Analysis of a Building Energy Efficiency Certification System in Korea

Park, Duk Joon; Yu, Ki Hyung; Yoon, Young Soon; Kim, Kee Han; Kim, Sun Sook

doi:10.3390/su71215804

Cited by 41 publications

(31 citation statements)

References 16 publications

(22 reference statements)

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“…[50], which was based on the data from the Independent Electricity System Operator (IESO) [51], a non-for-profit corporate entity responsible for promoting transparency of electricity generation for the Ontario power grid. The PEF of electricity in Korea is 2.75 [52]. Although the primary energy from the grid varies between countries depending on the generating mix in any given year, the average PEF value of Korea and Ontario, 2.6 (an overall efficiency of 39%), is used both for Incheon and Ottawa in the primary energy calculations.…”

Section: Energy Analysis Methodologymentioning

confidence: 99%

Investigation of Energy and Environmental Potentials of a Renewable Trigeneration System in a Residential Application

et al. 2016

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Micro polygeneration utilizing renewable energy is a suitable approach to reduce energy consumption and carbon emission by offering high-efficiency performance, offsetting the need for centrally-generated grid electricity and avoiding transmission/distribution losses associated with it. This paper investigates the energy and environmental potential of a renewable trigeneration system in a residential application under Incheon (Korea) and Ottawa (Canada) weather conditions. The trigeneration system consists of a ground-to-air heat exchanger (GAHX), photovoltaic thermal (PVT) panels and an air-to-water heat pump (AWHP). The study is performed by simulations in TRNSYS (Version 17.02) environment. The performance of the trigeneration system is compared to a reference conventional system that utilizes a boiler for space and domestic hot water heating and a chiller for space cooling. Simulation results showed substantial annual primary energy savings from the renewable trigeneration system in comparison to the reference system-45% for Incheon and 42% for Ottawa. The CO 2eq emission reduction from the renewable trigeneration system is also significant, standing at 43% for Incheon and 82% for Ottawa. Furthermore, trigeneration systems' capability to generate electricity and thermal energy at the point of use is considered as an attractive option for inclusion in the future smart energy network applications.

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Section: Energy Analysis Methodologymentioning

confidence: 99%

Investigation of Energy and Environmental Potentials of a Renewable Trigeneration System in a Residential Application

et al. 2016

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“…Additionally, according to the amendment of the Green Building Establishment Support Act [31] in 2013, the Environmental-friendly Building Certification System and the Housing Performance Grading Certification System are integrated and implemented as G-SEED [26][27][28][29][30]. Among these, the association by evaluation item with the apartment housing section of G-SEED most similar to the long-life housing certification system was reviewed (Table 3).…”

Section: Comparison Of Association Between Detailed Evaluation Items mentioning

confidence: 99%

“…Various housing-related policies have been implemented since the 2000s, starting with the establishment and abolition of the excellent housing material recognition system in 1990. Of note, the long-life housing certification system was formerly the Special Exception in Preparation for Remodeling and the guideline for sustainable type apartment housing [26][27][28][29][30]. …”

Section: History Of Certification System Related To Apartment Houses mentioning

confidence: 99%

Analysis of the Current Scoring Distribution by Evaluation Criteria in Korean Long-Life Housing Certification System Cases

Kim

Hwang

2017

Sustainability

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Peoples lifestyles are diversifying due to an increase in the types of residents housing and family structures. The ratio of apartment housing in Korea was 59.9% (9806 households) in 2015, and this type accounts for the largest ratio among all housing types. However, the life of the physical housing is approximately 30-40 years, which is relatively shorter in comparison to that of overseas houses. Therefore, the certification system for long-life housing, which had longer social and physical service life, was newly established in 24 December 2014. However, all apartment houses only acquired the normal grade (grade 4). The purpose of this study is to investigate all long-life housing certification cases and analyze the acquired score and status of each evaluation item. The total number of certification cases was 283, and the data analysis and FGI (Focus Group Interview) investigation method were used as the methods of study. As a result of analysis and summary, 173 cases (61.13%) received 50 points and 106 cases (37.46%) received 51 points. All these cases were considered normal grade. The result of this study is as follows. First, a system to maintain the long-life housing certification system operation agency is necessary. Second, the reason for an item with no score was the evasion by construction companies due to an increase in both the construction expense and sale price. Therefore, various incentive plans are necessary and should be executed accordingly. Third, it is necessary to improve the detailed evaluation standards of the certification system and reexamine its scoring system. Long-life housing is a housing type in preparation for changes in the residential environment in future. The significance of this study is that the content shall be utilized as preliminary data for improving the system through the analysis of evaluation items in the certification system.

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“…The components of the entire HVAC system are as follows: a boiler, low temperature chiller, high temperature chiller, fan, FFU, and pump. Additionally, for comparing the energy consumption of HVAC systems, the primary energy conversion factors of electricity and gas were adopted as 2.75 and 1.1 respectively [37].…”

Section: Comparison Of the Case Loadsmentioning

confidence: 99%

Energy-Saving Benefits of Adiabatic Humidification in the Air Conditioning Systems of Semiconductor Cleanrooms

Shin

Kim

et al. 2017

Energies

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This paper aimed to evaluate the applicability of adiabatic humidification in the heating, ventilation, and air conditioning (HVAC) systems of semiconductor cleanrooms. Accurate temperature and humidity control are essential in semiconductor cleanrooms and high energy consumption steam humidification is commonly used. Therefore, we propose an adiabatic humidification system employing a pressurized water atomizer to reduce the energy consumption. The annual energy consumption of three different HVAC systems were analyzed to evaluate the applicability of adiabatic humidification. The studied cases were as follows: (1) CASE 1: a make-up air unit (MAU) with a steam humidifier, a dry cooling coil (DCC), and a fan filter unit (FFU); (2) CASE 2: a MAU with the pressurized water atomizer, a DCC, and a FFU; and (3) CASE 3: a MAU, a DCC, and a FFU, and the pressurized water atomizer installed in the return duct. The energy saving potential of adiabatic humidification over steam humidification has been proved, with savings of 8% and 23% in CASE 2 and CASE 3 compared to CASE 1, respectively. Furthermore, the pressurized water atomizer installed in the return duct exhibits greater energy saving effect than when installed in the MAU.

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Analysis of a Building Energy Efficiency Certification System in Korea

Cited by 41 publications

References 16 publications

Investigation of Energy and Environmental Potentials of a Renewable Trigeneration System in a Residential Application

Investigation of Energy and Environmental Potentials of a Renewable Trigeneration System in a Residential Application

Analysis of the Current Scoring Distribution by Evaluation Criteria in Korean Long-Life Housing Certification System Cases

Energy-Saving Benefits of Adiabatic Humidification in the Air Conditioning Systems of Semiconductor Cleanrooms

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