Design parametric analysis of low-energy residential buildings on the way to a defined cost-optimal capacity point

Abstract

One of the most energy-saving design aspects is the reliability of the envelopes, which helps to monitor the temperature of the building and thus reduces dependence on mechanical heating, ventilation, and air conditioning systems for heating or cooling the building. This study designs home retrofits and new construction of single-family buildings by assessing parametric sweeps, building design, and cost-based energy savings building analysis. The goal of this research is to determine the most cost-effective paths for a single-family building. For building design, we chose nine capacity points with the lowest cost. BEopt offers comprehensive building-based assessments, including scale, occupancy, design, location, vintage, and utility prices. Equipment and discrete envelope options that reflect realistic building practices and materials are evaluated. The impact of carbon emission reductions is calculated on an annual basis. The proposed building's energy savings are calculated concerning a B10 benchmark. The parametric analysis results were compared to the B10 Benchmark, and the proposed building energy consumption of Point 4 (12.4%), Point 6 (13%), Point 8 (7.4%), and Point 9 (8.2%) was lower than the B10 Benchmark. Point 6 is our proposed design's most cost-effective capacity point. Our proposed method allows us to analyze residential building structures and define cost-optimal performance packages at different energy consumption rates in all single-family buildings. Users can specify options to be considered in the optimization by selecting predefined options from various categories.

Keywords

• Building parametric analysis
• Energy saving
• Cost-optimal capacity points
• CO2 reduction
• Design residential buildings