Microcontroller-based carbon dioxide (CO2) level measurement for indoor air quality monitoring.

Date

2013

Degree

Bachelor of Science in Applied Physics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Roxas-Villanueva, Ranzivelle Marianne

Abstract

Studies have shown that indoor air quality (IAQ) affects the performance of occupants in a room. The primary method for measuring and evaluating IAQ involves measurement of CO₂ level using heating, ventilation, and air conditioning (HVAC). However, these systems are very costly. In this study, a cheap CO₂ sensing system was constructed and calibrated using a gas chromatographer at the International Rice Research Institute (IRRI). The constructed CO₂ sensing system was controlled by an Aceduino Microcontroller and includes Carbon dioxide MG811 sensor. The CO₂ level in a room of an apartment in Los Baños, Laguna was monitored for two days. The gathered measurements were saved in a text file with the use of a Graphical User Interface which was created using Visual Basic. Results show that the change in the CO₂ concentration can be utilized to determine the number and the state of occupants in a room. Also, the size of the room and the quality of ventilation of the room are factors to be considered to determine the implications of the measured Carbon dioxide level. PACS: 07.88+y [Instruments for environmental pollution measurements, Carbon dioxide, electronics, etc.)]

Language

English

Location

UPLB Main Library Special Collections Section

Call Number

LG 993.5 2013 P51 M37

Document Type

Thesis

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