Research Output 1983 2019

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2019
3 Citations (Scopus)

A three-dimensional numerical model to simulate Iranian NW Sabalan geothermal system

Seyedrahimi-Niaraq, M., Doulati Ardejani, F., Noorollahi, Y., Porkhial, S., Itoi, R. & Jalilinasrabady, S., Jan 1 2019, In : Geothermics. 77, p. 42-61 20 p.

Research output: Contribution to journalArticle

geothermal system
Numerical models
Hot springs
well
land surface
2 Citations (Scopus)

Modelling of heat supply for natural gas pressure reduction station using geothermal energy

Noorollahi, Y., Ghasemi, G., Kowsary, F., Roumi, S. & Jalilinasrabady, S., Sep 14 2019, In : International Journal of Sustainable Energy. 38, 8, p. 773-793 21 p.

Research output: Contribution to journalArticle

Geothermal heat pumps
Geothermal energy
Natural gas
Pressure drop
Tubes (components)
2018
4 Citations (Scopus)

A comprehensive approach for wind power plant potential assessment, application to northwestern Iran

Mohammadzadeh Bina, S., Jalilinasrabady, S., Fujii, H. & Farabi-Asl, H., Dec 1 2018, In : Energy. 164, p. 344-358 15 p.

Research output: Contribution to journalArticle

Wind power
Power plants
Turbines
Wind turbines
Economic analysis
5 Citations (Scopus)

Classification of geothermal resources in Indonesia by applying exergy concept

Mohammadzadeh Bina, S., Jalilinasrabady, S., Fujii, H. & Pambudi, N. A., Oct 1 2018, In : Renewable and Sustainable Energy Reviews. 93, p. 499-506 8 p.

Research output: Contribution to journalArticle

Exergy
Geothermal power plants
Geothermal fields
Geothermal energy
Power plants
9 Citations (Scopus)

Exergoeconomic analysis and optimization of single and double flash cycles for Sabalan geothermal power plant

Mohammadzadeh Bina, S., Jalilinasrabady, S. & Fujii, H., Mar 1 2018, In : Geothermics. 72, p. 74-82 9 p.

Research output: Contribution to journalArticle

Geothermal power plants
geothermal power
Exergy
Fossil fuel power plants
exergy
6 Citations (Scopus)

Sustainability of geothermal power plant combined with thermodynamic and silica scaling model

Pambudi, N. A., Itoi, R., Jalilinasrabady, S. & Gürtürk, M., Jan 1 2018, In : Geothermics. 71, p. 108-117 10 p.

Research output: Contribution to journalArticle

Geothermal power plants
geothermal power
Sustainable development
power plant
silica

地熱坑井内非定常気液二相流動シミュレーションプログラムの開発と 不安定流動現象の数値解析

Translated title of the contribution: Development of simulation code of unsteady state steam-water two-phase flow in geothermal wellbores and numerical analysis of unstable discharge phenomenonYamamura, K., Itoi, R., Tanaka, T. & Iwasaki, T., Jan 1 2018, In : journal of the geothermal research society of japan. 40, 1, p. 17-31 15 p.

Research output: Contribution to journalArticle

unsteady state
two phase flow
steam
numerical analysis
water flow
2017
17 Citations (Scopus)

Energy, economic and environmental (3E) aspects of internal heat exchanger for ORC geothermal power plants

Mohammadzadeh Bina, S., Jalilinasrabady, S. & Fujii, H., Jan 1 2017, In : Energy. 140, p. 1096-1106 11 p.

Research output: Contribution to journalArticle

Geothermal power plants
Heat exchangers
Economics
Exergy
Evaporators

Evaluation of hydrological feature of reservoir in the Ogiri geothermal field by tracer test

Takayama, J., Tanaka, T. & Itoi, R., Jan 1 2017, In : Journal of the Geothermal Research Society of Japan. 39, 3, p. 129-140 12 p.

