Performance of Diesel engines Fueled by Rice Bran Oil Extracted Using CO2-Expanded Hexane
Yooko Tsuchiya, Lead
Tropical Agriculture and Development, Dec. 2024, [Reviewed]

The retention factors and partial molar volumes of cycloartenyl ferulate at infinite dilution in supercritical carbon dioxide: Measurements and correlation
Yao Fu; Ryohei Umemura; Guoxiao Cai; Toshitaka Funazukuri; Yooko Tsuchiya; Chang Yi Kong, Elsevier BV
Journal of Molecular Liquids, Oct. 2024, [Reviewed]

Life Cycle Assessment and Return on Investment of Biogas Utilization in Dairy Farming Areas of Tanzania
Yooko Tsuchiya; Tobias A. Swai, Lead, Scientific Research Publishing, Inc.
Low Carbon Economy, Jun. 2024, [Reviewed]

THE ENTREPRENEURSHIP POTENTIAL OF RURAL AREAS: SOAP PRODUCTION AS A SIDE BUSINESS FOR TANZANIAN RICE FARMERS
Y. Tsuchiya; T. A. Swai; K. Takahashi; T. Wakamatsu; R. Watari; J. V. Nsenga, Lead, Purpose: This study examines soap production’s entrepreneurship potential and profitability as a supplementary business for rural rice farmers in Tanzania to promote their economic independence. Design/ Methodology/ Approach: We randomly sampled and interviewed about ten small-scale soap manufacturers in urban Tanzania gathered from 2019-2021 to develop a soap production business strategy for rural farmers at a similar scale. Considering the Voronoi theory, we calculated the distance from the rural areas to urban centres to determine the transportation costs, which particularly burden rural farmers. Soap production costs and profitability were determined based on transportation costs and raw material prices. Findings: Rural farmers would incur high transportation costs, given the high average distance to the nearest urban centre (sometimes > 100 km). Nevertheless, producing their rice bran oil, valuable raw material for soap production, would give them a competitive advantage over urban producers. Research Limitation: The study’s proposed strategy can be applied to similar contexts to reduce the urban-rural entrepreneurship divide. Practical Implication: Soaps made using rice bran oil help farmers reuse agricultural waste. Their active ingredients also increase their marketability as high-end cosmetic products, providing farmers with additional income. Social Implication: Commercializing agricultural residues such as rice bran increases farmers’ revenues and reduces CO2 emissions by preventing the residues’ incineration; this creates a virtuous cycle in society. Originality/ Value: This study presents a more realistic business strategy for rural Tanzanian farmers, as, unlike previous studies, it considers not only direct costs but also transportation costs.
African Journal of Applied Research, 31 Oct. 2022, [Reviewed]

Treatment to Control the Deterioration of Rice Bran Oil as a Fuel during Long-Term Storage of Rice Bran in Africa
TSUCHIYA Yooko; TERAZOE Hitoshi, Lead, When rice bran is stored for a long time, the free fatty acid (FFA) concentration in rice bran oil increases; hence, it is difficult to use the oil as a fuel for diesel engines. This study aimed to promote electrification using biofuel derived from rice bran oil; in order to use rice bran oil as a fuel, it is necessary to control the increase in the FFA concentrations. A low-cost and simple treatment of preserving rice bran that also considers the safety of defatted rice bran intended for consumption was investigated and the heat treatment method was selected. Milled rice bran was treated at 100℃ for 1 h and stored at 30℃ for 6 months; the FFA concentration in the rice bran oil was suppressed to approximately 10%. At this concentration, FFAs do not notably corrode engine components and affect oil viscosity; therefore, rice bran oil can be used as a fuel. Although there is no noticeable difference between the properties of Japanese rice and the New Rice for Africa (NERICA), we confirmed that the same effect could be achieved in NERICA. Overall, heat treatment effectively inhibited rice bran deterioration during storage, by suppressing the increase in FFA concentration in the oil and reducing oxidative damage., Japanese Society for Tropical Agriculture
Tropical Agriculture and Development, 2022, [Reviewed]

Energy payback time analysis and return on investment of off-grid photovoltaic systems in rural areas of Tanzania
Yooko Tsuchiya; Tobias A. Swai; Fumiyuki Goto, Lead, Owing to a vast land area, abundant solar radiation, and overseas support, the use of photovoltaics (PV) as a source of electricity is rapidly spreading in Sub-Saharan Africa. To understand the actual application situations, two cases of PV electricity generation systems in the rural areas of Tanzania were investigated via life cycle assessment. The energy payback time (EPBT) calculated from the utilisation of the PV systems, taking into consideration the inventory data of the International Energy Agency, revealed an unsatisfactory performance. Specifically, the EPBTs based on actual power generation at the sites greatly exceeded the expected value-based solar radiation calculations. At one site, the EPBT even exceeded the lifespan of the PV panel, indicating that energy recovery was impossible. With respect to the energy return on investment (EROI), it was evident that the income generated from the investments was insufficient to cover current operational costs, suggesting negative returns on investment. Conversely, diesel power generation appeared to be more suitable in these areas owing to the low and discontinuous demand for power. Furthermore, the operation of a more efficient PV system would require improved maintenance and management, as well as an increase in the demand for electricity.
Sustainable Energy Technologies and Assessments, Dec. 2020, [Reviewed]

