Search Results 1-20 of 1453

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Impact of the Electric Vehicle Policies on Environment and Health in the Beijing–Tianjin–Hebei Region

Ma Chenen , Madaniyazi Lina , Xie Yang

… The development of electric vehicles will lead to an increase in electricity demand. … Because electricity is mostly generated by thermal power in China, primary energy consumption will also increase. …

International Journal of Environmental Research and Public Health 18(2), 623, 2021-01-13

IR
2

Evaluation of UV Disinfection on Inactivation of Indicator Microorganisms and Ecotoxicity after Temporary Wastewater Treatment in Sewage Treatment Plants Damaged by Earthquake and Tsunami Disaster [in Japanese]

PARK Kyoungsoo , PARK Inkoo , YAMASHITA Naoyuki , IHARA Masaru , TAKEUCHI Haruka , TANAKA Hiroaki

　東日本大震災に伴う大津波により被災した下水処理場では，流入水を沈殿や接触酸化法などで処理後，塩素消毒を行ったが，それらの暫定処理と塩素消毒ではウイルスの消毒効果が小さく，塩素消毒では残留塩素による生態毒性の問題がある．本研究は塩素に代わって紫外線消毒を行う場合を想定し，被災下水処理場から流入水/初沈越流水，接触酸化処理水を採水し，22Lの円筒形照射装置（波長254nm，UVラン …

Journal of Japan Sewage Works Association 58(701), 102-113, 2021

J-STAGE
3

INFLUENCE OF BEHAVIOR CHANGE TO PREVENT THE EXPANSION OF COVID-19 ON ENERGY CONSUMPTION OF ALL-ELECTRIC APARTMENT HOUSES IN TOKYO [in Japanese]

TAKASE Kozo , NAGAKURA Naomu , INOUE Takashi

… Compared to 2019, the electricity consumption except for hot water use in April and May increased by about 30% and the water consumption increased by about 10%. … Especially on weekday daytime consumption, electricity and water increased by about 50%. …

AIJ Journal of Technology and Design 27(65), 303-308, 2021

J-STAGE
4

STUDY ON ENERGY CONSUMPTION OF STUDENT DORMITORIES AND RELATIONSHIP BETWEEN ENERGY CONSUMPTION OF PRIVATE ROOMS AND LIFESTYLE OF RESIDENTS [in Japanese]

MIURA Toshiyuki , MIURA Keita , CHO Seigen

… In this research, the energy consumption and the lifestyle of residents for university student dormitories were surveyed. …

AIJ Journal of Technology and Design 27(65), 271-276, 2021

J-STAGE
5

Application of Numerical Simulation of the Toner Melt Behavior to Toner Development [in Japanese]

FUJISAKI Tatsuya , MANDAI Makiko , KAGAWA Tetsuya , ITOU Hiroto

… 環境負荷低減への社会的な要望により，複合機のTEC (typical electricity consumption) 値を低下させる技術開発の必要性が増している．その中で，トナーにおいては更に低温で定着できることが求められている．今回，低温定着化の因子を明確化することを目的として，トナー構造および物性を考慮できる，粒子法を用いた溶融シミュレーションを構築しトナーの溶融挙動に加えてワックス染み出し性 …

NIHON GAZO GAKKAISHI (Journal of the Imaging Society of Japan) 60(1), 3-8, 2021

J-STAGE
6

Study on Effects of Improving Flexibility of Thermal Power Generators on Supply-and-demand Control in Case of High Penetration of Renewable Energy Sources [in Japanese]

Tsujii Yuki , Oyama Tsutomu

… Flexibility expresses the extent to which a power system can change electricity production (supply) or consumption (demand) in response to variability and uncertainty. …

IEEJ Transactions on Power and Energy 141(2), 44-55, 2021

J-STAGE
7

EQUIPMENT CONSTITUTION AND OCCUPANT BEHAVIOR IN A NET ZERO ENERGY HOUSE CONSIDERING STAYING AT HOME DURING POWER OUTAGES [in Japanese]

INABA Manae , KIM Jungmin , OKI Reina , AKIMOTO Mizuho , TANABE Shin-ichi , MORITO Naomi

… Moreover, the economic efficiency of the ZEH was calculated to prove the feasibility of the study. The following observations are reported in this article: 1) The thermal insulation was effective in reducing the electricity consumption for heating and cooling, and the reduction was particularly pronounced in the winter. …

Journal of Environmental Engineering (Transactions of AIJ) 86(779), 111-120, 2021

