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To retrofit or rebuild? A comparison of the life cycle environmental and economic implications of retrofit and replacement options for single detached dwellings.

机译:要改造还是重建?对单个独立住宅进行改造和替换的生命周期对环境和经济影响的比较。

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摘要

This study investigates alternatives to either retrofit existing buildings or replace them on the basis of life cycle environmental and economic impacts over a forty-year life. Focusing on single detached dwellings, commonly performed energy efficiency retrofits and complete replacement with a new energy efficient house are compared for a typical Toronto house. The environmental impacts considered include: global warming potential, resource consumption, solid waste generated, and atmospheric and water pollution. The capital cost expenditure and annual operating costs are represented using the simple payback method and life cycle cost method. Both retrofit activities and replacement with new energy efficient construction contribute to improving the environmental performance of the built environment. Replacement options significantly reduce the impacts of atmospheric emissions affecting global warming whereas building re-use activities are more resource efficient, reducing the amount of solid waste and environmental pollutants generated. Economically, retrofits require significantly less investment capital than replacement.
机译:这项研究根据40年生命周期中的生命周期对环境和经济的影响,研究了替代方案来改造现有建筑物或替换现有建筑物。针对典型的多伦多房屋,将重点放在单个独立住宅上,比较常用的节能改造和完全替换为新的节能房屋。所考虑的环境影响包括:全球变暖的潜力,资源消耗,产生的固体废物以及大气和水污染。资本成本支出和年度运营成本使用简单的投资回收期方法和生命周期成本方法表示。改造活动和用新的节能建筑进行替代都有助于改善建筑环境的环境性能。替代方案可显着减少大气排放对全球变暖的影响,而建筑物的再利用活动可提高资源利用效率,减少产生的固体废物和环境污染物的数量。从经济上讲,翻新所需的投资资金远少于翻新。

著录项

  • 作者

    Dong, Bonnie Ving-Wah.;

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Engineering Civil.
  • 学位 M.A.Sc.
  • 年度 2002
  • 页码 178 p.
  • 总页数 178
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;
  • 关键词

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