scholarly journals Greenhouse Gas Reduction Effect of Solar Energy Systems Applicable to High-rise Apartment Housing Structures in South Korea

Energies ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2568 ◽  
Author(s):  
Chang-Hyun Park ◽  
Yu-Jin Ko ◽  
Jong-Hyun Kim ◽  
Hiki Hong
Keyword(s):  
South Korea ◽  
Greenhouse Gas ◽  
Energy Use ◽  
Azimuthal Angle ◽  
Vertical Wall ◽  
Co2 Reduction ◽  
High Rise ◽  
Greenhouse Gas Reduction ◽  
Net Zero ◽  
Reduction Effect

In South Korea, we are aiming for net zero energy use apartment home structures. Since the apartment structure in South Korea is generally a high-rise of 10 or more floors, the types of renewable energy applicable are limited to photovoltaic (PV) panels, solar collectors installed on the wall, or a photovoltaic thermal (PVT) hybrid panel combining both. In this study, the effect of PV, ST (Solar Thermal), and PVT systems on greenhouse gas reduction was analyzed using TRNSYS18. All three systems showed maximum CO2 reductions at 35° facing south. PV, ST, and PVT showed CO2 reductions of 67.4, 114.6, and 144.7 kg_CO2/m2·year, respectively. Compared to those values, when installed on a wall (slope of 90°), CO2 reduction is about 35–40% less and about 20% less at a slope of 75°. ST and PVT installed on the vertical wall have a greater greenhouse gas reduction effect than the PV installed at the optimal slope of 35°. Since the CO2 reduction difference among SW, SE, and azimuthal S is within 10%, ST and PVT are recommended for installation on high-rise apartment structure walls or balconies with the azimuthal angle of ± 45° with respect to south.

scholarly journals Potential Benefit of Carbon Benchmarking: Analysis of Semiconductor Industry in Taiwan

2018 ◽  
Vol 8 (9) ◽  
pp. 1644
Author(s):  
Je-Liang Liou ◽  
Pei-Ing Wu ◽  
Ching-Ren Chiu
Keyword(s):  
Decision Making ◽  
Greenhouse Gas ◽  
Technical Efficiency ◽  
Evaluation Method ◽  
Semiconductor Industry ◽  
Co2 Reduction ◽  
Environmental Benefits ◽  
Carbon Reduction ◽  
Greenhouse Gas Reduction ◽  
Decision Making Unit

The main purpose of this study is to explore the carbon reduction environmental benefits that can be achieved if carbon benchmarking is applied when semiconductor manufacturers in Taiwan work to improve the technical efficiency of their carbon reduction efforts. The evaluation method used is as follows. First, a technical efficiency measurement method that is capable of considering both desirable outputs and undesirable outputs is used to measure the technical efficiency of the carbon reduction efforts and identify the benchmark firms with the best technical efficiency. Next, an attempt is made to estimate the greenhouse gas reduction that is realized by the sample if their carbon reduction efforts are accompanied by the implementation of a benchmarking system. Finally, the monetary value of the greenhouse gas reduction is estimated so as to develop a better understanding of the carbon reduction benefits for the adoption of the process outlined above. The empirical results show that using carbon benchmarking to raise the technical efficiency of carbon reduction management would, on average, boost the annual sales revenue of each decision-making unit by about US$486.6 million, while also bringing up the average annual CO2 reduction benefits per decision-making unit by US$11.11 million per year.

scholarly journals Greenhouse Gas Reduction Effect of Improvement of Existing Landfill Gas(LFG) Production by Using Food Waste Water

2016 ◽  
Vol 25 (3) ◽  
pp. 104-113 ◽  
Author(s):  
Kyounga Shin ◽  
Jongin Dong ◽  
Daewon Park ◽  
Jaehyung Kim ◽  
Wonsoek Chang
Keyword(s):  
Waste Water ◽  
Greenhouse Gas ◽  
Food Waste ◽  
Landfill Gas ◽  
Greenhouse Gas Reduction ◽  
Reduction Effect

scholarly journals Expressway Greenhouse Gas Reduction Effect Analysis According to the Electric Vehicle Supply