Extraction of bio-fuel oil using high pressure CO2 and expanded hexane with CO2　　　　　　　　　　　　　　　
Idzumi Okajima; Shinya Takano; Yoko Tsuchiya; Takeshi Sako
Proceeding of the 11th International Conference on Separation Science and Technology in Busan, Nov. 2017

Pelletization of brown coal and rice bran in Indonesia: Characteristics of the mixture pellets including safety during transportation
Yooko Tsuchiya; Takahiro Yoshida, Lead, Elsevier BV
Fuel Processing Technology, Feb. 2017, [Reviewed]

Study on the Performance and Emissions of Diesel Engines Fueled by Jatropha Crude Oil Extracted with Supercritical CO₂
Tsuchiya Yooko; Okajima Idzumi; Sako Takeshi, Lead, With the goal of utilizing Jatropha crude oil (JCO) as a fuel in diesel engines, we have developed a technique for the selective extraction of triglycerides from Jatropha seeds, containing glycerides, free fatty acids, phosphorus, and water, using supercritical CO₂ extraction. To evaluate the feasibility of using the extracted JCO as a substitute for diesel fuel in diesel engines, the performance and emission characteristics of a diesel engine fueled by JCO/diesel blends were investigated. We found that it was not possible to completely remove the free fatty acid and moisture content from the JCO using the supercritical extraction method. In addition, no remarkable differences in thermal efficiency and specific fuel consumption were observed between JCO and diesel fuel. On the other hand, the amount of CO emissions from JCO was lower than that from the diesel fuel, owing to the complete combustion of CO at high engine loads. Based on the results of the previous study, JCO appears to be a viable substitute for diesel in diesel engines, although the long-term performance of the engine fueled by JCO needs to be further evaluated., The Society of Chemical Engineers, Japan
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2016, [Reviewed]

Improved Jatropha Oil Separation by Entrainer-Aided Supercritical CO₂ Extraction
Tsuchiya Yooko; Sako Takeshi; Okajima Idzumi; Yamamoto Akira, Lead, With the aim of utilizing Jatropha oil as fuel for thermal power generation, we have developed a technique for the selective extraction of triglycerides from Jatropha seeds, which contain glycerides, free fatty acids, phosphorus, and water, using supercritical CO₂ extraction. The effects of particle size, moisture content of Jatropha seeds, and entrainers, were examined. We found that using tetrahydrofuran (THF) as an entrainer led to reduce extraction times. Specifically, the extraction time was significantly decreased with the use of 7.5 wt% THF and a CO₂ flow rate of 5.8 g/min. Supercritical CO₂ extraction technology with the addition of THF represents an inexpensive selective extraction process from feedstocks containing oil., The Society of Chemical Engineers, Japan
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2015, [Reviewed]

Solubility Characteristics and Selective Extraction of Jatropha Oil by Super- and Subcritical CO₂ Extraction
Tsuchiya Yooko; Sako Takeshi; Okajima Idzumi; Yamamoto Akira, Lead, With the aim of promoting bio-fuel production technologies, particularly those using bio-oil as a fuel for thermal power generation, we have developed a technique for bio-fuel extraction from Jatropha. The selective extraction of triglycerides from Jatropha seeds (a mixture of moisture, free fatty acids, and phosphorus) is required for developing new less-costly processes that avoid the oil refining treatment typically used in conventional technologies. The solubilities of Jatropha oil in super- and subcritical CO₂ were measured, and the potential of CO₂ to selectively extract triglycerides from Jatropha seeds by controlling the extraction time was revealed. The Jatropha oil extraction experiments were carried out under both super- and subcritical CO₂ conditions using a flow-type apparatus. The amounts of Jatropha oil extracted by supercritical CO₂from 35 to 50°C were a little bit larger than the amount by subcritical CO₂ (25°C). Judging from the experimental data of the composition of the extract, subcritical CO₂ has a potential to extract triglycerides from Jatropha seeds selectively by controlling the extraction time., The Society of Chemical Engineers, Japan
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2013, [Reviewed]

Energy Balance for Management of Jatropha Plantations based on Field Cultivation Experiment in Palawan, the Philippines
TSUCHIYA Yooko; GODA Makoto; IMOU Kenji, Lead, For the promotion of the development and utilization of biofuels, it is important to secure a supply of biomass feedstock from which biofuels will be derived. In the present study, analysis of the energy balance and of CO₂ emissions for the management of Jatropha plantations was carried out, assuming that the Jatropha plantations would be developed in the Philippines where the climatic and farming conditions are suitable for the plant growth. The evaluation was conducted for the reclamation of farmland, Jatropha cultivation, and oil mill processing. The value of the energy profit ratio (EPR), defined as the ratio of energy input to energy output for the entire system, was determined to be 7.3, which could be increased by reducing chemical fertilization. However, because biodiesel fuel conversion consumes a substantial amount of energy, production of unprocessed oil may be preferable. CO₂ emissions for the production of Jatropha oil were estimated at 20 g CO₂/MJ, with a low negative environmental impact., Japanese Society for Tropical Agriculture
Tropical Agriculture and Development, 2013, [Reviewed]

