• Title/Summary/Keyword: Carbon market

Search Result 291, Processing Time 0.025 seconds

Characteristics of Emission and Fuel Economy of Fuel Additives in the Domestic Market (국내 유통 첨가제의 배출가스 및 연비특성)

  • Kim, Sungwoo;Lee, Minho;Lee, Jeongmin;Kim, JaiGueon;Jung, Choongsub
    • 한국신재생에너지학회:학술대회논문집
    • /
    • 2010.11a
    • /
    • pp.165.1-165.1
    • /
    • 2010
  • In the past, drivers bought a fuel additives to treat a combustion chambers or injector nozzles for carbon or gum deposit at market. But, nowadays, as raised cost of fuel for a vehicle the consumers also start focusing on a function of fuel additives that increases fuel economy of one. Some fuel additive manufacturers and agents advertise that their goods make a car it's initial state. This paper shows data for 3 years that were acquired during test for registration of an additive in domestic. The data were sorted according to kind of vehicle, kind of fuel, test mode, CO, HC, NOx, PM, total emission, fuel economy and accumulated mileage. And than by using simple linear regression analysis changes according to accumulated mileage was displayed. Normal distribution and histogram of rate of increase and decrease were displayed. the analyzed data indicated that a fuel additive maintain and make a car the first state of one but can't make a car be batter than initial the one.

  • PDF

An Analysis of Income Tax Incentives on Green Consumption (환경친화적 소비에 대한 소득세 지원의 도입방안)

  • Kim, Seung-Rae;Kim, Sung Tai;Lim, Byung In
    • Journal of Environmental Policy
    • /
    • v.13 no.3
    • /
    • pp.75-107
    • /
    • 2014
  • For the purpose of carbon mitigation, Korea needs to introduce stronger market-based economic incentives to promote environmentally-friendly behaviors of consumers. In particular, the government could consider introducing tax benefits on income taxation for green consumption, as well as public education and campaign, to stimulate environmentally-friendly consumption behaviors. In this respect, using an analysis of Input-Output and Household Income and Expenditure Survey in Korea, this paper designs four major scenarios related to income tax benefits for green consumption, and then explores the economy-wide effects of those proposed policies.

  • PDF

A Research for the Property of the Concrete Using Functional Materials (기능성 재료를 사용한 콘크리트의 특성에 관한 연구)

  • Lee, Jong-Chan
    • Journal of the Korean Recycled Construction Resources Institute
    • /
    • v.2 no.2
    • /
    • pp.93-100
    • /
    • 2006
  • Building materials are trending toward environmental materials nowadays and the market share of those is growing. So those researches and developments for environmental property are proceeding now. The main properties of environmental products are far infrared emission, negative ion emission, electro magnetic wave shielding, and anti fungus, these products are used with shape of mortar, and spray on the finish material. But There are not much researches for the concrete, main material in construction field, with those functional properties. So in this research we evaluated slump, compressive strength and air content as basic properties for concrete using functional materials of sericite, wood pattern sand stone, carbon black and nanometric silver solution and functional properties like far infrared emission, negative ion emission, electro magnetic wave shielding, and anti fungus. The results were as follows. The most useful material in the functional materials was carbon black. Sericite and nanometric silver solution had a little effect on functional property, so it was difficult to apply to concrete, and wood pattern sand stone had a high functional property but low compressive strength, can be applied to a factory product. Anti fungus of the concrete using nanometric silver solution was not clear but if those specimens were aged in $CO_2$ gas for a long time it might apparent.

  • PDF

Strategies of Diffusing Smart Grids for Low-carbon Green Growth: Grounded Theory Approach (저탄소 녹색성장을 위한 스마트그리드의 확산전략: 근거이론 접근법)

  • Joo, Jae-Hun;Kim, Lyun-Hwa
    • The Journal of Information Systems
    • /
    • v.22 no.1
    • /
    • pp.225-248
    • /
    • 2013
  • Korean government has been implementing a smart grid testbed in Jeju Island for the low-carbon green growth. As smart grids are in the early stage of their diffusion, strategic guidelines and related measures are needed to spread them successfully. In general, the successful diffusion of new technologies or new products are mostly determined in its early stages. With the introduction of smart grids, the electricity market paradigm will be transformed into user-oriented from provider-oriented. Thus, a study on the diffusion of smart grids from the perspective of users is necessary. This paper examines factors affecting the adoption and diffusion of smart grids from users' perspectives and provide strategic guidelines for diffusing the smart grid. Researchers conducted in-depth interviews with 41 people who have been already using smart grids in the Jeju testbed. Semi-structured interviews were used to collect data. The interviews were recorded on a digital voice recorder memory and subsequently transcribed verbatim. A total of 133 pages of transcripts were obtained from about 10 hours interviews. 97 concepts, 47 sub-categories and 19 categories were identified through open coding of grounded theory. We suggested a paradigm model for diffusing smart grids and total of seven propositions as strategic guidelines.

