| 1. |
何清怡，住吉大輔, Investigating the Relationship between Environmental Awareness and Energysaving Behavior in Office Buildings Using the Theory of Planned Behavior, J. of Architecture and Urban Design, Kyushu University, https://doi.org/10.15017/6796116, 2023.07. |
| 2. |
Hyemi Kim, Daisuke Sumiyoshi, Youngjin Choi, Development of flow rate and equipment simulation model for commercial building HVAC&R system by data-driven method, Journal of Building Engineering，vol.44，https://doi.org/10.1016/j.jobe.2021.103303, 2021.12. |
| 3. |
Jewon Oh, Daisuke Sumiyoshi, Masatoshi Nishioka and Hyunbae Kim, Examination of Efficient Operation Method of ATES System by Comparison Operation with WTES System of Existent Heat Storage System, applied sciences，vol.11，No.21，https://doi.org/10.3390/app11211032120, 2021.11. |
| 4. |
Oh, J., Sumiyoshi, D., Nishioka, M. & Kim, H., Efficient operation method of aquifer thermal energy storage system using demand response, Energies, 2021.06. |
| 5. |
Lee, J., Akashi, Y., Takaguchi, H., Sumiyoshi, D., Lim, J., Ueno, T., Maruyama, K. & Baba, Y., Forecasting model of activities of the city-level for management of CO2 emissions applicable to various cities, Journal of Environmental Management, 2021.05. |
| 6. |
Takahiro Ueno, Choi Youngjin, Kentaro Takahashi, Daisuke Sumiyoshi, A Simulation Approach For The Optimization Of Urban Energy Supply Systems, International Conference of Asia Institute of Urban Environment, 177-182, 2019.11. |
| 7. |
Takahiro Ueno, Kentaro Takahashi, Daisuke Sumiyoshi, A Simulation Approach For The Optimization Of Distributed Energy Supply Systems Based On Energy Demands In Business Area, Building Simulation 2019 Rome, ID:210603, 2019.09. |
| 8. |
Takahiro Ueno, Kentaro Takahashi, Daisuke Sumiyoshi, Estimation for energy demand fluctuation in commercial and business area by Monte Carlo simulation, Journal of Environmental Engineering (Japan), 10.3130/aije.84.291, 84, 757, 291-301, 2019.03, This paper describes development of the energy demand estimation method for non-residential buildings and the demand analysis in Japanese business area by using this method. We developed a method and a program to estimate demand of electricity and heat (heating, cooling and hot water) of non-residential buildings for one year. This program makes fluctuation in demand by 5-minutes intervals to reproduce the actual fluctuation depending on the type of buildings, total floor area, outdoor air temperature and so on. We can consider ideal based on the demand data.. |
| 9. |
Takahiro Ueno, Kentaro Takahashi, Daisuke Sumiyoshi, A Making Method of Time-Series Energy Demand Data of Non-Residential Buildings for Urban Energy Analysis, Asim (IBPSA Asia Conference Hong Kong) 2018, ID433, 2018.12. |
| 10. |
Keishi Asahi, Daisuke Sumiyoshi, Takahiro Yamamoto, Study on Energy Saving Effect of Solid Oxide Fuel Cell - Energy Saving Effect According to Various Energy Demands, Asim (IBPSA Asia Conference Hong Kong) 2018, ID466, 2018.12. |
| 11. |
Tatsuhito Itou, Daisuke Sumiyoshi, Mikiko Nakamura, Hiroaki Okamoto, Masato Miyata, Yasuo Kuwasawa, Study on Improvement of Energy Performance Evaluation Method about Cogeneration Systems for Buildings, Asim (IBPSA Asia Conference Hong Kong) 2018, ID403, 2018.12. |
| 12. |
Noriyuki Ueno, Daisuke Sumiyoshi, Sumio Shiochi, Toshihiro Suzuki, Koji Nagasawa, Study on Functional Performance Test Method of Modular Chillers, Asim (IBPSA Asia Conference Hong Kong) 2018, ID533, 2018.12. |
| 13. |
Jieun Lee, Yasunori Akashi, Hiroto Takaguchi, Daisuke Sumiyoshi, Jongyeon Lim, Impact of Environmental Subsidy on Urban CO2 Emission: Long-Term Prediction Using System Dynamics, Asim (IBPSA Asia Conference Hong Kong) 2018, ID424, 2018.12. |
| 14. |
Toshiki Doyama, Michihiro Kondo, Hiroshi Imaoka, Daisuke Sumiyoshi, Hiroki Kitayama, Jongyeon Lim, Yasunori Akashi, Conduit Pressure Analysis and Renewal Effect of a District Heating and Cooling Plant, Asim (IBPSA Asia Conference Hong Kong) 2018, ID358, 2018.12. |
| 15. |
Azizuddin Abd Aziz, Daisuke Sumiyoshi, Yasunori Akashi, Design procedure for dual air handling unit of air-conditioning system, 2018 UTP-UMP-VIT Symposium on Energy Systems, SES 2018