Research output: Contribution to journalArticle

hydrological feature
tracers
tracer
water flow
evaluation
Geothermal wells
Wellheads
wellhead
Flow rate
well
1 Citation (Scopus)

The effect of bidirectional opinion diffusion on social license to operate

Bahr, K. & Nakagawa, M., Aug 1 2017, In : Environment, Development and Sustainability. 19, 4, p. 1235-1245 11 p.

Research output: Contribution to journalArticle

license
dialogue
population modeling
communication
modeling
24 Citations (Scopus)

Thermo-economic evaluation of various bottoming ORCs for geothermal power plant, determination of optimum cycle for Sabalan power plant exhaust

Mohammadzadeh Bina, S., Jalilinasrabady, S. & Fujii, H., Nov 2017, In : Geothermics. 70, p. 181-191 11 p.

Research output: Contribution to journalArticle

Geothermal power plants
geothermal power
exergy
production cost
power plant
2 Citations (Scopus)
Wellheads
Two phase flow
Flow rate
Stabilization
Steam
2016
5 Citations (Scopus)

Determination of the origins and recharge rates of the Sfax aquifer system (southeastern Tunisia) using isotope tracers

Ayadi, R., Zouari, K., Saibi, H., Trabelsi, R., Khanfir, H. & Itoi, R., Apr 1 2016, In : Environmental Earth Sciences. 75, 8, 636.

Research output: Contribution to journalArticle

Radioactive tracers
isotope labeling
Tunisia
Aquifers
Isotopes
2015
21 Citations (Scopus)

Performance improvement of a single-flash geothermal power plant in Dieng, Indonesia, upon conversion to a double-flash system using thermodynamic analysis

Pambudi, N. A., Itoi, R., Jalilinasrabady, S. & Jaelani, K., Aug 1 2015, In : Renewable Energy. 80, p. 424-431 8 p.

Research output: Contribution to journalArticle

Geothermal power plants
Power plants
Exergy
Thermodynamics
Separators
5 Citations (Scopus)

Preliminary analysis of single flash combined with binary system using thermodynamic assessment: a case study of Dieng geothermal power plant

Pambudi, N. A., Itoi, R., Jalilinasrabady, S., Sirait, P. & Jaelani, K., Jan 1 2015, In : International Journal of Sustainable Engineering. 8, 4-5, p. 258-267 10 p.

Research output: Contribution to journalArticle

Geothermal power plants
Thermodynamics
Exergy
Power plants
Fluids
9 Citations (Scopus)

The behavior of silica in geothermal brine from Dieng geothermal power plant, Indonesia

Pambudi, N. A., Itoi, R., Yamashiro, R., CSS Syah Alam, B. Y., Tusara, L., Jalilinasrabady, S. & Khasani, J., Mar 1 2015, In : Geothermics. 54, p. 109-114 6 p.

Research output: Contribution to journalArticle

Geothermal power plants
geothermal power
brine
power plant
silica
2014
43 Citations (Scopus)

Exergy analysis and optimization of Dieng single-Flash geothermal power plant

Pambudi, N. A., Itoi, R., Jalilinasrabady, S. & Jaelani, K., Jan 1 2014, In : Energy Conversion and Management. 78, p. 405-411 7 p.

Research output: Contribution to journalArticle

Geothermal power plants
Exergy
Separators
Power plants
Turbines

Present status of geothermal development in Kyushu and its future

Itoi, R., Oct 1 2014, In : Journal of the Institute of Electronics, Information and Communication Engineers. 97, 10, p. 866-868 3 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)

Spatial analysis and multi-criteria decision making for regional-scale geothermal favorability map

Moghaddam, M. K., Samadzadegan, F., Noorollahi, Y., Sharifi, M. A. & Itoi, R., Apr 1 2014, In : Geothermics. 50, p. 189-201 13 p.

Research output: Contribution to journalArticle

spatial analysis
Decision making
decision making
fuzzy mathematics
prediction
1 Citation (Scopus)

Spatial variation in groundwater types in the Mt. Karang (West Java, Indonesia) volcanic aquifer system based on hydro-chemical and stable isotope (δD and δ18O) analysis

Syah Alam, B. Y. C. S. S., Itoi, R., Taguchi, S. & Yamashiro, R., Jan 1 2014, In : Modern Applied Science. 8, 6, p. 87-102 16 p.