Leaching characteristics of woody biomass ash after low-temperature combustion
Yooko Tsuchiya; Hisashi Abe; Hisashi Shimogaki, Lead, Springer Science and Business Media LLC
Journal of Material Cycles and Waste Management, 07 May 2011, [Reviewed]

H2SO4/CaO-Catalyzed Process for Biodiesel Production from High Acid Value Jatropha curcas Crude Oil
Tsuchiya Yooko; Kaneki Yuichi; Yamakoshi Yukiyasu, Lead, Transesterification is affected by the free fatty acid (FFA) content of vegetable oils or animal fats. A two-step H₂SO₄/CaO-catalyzed methanolysis process has been employed for the efficient conversion of Jatropha curcas crude oil, which has an acid value greater than 30 mg KOH/g, into fatty acid methyl ester (FAME). The effects of H₂SO₄ catalyst addition, of FFA, and of the water produced as a by-product are investigated. The maximum esterification activity of the initial FFA content are obtained with 0.5–1.2 wt% H₂SO₄ relative to Jatropha crude oil. The esterification product is used as the substrate for a second, CaO-catalyzed, transesterification. Water usually has an adverse effect on transesterification; however, this study proves that the effect of water is negligible. Using this two-step methanolysis reaction, a FAME level greater than 96% can be obtained in the final product., The Society of Chemical Engineers, Japan
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2011, [Reviewed]

Energy Consumption at Procurement of Wood Pellets in Japan
Tsuchiya Yooko; Karasawa Kunihiko; Satoh Toshiki; Tsuji Nobuyuki, Lead, Domestic unused wood material possesses significant potential as an alternative feedstock to substitute for fossil fuel in combustion fuel production. However, fuel conversion from the unused wood is not very advanced due to economic reasons. In this paper, energy consumption of wood pellet procurement was evaluated. The case analysis of three wood pellet factories (CERES, Inc., Hokkaido Date-shi, and Asyoro-cho) and a wood chip factory (CERES, Inc.) was carried out. The percentage of energy content of pellet procurement is about 20% of output, which is a remarkably high percentage compared with overseas pellet procurement. Energy consumption at procurement included manufacturing and operating energy of tree felling and transport, pellet manufacture and pellet distribution, and output energy is given by the calorific value of the supplied pellet. It was found that the ratio of electric power, which affects the operation of the pellet factory, was highest in input energy. In comparison with chip manufacturing, the energy consumption ratio of pellet procurement was slightly lower. For increased energy efficiency, it is necessary to improve domestic wood fuel procurement fundamentally., The Japan Wood Research Society
Mokuzai Gakkaishi, 2010, [Reviewed]

Inorganic elements in typical Japanese trees for woody biomass fuel
Yooko Tsuchiya; Hisashi Shimogaki; Hisashi Abe; Akira Kagawa, Lead, Springer Science and Business Media LLC
Journal of Wood Science, 15 Oct. 2009, [Reviewed]

薪/ペレットストーブ燃焼灰の安全性評価
土屋 陽子, Lead, 東京 : 農業電化協会
農業電化, Apr. 2009, [Invited]

[7] 最近の研究から「分子シミュレーションによる潜熱蓄熱物質の探索」
吉井 範行; 土屋 陽子, 分子シミュレーション学会
アンサンブル, 2005

A study on the supercooling release of an encapsulated ice thermal storage system　　　　　　　　　　　　　　　
Y. Tsuchiya; H. Hasegawa; K. Sasaki, Lead
Proceedings of 14th international conference on the properties of water and steam in Kyoto, 2004, [Reviewed]

Prediction of Thermal Properties and Effect of OH Substituent for Poly(vinyl alcohol)s by Molecular Dynamics Calculations
Tsuchiya Yooko; Yoshii Noriyuki; Iwatsubo Tetsushiro, Lead, Since heat storage technology contributes greatly to the effective use of energy, we are attempting to develop latent heat storage materials. If computer simulations enable the estimation of material properties prior to experiments, they will provide us with very effective tools for the development of new materials. We use molecular dynamics calculations to predict the melting points and latent heats of fusion, which are crucial thermal properties for evaluating the suitability of heat-storage materials. As the object of calculation, poly(vinyl alcohol) (PVA) was chosen, because polymer materials are effective in that they can be made to cover all temperature ranges by changing the molecular weight. The melting points were determined from the volume change, and the latent heats of fusion were determined from the internal energy. As for these calculations, it was ascertained that these thermal properties were suitable values in comparison with the results of actual calorimetry. From the comparative calculation of the polymer consistent force field (PCFF) and optimized potentials for liquid simulations (OPLS) force field, it was shown that the intermolecular potential could be simplified. Moreover, the stability of the structural isomer of PVA and the state of the hydrogen bond were evaluated, because a strong intermolecular bond leads to structural stability and a high melting temperature., The Japan Society of Applied Physics
Japanese Journal of Applied Physics, 2004, [Reviewed]

