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Complex assessment of reconstruction works on an institutional building: A case study
Journal of Cleaner Production ( IF 11.1 ) Pub Date : 2018-08-20 , DOI: 10.1016/j.jclepro.2018.08.197
Jan Fořt , Pavel Beran , Zbyšek Pavlík , Robert Černý

Energy demands of current buildings present an important problem for building designers and engineers. However, the necessity to retrofit building envelopes and achieve a better thermal performance is substantially limited by the economic viability. Despite of the environmental benefits accompanied with enhanced thermal stability, a complex evaluation of the impact of reconstruction works from various perspectives is still needed. In this paper, a quantification of physical, social, economic, and environmental benefits resulting from the application of exterior thermal insulation system to an institutional building is presented. The temperature profiles in the wall cross-section are used for the assessment of the effect of expanded polystyrene boards. The annual energy consumption and carbon emission production is found to decrease by 46% as the result of better thermal performance. The improved social comfort is confirmed by the evaluation of predicted mean vote characterizing the average heat sensation of building occupants. The carbon payback of 3.24 years refers to low initial environmental burden in proportion to obtained energy savings. However, full investments recovery rate varying from 43 to 60 years in dependence on applied economic scenarios reaches almost the lifetime of used materials, which presents a substantial barrier despite of the discounted cost savings of 180,000 Euros during the 60-year lifespan.



中文翻译:

机构大楼重建工作的综合评估:一个案例研究

当前建筑物的能量需求对于建筑物设计师和工程师而言是一个重要的问题。然而,经济可行性极大地限制了改造建筑围护结构并获得更好的热性能的必要性。尽管具有环境效益并具有增强的热稳定性,但仍需要从各个角度对重建工作的影响进行复杂的评估。在本文中,提出了将外部隔热系统应用于机构建筑所产生的物理,社会,经济和环境效益的量化方法。壁截面中的温度曲线用于评估膨胀聚苯乙烯板的效果。由于更好的热性能,发现年能耗和碳排放量减少了46%。改善的社会舒适度通过评估预测的平均投票来确定,该投票表征了建筑物居住者的平均热感。3.24年的碳回收期是指与获得的能源节省成比例的低初始环境负担。但是,根据应用经济情况的不同,全部投资回收率从43到60年不等,几乎达到了废旧材料的使用寿命,尽管在60年的使用寿命中节省了18万欧元的成本,但这仍然构成了很大的障碍。改善的社会舒适度通过评估预测的平均投票来确定,该投票表征了建筑物居住者的平均热感。3.24年的碳回收期是指与获得的能源节省成比例的较低的初始环境负担。但是,根据应用经济情况的不同,全部投资回收率从43到60年不等,几乎达到了废旧材料的使用寿命,尽管在60年的使用寿命中节省了18万欧元的成本,但这仍然构成了很大的障碍。改善的社会舒适度通过评估预测的平均投票来确定,该投票表征了建筑物居住者的平均热感。3.24年的碳回收期是指与获得的能源节省成比例的较低的初始环境负担。但是,根据应用经济情况的不同,全部投资回收率从43到60年不等,几乎达到了废旧材料的使用寿命,尽管在60年的使用寿命中节省了18万欧元的成本,但这仍然构成了很大的障碍。

更新日期:2018-08-20
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