MATEC Web of Conferences, 10.1051/matecconf/201822504016, 225, 2018.11, The use of conventional air-conditioning system in tropical climate is ineffective to reduce the humidity. In a typical application, the indoor temperature has to be overcooled to decrease the humidity which has an inherent effect of high energy consumption. The introduction of dual air handling unit (AHU) is the answer to high humidity environment. Each AHU is tasked to control the parameter of temperature and humidity respectively according to the desired value. In this paper, the objective is to design the procedure of sizing the dual AHU so that the control system could run efficiently. Basically, eight (8) steps are necessary to size the dual AHU system and the procedure requires sequential manner. Namely, the design process are indoor design condition, fresh air flow, outdoor design condition, room cooling load, capacity of both AHUs, supply air temperature of second AHU, supply air temperature of first AHU and the enthalpy of both AHUs. The design procedure also requires a psychrometric chart to indicate the air thermal condition throughout the cycle of the air-conditioning system. In conclusion, the proposed design procedure is simple yet effective for the application of dual AHU system to handle the excessive latent heat environment.. |
| 16. |
Takahiro Yamamoto, Daisuke Sumiyoshi, Analysis of fuel cell performance on detached house with hems measurement data in a smart town, AIJ Journal of Technology and Design, 10.3130/aijt.24.727, 24, 57, 727-732, 2018.06, There are few reports about PEFC?s(Polymer Electrolyte Fuel Cell) energy saving performance in the actual house by measured data. In this paper, performance of 18 household?s PEFCs are clarified by using the HEMSs of Teriha smart town in Fukuoka Island City.. |
| 17. |
Toshiyuki Watanabe, Daisuke Sumiyoshi, China
Houses for ethnic minorities in Yunnan Province, Sustainable Houses and Living in the Hot-Humid Climates of Asia, 10.1007/978-981-10-8465-2_7, 67-76, 2018.06, From the summer of 1990 to the winter of 1992, as the Japan Private University Promotion Foundation special research "Architectural Planning Study on Traditional Chinese Houses," at that time, the Japan-China Joint Study Group, represented by Professor Yoshimi Urano at Kyushu Sangyo University, conducted residential investigation of ethnic minorities in Yunnan Province. The study team was divided into two teams. First, the planning team gathered local hearings and housing drawings, and based on the results, the environmental group selected target residences and measured the indoor environment centered on the thermal environment.. |
| 18. |
Takahiro Yamamoto, Koshiro Amatatsu, Daisuke Sumiyoshi, Estimation energy saving effects of sharing fuel cell with two households by simulation program
Study on effective usage of the home fuel cell in the apartment housing, Journal of Environmental Engineering (Japan), 10.3130/aije.83.365, 83, 746, 365-374, 2018.04, The purpose of this study is to propose an introduction method of fuel cells to households of apartments. This paper examined, with simulation, the effects of sharing fuel cell with multiple households. Introduction methods of normal types of fuel cells would tend to have less of an energy-saving effect on households with fewer members (households consisting of one person or households consisting of one couple), because the load of electric power or water heating system tends to be small. Therefore, this study examined effects of energy saving in sharing one fuel cell between two households. It was verified that, when diversified combinations of load patterns were simulated for two households sharing system, this method could have sufficient effects.. |
| 19. |
Azizuddin Abd Aziz, Daisuke Sumiyoshi, Yasunori Akashi, Low cost humidity controlled air-conditioning system for building energy savings in tropical climate, Journal of Building Engineering, 10.1016/j.jobe.2017.03.005, 11, 9-16, 2017.05, The viable solution to the high latent load that naturally occurs in tropical regions requires an alternative system that runs at relatively low energy consumption yet be able to provide indoor thermal comfort by effective handling of the excessive humidity. Although the existing outdoor air treatment system is a proven approach, it is unpopular in developing countries due to its high initial cost. In this paper, a new system termed Dual Air Handling Unit system is proposed to be the answer. The function of Humidity-control Air Handling Unit is to remove the moisture from the conditioned room up to the desired humidity level and in the process the room temperature is also fractionally reduced. The Temperature-control Air Handling Unit completes the task by removing the remaining sensible heat so that the room temperature is maintained at the required set-point. By reducing the relative humidity to 50%, a much lower value than that of the normal air-conditioning could offer, room temperature of the new system is shifted higher to 26 °C in order to reduce the energy consumption. The simulation result shows that the proposed system offers energy savings up to 13.2% compared to the conventional air-conditioning system, without compromising the thermal comfort of the occupants.. |
