Modeling the Applicability of a Displacement Ventilation System

Edgar C. Ambos, Evan Neil V. Ambos and Lanndon A. Ocampo
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Edgar C. Ambos: Cebu Technological University, Philippines
Evan Neil V. Ambos: Cebu Technological University, Philippines
Lanndon A. Ocampo: Cebu Technological University, Philippines

International Journal of Manufacturing, Materials, and Mechanical Engineering (IJMMME), 2021, vol. 11, issue 1, 63-89

Abstract: Due to its significant role in improving indoor air quality, displacement ventilation system is widely adopted in current literature. This paper proposes a displacement ventilation system for room conditions with ceilings that are relatively low, internal heat load could be high, walls could be sunlit, and occupants doing the low physical activity. These conditions are prevalent in the Philippines, being a tropical country. Input parameters to the design process such as heat load, the height of the ceiling, comfort, and indoor air quality requirements were generated, and the main output parameters are the stratification height and ventilation airflow rate. To demonstrate the proposed displacement ventilation system, four cases were generated. Results show that the ventilation airflow rates obtained from the four cases were greater than the minimum outdoor air requirements for health in conference rooms and large assembly areas which are 17.5 and 3.5 liters/sec*person respectively, for smoking and no smoking rooms.

Date: 2021
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