Impact of experience on government policy toward acceptance of Hydrogen fuel cell vehicles (정부정책에 대한 경험이 수소 연료전지 자동차의 수용에 미치는 영향)

  • Gang, Min-Jeong;Park, Hui-Jun
    • Proceedings of the Korean Society for Quality Management Conference
    • /
    • 2010.04a
    • /
    • pp.465-470
    • /
    • 2010
  • Korea government declared that "low carbon, green growth" through green technologies and clean energy to be the new national vision for the next 60 years(President's Liberation Day speech on Aug. 15, 2008). And succeeding "Green New Deal" plan involves nine core projects including energy saving, recycling, clean energy development. It is because hydrogen fuel cell vehicles, using electricity from chemical reaction of hydrogen and oxygen, let out water which is a by-product of such chemical reaction instead of emitting harmful particulate and gases such as NOX, SOX and CO2 that hydrogen fuel cell vehicles and its technology are drawing public attention as one of the sensible solutions in accomplishing "low carbon, green growth" agenda. Nevertheless There are many chances that let the people have a practical experience of hydrogen fuel cell vehicles. Sometimes new products, including hydrogen fuel cell vehicles, made by advanced technology can not penetrate through the market when it faces public skepticism that is stimulated from lack of knowledge and experience. That is the reason why not only cost benefit analyses and scientific risk assessments but also public acceptance studies toward hydrogen fuel cell vehicles have to be performed [Schulte, 2004]. This research address a need for comprehensive study on factors influencing public acceptance of hydrogen fuel cell car, specifically focusing on impacts of personal experience related to governmental science and technology policy toward public acceptance.

  • PDF

Fundamental Investigation of Functional Property of Concrete Mixed with Functional Materials

  • Lee, Jong-Chan;Lee, Moon-Hwan;Lee, Sae-Hyun;Park, Young-Sin;Park, Jae-Myung
    • International Journal of Concrete Structures and Materials
    • /
    • v.18 no.3E
    • /
    • pp.165-171
    • /
    • 2006
  • Environment-friendly materials are increasingly used as building construction materials nowadays, and the market share of those is growing. Accordingly, the research and developments in terms of environmental value are progressing steadily now. The main characteristics of environmental products are far-infrared radiation, negative-ion emission, electromagnetic wave shielding, and antimicrobial property. These products are often used in mortar and as spray on the finishing material. Nevertheless, there are hardly any research on the functional properties of concrete, the main material in construction field. Thus, we evaluated such basic properties of concrete as slump, compressive strength and air content while using such functional materials as sericite, wood-pattern sandstone, carbon black and nano-metric silver solution to focus on their functional properties like far-infrared radiation, negative ion emission, electro magnetic wave shielding, and antimicrobial activity in this research. The results indicated that the most useful material in the functional materials was carbon black. Sericite and nano-metric silver solution had a little effect on the functional property. Moreover, although wood-pattern sandstone had very high functional property, it exhibited too low compressive strength to be applied, to concrete as a factory product. Antimicrobial property of nano-metric silver solution in the concrete was not clear demonstrated, but if these specimens were to be aged in $CO_2$ gas for a long time, it might be apparent.