2013 ◽  
Vol 31 (5) ◽  
pp. 37-47
Author(s):  
Jin Kak Lee ◽  
Dong Hee Han ◽  
Chang Kwon Oh ◽  
Chul Ki Jung ◽  
Kwan Kyo Oh
Keyword(s):  
Greenhouse Gas ◽  
Electric Vehicle ◽  
Effect Analysis ◽  
Greenhouse Gas Reduction ◽  
Reduction Effect

scholarly journals Greenhouse gas emissions from cattle production sector in South Korea

2016 ◽  
Vol 21 (2) ◽  
pp. 112
Author(s):  
Andi Febrisiantosa ◽  
J.H. Lee ◽  
H.L. Choi
Keyword(s):  
South Korea ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Use ◽  
Manure Management ◽  
Cattle Production ◽  
Enteric Fermentation ◽  
Gas Emissions ◽  
Production Sector ◽  
Hanwoo Cattle

<p class="abstrak2">South Korea has declared to reduce greenhouse gas emissions by 30% compared to the current level by the year 2020. The greenhouse gas emissions from the cattle production sector in South Korea were evaluated in this study. The greenhouse gas emissions of dairy cattle, Non-Korean native cattle, and Korean native (Hanwoo) cattle production activities in 16 local administrative provinces of South Korea over a ten-year period (2005–2014) were estimated using the methodology specified by the Guidelines for National Greenhouse Gas Inventory of the IPCC (2006). The emissions studied herein included methane from enteric fermentation, methane from manure management, nitrous oxide from manure management and carbon dioxide from direct on-farm energy use. Over the last ten years, Hanwoo cattle production activities were the primary contributor of CH<sub>4</sub> from enteric fermentation, CH<sub>4</sub> from manure management, NO<sub>2</sub> from manure management and CO<sub>2</sub> from on-farm energy use in the cattle livestock sector of South Korea, which comprised to 83.52% of total emissions from cattle production sector.</p>

scholarly journals Environmental shutdown of coal-fired generators for greenhouse gas reduction: A case study of South Korea

2019 ◽  
Vol 252 ◽  
pp. 113453 ◽  
Author(s):  
Hansol Shin ◽  
Tae Hyun Kim ◽  
Hyoungtae Kim ◽  
Sungwoo Lee ◽  
Wook Kim
Keyword(s):  
South Korea ◽  
Greenhouse Gas ◽  
Greenhouse Gas Reduction

scholarly journals Energy and CO2 Reduction of Aluminum Powder Molds for Producing Free-Form Concrete Panels

2020 ◽  
Vol 12 (22) ◽  
pp. 9613
Author(s):  
Donghoon Lee ◽  
Sunkuk Kim
Keyword(s):  
Co2 Emissions ◽  
Aluminum Powder ◽  
Energy Use ◽  
Phase Change Materials ◽  
Co2 Reduction ◽  
Free Form ◽  
Cnc Machine ◽  
Repeated Heating ◽  
Concrete Panels ◽  
Reduction Effect

Free-form design may enhance the architectural value of buildings in terms of aesthetic and symbolic effects. However, it is difficult to reuse the mold of free-form concrete segments, so they are manufactured for single use. Manufacturing these molds is a time-consuming process that requires a lot of manpower. To solve these problems, there have been numerous studies on the use of phase change materials (PCMs) to make the molds. PCM molds represent a new technique of producing free-form panels using a computerized numeric control (CNC) machine that employs low-cost material to produce free-form concrete panels. However, PCM molds require a substantial amount of time and energy during fabrication because repeated heating and cooling cycles are required during panel production, and this process increases the CO2 emissions. Thus, the purposes of this study were to develop composite molds using aluminum powder to improve PCM mold performance and to conduct experiments to quantify the reduction of energy use and CO2 emissions. As a result of cooling experiments, it was found that the aluminum powder mold had an energy reduction effect of 14.3% against the PCM mold that had been produced only with paraffin wax, and CO2 reduction effect of more than 50% against the conventional mold.

REX10 interconnection and environmental greenhouse gas reduction in south korea

2009 ◽  
Author(s):  
Sang-Seung Lee ◽  
Jong-Keun Park ◽  
Goon-Cherl Park ◽  
Seung-Il Moon ◽  
Geun-Pyo Park ◽  
...  
Keyword(s):  
South Korea ◽  
Greenhouse Gas ◽  
Greenhouse Gas Reduction
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