Effect of freeze-thaw repetitions upon the supercooling release ability of ice-nucleating bacteria
Yooko Tsuchiya; Kazuhiro Sasaki; Hiromi Hasegawa, Lead, Elsevier BV
Journal of Bioscience and Bioengineering, Jan. 2004, [Reviewed]

Prediction of the Latent Heat of n-Alkanes Using the Molecular Dynamics Method
Tsuchiya Yooko; Hasegawa Hiromi; Iwatsubo Tetsushirou, Lead, With the ultimate goal of developing thermal storage materials by means of computer simulation, we attempt to predict a material’s melting point and latent heat of fusion, both of which are important properties for evaluating a thermal storage material. Molecular dynamics calculations using the NPT ensemble were performed to investigate the melting process of n-alkanes having carbon numbers of 8 to 18. A technique for determining the melting point from a radial distribution function that reflects the arrangement of carbon atoms has already been reported. Based on our previous study, we attempted to predict the latent heat of fusion from the internal energy. A calculation method that reflects the actual melting phenomenon was used and a precise value for the qualitative tendency of the latent heat was obtained., The Japan Society of Applied Physics
Japanese Journal of Applied Physics, 2003, [Reviewed]

Study on Advanced Encapsulated Ice System: 3rd report : Stability of the supercooling release agent using the microorganisms
TSUCHIYA Yooko; HASEGAWA Hiromi; SASAKI Kazuhiro; KUROSAKI Kenji, Lead, As regards the supercooling phenomenon, which is important factor in encapsulated ice system, we studied the supercooling release agent using the microorganism. Though the ice nucleation active bacteria had the high super cooling releasing ability, it was proved that the performance gradually lowered in long terms continuous use, when the live microorganisms were used. In order to improve the sustainability of the super-coolingreleasing ability through the control of the metabolism of the micro-organisms, the effects of typical sterilization methods were compared using live E. ananas of which the releasing ability is the highest of some ice nucleation active bacteria. It was found that ultraviolet and gamma-ray irradiations produced excellent results in the thousands repeated freezing-melting tests of water to which sterilized E. ananas were added.
In addition, some thousands of heat storage capsules with ultraviolet sterilized E. ananas were built a prototype. From the evaluation of the total heat exchange of encapsulated ice system, high supercooling releasing ability was indicated., Japan Society of Refrigerating and Air Conditioning Engineers
Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers, 2003, [Reviewed]

微生物粉末を利用し,「氷蓄熱システム」の効率を向上 環境にやさしい過冷却解除剤の開発を目指して
土屋陽子; 長谷川浩巳; 佐々木和裕, Lead
建築設備と配管工事, 2002, [Invited]

Application of ice - nucleating bacteria in encapsulated ice thermal storage
SASAKI Kazuhiro; TSUCHIYA Yooko
バイオサイエンスとインダストリー = Bioscience & industry, 01 Sep. 2001, [Invited]

Prediction of the melting point of n-alkanes using the molecular dynamics method
Y. Tsuchiya; H. Hasegawa; T. Iwatsubo, Lead, For molecular dynamics simulations, the NPT ensembles were used with the control variables of number of particles N, temperature T and pressure P to trace the melting process of n-alkane with carbon numbers of 8-16. The molecular shape of n-alkane with the explicit-hydrogen representation has an accurate description for melting points from the radial distribution function reflecting carbon atom positions. The solid-liquid phase transformations were also identified. The molecular dynamics calculations confirmed the effectiveness of periodic boundary conditions.
Journal of Chemical Physics, 2001, [Reviewed]

Study on Supercooling Release in Encapsulated Ice System
TSUCHIYA Yooko; HASAGAWA Hiromi; IWATSUBO Tetsushiro, Lead, As regards the super cooling phenomena which is important matter in encapsulated ice system, the system efficient suffering from the super cooling release of water was estimated and the performance of release reagent was determined. The following conclusions were reached.
(1) It was clear that the COP of heat storing of the system fell by 3% with decreasing release temperature by 1 degree centigrade.
(2) As a result of determinations about release reagents, Xanthomonas campestris (ice nuclei bacteria) was very effective in release the super cooling state, and the performance was maintained in continuous application of freezing and melting., Japan Society of Refrigerating and Air Conditioning Engineers
Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers, 2001, [Reviewed]

カプセル型氷蓄熱システムの過冷却解除に関する研究(第2報)微生物を利用した過冷却解除剤
土屋 陽子; 長谷川 浩巳; 佐々木 和裕, Lead, 東京 : 日本冷凍空調学会
日本冷凍空調学会論文集 = Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers, 2001, [Reviewed]

Computation of thermal properties for PCM using molecular dynamics method　　　　　　　　　　　　　　　
Y. Tsuchiya; H. Hasegawa; T. Iwatsubo, Lead
Proceedings of 8th international conference on thermal energy storage in Stuttgart, 2000, [Reviewed]

Preparation and evaluation of inorganic-organic combined membrane for high temperature gas separation　　　　　　　　　　　　　　　
Y. Yasuda, H. Moritsua, Y. Izaki, Lead
Proceedings of 5th International conference on inorganic membranes in Nagoya, 1998, [Reviewed]

