Effect of simulation methodology on variable efficiency of bi-directional heat recovery ventilator

Younhee Choi, Beungyong Park, Doosam Song

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication16th International Conference of the International Building Performance Simulation Association, Building Simulation 2019
EditorsVincenzo Corrado, Enrico Fabrizio, Andrea Gasparella, Francesco Patuzzi
PublisherInternational Building Performance Simulation Association
Pages1318-1325
Number of pages8
ISBN (Electronic)9781713809418
Publication statusPublished - 2019
Externally publishedYes
Event16th International Conference of the International Building Performance Simulation Association, Building Simulation 2019 - Rome, Italy
Duration: Sep 2 2019Sep 4 2019

Publication series

NameBuilding Simulation Conference Proceedings
Volume2
ISSN (Print)2522-2708

Conference

Conference16th International Conference of the International Building Performance Simulation Association, Building Simulation 2019
Country/TerritoryItaly
CityRome
Period9/2/199/4/19

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Architecture
  • Modelling and Simulation
  • Computer Science Applications

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