环境破坏系数高达9.27。可以确定的是,与土耳其,日本,沙特阿拉伯和马来西亚相比,孟加拉国的商业部门更具可持续性,但比挪威和瑞典的可持续性差。建议使用节能照明,废物能源管理以及用电器代替燃气灶具,以减少火用损失。研究结果表明,提高火用效率可以确保商业部门的可持续发展。与土耳其,日本,沙特阿拉伯和马来西亚相比,商业部门的可持续性更高,但比挪威和瑞典的可持续性差。建议使用节能照明,废物能源管理以及用电器代替燃气灶具,以减少火用损失。研究结果表明,提高火用效率可以确保商业部门的可持续发展。与土耳其,日本,沙特阿拉伯和马来西亚相比,商业部门的可持续性更高,但比挪威和瑞典的可持续性差。建议使用节能照明,废物能源管理以及用电器代替燃气灶具,以减少火用损失。研究结果表明,提高火用效率可以确保商业部门的可持续发展。

更新日期:2019-04-25
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