High-Performance Ducts in Hot-Dry Climates

Hoeschele, Marc¹  Chitwood, Rick¹  German, Alea¹  Weitzel, Elizabeth¹ 

[1] National Renewable Energy Laboratory (NREL), Golden, CO (United States)

关键词: residential;    Residential Buildings;    ARBI;    Building America;    ducts in conditioned space;    DCS;    Zero Net Energy;    ZNE;    Zero Energy Ready New Homes;    ZERH;    High Performance Attic;    BEopt;    California;    Title 24;    HVAC;    High Performance Distribution System;   

DOI  :  10.2172/1215305
RP-ID  :  NREL/SR--5500-64366
RP-ID  :  DOE/GO--102015-4695
PID  :  OSTI ID: 1215305

学科分类：能源（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Duct thermal losses and air leakage have long been recognized as prime culprits in the degradation of heating, ventilating, and air-conditioning (HVAC) system efficiency. Both the U.S. Department of Energy???s Zero Energy Ready Home program and California???s proposed 2016 Title 24 Residential Energy Efficiency Standards require that ducts be installed within conditioned space or that other measures be taken to provide similar improvements in delivery effectiveness (DE). Pacific Gas & Electric Company commissioned a study to evaluate ducts in conditioned space and high-performance attics (HPAs) in support of the proposed codes and standards enhancements included in California???s 2016 Title 24 Residential Energy Efficiency Standards. The goal was to work with a select group of builders to design and install high-performance duct (HPD) systems, such as ducts in conditioned space (DCS), in one or more of their homes and to obtain test data to verify the improvement in DE compared to standard practice. Davis Energy Group (DEG) helped select the builders and led a team that provided information about HPD strategies to them. DEG also observed the construction process, completed testing, and collected cost data.