著者
野中 朋美 中野 冠
出版者
一般社団法人 日本機械学会
雑誌
日本機械学会論文集C編 (ISSN:18848354)
巻号頁・発行日
vol.77, no.783, pp.4024-4033, 2011 (Released:2011-11-25)
参考文献数
14
被引用文献数
4 5

The paper proposes a carbon taxation scheme using life cycle assessment (LCA) for clean energy vehicles (CEVs). This taxation scheme can enable to be discussed tax amount, tax revenue and total CO2 emissions by changing the scenarios and parameters, such as: technology development, energy price and total driving distance. The authors figure out the tax rate 28.05[JPY/kg-CO2], which makes the hybrid electric vehicle's life cycle cost (LCC) less than that of conventional gasoline vehicles. The simulation results show that LCC after taxation of electric vehicles (EVs) have lowest total cost when battery cost is 0.14 times the 2007 cost and have lower total cost than that of GVs when driven more than 221,600 km. In addition, EVs have lowest emissions when driven more than 63,000 km considered CO2 emissions in the manufacturing phase, and it is expected that elders who drive shorter distances are best suited for hybrid electric vehicles and gasoline vehicles not electric vehicles considering LCCO2. The proposed tax system can provide consumers with an incentive to choose vehicles with lower CO2 emissions.
著者
野中 朋美 中野 冠
出版者
一般社団法人 日本機械学会
雑誌
日本機械学会論文集C編 (ISSN:18848354)
巻号頁・発行日
vol.79, no.798, pp.408-417, 2013 (Released:2013-02-25)
参考文献数
24

This paper evaluates CO2 emissions generated during the manufacturing phase of global production network and discusses requirements analysis of green sustainable policies of global production network to prevent carbon leakage arising from transnational production. It calculates CO2 emissions from electricity used in manufacturing, emissions during transport from mining to manufacturing countries and emissions during transport from manufacturing countries to market. A case study of electric vehicle (EV) production includes outcomes calculated CO2 emissions in the manufacturing phase and transportation phase: for production in China, India, Thailand, Germany, Japan and Mexico to market in Japan, German and Singapore. It is illustrated that CO2 emissions during manufacture of EVs vary significantly, depending on the carbon intensity from electricity generation and each country's technical efficiency, and transport has a minor influence on emissions.
著者
石崎 啓太 中野 冠
出版者
一般社団法人 日本トライボロジー学会
雑誌
トライボロジスト (ISSN:09151168)
巻号頁・発行日
pp.18-00002, (Released:2018-06-21)
参考文献数
43

This paper presents a study of the environmental performance impact of a comprehensive set of conventional viscosity lubricants and latest low viscosity lubricants, considering the use for average fuel economy passenger vehicle (118.1 g-CO2/km in 2016). The vehicle is assumed to be equipped with either automatic transmission (AT) or contentiously variable transmission (CVT) with a lifetime mileage of 150 000 km. Engine oil, transmission fluid as well as oil filter were identified as requiring servicing (replacement) in use phase. It was found that the analyzed engine oil, AT fluid and CVT fluid with different formulations show almost identical CO2 emissions per weight from the lubricants production, and the contribution of the oil filters and the transmission fluids to CO2 emissions in maintenance phase accounts for over 20%. The latest low viscosity lubricants improve vehicle fuel economy by up to 4.0% compared to conventional viscosity lubricants. As a consequence, latest lubricants have the potential to save the vehicle life cycle CO2 emissions by up to 630 kg-CO2 even when subtracting the produced CO2 emissions in maintenance phase, with comparison of conventional viscosity lubricants.
著者
中野 冠
出版者
安全工学会
雑誌
安全工学 (ISSN:05704480)
巻号頁・発行日
vol.54, no.3, pp.186-192, 2015-06-15 (Released:2016-07-30)
参考文献数
24

持続可能なサプライチェーンマネジメントとは,サプライチェーンが持続可能であるようにマネジメントすることと,持続可能な社会のためにサプライチェーンをマネジメントすることの2 つの意味を有する.サプライチェーンの持続的な競争優位と震災対応などリスクマネジメントは前者に,環境に配慮したサプライチェーンは後者に含まれる. 本稿では,安全工学会に関係があると思われるリスクマネジメント特に突発的に起こる破壊的事象に対する課題を中心に解説する.突発的事象には金融恐慌のような需要急変と自然災害などによる生産途絶があり,課題や対策も異なる.自然災害による生産途絶では,人道的見地が経済的側面とともに考慮される必要がある.自動車業界などの事例を用いながら,解説を行う.
著者
則竹 茂年 中野 冠 木村 文彦
出版者
一般社団法人 日本機械学会
雑誌
日本機械学会論文集 C編 (ISSN:03875024)
巻号頁・発行日
vol.72, no.724, pp.3955-3961, 2006-12-25 (Released:2011-03-04)
参考文献数
9

As manufacturing activities have been widely globalized, it is becoming more and more difficult to respond to changes quickly. It is also important to take a positive stand against environmental issues to pursue the sustainability of the global environment without wasting resources related to production activities. The purpose of this paper is to establish a lifecycle-oriented design method of production systems. For this end, we have developed prototype system for life-cycle simulator, which is constructed by a demand scenario generation module and a simulation assessment module. We also conducted a simple comparative experiment taking two configuration plans for a transfer line and a cell line as examples in order to verify the effectiveness of this proposed technology.