TY - GEN
T1 - Thermal performance evaluation of a small duct high velocity system in NIST's net-zero energy residential test facility
AU - Nguyen, Khiem
AU - Kim, Hyojin
AU - Ng, Lisa
AU - Payne, Vance
N1 - Publisher Copyright:
© 2018 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018. All rights reserved.
PY - 2018
Y1 - 2018
N2 - This study aims to evaluate the performance of a Small Duct High Velocity (SDHV) heat pump relative to a Conventionally-Ducted Heat Pump (CDHP) using one-year of detailed data from the two-story Net-Zero Energy Residential Test Facility (NZERTF) on the campus of the National Institute of Standards and Technology (NIST). The NZERTF is a single-family home that serves as a laboratory with simulated occupancy and scheduled internal loads. During the analysis period, the SDHV and the CDHP were alternately operated every other week in order to compare the two systems under similar weather conditions. The preliminary analysis indicated that the SDHV system might not always provide thermal comfort comparable with the CDHP. Potential reasons are lower supply airflow rates from the SDHV during the heating season in this low-load house, and a tight thermostat deadband range for the CDHP, which resulted in comparatively more frequent on-cycles.
AB - This study aims to evaluate the performance of a Small Duct High Velocity (SDHV) heat pump relative to a Conventionally-Ducted Heat Pump (CDHP) using one-year of detailed data from the two-story Net-Zero Energy Residential Test Facility (NZERTF) on the campus of the National Institute of Standards and Technology (NIST). The NZERTF is a single-family home that serves as a laboratory with simulated occupancy and scheduled internal loads. During the analysis period, the SDHV and the CDHP were alternately operated every other week in order to compare the two systems under similar weather conditions. The preliminary analysis indicated that the SDHV system might not always provide thermal comfort comparable with the CDHP. Potential reasons are lower supply airflow rates from the SDHV during the heating season in this low-load house, and a tight thermostat deadband range for the CDHP, which resulted in comparatively more frequent on-cycles.
KW - IEQ
KW - Low-energy building technology
KW - Measurement and Verification
KW - Thermal comfort
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M3 - Conference contribution
AN - SCOPUS:85105648886
T3 - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
BT - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
PB - International Society of Indoor Air Quality and Climate
T2 - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
Y2 - 22 July 2018 through 27 July 2018
ER -