Predicting the Performance of Gaseous Air Cleaners: Measurements and Model Simulations from a Residential-Scale Pilot Study

摘要

As part of an ongoing effort to evaluate the predictive capability of indoor air quality (IAQ) simulation tools, the National Institute of Standards and Technology (NIST) is evaluating the ability of the multi-zone IAQ model CONTAM to predict the effectiveness of different control strategies to reduce indoor concentrations of particle and gaseous contaminants. This report describes an evaluation of gaseous air cleaners and includes a literature review of gaseous air cleaning, development of an in situ air cleaner test method, determination of the performance of two gaseous air cleaners in a single room test house, and validation of CONTAM's ability to predict gaseous air cleaner performance. The literature review provides a summary of the available gaseous air cleaner technologies, including carbon absorption, chemisorption, ozonation, and photo catalytic oxidation. Lack of gaseous air cleaner field testing protocols required the development of a test method using semi-real-time measurements and mass balance model. These test methods were used in a field study that involved a total of 23 experiments to evaluate the effectiveness of a portable carbon absorption air cleaner and an in-duct chemisorption air cleaner to remove toluene from a single room test house for a range of environmental and operating conditions.