Journal of the Korean Solar Energy Society最新文献_第10页

A Case Study of the 24hours Public Building in Relation to Energy Consumption and Improvements of Remodeling – Focused on Fire Station Facilities - 24小时公共建筑能耗与改造改进研究——以消防站设施为例

Journal of the Korean Solar Energy Society Pub Date : 2022-02-28 DOI: 10.7836/kses.2022.42.1.023

Jihyun Yoo, Sungwon Cho, Seung-Rok Lee, G. Cho

{"title":"A Case Study of the 24hours Public Building in Relation to Energy Consumption and Improvements of Remodeling – Focused on Fire Station Facilities -","authors":"Jihyun Yoo, Sungwon Cho, Seung-Rok Lee, G. Cho","doi":"10.7836/kses.2022.42.1.023","DOIUrl":"https://doi.org/10.7836/kses.2022.42.1.023","url":null,"abstract":"Building energy consumption in Korea accounts for 20% of the total energy consumption, and this figure is on a continuous increase. About 71% of the buildings in Seoul are over 20 years old, indicating that the government should present a plan to activate remodeling for existing public buildings. Business facilities account for most of the public buildings managed by Seoul, and as a result of examining the distribution of the total floor area, it was found to be the most suitable for remodeling. Most of these business facilities are fire station facilities, and as fire station facilities consume energy 24 hours, great improvement can be expected when remodeling old buildings. Most of the energy consumption patterns of fire departments showed similar patterns in winter and summer. However, there was no significant difference in energy consumption between the fire stations in the 80s and the fire stations in the 00s. Therefore, Field measurements were carried out, and the reason why there was no difference in energy consumption was found through indoor environment and PMV results, indicating that the older the building, the colder it is in the winter. It is judged that the amount of energy used is limited according to the guidelines of the government and local governments, and through this, the indoor environment is maintained differently depending on the age while consuming a similar amount of energy. In addition, the improvement effect of remodeling was analyzed through the ECO2 program for buildings in the 1980s. It is expected to cost about 1.9 billion won to make the energy efficiency rating 1++, indicating the need to compare it with a dynamic simulation tool that can consider the behavior and patterns of occupants in the future.","PeriodicalId":276437,"journal":{"name":"Journal of the Korean Solar Energy Society","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124002941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

G-SEED Innovative Design Statue Analysis and Proposal for Improvement of Evaluation Method G-SEED创新设计现状分析及评价方法改进建议

Journal of the Korean Solar Energy Society Pub Date : 2022-02-28 DOI: 10.7836/kses.2022.42.1.057

Yo-sun Yun, Young-Sun Jeong, Sung-mo Seo

{"title":"G-SEED Innovative Design Statue Analysis and Proposal for Improvement of Evaluation Method","authors":"Yo-sun Yun, Young-Sun Jeong, Sung-mo Seo","doi":"10.7836/kses.2022.42.1.057","DOIUrl":"https://doi.org/10.7836/kses.2022.42.1.057","url":null,"abstract":"G-SEED (Green Standard for Energy and Environmental Design) evaluates a certification system that evaluates the environmental friendliness of buildings. An innovative design to evaluate excellent parts that cannot be evaluated by existing certification items was introduced in G-SEED 2016 version. This study examines the current certification status of G-SEED ID (Innovative Design) and proposes directions for improvement. In addition, the innovation evaluation method and certification items in LEED and BREEAM were reviewed. The purpose of this study is to analyze and compare different certification systems and propose the scope of improvement for future G-SEED revisions. The innovative design gives additional points to each country and evaluates items superior to the existing performance; however, evaluation methods differ by country. The innovative design improvement plans presented in this study are 1) criteria movement of items with high acquisition rate, 2) improve evaluation methods for innovative plan and design and expansion of target buildings, 3) review items with exemplary performance, and 4) identify a system that can propose and approve certification items and introduce pilot certification items.","PeriodicalId":276437,"journal":{"name":"Journal of the Korean Solar Energy Society","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130792349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of Thermal Stability of Electrically Conductive Adhesives for Flexible Thin-Film Solar Cells 柔性薄膜太阳能电池用导电胶粘剂的热稳定性评价

Journal of the Korean Solar Energy Society Pub Date : 2021-12-01 DOI: 10.7836/kses.2021.41.6.031

