Simulation Based Lifecycle Costs of Inground Insulation for Heated Concrete Slabs

摘要

This case study investigated the costs and savings of in ground concrete insulation systems for a home situated in the cooler Australian climates of Canberra, Hobart and Thredbo. EnergyPlus V7.2 was used to determine the annual heating energy requirements for various combinations of insulation systems and soil thermal conductivity values. The costs savings attributed to the in ground insulation were life cycle over 25 years using low, median and high heating energy cost scenarios. The results indicated that in most scenarios the concrete insulation as stipulated by the Building Code of Australia (BCA) is not the most cost effective solution.