• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.35 no.11
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• pp.15-20
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• 2006

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.20 no.1
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• pp.57-64
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• 2008

Recently, regulation of ventilator installation and its details has been revised and the establishment of heat recovery ventilator in newly built apartments has been obligated. This study was done to offer the method of operation and design of heat recovery ventilator to save energy by measuring its efficiency and comparing with the results of experiment. This paper confirmed that it is desirable to operate heat recovery ventilator by using "by-pass mode" within $60{\sim}80%$ scope of the difference indoor absolute humidity in spring and autumn and outdoor absolute humidity and heat recovery ventilator of energy saving effect is better than constant air volume system.

• Land and Housing Review
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• v.6 no.4
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• pp.215-220
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• 2015

The purpose of this study was to comparative analyses of energy performance in apartment houses adopted window frame-type natural ventilation, under-floor air distribution ventilation and heat recovery ventilation. As the object of energy simulation, the three type ventilation system with area of $84m^2$ was selected in apartment house. As a result, when the ECO2 simulation was performed, the 1st requirement quantity per annual were $159.9kWh/m^2yr$(CASE1, Natural Ventilation), $179.7kWh/m^2yr$(CASE2, Under-floor Air Distribution Ventilation) and $161.0kWh/m^2yr$(CASE3, Heat Recovery Ventilation).

• Proceedings of the SAREK Conference
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• 2007.06a
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• pp.128-128
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• 2007

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.25 no.10
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• pp.529-533
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• 2013

Heat-recovery ventilators are being adopted in most newly built apartment houses for energy reduction and indoor environment improvement. In winter, however, the dew condensation resulting from the difference between the indoor and outdoor temperatures may reduce the ventilator's performance and threaten the health of indoor residents. This study analyzes the occurrence of dew condensation according to the ventilator's operational conditions and the changes of temperature and products. The experimental results show that condensations is formed at $26^{\circ}C$ and 60%R.H, which is an unfavorable climatic condition, and when the damper is not closed tightly. Therefore it is important to ensure damper performance to prevent back flow.

• 주택과사람들
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• s.195
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• pp.80-81
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• 2006

충무로와 광장동에 새롭게 들어서는 GS자이는 쾌적한 생활을 위한 쓰레기 자동수거 시스템을 비롯해, 전열 교환 환기 시스템, 중앙집진식 진공청소 시스템 등을 갖췄다. 최첨단 주거 환경을 자랑하는 GS자이의 진면목을 살펴보자.

• Proceedings of the SAREK Conference
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• 2005.06a
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• pp.14-14
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• 2005

• Proceedings of the SAREK Conference
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• 2004.06a
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• pp.121-121
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• 2004

• Proceedings of the SAREK Conference
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• 2009.06a
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• pp.679-684
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• 2009

ERV system has installed in almost newly constructed residential building in Korea. Heat recovery features of ERV can be possible to decrease the heating and cooling load caused by ventilation. However, in case of the outdoor condition is favorable to control the indoor air, the heat recovery function of ERV does more harm than good in term of cooling load. In this study, the ERV with economizer cycle control for residential building is suggested and the performance of the suggested system will be analyzed using TRNSYS.

• Proceedings of the SAREK Conference
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• 2009.06a
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• pp.695-700
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• 2009

Maintaining an IAQ with fresh in school building is very important because the good IAQ can be possible to improve the academic performance. Since school buildings are very dense and require a lot of fresh air, the need for ERV(Energy Recovery Ventilator) has become obvious. While opening a window does provide ventilation, the building's heat and humidity will then be lost in the winter and gained in the summer, both of which are undesirable for the indoor climate and for energy efficiency. ERV technology offers an optimal solution: fresh air, better climate control and energy efficiency. However, when the outdoor air condition is favorable to control the indoor environment such as spring and autum in Korea, heat exchange in ERV would rather increase the cooling load than diminish. Economizer cycle control which using the outdoor air in controlling the indoor thermal environment has many benefit in terms of energy saving and IAQ control. In this study, the ERV with economizer cycle control will be suggested. And then the system control characteristics and energy saving effect will be analyzed through the TRSNSYS Simulation.