Dajeong Kim, Jincheol Kim, N. Park

引用次数: 0

A Study on the Aesthetic BIPV Module with High-efficiency Technology Applied 高效技术应用的美学BIPV组件研究

Journal of the Korean Solar Energy Society Pub Date : 2021-12-01 DOI: 10.7836/kses.2021.41.6.097

Sungbae Cho, Hyosik Chang

{"title":"A Study on the Aesthetic BIPV Module with High-efficiency Technology Applied","authors":"Sungbae Cho, Hyosik Chang","doi":"10.7836/kses.2021.41.6.097","DOIUrl":"https://doi.org/10.7836/kses.2021.41.6.097","url":null,"abstract":"The rapid growth of the building integrated photovoltaics (BIPV) market is attributable to the government’s expansion of BIPV installation support and the policy of raising the REC weight by a factor of 1.5. In addition, as the mandatory, 2025 zero-energy building policy has been extended to the private building sector, interest and demand for BIPV modules and systems are continuously increasing. However, when a general PV module with insufficient aesthetics is installed, it is possible that the installation of BIPV is avoided for aesthetic reasons or installed only at a minimal rate. In other words, to expand the installation and supply of BIPV modules, it is necessary to develop color BIPV modules with aesthetics and high-efficiency technology. In this study, a color BIPV module was developed using polysilazane, which is inexpensive and has excellent transmittance. The electrical output characteristics of the developed color PV module were analyzed, and the output loss was minimized by applying half-cut and gapless processes. In addition, the developed high-efficiency color BIPV module was subjected to an outdoor test, and a commercialization model was established by analyzing the amount of power generated.","PeriodicalId":276437,"journal":{"name":"Journal of the Korean Solar Energy Society","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124825341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential Reduction of Greenhouse Gas Emissions for Buildings by Renewable Energy 利用可再生能源减少建筑物温室气体排放的潜力

Journal of the Korean Solar Energy Society Pub Date : 2021-12-01 DOI: 10.7836/kses.2021.41.6.073

Young-Sun Jeong, S. Cho, Sun-Hye Moon

引用次数: 0

Long-Term Thermal Performance Evaluation of a Solar Heating System of Greenhouse with High Temperature Underground Seasonal Thermal Energy Storage 高温地下季节性蓄热温室太阳能采暖系统的长期热性能评价

Journal of the Korean Solar Energy Society Pub Date : 2021-12-01 DOI: 10.7836/kses.2021.41.6.059

H. Lim, Hyun-Seung Lee, Wang-Je Lee, U. Shin

{"title":"Long-Term Thermal Performance Evaluation of a Solar Heating System of Greenhouse with High Temperature Underground Seasonal Thermal Energy Storage","authors":"H. Lim, Hyun-Seung Lee, Wang-Je Lee, U. Shin","doi":"10.7836/kses.2021.41.6.059","DOIUrl":"https://doi.org/10.7836/kses.2021.41.6.059","url":null,"abstract":"In this study, we analyzed the long-term feasibility of a solar heating system for a citrus greenhouse to address the financial difficulties facing farms and to reduce greenhouse gas emissions. The solar heating system consisted of an auxiliary boiler, a solar storage tank with a capacity of 100 m and a cylindrical borehole thermal energy system (BTES) with a storage volume of 2,905 m. We installed an evacuated tube collector and flat-plate collector (both with a capacity of 302 m) to measure and compare each solar fraction and thermal storage efficiency. TRNSYS 18 was used as the simulation tool. The annual solar fraction was found to be 83.2%, and the efficiency of thermal storage was 35.7%. In this case, the efficiency of evacuated tube collector and flat-plate collector was 68.7% and 33.2% respectively. This shows that the evacuated tube collector, operating at a relatively high temperature, was more efficient than the flat-plate collector. Despite the high solar fraction, the maximum operating temperature of the solar storage tank was 90° or less, indicating that the tank was less likely to fail due to overheating.","PeriodicalId":276437,"journal":{"name":"Journal of the Korean Solar Energy Society","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113960499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Methodology of Calculating the Optimal ESS Capacity according to PV Power Generation for Grid-Connected PV-ESS System through Optimal Operation 并网PV-ESS系统通过优化运行计算光伏发电ESS最优容量的方法

Journal of the Korean Solar Energy Society Pub Date : 2021-12-01 DOI: 10.7836/kses.2021.41.6.085

