Using non-invasive MEMS pressure sensors for measuring building envelope air leakage

Micro-electromechanical systems (MEMS)-based sensors have seen significant improvements in accuracy and cost over the past several years, due to need for altitude sensing unmanned aerial vehicles wearable technologies, absolute pressure shown most dramatic improvements. This paper investigates applications of MEMS commercial buildings, including pairing two determine differential pressures between different locations around buildings. Differential measurements are commonly made buildings a number applications, static variable-speed supply fan control, air balancing hospitals, envelope duct leakage testing. focuses specifically on air-leakage testing these sensors. The use continuous addition one-time non-intrusive outdoor airflow rooftop packaged units is investigated. A comparison with standardized indicated that pressure-sensors were able estimate within 3–16% test result. In addition, magnitude stability differences can be resolved also investigated laboratory field. Results show effectively used low rise units.