Preparation and evaluation of CO2-permselective membrane for high temperature gas separation
Yooko Yasuda; Hideto Moritsuka; Yoshiyuki Izaki, Lead, With the greenhouse effect in mind, we have been studying the CO2 recovery thermal power generation system. In this system, it is necessary to recover CO2 from LNG reformed fuel gas using a high temperature gas separation system. By a trial calculation of the efficiency of a power generation plant with CO2 recovery system, it is appeared that membrane separation offered low power and low cost. A homogeneous silica-base membrane was obtained by the advanced sol-gel method with a polymer-hybrid. The gas separation factor of H2 to CO2 and the factor of N2 to CO2 was larger than 100 at 673 K. H2 permeability was on the order of 10-7 mol/m2·s·Pa order. This performance remained almost constant for 720 hours., JSME
JSME International Journal, Series B: Fluids and Thermal Engineering, 1998, [Reviewed]

Thermodynamic stability of (La1-xMx)2CuOy (M = Ba, Sr and Ca) solid solution and the 1 8 anomaly
Yasushi Idemoto; Yooko Yasuda; Kazuo Fueki, The enthalpy changes of formation, ΔH, of (La1-xMx)2CuOy from the simple oxides La2O3, MO and CuO were determined by the solution calorimetric method using a perchloric acid solution. The enthalpies of formation ΔfH0 of (La1-xMx)2CuOy (M = Ba, Sr and Ca) were calculated from ΔH and ΔfH0 of the simple oxides. ΔH for LSCO decreased with increasing x while ΔH for LBCO deviated upwards from the straight line in the vicinity of x = 0.0625, and indicated the thermodynamic instability in a compositional range 0.04 < x < 0.08. The maximum instability energy was 3 kJ/mol, and we discuss the instability of the electronic phase that would be the main cause. © 1995.
Physica C: Superconductivity and its applications, 20 Feb. 1995, [Reviewed]

Calorimetric study on thermodynamic stability of La2-xMxM′Cu2Oy (M, M′Sr, Ca) solid solution
Yasushi Idemoto; Yooko Yasuda; Kazuo Fueki, The standard enthalpy of formation ΔfH0, of La2-xMxM′Cu2Oy (M, M′Sr, Ca) solid solution was determined by the solution calorimetric method. The enthalpy change of the formation reaction ΔH, of LSSCO and LCCCO from simple oxides, were calculated as a function of x. LSSCO exhibited a remarkable enthalpy change and a dependence of ΔH on x, whereas the enthalpy change and its dependence on x of LSCCO and LCCCO were small. A correlation was found between the heat of reaction -ΔH and the copper valence. These findings were interpreted in terms of the preference of Sr and Ca to the 2a sites. © 1995.
Physica C: Superconductivity and its applications, 15 Jan. 1995, [Reviewed]

Standard enthalpies of formation of member oxides in the Bi-Sr-Ca-Cu-O system
Yasushi Idemoto; Kenji Shizuka; Youka Yasuda; Kazuo Fueki, The standard enthalpies of formation of member oxides in the Bi-Sr-Ca-Cu-O system have been determined by the solution calorimetric method. On the basis of enthalpy, the chemical stability of member oxides was discussed. It was found that the chemical stability increases in the order of 2223 < 2212 < 2201. The complex oxides formed from SrO were found to be more stable than those formed from CaO. © 1993.
Physica C: Superconductivity and its applications, 10 Jun. 1993, [Reviewed]

PVリユース・リサイクルに向けた検討─LCA分析とPVセルを対象とした簡易型性能評価手法の提案─　　　　　　　　　　　　　　　
土屋陽子; 石井徹之
電力中央研究所研究報告, Mar. 2019, [Reviewed]
Lead

2050年を見据えた再生可能エネルギー大量導入による余剰電力の用途に関する調査と一考察　　　　　　　　　　　　　　　
坂東茂; 芦澤正美; 八太啓行; 吉葉史彦; 米沢力道; 石塚徹也; 藤原彩; 土屋陽子; 山本博已; 根本孝七; 古澤健
電力中央研究所研究報告, Jul. 2017, [Reviewed]

洋上・陸上ウィンドファームのライフサイクルCO2排出量評価　　　　　　　　　　　　　　　
今村栄一; 坂東茂; 土屋陽子; 池野正明
電力中央研究所研究報告, Apr. 2015, [Reviewed]

バイオマス残渣の燃料利用技術の探索 : 褐炭-バイオマス残渣混合ペレットの試作
土屋 陽子; 松本 伯夫
電力中央研究所研究報告, Apr. 2015, [Reviewed]
Lead

ジャトロファ燃料油のディーゼルエンジンへの適用性評価(その2)ジャトロファ混合燃料のエンジン性能と排ガス特性
土屋 陽子; 寺添 斉
電力中央研究所研究報告, Mar. 2014, [Reviewed]
Lead

メガソーラー発電技術のライフサイクルCO2排出量評価　　　　　　　　　　　　　　　
今村栄一; 土屋陽子
電力中央研究所研究報告, May 2013, [Reviewed]

ジャトロファ燃料油混焼発電のエネルギー効率とコスト分析 : 風力・メガソーラーとの比較
土屋 陽子; 今村 栄一
電力中央研究所研究報告, May 2013, [Reviewed]
Lead

