TY - GEN
T1 - Effect of simulation methodology on variable efficiency of bi-directional heat recovery ventilator
AU - Choi, Younhee
AU - Park, Beungyong
AU - Song, Doosam
N1 - Publisher Copyright:
© 2019 by International Building Performance Simulation Association (IBPSA) All rights reserved.
PY - 2019
Y1 - 2019
N2 - Recently, Energy Recovery Ventilator (ERV) has been installed to secure energy saving and Indoor Air Quality (IAQ) in multi-residential building. A lot of effort has been devoted to the development of various types of ERV systems for the purpose of improving heat exchange efficiency, preventing condensation problems in the elements, and increasing usability etc. Among various ERV systems, a ventilation system using a new concept called Alternating Ventilation (AC ventilation) such as Bidirectional Heat Recovery Ventilator (BdHRV) has been developed and broadly installed. The performance of a heat (sensitive / latent / enthalpy) recovery ventilators are defined as a fixed value by measurement under specified indoor and outdoor conditions, and this value used as input data for the energy simulation. However, the heat exchange efficiency of Bi-directional Heat Recovery Ventilator (BdHRV) in which air supply and exhaust process are repeated over a period of time and heat is accumulated in the exhaust mode through the heat storage element and heat is released in the supply process is not constant but varies with time. In this study, the transient heat exchange efficiency of BdHRV was measured with test chamber measurement. The simulation method considering the transient heat exchange characteristics of BdHRV has been proposed. The effect of ventilation with BdHRV on heating/cooling energy usage are analyzed.
AB - Recently, Energy Recovery Ventilator (ERV) has been installed to secure energy saving and Indoor Air Quality (IAQ) in multi-residential building. A lot of effort has been devoted to the development of various types of ERV systems for the purpose of improving heat exchange efficiency, preventing condensation problems in the elements, and increasing usability etc. Among various ERV systems, a ventilation system using a new concept called Alternating Ventilation (AC ventilation) such as Bidirectional Heat Recovery Ventilator (BdHRV) has been developed and broadly installed. The performance of a heat (sensitive / latent / enthalpy) recovery ventilators are defined as a fixed value by measurement under specified indoor and outdoor conditions, and this value used as input data for the energy simulation. However, the heat exchange efficiency of Bi-directional Heat Recovery Ventilator (BdHRV) in which air supply and exhaust process are repeated over a period of time and heat is accumulated in the exhaust mode through the heat storage element and heat is released in the supply process is not constant but varies with time. In this study, the transient heat exchange efficiency of BdHRV was measured with test chamber measurement. The simulation method considering the transient heat exchange characteristics of BdHRV has been proposed. The effect of ventilation with BdHRV on heating/cooling energy usage are analyzed.
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M3 - Conference contribution
AN - SCOPUS:85107483565
T3 - Building Simulation Conference Proceedings
SP - 1318
EP - 1325
BT - 16th International Conference of the International Building Performance Simulation Association, Building Simulation 2019
A2 - Corrado, Vincenzo
A2 - Fabrizio, Enrico
A2 - Gasparella, Andrea
A2 - Patuzzi, Francesco
PB - International Building Performance Simulation Association
T2 - 16th International Conference of the International Building Performance Simulation Association, Building Simulation 2019
Y2 - 2 September 2019 through 4 September 2019
ER -