| 20. |
Xiangxiang Gao, Jiaping Liu, Rongrong Hu, Yasunori Akashi, Daisuke Sumiyoshi, A simplified model for dynamic analysis of the indoor thermal environment of rooms with a Chinese kang, Building and Environment, 10.1016/j.buildenv.2016.10.012, 111, 265-278, 2017.01, This paper uses thermodynamics equilibrium theory to develop a mathematical model for dynamic thermal processes pertaining to rooms with a Chinese kang (a heatable brick bed). The model is developed through analysis of the dynamic thermal equilibrium of indoor air temperature and the temperature of interior and exterior surfaces of the building envelopes of rooms with a kang. It is developed and solved using a thermal reaction coefficient. Based on data from a field test, a simplified mathematical model of thermal processes in such a room is presented. The model only takes into account the radiation heat transfer between the exterior surface of the kang's faceplate and the other interior surfaces of the building envelope, while ignoring the reciprocal radiation heat transfer between all other interior surfaces. A simplified mathematical model pertaining to the Chinese kang is also put forward. This model does not take into account the reciprocal radiation heat transfer between the interior surfaces of the Chinese kang. By combining these two models, the hourly values pertaining to indoor air temperature and exterior temperature of the kang's faceplate can be predicted for different burning modes of the Chinese kang. MATLAB was used for calculating the target temperatures and solving the thermal reaction coefficient. The model was validated by error analysis and correlation analysis, the result of which shows that this mathematical model can accurately predict various characteristics concerning the temperatures in a room with a Chinese kang.. |
| 21. |
Heba Hassan, Daisuke Sumiyoshi, Ahmed El-Kotory, Takafumi Arima, Aly Ahmed, Measuring people's perception towards Earth-sheltered buildings using photo-questionnaire survey, Sustainable Cities and Society, 10.1016/j.scs.2016.05.005, 26, 76-90, 2016.10, The earth-sheltered buildings started to be known as an alternative passive energy design technique. This research is trying to measure people's acceptance, to live in or deal with these buildings, whom had no previous experience, using the photo-questionnaire survey and interviews with a purposive expert sample (n = 164) at Egypt and Japan. Using the chi-square test, to generalize the results, the inferential statistics showed that 48.8% from the whole sample had a little knowledge, which means that it started to be recognizable among experts. In addition, 55.5% from the sample chose the application at a touristic city with mild climate. Moreover, 43.3% chose the residential usage, and 40.0% chose the touristic one. Which infers that the only bias of applying those buildings was psychological, according to its name related with "Earth". However, when people had experienced the questionnaire through videos and pictures, they showed good reaction about those buildings. The significant results recommended for architects and urban planners to use this kind of buildings first at a touristic city with mild climate as a beginning, to give the public a chance to try it for short time as a resort or hotel. Afterwards, they can apply it at the residential sector.. |
| 22. |
Takahiro Ueno, Daisuke Sumiyoshi, et. al., Development of Performance Evaluation Method for Cogeneration Systems
-Measurement Data Analysis and Development of Simulation Program -
, 9th International Conference Improving Energy Efficiency in Commercial Buildings and Smart Communities (IEECB&SC’16), Session 9.b Polygeneration, 2016.03. |
| 23. |
Energy Saving Effect of Integrated Piping in Building HVAC System. |
| 24. |