J-STAGE
8

Field Experiment of Smartphone-based Energy Efficiency Services for Households: a Proposal of Personalization Method for Neighborhood Comparison [in Japanese]

Nakano Kazuyoshi , Nishio Ken-ichiro , Mukai Toshihiro , Odate Yoko , Sasaki Masanobu

… The method uses a regression model considering attributes of households, whose prediction can be regarded as electricity consumption for similar neighborhoods. …

Journal of Japan Society of Energy and Resources 42(1), 18-29, 2021

J-STAGE
9

Energy saving and nitrogen removal enhancement by reduction of air supply and optimal combination of blowers in a wastewater treatment plant [in Japanese]

MINAKAWA Tadasaburo , ISHIWATARI Yoshiyuki , YAMAGUCHI Daiki , ARAI Jun

　下水処理の省エネルギー化の検討として，反応槽末端部のDO設定値や空気弁の開度を引き下げたり好気槽へ疑似無酸素槽を導入するなどの風量低減操作（減風操作）と，使用するブロワの組み合わせの適正化を図る運転，すなわち消費電力量が最小となるように意識的に操作する運転（出力最小化運転）が，ブロワ電力量をどの程度低減させる効果があるかについて検証を行った．まず反応槽へのアンモニア性窒素負荷の …

Journal of Japan Sewage Works Association 58(699), 95-103, 2021

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10

EVALUATIONS OF THERMOSYPHON SOLAR THERMAL WATER HEATERS PART 2: SIMULATION ANALYSIS ON THE PERFORMANCE OF OPEN CIRCUIT SOLAR WATER HEATERS [in Japanese]

YOSHINAGA Mika , SHIRODE Kosaku , KUWASAWA Yasuo

… Though S1-system has smaller hot water demand, its energy performance was close to that in S3 system because of little primary energy consumption derived from electricity. …

Journal of Environmental Engineering (Transactions of AIJ) (778), 977-984, 2020-12

J-STAGE AIJ
11

Does Urban Concentration Mitigate the Negative Impacts of Electric Energy Consumption on Climate Change? Evidence from Egypt

Osman Taher , Salem Muhamed

… This paper researched the impacts of the built environment on local electricity consumption in metropolitan areas through a contextual investigation of Giza Governorate in Greater Cairo Metropolitan Region GCMR), Egypt. … Main results were the built environment associated to a settlement such as number of rooms and floor area in the settlement considerably influences the domestic electricity consumption; …

Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES) (6), 141-148, 2020-10-22

IR DOI
12

RESEARCH ON HOUSEHOLD ENERGY CONSUMPTION AND DATABASE DEVELOPMENT IN THAILAND, VIETNAM, AND CAMBODIA (PART 1): THE DEVELOPMENT OF A HOUSEHOLD ENERGY CONSUMPTION DATABASE IN SOUTHEAST ASIA [in Japanese]

SHIMIZU Takuya , TAKAGUCHI Hiroto , TAKAYAMA Azusa , XIAN Ji , MURAKOSHI Chiharu , NAKAGAMI Hidetoshi

… The proportion of households with total floor area over 75 m² in KC and BB was 72.5%, compared with 50.7% in Phnom Penh. The percentage of households using electricity was approximately 100% in Bangkok, Hanoi, and Ho Chi Minh City. … The usage rate of firewood was 7.1% in Phnom Penh and 2.5% in KC and BB. The annual secondary energy consumption per household was 18.8 GJ in Ho Chi Minh City, followed by 18.2 GJ in Hanoi. …

Journal of Environmental Engineering (Transactions of AIJ) (773), 535-543, 2020-07

J-STAGE AIJ
13

EFFECT OF ENERGY INTERCHANGE SYSTEM BY USING FUEL CELLS CO-GENERATION IN APARTMENT COMPLEX [in Japanese]

YUASA Kazuhiro , YU Shuai , WU Wei

… system with high energy saving performance in the multi·use condominiums is not considered. In this research, by utilizing the characteristics of energy consumption time fluctuation of both housing unit and facility unit in multi-family dwellings, especially apartment complex, by introducing FC-CGS, not only electricity but also heat can be interchanged in the entire residential building, an energy interchange system to meet each other, and aimed to clarify the optimum introduction capacity and …

Journal of Environmental Engineering (Transactions of AIJ) (772), 485-493, 2020-06

J-STAGE AIJ
14

RESEARCH ON DEVELOPMENT OF LESSON PROGRAM FOR THE SPREAD OF ENVIRONMENTAL LEARNING LESSON USING ENVIRONMENTALLY CONSCIOUS TECHNOLOGY [in Japanese]

