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Annual energy performance evaluation of thermal labyrinth ventilation system (TLVS) using measured data

Title
Annual energy performance evaluation of thermal labyrinth ventilation system (TLVS) using measured data
Authors
Song S.-Y.Song J.-H.Lim J.-H.
Ewha Authors
송승영
SCOPUS Author ID
송승영scopus
Issue Date
2012
Journal Title
7th International Cold Climate HVAC Conference
Publisher
American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE)
Indexed
SCOPUS scopus
Abstract
Ventilation is essential to maintain a healthy indoor environment. However, in summer and winter, thermal conditions of outdoor air are so poor that ventilation cannot but increase energy consumption. Thus, energy-efficient ventilation system is very important to reduce energy consumption. Thermal labyrinth ventilation system (TLVS) is a ventilation system which intakes outdoor air through an underground concrete structure shaped like a labyrinth. By the heat exchange with ground, this system can pre-cool and pre-heat the outdoor air in summer and winter, respectively. The aim of this study is to analyze the annual energy performance of thermal labyrinth ventilation system, applied to the E University building recently built in Seoul using measured data. As results, the annual maximum and average cooling effects on the outdoor air were 11.2(in July) and 3.2 Celsius, respectively, and the annual maximum and average heating effects were 24.8(in December) and 6.9 Celsius, respectively. The annual average dehumidification and humidification effects on the outdoor air were 1.8 and 0.8 g<inf>w</inf>/kg<inf>da</inf>, respectively. Taking into account the flow rates of the intake air to the air conditioners, the annual average outdoor air cooling, heating, dehumidification and humidification rates of the TLVS were estimated to be 17.5, 22.5, 15.6, 10.0 kW, respectively. © 2012 ASHRAE.
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엘텍공과대학 > 건축공학전공 > Journal papers
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