Daisuke Sumiyoshi, Takahiro Yamamoto, Tomoko Hirata, Yusuke Shigematsu, Installation Effect Estimation of Fuel Cells in an Apartment by Simulation Analysis, Microgen4, 12-19, 2015.10, Installation Effect Estimation of Fuel Cells in an Apartment by Simulation Analysis. |
| 25. |
The Examination for Suitable spec of Solid Oxide Fuel Co-Generation System and the Proposal of Tank Minimization by Using Bas-tab in Collective housing. |
| 26. |
Xinzhi Gong, Daisuke Sumiyoshi, et al, Energy performance of Sofc con generation system for residential buildings in Chinese cold areas. Green Technologies and Sustainable Development in Construction, Advanced Materials Research, 935, 48-51, 2014.05. |
| 27. |
Xiangxiang Gao, Yasunori Akashi, Daisuke Sumiyoshi, Installed capacity optimization of distributed energy resource systems for residential buildings, Energy and Buildings, 10.1016/j.enbuild.2013.11.026, 69, 307-317, 2014.02, Our work aims to reduce residential energy consumption and expense by presenting a methodology for integrating electricity and hot water supply, and determining the optimum installed capacities of the selected distributed energy resource systems, which consist of a photovoltaic system, a solar water heating system and a fuel cell system. Initially, we build the dynamic model respectively for every individual system on the basis of their respective working principles. Then we propose operation strategies of electric power and hot water separately for the integration of the models. Followed, we apply a genetic algorithm to optimize the installed capacities of the systems, aiming at reducing the conventional energy consumption and the life cycle costs. With a complete database, the integration and optimization methodology are finally applied to a typical building located in Fukuoka City in Japan. It is shown by the computer simulation that the methodology which we propose can help to reduce considerable quantity of residential energy consumption and expense.. |
| 28. |
Azizuddin AZIZ, Daisuke Sumiyoshi, Yasunori Akashi, Investigation of Current Situation of Building Energy Conservation in Malaysia for Optimal Air-conditioning design, 都市建築学研究 九州大学大学院人間環境学研究院紀要, 24, 79-88, 2013.07. |
| 29. |
En Li, Yasunori Akashi, Daisuke Sumiyoshi, Passive design strategy on residential buildings for sustainable development of Lhasa, Journal of Environmental Engineering (Japan), 10.3130/aije.78.471, 78, 688, 471-480, 2013.06, As a new heating area, the heating energy consumption in Lhasa faces large-scale expansion. The field surveys show that the existing residential buildings use some elements of passive designs. However, the current condition does not satisfy the local people, it still needs improving. Residential building passive design strategy is one of the important steps for urban scale heating energy saving. The simulation models were established for in-depth understanding the relationship between building design factors and heating energy consumption. Three common unit layouts and the envelope thermal designs as windows type, window-wall ratio and external wall thermal resistance were studied. The combination and interaction of the design factors were analyzed. The result shows with proper design factors' combination, the heating energy consumption of apartment in Lhasa can be considerably reduced. The scenario of urban scale residential building of future Lhasa is described by forecasting the urban composing factors like population, household number, disposable income, living area and so on. With the scenario analysis, the passive design strategies were generated based on the results of passive design study. The effectiveness validation of the strategy shows that a deceleration of urban heating energy consumption growth with city developing can be achieved.. |
| 30. |
JeHyeon LEE, Yasunori AKASHI, Daisuke SUMIYOSHI, The Optimal Planning Method of Maintenance Schedule for Deterioration Recovery in Air-Conditioning System : Presumption of the Deterioration Progression Speed and Examination of the Effect on the Optimal Planning Method for Gas Absorption water Chiller Boiler and Cooling Tower, 空気調和・衛生工学会論文集, 192, 15-26, 2013.03. |
| 31. |
Daisuke SUMIYOSHI, Yasunori AKASHI, Harunori YOSHIDA, Takao KATSURA, Yuichiro AMANO, Mitsuhiro ONOSAKA, Yoshiyuki NAGURA, Effect of Saving and Peak Power Reduction by Combination of Several Thermal Storage Methods -Analysis of Measurement Data-, The 8th Yellow Sea Rim International Exchange Meeting on Building Environment and Energy, 124-131, 2013.01. |
