Measured Performance of Residential Dehumidifiers Under Cyclic Operation

Winkler, J.¹  Christensen, D.¹  Tomerlin, J.¹ 

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

关键词: dehumidifier;    residential;    whole-house;    standalone;    part load;    cycling;    cyclic;    steady state;    performance map;    performance curve;    efficiency;    Building America program;    simulation tools;    National Renewable Energy Laboratory's (NREL) Advanced Heating;    Ventilating and Air Conditioning (HVAC) Systems Laboratory;    residential;    Residential Buildings;    NREL;    Building America;   

DOI  :  10.2172/1221066
RP-ID  :  NREL/TP--5500-61076
PID  :  OSTI ID: 1221066
Others  :  Other: 6665

美国|英语

来源: SciTech Connect

【 摘 要 】

Residential construction practices are progressing toward higher levels of energy efficiency. A proven strategy to save energy is to simultaneously increase building insulation levels and reduce outdoor air infiltration. Overall, this strategy results in a shift in the mix of latent and sensible space conditioning loads, requiring proportionally more moisture to be removed compared to standard homes. In this project, researchers at the National Renewable Energy Laboratory (NREL) developed steady state performance maps to predict dehumidifier performance at a variety of indoor conditions. However, installed heating, ventilating, and air-conditioning (HVAC) equipment rarely operates at steady state. Part load performance testing of residential dehumidifiers is not mandated by current test standards. Therefore, the team tested the part load performance of four residential dehumidifiers in NREL???s Advanced HVAC Systems Laboratory . The part load efficiency of each dehumidifier was measured under 13 cycling scenarios, and combined with NREL field data to develop part load fraction (PLF) performance curves under realistic cycling scenarios.