Simplified Space Conditioning in Low-Load Homes: Results from the Fresno, California, Retrofit Unoccupied Test House

Stecher, D. ; Poerschke, A.

关键词: RESIDENTIAL;    RESIDENTIAL BUILDINGS;    IBACOS;    BUILDING AMERICA;    FIELD TEST RESULTS;    COMPUTATIONAL FLUID DYNAMICS;    CFD;    ROOM-TO-ROOM UNIFORMITY;    MINI-SPLIT;    SINGLE POINT;    HVAC;    FRESNO;    CALIFORNIA;    RETROFIT UNOCCUPIED TEST HOUSE;    MODEL VALIDATION;    ACCA MANUAL RS;    ASHRAE STANDARD 55;    OCCUPANT COMFORT;    SPACE CONDITIONING;    50% BUILDING AMERICA BENCHMARK;    HOT MIXED-DRY;    LOW AIRFLOW;    Buildings;   

DOI  :  10.2172/1126310
RP-ID  :  DOE/GO-102014-4299
PID  :  OSTI ID: 1126310
Others  :  Other: KNDJ-0-40341-03

学科分类：能源（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Field testing was performed in a retrofit unoccupied test house in Fresno, California. Three air-based heating, ventilation, and air conditioning (HVAC) distribution systems -- a typical airflow ducted system to the bedrooms, a low airflow ducted system to the bedrooms, and a system with no ductwork to the bedrooms -- were evaluated during heating, cooling, and midseason conditions. The relative ability of each of the three systems was assessed with respect to relevant Air Conditioning Contractors of America (ACCA) and ASHRAE standards for house temperature uniformity and stability, respectively. Computational fluid dynamics (CFD) modeling also was performed and refined based on comparison to field test results to determine the air flow rate into the bedrooms of over-door and bottom-of-door air transfer grilles.