ジャトロファ燃料油の ディーゼルエンジンへの適用性評価
土屋 陽子; 寺添 斉
電力中央研究所研究報告, May 2013, [Reviewed]
Lead

バイオ燃料生産に向けた油脂抽出技術の開発 : 超臨界流体を利用した植物油脂抽出の可能性評価
土屋 陽子; 寺添 斉; 吉原 利一
電力中央研究所研究報告, Jun. 2012, [Reviewed]
Lead

バイオ燃料生産に向けたジャトロファプランテーションの成立性評価--ジャトロファ油脂生産のエネルギー収支分析
土屋 陽子; 吉原 利一
電力中央研究所研究報告, May 2011, [Reviewed]
Lead

木質バイオマスのエネルギー利用における貯蔵・輸送行程での温室効果ガス排出量の再評価
吉原 利一; 土屋 陽子
電力中央研究所研究報告, May 2011, [Reviewed]

木質ペレット製造のエネルギー収支分析
土屋 陽子; 天野 治
電力中央研究所研究報告, Apr. 2010, [Reviewed]
Lead

未利用油脂からのバイオディーゼル燃料(BDF)製造--H2SO4-CaO触媒法の最適化と未利用油脂への適用性評価
土屋 陽子
電力中央研究所研究報告, Apr. 2010, [Reviewed]
Lead

バイオディーゼル燃料(BDF)製造に関する技術評価--製造技術のEPR評価とアブラギリ類由来BDFの性状把握
土屋 陽子; 松村 秀幸; 吉原 利一
電力中央研究所研究報告, Jul. 2009, [Reviewed]
Lead

木質バイオマス燃焼灰の安全性評価(その3)低温燃焼時における微量成分の溶出性評価
土屋 陽子; 下垣 久
電力中央研究所研究報告, Apr. 2009, [Reviewed]
Lead

木質バイオマス燃焼灰の安全性評価(その2)木質灰の無機成分分析と溶出性評価
土屋 陽子; 寺添 斉; 下垣 久
電力中央研究所研究報告, Jun. 2008, [Reviewed]
Lead

木質バイオマス燃焼灰の安全性評価--原料樹木の無機成分分析に関する予備的検討
土屋 陽子; 寺添 斉; 小林 卓也
電力中央研究所研究報告, May 2007, [Reviewed]
Lead

分子シミュレーションによる温熱用潜熱蓄熱物質の探索--分子モデリングと物性予測
土屋 陽子; 吉井 範行; 長谷川 浩巳
電力中央研究所研究報告, May 2006, [Reviewed]
Lead

温熱用新蓄熱物質の開発--蓄熱技術の調査と蓄熱物質の目標物性値の検討
長谷川 浩巳; 土屋 陽子; 斎川 路之
電力中央研究所研究報告, May 2006, [Reviewed]

蓄熱物質探索に向けたコンピュータシミュレーションによる物性予測(第3報)ポリマーの融解挙動と熱物性値との相関
土屋 陽子; 吉井 範行; 岩坪 哲四郎
電力中央研究所研究報告, May 2005, [Reviewed]
Lead

蓄熱物質探索に向けたコンピュータシミュレーションによる物性予測(第2報)融解潜熱に関する予測手法の拡張と構造因子の影響
土屋 陽子; 長谷川 浩巳; 吉井 範行
電力中央研究所研究報告, Aug. 2003, [Reviewed]
Lead

カプセル型氷蓄熱システムの高性能化に向けた技術開発(第3報)微生物を利用した過冷却解除剤の安定性評価
土屋 陽子; 長谷川 浩巳; 佐々木 和裕
電力中央研究所研究報告, Sep. 2002, [Reviewed]
Lead

カプセル型氷蓄熱システムの性能評価手法の開発(第1報)蓄冷熱シミュレーションプログラムの開発
長谷川 浩巳; 土屋 陽子; 岩坪 哲四郎
電力中央研究所研究報告, Apr. 2002, [Reviewed]

カプセル型氷蓄熱システムの性能評価手法の開発(第2報)放冷熱シミュレーションプログラムの開発
長谷川 浩巳; 岩坪 哲四郎; 土屋 陽子
電力中央研究所研究報告, Apr. 2002, [Reviewed]

コンピュータシミュレーションによる潜熱蓄熱物質探索--自由エネルギー計算を用いた結晶構造予測、熱物性推算手法の提案
吉井 範行; 土屋 陽子; 長谷川 浩巳
電力中央研究所研究報告, Aug. 2001, [Reviewed]

氷蓄熱カプセル充填蓄熱槽の蓄冷熱量に及ぼすブライン温度とカプセル外径の影響
長谷川 浩巳; 土屋 陽子; 岩坪 哲四郎
電力中央研究所研究報告, Apr. 2001, [Reviewed]

水素分離型タービン発電システムの提案(第2報)水蒸気供給方式水素分離型タービン発電システムの提案と性能解析
森塚 秀人; 土屋 陽子
電力中央研究所研究報告, Apr. 2001, [Reviewed]