Submerged Culture Conditions for the Production of Alternative Natural Colorants by a New Isolated Penicillium purpurogenum DPUA 1275

  • Santos-Ebinuma, Valeria Carvalho;Teixeira, Maria Francisca Simas;Pessoa, Adalberto Jr.
    • Journal of Microbiology and Biotechnology
    • /
    • v.23 no.6
    • /
    • pp.802-810
    • /
    • 2013
  • This work aims at investigating the production of yellow, orange, and red natural colorants in a submerged culture of Penicillium purpurogenum DPUA 1275. For this purpose, different experimental conditions evaluating the effect of incubation time, type and size of inoculum, and different carbon and nitrogen sources were performed. Furthermore, the growth kinetics were obtained in the conditions of $10^8$ spores/ml and 5 mycelia agar discs during 360 h. These experiments showed that 5 mycelia agar discs and 336 h promoted the highest yellow (3.08 $UA_{400nm}$), orange (1.44 $UA_{470nm}$), and red (2.27 $UA_{490nm}$) colorants production. Moreover, sucrose and yeast extract were the most suitable carbon and nitrogen sources for natural colorants production. Thus, the present study shows a new source of natural colorants, which can be used as an alternative to others available in the market after toxicological studies.

A Research on DLC Thin Film Coating of a SiC Core for Aspheric Glass Lens Molding (비구면 유리렌즈 성형용 SiC 코어의 DLC 코팅에 관한 연구)

  • Park, Soon-Sub;Won, Jong-Ho
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.27 no.12
    • /
    • pp.28-32
    • /
    • 2010
  • Technical demands for aspheric glass lens formed in market increases its application from simple camera lens module to fiber optics connection module in optical engineering. WC is often used as a metal core of the aspheric glass lens, but the long life time is issued because it fabricated in high temperature and high pressure environment. High hard thin film coating of lens core increases the core life time critically. Diamond Like Carbon(DLC) thin film coating shows very high hardness and low surface roughness, i.e. low friction between a glass lens and a metal core, and thus draw interests from an optical manufacturing industry. In addition, DLC thin film coating can removed by etching process and deposit the film again, which makes the core renewable. In this study, DLC films were deposited on the SiC ceramic core. The process variable in FVA(Filtered Vacuum Arc) method was the substrate bias-voltage. Deposited thin film was evaluated by raman spectroscopy, AFM and nano indenter and measured its crystal structure, surface roughness, and hardness. After applying optimum thin film condition, the life time and crystal structure transition of DLC thin film was monitored.

Chlor-alkali Membrane Process and its Prospects (클로알칼리 멤브레인법과 전망)

  • Park, In Kee;Lee, Chang Hyun
    • Membrane Journal
    • /
    • v.25 no.3
    • /
    • pp.203-215
    • /
    • 2015
  • Chlor-alkali (CA) membrane process is based on salined water electrolysis employing cation condutive polymer electrolytes, which has been used for the conventional production of both sodium hydroxide and chlorine gas. The CA membrane process has advantages such as relatively low environmental impacts and fairly reduced energy consumption, when compared with diaphragm and mercury process. In this review articles, basic concepts, fundamental characteristics, key technologies of CA membrane process are dealt with in detail. In addition, advanced technologies associated with CA membrane process are described. They include zerogap and oxygen depolarized cathode technologies to improve energy efficiency during the electrolysis. Carbon dioxide mineralization technology will also be introduced as an example of hybridization with different technologies. Finally, current market trend in CA membrane process will be presented.

Performance Improvement on the Re-Liquefaction System of Ethylene Carrier using Low-Global Warming Potential Refrigerants (Low - Global Warming Potential 냉매를 이용한 에틸렌 수송선의 재액화 시스템 성능개선)

  • Ha, Seong-Yong;Choi, Jung-Ho
    • Journal of the Society of Naval Architects of Korea
    • /
    • v.55 no.5
    • /
    • pp.415-420
    • /
    • 2018
  • The development of sail gas has increased the production of ethane as well as natural gas. The decline in the market price for ethane has led to a change in the petroleum-based ethylene production process into an ethane-based ethylene production process and an increase in the ethane/ethylene trade volume. Large-scale ethane/ethylene carrier have been needed due to an increase in long-distance trade from the US, and cargo type change have leaded to consider a liquefaction process to re-liquefy Boil-Off gas generated during the voyage. In this paper, the liquefaction system of Liquefied Ethane Gas carrier was evaluated with Low-GWP (Low-Global Warming Potential) refrigerant and process parameters, Boil-Off Gas pressure and expansion valve outlet pressure, were optimized. Low-GWP refrigerants were propane (R290), propylene(R1270), carbon dioxide(R744) was considered at two type of liquefaction process such as Linde and cascade cycle. The results show that the optimal pressure point depends on the individual refrigerant and the highest liquefaction efficiency of carbon dioxide (R744) - propane (R290) refrigerant.