Research output: Contribution to journalArticle

stable isotope
spatial variation
aquifer
recharge
groundwater
2013
16 Citations (Scopus)

Classification of geothermal energy resources in Japan applying exergy concept

Jalilinasrabady, S. & Itoi, R., Nov 1 2013, In : International Journal of Energy Research. 37, 14, p. 1842-1850 9 p.

Research output: Contribution to journalArticle

Geothermal energy
Exergy
Energy resources
Geothermal fields
Geothermal power plants
9 Citations (Scopus)

Experimental and CFD simulation of heat efficiency improvement ingeothermal spas

Jalilinasrabady, S., Palsson, H., Saevarsdottir, G., Itoi, R. & Valdimarsson, P., Jul 1 2013, In : Energy. 56, p. 124-134 11 p.

Research output: Contribution to journalArticle

Computational fluid dynamics
Heat exchangers
Water
District heating
Heat transfer coefficients
9 Citations (Scopus)

Spatial data analysis for exploration of regional scale geothermal resources

Moghaddam, M. K., Noorollahi, Y., Samadzadegan, F., Sharifi, M. A. & Itoi, R., Oct 1 2013, In : Journal of Volcanology and Geothermal Research. 266, p. 69-83 15 p.

Research output: Contribution to journalArticle

geothermal resources
Volcanoes
spatial data
volcanoes
occurrences
2012
4 Citations (Scopus)

A numerical simulation of a negative solar wind impulse: Revisited

Fujita, S., Yamagishi, H., Murata, K. T., Den, M. & Tanaka, T., Jan 1 2012, In : Journal of Geophysical Research: Space Physics. 117, 9, A09219.

Research output: Contribution to journalArticle

Solar wind
Ionosphere
International System of Units
solar wind
oscillation
57 Citations (Scopus)

Flash cycle optimization of Sabalan geothermal power plant employing exergy concept

Jalilinasrabady, S., Itoi, R., Valdimarsson, P., Saevarsdottir, G. & Fujii, H., Jul 1 2012, In : Geothermics. 43, p. 75-82 8 p.

Research output: Contribution to journalArticle

Geothermal power plants
geothermal power
exergy
Exergy
power plant
18 Citations (Scopus)

Water geochemistry and soil gas survey at Ungaran geothermal field, central Java, Indonesia

Phuong, N. K., Harijoko, A., Itoi, R. & Unoki, Y., Jun 1 2012, In : Journal of Volcanology and Geothermal Research. 229-230, p. 23-33 11 p.

Research output: Contribution to journalArticle

Geothermal fields
Indonesia
Geochemistry
soil gas
geochemistry
2011
20 Citations (Scopus)

Production capacity estimation by reservoir numerical simulation of northwest (NW) Sabalan geothermal field, Iran

Noorollahi, Y. & Itoi, R., Jan 1 2011, In : Energy. 36, 7, p. 4552-4569 18 p.

Research output: Contribution to journalArticle

Geothermal fields
Computer simulation
Fluids
Numerical models
Prisms
2010
45 Citations (Scopus)

Developing the geothermal resources map of Iran

Yousefi, H., Noorollahi, Y., Ehara, S., Itoi, R., Yousefisahzbi, A., Fujimitsu, Y., Nishijima, J. & Sasaki, K., Jun 1 2010, In : Geothermics. 39, 2, p. 140-151 12 p.

Research output: Contribution to journalArticle

resource
identification method
Decision making
decision making
Uncertainty
1 Citation (Scopus)

Geochemical assessment of vulnerability of groundwater to contaminant at phuoc hiep landfill site, Ho Chi Minh city, Vietnam

Nguyen, K. P., Itoi, R., Komaniwa, Y. & Dinh, P. H., 2010, In : Memoirs of the Faculty of Engineering, Kyushu University. 70, 2, p. 33-48 16 p.