カプセル型氷蓄熱システムの高性能化に向けた技術開発 - 第2報 微生物を利用した過冷却解除剤の性能評価 -
土屋陽子; 長谷川浩巳; 佐々木和裕; 岩坪哲四郎
電力中央研究所研究報告, 2001, [Reviewed]
Lead

潜熱蓄熱物質探索に向けたコンピュータシミュレーションによる物性予測--分子動力学計算による融点及び融解潜熱の算出
土屋 陽子; 岩坪 哲四郎; 長谷川 浩巳
電力中央研究所研究報告, Mar. 2000, [Reviewed]
Lead

カプセル型氷蓄熱システムの高性能化に向けた技術開発--過冷却の影響評価と解除剤の探索
土屋 陽子; 長谷川 浩巳; 岩坪 哲四郎
電力中央研究所研究報告, Mar. 2000, [Reviewed]
Lead

水-塩化ナトリウム系共晶潜熱蓄熱物質の凝固・融解基本特性の検討
長谷川 浩巳; 岩坪 哲四郎; 土屋 陽子
電力中央研究所研究報告, Feb. 1999, [Reviewed]

高温ガス分離膜の試作と性能評価
土屋 陽子; 伊崎 慶之; 三巻 利夫
電力中央研究所研究報告, Feb. 1999, [Reviewed]
Lead

潜熱蓄熱物質探索に向けたコンピュータシミュレーションによる分子設計手法の調査・評価─分子シミュレーション手法の調査とn-octaneの融点予測─　　　　　　　　　　　　　　　
土屋陽子; 岩坪哲四郎
電力中央研究所研究報告, Apr. 1998, [Reviewed]
Lead

多孔質高温水素分離膜の試作と性能評価－シリカ膜の合成と細孔径の制御　　　　　　　　　　　　　　　
安田陽子; 伊崎慶之; 幸田栄一
電力中央研究所研究報告, Jun. 1996, [Reviewed]
Lead

多孔質高温水素分離膜の研究動向と今後の方向性について　　　　　　　　　　　　　　　
安田陽子; 伊崎慶之; 森塚秀人
電力中央研究所研究報告, Apr. 1995, [Reviewed]
Lead

国際援助による太陽光発電（PV）システム導入の実態調査－タンザニア農村部にける事例─　　　　　　　　　　　　　　　
土屋陽子; トビアス スワイ
日本アフリカ学会第60回学術大会, 13 May 2023
20230513, 20230514

バイオ燃料混焼発電のエネルギー効率とCO2排出削減効果　　　　　　　　　　　　　　　
土屋陽子
平成26年度火力原子力発電大会, 23 Oct. 2014
20141023, 20141024

超臨界・亜臨界二酸化炭素を用いたジャトロファ中の燃料油抽出　　　　　　　　　　　　　　　
山本亮; 土屋陽子; 岡島いづみ; 佐古猛
化学工学会第79年会, Mar. 2014
2014, 2014

高圧二酸化炭素を用いたジャトロファ中の油分抽出　　　　　　　　　　　　　　　
山本亮; 土屋陽子; 岡島いづみ; 佐古猛
分離技術会年会2013, May 2013

バイオマス混焼発電のエネルギー効率・経済性評価　　　　　　　　　　　　　　　
土屋陽子; 今村栄一
第32回エネルギー・資源学会研究発表会, Jun. 2013
2013, 2013

微細藻類を利用したCO₂再資源化のエネルギー・環境評価　　　　　　　　　　　　　　　
土屋陽子; 森田仁彦; 井内正直
第31回エネルギー・資源学会研究発表会, Jun. 2012
201206, 201206

高圧二酸化炭素による米ぬか中の米ぬか油の抽出　　　　　　　　　　　　　　　
山本亮; 土屋陽子; 岡島いづみ; 佐古猛
化学工学会横浜大会, Aug. 2012
2012, 2012

油糧植物からのバイオ燃料生産─LCA評価と燃料合成─　　　　　　　　　　　　　　　
土屋陽子
第6回再生可能エネルギー世界展示会, 05 Dec. 2011

ジャトロファプランテーションの成立性評価-油脂調達のエネルギー収支および二酸化炭素排出量-　　　　　　　　　　　　　　　
土屋陽子; 合田真; 芋生憲司
第30回エネルギー・資源学会研究発表会, Jun. 2011
201106, 201106

バイオペレット燃料のエネルギー収支分析　　　　　　　　　　　　　　　
土屋陽子; 天野治; 唐沢邦彦; 佐藤寿樹; 辻宣行
第29回エネルギー・資源学会研究発表会, Jun. 2010
201006, 201006

木質ペレット製造のEPR評価─赤城ペレット工場の事例分析─　　　　　　　　　　　　　　　
土屋陽子; 唐沢邦彦
第3回EPR部会シンポジウム, Sep. 2009

硫酸-酸化カルシウム触媒を用いたバイオディーゼルの製造　　　　　　　　　　　　　　　
金木裕一; 土屋陽子; 山越幸康
第18回日本エネルギー学会大会, Jul. 2009
20090730, 20090731

