Paper Conference

Proceedings of ASim Conference 2014: 2nd Asia conference of IBPSA-China, Japan, Korea

     

A study on the Determination of Minimum Airflow Setpoint of Single Duct VAV Terminal Units

Hyo-Jun Kim, Young-Hum Cho

Abstract: The objective of this study was evaluated a control method for the minimum air flow rate of VAV terminal unit. The minimum air flow rate of the VAV terminal unit is the key factor affecting the thermal comfort, indoor air quality (IAQ), stratification and energy consumption, depending on the operating mode of the VAV system. Therefore, selecting the proper minimum air flow is very important. In this study, building simulation was conducted to evaluate the indoor thermal comfort, stratification, IAQ and energy consumption according to the minimum air flow rate of the VAV terminal units. CASE 1 is the minimum air flow that considers sensible load. CASE 2 is the minimum air flow that considers stratification. CASE 3 is the minimum air flow that considers the IAQ. The result of the simulation is that CASE2 satisfies all the conditions of indoor thermal comfort, IAQ and without stratification.
Keywords: Variable air volume system, Minimum airflow, Thermal comfort, Indoor air quality, Energy consumption
Pages: 894 - 899
Paper:
asim2014_201_d6-29-379