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Title: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet)

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.
Publication Date:
OSTI Identifier:
1122311
Report Number(s):
DOE/GO-102014-4300
KNDJ-0-40341-00
DOE Contract Number:
AC36-08GO28308
Resource Type:
Technical Report
Resource Relation:
Related Information: Building America Case Study: Whole-House Solutions for Existing Homes, Building Technologies Office (BTO)
Research Org:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy Building Technologies Office
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION 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% BA BENCHMARK; HOT MIXED-DRY; LOW AIRFLOW; SIMPLIFIED SPACE CONDITIONING