バイオディーゼル燃料(BDF)製造技術のEPR評価　　　　　　　　　　　　　　　
土屋陽子; 金木裕一; 山越幸康
第28回エネルギー・資源学会研究発表会, Jun. 2009
200906, 200906

建築製材に含まれる無機元素成分の測定-低温燃焼時における微量成分の溶出性評価-　　　　　　　　　　　　　　　
土屋陽子; 安部久; 下垣久
第59回日本木材学会大会, Mar. 2009
200903, 200903

木質バイオマス燃焼灰の無機成分分析と溶出性評価　　　　　　　　　　　　　　　
土屋陽子; 下垣久; 安部久
第27回エネルギー・資源学会研究発表会, Jun. 2008
200806, 200806

樹種および生育環境による樹木内無機成分の組成変化 第2報　　　　　　　　　　　　　　　
土屋陽子; 下垣久; 安部久
第58回日本木材学会大会, Mar. 2008
200803, 200803

地球温暖化は止められるのか─私たちの暮らしと省エネルギー─　　　　　　　　　　　　　　　
土屋陽子
エネルギー・環境セミナー, 26 Jan. 2008, [Invited]

樹種および生育環境による樹木内無機成分の組成変化　　　　　　　　　　　　　　　
土屋陽子; 下垣久; 安部久; 香川聡
第57回日本木材学会大会, Aug. 2007
200708, 200708

木質燃焼灰の安全性評価に向けた樹木および燃焼灰中に含まれる無機元素の測定　　　　　　　　　　　　　　　
土屋 陽子; 下垣 久; 安部 久; 香川 聡
第26回エネルギー・資源学会研究発表会, 13 Jun. 2007
20070613, 20070613

ナノスケールによる物性制御へのアプローチと材料設計　　　　　　　　　　　　　　　
土屋陽子; 吉井範行
第4回ナノサイエンス実証研究公開シンポジウム, Apr. 2006

分子シミュレーションによる潜熱蓄熱物質の探索　　　　　　　　　　　　　　　
吉井範行; 土屋陽子
分子シミュレーション討論会, Nov. 2005

分子動力学計算によるPoly(vinyl alcohol)の融解シミュレーション-熱力学特性の解析による蓄熱材設計へのアプローチ-　　　　　　　　　　　　　　　
土屋陽子; 吉井範行
第54回高分子討論会, Sep. 2005
200509, 200509

分子動力学計算によるPolyethylene,Poly(vinyl alcohol)の融解シミュレーション-潜熱蓄熱材の開発に向けたコンピュータシミュレーションによる物性制御-　　　　　　　　　　　　　　　
土屋陽子; 吉井範行
第54回高分子学会年次大会, May 2005
200505, 200505

分子動力学計算によるPoly(vinyl alcohol)の熱力学特性-ポリマー潜熱蓄熱材の開発に向けたコンピュータシミュレーションによる物性予測-　　　　　　　　　　　　　　　
土屋陽子; 吉井範行
第53回高分子討論会, Sep. 2004
200409, 200409

蓄熱材開発に向けたポリマーの融解シミュレーションと物性評価　　　　　　　　　　　　　　　
土屋陽子; 吉井範行; 長谷川浩巳
第52回高分子学会, 2003
2003, 2003

CO₂回収のための水素分離型タービン発電システムの提案 第3報 膜改質器への水蒸気供給方式　　　　　　　　　　　　　　　
森塚秀人; 土屋陽子
第16回ガスタービン秋季講演会, Oct. 2001
200110, 200110

分子動力学シミュレーションによる融点融解潜熱予測　　　　　　　　　　　　　　　
吉井範行; 土屋陽子; 長谷川浩巳; 岩坪哲四郎
第14回分子シミュレーション討論会講演要旨集, Jan. 2001
20010116, 20010118

氷蓄熱カプセルへの氷核形成細菌利用に関する基礎的検討　　　　　　　　　　　　　　　
黒崎健治; 篠崎開; 佐々木和裕; 大村直也; 斉木博; 土屋陽子; 長谷川浩巳
化学工学会第66年会, 2001
2001, 2001

分子動力学法によるn-alkaneの融解シミュレーション　　　　　　　　　　　　　　　
土屋陽子; 長谷川浩巳; 岩坪哲四郎
第49回高分子学会年次大会, May 2000
200005, 200005

分子動力学法によるn-OCTANEの融解シミュレーション　　　　　　　　　　　　　　　
土屋陽子; 長谷川浩巳; 岩坪哲四郎; 高橋伸幸
第48回高分子討論会, Oct. 1999
199910, 199910

共晶組成の潜熱蓄熱物質の固相成長挙動　　　　　　　　　　　　　　　
長谷川浩巳; 土屋陽子; 岩坪哲四郎
日本冷凍空調学会学術講演会講演論文集, 1998
1998, 1998

潜熱蓄熱材の融解・凝固現象に関する分子シミュレーション　　　　　　　　　　　　　　　
岩坪哲四郎; 土屋陽子
第1回分子伝熱討論会, Dec. 1997

セラミック高温水素分離膜の開発と性能評価　　　　　　　　　　　　　　　
安田陽子; 伊崎慶之
第70回日本化学会, Mar. 1996
199603, 199603