Research output: Contribution to journalArticle

Land fill
leachate
Groundwater
landfill
vulnerability
2009
122 Citations (Scopus)

An improved thermal response test for U-tube ground heat exchanger based on optical fiber thermometers

Fujii, H., Okubo, H., Nishi, K., Itoi, R., Ohyama, K. & Shibata, K., Dec 1 2009, In : Geothermics. 38, 4, p. 399-406 8 p.

Research output: Contribution to journalArticle

Thermometers
Heat exchangers
Optical fibers
Thermal conductivity
Geothermal heat pumps
1 Citation (Scopus)

Magmatic fluid input to the Kuju-Iwoyama hydrothermal system prior to the 1995 eruption of the Kuju volcano (Kyushu, Japan)

Kita, I., Kai, T., Itoi, R., Ishida, M. & Ueda, A., Sep 1 2009, In : Geothermics. 38, 3, p. 294-302 9 p.

Research output: Contribution to journalArticle

Volcanoes
hydrothermal system
volcano
volcanic eruption
thermal water
34 Citations (Scopus)

Source and release mechanism of arsenic in aquifers of the Mekong Delta, Vietnam

Nguyen, K. P. & Itoi, R., Jan 7 2009, In : Journal of Contaminant Hydrology. 103, 1-2, p. 58-69 12 p.

Research output: Contribution to journalArticle

Arsenic
Aquifers
Groundwater
arsenic
aquifer
2008
1 Citation (Scopus)

Evaluation of thermal stimulation method using deep geothermal heat in methane hydrate deposits

Fujii, H., Wasaki, Y. & Itoi, R., Mar 1 2008, In : Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy. 87, 3, p. 199-207 9 p.

Research output: Contribution to journalArticle

Hydrates
Methane
Deposits
Water injection
Gases
57 Citations (Scopus)

GIS integration model for geothermal exploration and well siting

Noorollahi, Y., Itoi, R., Fujii, H. & Tanaka, T., Apr 1 2008, In : Geothermics. 37, 2, p. 107-131 25 p.

Research output: Contribution to journalArticle

Information systems
GIS
Geothermal fields
Data structures
well
2 Citations (Scopus)

Influence of redox potential on arsenic release from soil in the presence of iron oxyhydroxide

Nguyen, K. P., Itoi, R. & Yamashiro, R., Jun 1 2008, In : Memoirs of the Faculty of Engineering, Kyushu University. 68, 2, p. 129-140 12 p.

Research output: Contribution to journalArticle

redox potential
Arsenic
arsenic
Iron
Soils
2007
33 Citations (Scopus)

Development of suitability maps for ground-coupled heat pump systems using groundwater and heat transport models

Fujii, H., Inatomi, T., Itoi, R. & Uchida, Y., Oct 1 2007, In : Geothermics. 36, 5, p. 459-472 14 p.

Research output: Contribution to journalArticle

Heat pump systems
Heat exchangers
Groundwater
groundwater
exchange rate
1 Citation (Scopus)

Geothermal power plant site selection with environmental consideration in Namafjall area, North Iceland

Noorollahi, Y. & Itoi, R., 2007, In : Unknown Journal. 31, p. 193-198 6 p.

Research output: Contribution to journalArticle

Geothermal power plants
site selection
Site selection
geothermal power
Iceland
45 Citations (Scopus)

GIS model for geothermal resource exploration in Akita and Iwate prefectures, northern Japan

Noorollahi, Y., Itoi, R., Fujii, H. & Tanaka, T., Aug 1 2007, In : Computers and Geosciences. 33, 8, p. 1008-1021 14 p.

Research output: Contribution to journalArticle

Geothermal wells
Geographic information systems
well
resource
fumarole
20 Citations (Scopus)

Numerical modeling of the Momotombo geothermal system, Nicaragua

Porras, E. A., Tanaka, T., Fujii, H. & Itoi, R., Aug 1 2007, In : Geothermics. 36, 4, p. 304-329 26 p.