TANAKA Shunya , NAKAJIMA Yusuke

… The findings obtained from questionnaire surveys, interview surveys and energy consumption surveys are as follows. 1) Set up explanation panel and touched in lesson about environmentally conscious technology was about 50% of answering schools from questionnaire survey for elementary school. …

Journal of Environmental Engineering (Transactions of AIJ) (769), 237-247, 2020-03

J-STAGE AIJ
15

A Novel Approach to Minimize Energy Requirements and Maximize Biomass Utilization of the Sugarcane Harvesting System in Sri Lanka

トファエルアハメド , 野口良造 , Thilanka Ariyawansha , Dimuthu Abeyrathna , Buddhika Kulasekara , Devananda Pottawela , Dinesh Kodithuwakku , Sandya Ariyawansha , Natasha Sewwandi , WBMAC Bandara , Ahamed TOFAEL , Ryozo NOGUCHI

… The CDLH was investigated for manual harvesting capacity, energy consumption, sugar loss, and biomass energy potential. … High energy potential increases the energy potential to consumption ratio compared to the existing method. … Therefore, the theoretical evaluation showed that the CDLH system can produce more than 20 kg of sugar and 879 MJ of electricity when processing 1 t of sugarcane. …

Energies 13(6), 1497, 2020-03

IR
16

Analysis of Energy-Water Nexus Palm Oil Biodiesel Production in Riau Using Life Cycle Assessment and Water Footprint Methods

Kuncoro Arnan , Purwanto Wahyu Widodo

… The purpose of this study is to conduct an analysis of the relationship between water and energy consumption in biodiesel production in Riau Province. … The process simulation of biodiesel production at the refinery was done with Unisim Design R390.1 as part of Life Cycle Assessment (LCA) to evaluate the energy consumption and CO_2 emission. … Water consumption in biodiesel production was calculated using water footprint method. …

Evergreen 7(1), 104-110, 2020-03

IR DOI
17

Study on the Carbon Emission Evaluation in a Container Port Based on Energy Consumption Data

Huzaifi Hanzalah Muhammad , Budiyanto Arif Muhammad , Sirait Juanda Simon

… The method of this research involved collecting the data of the ports' performances for one year, which covered berthing, equipment and utility, fuel consumption, and electricity. … The emission factor used for fuel was based on the policy issued by the Ministry of Environment that has ratified IPCC 2006, and, as for the electricity, the emission factor of the Java Madura Bali power plant was used, i.e. 0.844 kg of CO_2/KWH. …

Evergreen 7(1), 97-103, 2020-03

IR DOI
18

An Electricity Saving Load Balancing Method for Cloud Storage and Processing Platforms [in Japanese]

木全崇 , 寺西裕一 , 細川貴史 , 原井洋明 , 下條真司

IoT（Internet of Things）において生成されるデータを，時刻などの連続値をキーとして保存・処理可能な分散クラウドストレージ上で消費電力の削減を実現する新たな管理・制御手法VNLB-ESを提案する．VNLB-ESは，分散クラウドストレージシステムにかかるストレージ負荷・検索負荷・処理負荷を，仮想ノードを用いて効率的に複数の物理ノード（計算機）に分散させる機能を備える．また，要求され …

情報処理学会論文誌 61(2), 339-350, 2020-02-15

IPSJ
19

University Energy Consumption and the Choice on Electricity Utility : A Case Study on Kyoto Women's University [in Japanese]

西江莉子 , 諏訪亜紀

… Yet, it is still a marginal exercise to analyse energy consumption level at universities in Japan, not to mention the identification of carbon emission volume at their campuses. … Electricity market reform, broadly initiated since 1990s, was further developed in 2016, when the market became fully opened for retail competition. … It means universities can purposefully choose their electricity suppliers based on their emission factors. …

現代社会研究 22, 89-96, 2020-01

IR
20

Effects of Lubricating Oil Oxidation on Tribological Characteristics of Low-Current Electric Sliding Contacts Made of Porous Materials [in Japanese]

YOSHIDA Hiroyuki , KANEKO Satoru , TAURA Hiroo , SAKAINO Eri

… In recent years, with the demand for lower electricity consumption and longer life of automobiles, it is required to reduce current consumption and improve the reliability for electric sliding contacts. …

The Proceedings of Mechanical Engineering Congress, Japan 2020(0), S11213, 2020

J-STAGE

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