Performance measurements of an energy recovery ventilator (ERV) and effective ventilation strategy with ERV and hybrid desiccant system
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Recent changes in the Korean climate have led to an increase in ventilation load and building energy consumption. This study focuses on the operation of a ventilation system integrated with an Energy Recovery Ventilator (ERV) and a hybrid desiccant system in an attempt to reduce energy consumption in buildings under the Korean climate. The ERV and hybrid desiccant system are each suitable for reducing sensible and latent loads and saving building energy in the Korean climate, which is hot and humid in summer and cold and dry in winter. The energy performance of ERV was measured and analyzed. The efficiency of the ventilation system, building energy, and indoor air quality were simulated by EnergyPlus 8.7. A ventilation strategy was suggested for the Korean climate based on both measurement and simulation results. The winter ventilation strategy, which includes indoor humidity control of 30%, and constant ERV operation with frost protections (such as recirculating exhaust air and bypassing outdoor air), was shown to save 23% of heating energy. The summer ventilation strategy, which includes an ERV & hybrid desiccant system and fixed enthalpy economizer control saved 22.5% of cooling energy.
Keywordsenergy recovery ventilator (ERV) hybrid desiccant system energy savings ventilation strategy
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This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2017R1D1A1B03028205). This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20162020108210).
- AHRI (2011). AHIR Guideline V (I-P), 2011 Guildeline for Calculating the Efficiency of Energy Recovery Ventilation and Its Effect On Efficiency and Sizing Of Building HVAC Systems. Arlington, VA, USA: Air-Conditioning, Heating, and Refrigeration Institute.Google Scholar
- AHRI (2013). AHRI Standard 1060 (I-P), 2013 Standard for Performance Rating of Air-to-Air Exchangers for Energy Recovery Ventilation Equipment. Arlington, VA, USA: Air-Conditioning, Heating, and Refrigeration Institute.Google Scholar
- ASHRAE (2007). ANSI/ASHRAE Standard 90.1-2007, Energy Standard for Buildings Exept Low-rise Residential Buildings. Atlanta, GA, USA: American Society of Heating, Refrigerating and Air- Conditioning Engineers.Google Scholar
- ASHRAE (2009). ANSI/ASHRAE Standard 174-2009, Method of Test for Rating Desicant-based Dehumidifacation Equipment. Atlanta, GA, USA: American Society of Heating, Refrigerating and Air- Conditioning Engineers.Google Scholar
- ASHRAE (2011). ASHRAE Handbook—HVAC Applications. Atlanta, GA, USA: American Society of Heating, Refrigerating and Air-Conditioning Engineers.Google Scholar
- ASHRAE (2012). ASHRAE Handbook—HVAC Systems and Equipment. Atlanta, GA, USA: American Society of Heating, Refrigerating and Air-Conditioning Engineers.Google Scholar
- ASHRAE (2013). ANSI/ASHRAE Standard 84-2013, Method of testing air-to-air heat/energy exchangers. Atlanta, GA, USA: American Society of Heating, Refrigerating and Air-Conditioning Engineers.Google Scholar
- Kim KH, Yee JJ (2008). A study on operating method by energy evaluation and performance evaluation of heat recovery ventilator accordiong to outdoor conditions. International Journal of Air-Conditioning and Refrigeration, 20(1): 57–64. (in Korean)Google Scholar
- Kim SS, Yee JJ, Lee YG (2008). Performance evaluation of an energy recovery ventilator with various outdoor climate conditions. Journal of the Architectural Institute of Korea, 24(8): 261–268. (in Korean)Google Scholar
- Kim WJ, Jeong JW (2017). Determination of preheat coil capacity in an Energy Recovery Ventilator considering the differences in sensible and latent effectiveness values. Journal of Korean Institute of Architectural Sustainable Environment and Buildings Systems, 11(3): 197–202. (in Korean)Google Scholar
- Korea Forest Service (2018). 2017 Statistical Yearbook of Forest Fire. Daejeon, Republic of Korea. (in Korean)Google Scholar
- Korea Meteorological Administration (2015). Available at https://doi.org/data.kma.go.kr. Seoul, Republic of Korea. Accessed 18 Jun 2018.
- Korea Meteorological Administration (2018). 2017 Abnormal Climate Report. Seoul, Republic of Korea. (in Korean)Google Scholar
- Ministry of Environment (2018). Indoor Air Quality Control act. Sejong, Republic of Korea. (in Korean)Google Scholar
- Office for Government Policy Coordination Prime Minister’s Secretariat (2010). Frame Act on Low Carbon, Green Growth. Sejong, Republic of Korea. (in Korean)Google Scholar
- Republic of Korea (2016). Republic of Korea First NDC. United Nations Framework Convention on Climate Change Secretariat. Available at https://doi.org/www4.unfccc.int/ndcregistry/pages/Party.aspx?party=KOR. Accessed 18 Jun 2018.Google Scholar
- U.S. Department of Energy (2008). M&V Guidelines: Measurement and Verification for Federal Energy Projects Version 3.0. United States Department of Energy, Washington, DC. U.S.Google Scholar
- Department of Energy (2016). EnergyPlus Version 8.7 Documentation Input Output Reference. United States Department of Energy, Washington, DC.Google Scholar