Simplified air change effectiveness modeling

Technical Report · Mon Jun 01 04:00:00 EDT 1992

DOI:https://doi.org/10.2172/5170712· OSTI ID:5170712

Rock, B A; Anderson, R ^[1]; Brandemuehl, M J ^[2]

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1. National Renewable Energy Lab., Golden, CO (United States)
2. Colorado Univ., Boulder, CO (United States)

This paper describes recent progress in developing practical air change effectiveness modeling techniques for the design and analysis of air diffusion in occupied rooms. The ultimate goal of this continuing work is to develop a simple and reliable method for determining heating, ventilating, and air-conditioning (HVAC) system compliance with ventilation standards. In the current work, simplified two-region models of rooms are used with six occupancy patterns to find the air change effectiveness. A new measure, the apparent ACH effectiveness, yields the relative ventilation performance of an air diffusion system. This measure can be used for the prediction or evaluation of outside air delivery to the occupants. The required outside air can be greater or less than that specified by ventilation standards such as ASHRAE Standard 62-89.

• Research Organization: National Renewable Energy Lab., Golden, CO (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-83CH10093
• OSTI ID: 5170712
• Report Number(s): NREL/TP-432-4737; ON: DE92010577
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
AIR FLOW
AIR POLLUTION
BUILDINGS
COMPLIANCE
EFFICIENCY
FLOW MODELS
FLUID FLOW
GAS FLOW
INDOOR AIR POLLUTION
MATHEMATICAL MODELS
POLLUTION
SPACE HVAC SYSTEMS
STANDARDS
VENTILATION