Energy performance and installation considerations for retrofitted exterior masonry wall insulation. Draft

摘要

A field test involving eight single-family houses was performed during the summer of 1991 in Scottsdale, Arizona to evaluate the potential of reducing air-conditioning electricity consumption and demand by insulating their exterior masonry walls. The installation technique. Total per house costs to perform the installations ranged from $3610 to $4550. The average annual savings was estimated to be 491 kWh, or 9% of pre-retrofit consumption. Peak demands with and without insulation on the hottest day of an average weather year for Phoenix were estimated to be 4.26 and 3.61 kill, for a demand reduction of 0.65 kW (15%). We conclude that inclusion of exterior masonry wall insulation in conservation programs aimed at reducing air-conditioning electricity consumption and peak demand should be pursued in hot, dry climates.