Yong-Ha Kim, Gyu-Rim Han, Sang-Hwa Han, Hye-Seon Lee, Jong-Min Park, Yu-Ri Kim

引用次数: 1

Proposal of Power Estimation Model of Color BIPV System 彩色BIPV系统功率估算模型的提出

Journal of the Korean Solar Energy Society Pub Date : 2021-10-01 DOI: 10.7836/kses.2021.41.5.001

Ju-young Shin, S. Ko, W. Shin, H. Hwang, Y. Ju, Gi-Hwan Kang, H. Chang

{"title":"Proposal of Power Estimation Model of Color BIPV System","authors":"Ju-young Shin, S. Ko, W. Shin, H. Hwang, Y. Ju, Gi-Hwan Kang, H. Chang","doi":"10.7836/kses.2021.41.5.001","DOIUrl":"https://doi.org/10.7836/kses.2021.41.5.001","url":null,"abstract":"The Korean government is actively promoting mandatory zero energy building (ZEB) implementations to achieve its goal of reducing greenhouse gas emissions. Photovoltaic (PV) technologies are hence being applied in the construction of ZEBs, and building-integrated photovoltaic (BIPV) systems are in the spotlight. BIPV systems are presently being integrated in the building envelopes as parts of the buildings, such as facades, roofs, and windows, to produce on-site clean electricity without requiring additional space. However, the monotonous black-colored BIPV modules are not popular because they affect the aesthetics of the buildings. To mitigate this problem, studies have been conducted on colored BIPV modules to improve the aesthetics of buildings by implementing various colored components. Power estimation is an important part of judging the faults in PV systems. Therefore, this paper proposes a performance estimation model using the characteristics of color BIPV systems based on I-V curve measurements. A color BIPV and meteorological monitoring systems were installed to acquire field survey data. The goal of this study was to verify the superiority of the proposed model by comparison with the power estimated using a simulation tool. The proposed model with high-accuracy power estimations is expected to help diagnose the performance of the BIPV system.","PeriodicalId":276437,"journal":{"name":"Journal of the Korean Solar Energy Society","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123436440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Forecast of Long-term Trend of System Marginal Price with Amounts of Machine Learning Train Data 基于大量机器学习训练数据的系统边际价格长期趋势预测

Journal of the Korean Solar Energy Society Pub Date : 2021-10-01 DOI: 10.7836/kses.2021.41.5.013

Kyeong-Rok Mun, Keonwoo Lee, K. Ko

引用次数: 0

Estimation of PV Power Generation by Linear Regression Model Using Voltage and Current Data 基于电压和电流数据的线性回归模型估算光伏发电

Journal of the Korean Solar Energy Society Pub Date : 2021-10-01 DOI: 10.7836/kses.2021.41.5.047

Yong Kyu Lee, W. Shin, Y. Ju, H. Hwang, Gi-Hwan Kang, S. Ko, H. Chang

{"title":"Estimation of PV Power Generation by Linear Regression Model Using Voltage and Current Data","authors":"Yong Kyu Lee, W. Shin, Y. Ju, H. Hwang, Gi-Hwan Kang, S. Ko, H. Chang","doi":"10.7836/kses.2021.41.5.047","DOIUrl":"https://doi.org/10.7836/kses.2021.41.5.047","url":null,"abstract":"PV systems have the disadvantages of large fluctuations in power and of not being controllable due to external factors. In addition, small-scale PV plants rarely receive maintenance after installation. Managers thus need a monitoring system that predicts the power of the PV plant in order to maintain performance and facilitate O&M. Recently, methods using big data to predict PV plant power have been applied. In this paper, power was predicted through learning based on PV plant field data. Furthermore, the error of the estimated power was analyzed through accuracy evaluations, RMSE, and R analysis. As the learning method, linear regression analysis was applied among machine learning models. Existing linear regression models can immediately estimate power by learning irradiation data as input variables and power data as output variables. However, if the PV system malfunctions, the accuracy of the estimated power generation decreases. In this paper, in order to address this problem, power was estimated by learning irradiation data as input variables and voltage and current data as output variables rather than directly estimating the power. As a result, the RMSE of the proposed linear regression equation was 15.9235kw, yielding a better power estimate than the existing method (16.4241kw).","PeriodicalId":276437,"journal":{"name":"Journal of the Korean Solar Energy Society","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123977301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0