Selecting Ventilation Fan Capacity for University Classroom Based on Empirical Data
Journal Title: Environmental Science and Sustainable Development - Year 2019, Vol 4, Issue 1
Abstract
This paper presents a guideline for selecting ventilation fan based on empirical data. The research project was undertaken in a university classroom of 64 square meters. In a two-hour experiment, carbon dioxide levels exceeded 1600 ppm when not using any ventilation system. Subsequently, the carbon dioxide levels increased approximately at a rate of 11.49 ppm per minute for 15 students sitting in the room. The carbon dioxide levels within the tested classroom exceeded 1000 ppm after the 42nd minute. When students left the room, CO2 decreased approximately at a rate of 3.67 ppm per minute. Straight-line functions were used to model the increasing and decreasing behaviour of CO2 concentration in the classroom. An example of how to select an appropriate ventilation fan capacity is shown as an approximation guideline.
Authors and Affiliations
Wannawit Taemthong,
Keywords
Related Articles
- EP ID EP705099
- DOI 10.21625/essd.v4i1.487
- Views 76
- Downloads 0
The Courtyard House: Can a Sustainable Future Learn from a Context Relevant Past
This paper looks at the courtyard house as a traditional urban dwellings of yesteryears with a view to explore its potential in informing the housing developments of the future. In order to address the question, the pa...
Identification, Dimension and Evaluation of Catalytic Projects in Tehran, Iran
Since the 1980s, a wide range of physical and non-physical interventions, including megaprojects and flagships to small-scale projects and temporary usage, are prescribed as catalysts for urban regeneration. The strategy...
Typology and Solar Gain Analysis: Vernacular Courtyard Houses of Tabriz, Iran
The study presents the results of typological analysis and simulation modeling analysis of traditional courtyard residential houses in the cold semi-arid climate of Iran. The purpose of the research has been to analyze a...
Vision and Methodology to Support Sustainable Architecture through Building Technology in the Digital Era
The last decades have witnessed countless, progressive, and rapid advances in the field of building technology, which has a strong impact on the construction industry. Consequently, employing these techniques to support...
Date Palm Rachis as a Local and Renewable Structural Material for Rural Communities in Egypt
Date Palm Rachis has been widely used in sheathing of houses in the rural communities in Egypt and the Middle East, as a local and cheap material that naturally resists direct solar radiation and humidity. Lately, resear...