Research output: Contribution to journalArticle

geothermal system
Geothermal fields
well
drawdown
enthalpy

Reinjection scheme in Momotombo, Nicaragua, on the basis of reservoir pressure monitoring, tracer test analysis and numerical modeling study

Porras, E. A. & Itoi, R., 2007, In : Unknown Journal. 31, p. 561-565 5 p.

Research output: Contribution to journalArticle

Nicaragua
tracers
tracer
well
brine
2005
2 Citations (Scopus)

Analysis of Tracer Test Performed in the Kakkonda Geothermal Field with Multi-flowpath Model

Tanaka, T., Koshi, S., Molina, P., Itoi, R. & Kajiwara, T., Jan 1 2005, In : Journal of the Geothermal Research Society of Japan. 27, 4, p. 293-305 13 p.

Research output: Contribution to journalArticle

tracers
tracer
well
arrival time
arrivals
64 Citations (Scopus)

Optimizing the design of large-scale ground-coupled heat pump systems using groundwater and heat transport modeling

Fujii, H., Itoi, R., Fujii, J. & Uchida, Y., Jun 1 2005, In : Geothermics. 34, 3, p. 347-364 18 p.

Research output: Contribution to journalArticle

Heat pump systems
Groundwater
Groundwater flow
groundwater
modeling
2004

A numerical study on the effects of initial water saturation of a geothermal reservoir on well characteristics

Khasani, Itoi, R., Tanaka, T. & Fukuda, M., Mar 1 2004, In : Memoirs of the Faculty of Engineering, Kyushu University. 64, 1, p. 1-15 15 p.

Research output: Contribution to journalArticle

saturation
Wellheads
Water
wellhead
Flow rate
10 Citations (Scopus)

Characterization of geothermal fluid flows at Sumikawa geothermal area, Japan, using two types of tracers and an improved multi-path model

Kumagai, N., Tanaka, T. & Kitao, K., Jun 1 2004, In : Geothermics. 33, 3, p. 257-275 19 p.

Research output: Contribution to journalArticle

fluid flow
Flow of fluids
tracer
well
Iodine

Reservoir Monitoring of the Onuma Geothermal Field Using Fluid Flow Tomography

Mizunaga, H., Tanaka, T., Ushijima, K., Aono, T. & Sasaki, J., 2004, In : Journal of the Geothermal Research Society of Japan. 26, 3, p. 251-271 21 p.

Research output: Contribution to journalArticle

fluid flow
tomography
electrical resistivity
monitoring
streaming potential
2003
1 Citation (Scopus)

Chemical characteristics of rainwater at Motooka, Fukuoka

Unoki, R. & Itoi, R., Sep 1 2003, In : Memoirs of the Faculty of Engineering, Kyushu University. 63, 3, p. 151-160 10 p.

Research output: Contribution to journalArticle

rainwater
Salts
Ions
Sampling
Monitoring
2000

Changes with Time in HO Gas Discharge Rate from the Fumarolic Area at Kuju Volcano

Itoi, R., Kai, T., Tanaka, T. & Fukuda, M., Jan 1 2000, In : Journal of the Geothermal Research Society of Japan. 22, 3, p. 159-169 11 p.

Research output: Contribution to journalArticle

gas discharges
volcanoes
volcano
gas
rainwater

Evaluation of reservoir characteristics using well data of sibayak geothermal field, North Sumatra, Indonesia

Atmojo, J. P., Itoi, R., Fukuda, M. & Sudarman, S., Dec 1 2000, In : Memoirs of the Graduate School of Engineering, Kyushu University. 60, 3, 1 p.

Research output: Contribution to journalArticle

Geothermal fields
well
Temperature
temperature
Well logging
1999
29 Citations (Scopus)

Reservoir monitoring by a 4-D electrical technique

Ushijima, K., Mizunaga, H. & Tanaka, T., Dec 1 1999, In : The Leading Edge. 18, 12, p. 1422-1424 3 p.

Research output: Contribution to journalArticle

fluid flow
monitoring
oil recovery
self potential
enhanced oil recovery