Sixteen flights had been investigated for indoor air quality (IAQ) on Cathay Pacific aircraft from June 1996 to August 1997. In general, the air quality on Cathay Pacific aircraft was within relevant air quality standards because the average age of aircraft was less than 2 years. Carbon dioxide (CO2) levels on all flights measured were below the Federal Aviation Administration (FAA) standard (3...

School retrofitting should aim to not only improve its energy performance, but also maintain a good IAQ. An optimal combination of measures must be selected by considering the transient state changes outdoor and built environments. Although simulation is an effective platform evaluate measure candidates, there general lack practical methods for practitioners collect field data prepare reliable ...

Abstract Assessment of indoor environmental quality has recently moved to a combined methodology both measurements and questionnaire surveys. In this study, we have used data from the national survey Swedish housing stock, BETSI, conducted in 2007/2008, during heating season. The study included, among others, measurement selected air pollutants an extensive on occupants’ perception their dwelli...

One of the most widely available technologies to clean air in homes particulate matter less than 2.5 µm diameter (PM2.5), known have negative health impacts, are portable home purifiers (HAPs). This paper presents research which (1) explored effectiveness HAPs real-world conditions 57 three European cities; (2) examined if affect users’ perceptions indoor quality (IAQ) at home; and (3) consider...

The LAHU system has been designed, installed, and commissioned in a large university research building. This paper provides detailed information about the demonstration project, including the specific LAHU system mechanical design, optimal airflow control schedules, and measured LAHU energy and indoor air quality (IAQ) performance. The measured energy and IAQ performance are also compared with ...

A study was conducted in the US EPA Indoor Air Quality (IAQ) Research House to determine the spatial and temporal distribution of chlorpyrifos following a professional crack and crevice application in the kitchen. Following the application, measurements were made in the kitchen, den and master bedroom over 21 days. Airborne concentrations were collected using both polyurethane foam (PUF) and th...

This is the rst worst-case execution times (WCET) analysis of MPEG-decoding. Solutions for these problems are presented for scenarios (Video-on-Demand (VoD), live) which serve as examples for a variety of real-world applications. A signiicant reduction of overestimations during WCET analysis of the live scenario can be achieved by using our new two-phase decoder with built-in WCET analysis that...