| 32. |
Naoki Okamoto, Yasunori AKASHI, Daisuke SUMIYOSHI, Study on improvement of thermal environment in temporary housing, The 8th Yellow Sea Rim International Exchange Meeting on Building Environment and Energy, 149-153, 2013.01. |
| 33. |
Satoshi Ueda, Yasunori AKASHI, Daisuke SUMIYOSHI, Study on Passive Design of Collective Housing in the Developing Cairo City, The 8th Yellow Sea Rim International Exchange Meeting on Building Environment and Energy, 154-160, 2013.01. |
| 34. |
Tomoyo KUROKI, Yasunori AKASHI, Daisuke SUMIYOSHI, Sun PENG, Hirotoshi YODA, Weijun GAO, Takao KATSURA, Shoichiro MAEDA, Result of Survey on the Saving Electricity in Kyushu in 2011 and 2012 summer, The 8th Yellow Sea Rim International Exchange Meeting on Building Environment and Energy, 161-168, 2013.01. |
| 35. |
Xinzhi Gong, Yasunori Akashi, Daisuke Sumiyoshi, Optimization of passive design measures for residential buildings in different Chinese areas, Building and Environment, 10.1016/j.buildenv.2012.06.014, 58, 46-57, 2012.12, Passive design, which has strong dependency of climate and areas, is the most economical effective strategy for reducing energy consumption inside residential buildings. A total of 25 representative cities of China were selected for optimum analysis. This paper presents an approach in which the orthogonal method and the listing method are integrated to explore how energy consumption is minimized in residential buildings by optimizing 7 passive design measures for each city: wall thickness (WT), roof insulation thickness (RIT), external wall insulation thickness (EWIT), window orientation (WO), window-wall ratio (WWR), glazing type (GT), and sunroom depth/overhang depth (SD/OD). With the optimization, the passive design could reduce annual thermal load of building considerably, even could replace air-condition systems in winter for the areas with high solar radiation such as Lhasa. The results reveal that neighbor cities have the same optimal combinations and the similar effects of energy-saving measures. A total of 7 passive design zones were summarized in a map. The architect could be guided in his choice of appropriate passive measures directly from the map or handling of exact passive design by the optimal approach proposed in this paper for different areas in China.. |
| 36. |
Akinori Hosoi, Hisashi Miura, Takao Sawachi, Daisuke Sumiyoshi, Evaluation of cop of residential air conditioner in practical condition
Heating / cooling COP and energy consumption of residential air conditioner Part 3, Journal of Environmental Engineering (Japan), 10.3130/aije.77.881, 77, 681, 881-888, 2012.11, The conditions that the air-conditioner changes the operation mode into the defrost cycle were clarified. 2.Based on the typical change of COP in a defrost mode, the method to estimate the energy consumption including defrost cycles was shown. 3.It was clarified the theoretical definition of the coefficients which correct the theoretical heat extraction based on the refrigerating cycle to the practical condition. The method to calculate the coefficients were also shown. 4.The distribution factors of COP in practical condition were analyzed, and the accuracy of the estimating method of COP proposed in our study was verified.. |
| 37. |
Eriko Tamura, Yasunori Akashi, Jia-ping Liu, Yan-feng Liu, Baimu Suolang, Daisuke Sumiyoshi, Fundamental Study of Housing and Lifestyle in Lhasa City for Low-Environmental Load Housing Design, Journal of Habitat Engineering and Design, 33-42, 2012.03. |
| 38. |
Eriko Tamura, Yasunori Akashi, Daisuke Sumiyoshi, En Li, Jia-ping Liu, Yan-feng Liu, Akihito Ozaki, Prediction Study of Energy Consumption in Household and Energy Saving Method in Lhasa city based on On-site Survey, The 7th Yellow Sea Rim International Exchange Meeting on Building Environment and Energy, 83-90, 2012.02. |
| 39. |
Shinya Imai, Yasunori Akashi, Daisuke Sumiyoshi, Measurement Survey of the Internal Heat Generation in Commercial Buildings, The 7th Yellow Sea Rim International Exchange Meeting on Building Environment and Energy, 219-230, 2012.02. |
| 40. |
Yuki Okuda, Yasunori Akashi, Daisuke Sumiyoshi, Akihito Ozaki, Rei Kumanomidou, Energy Saving Effects of Solid Oxide Fuel Cell Co-Generation Systems for Residential Housing, The 7th Yellow Sea Rim International Exchange Meeting on Building Environment and Energy, 231-242, 2012.02. |
| 41. |
Daisuke Sumiyoshi, Naomiki Matsushita, Je-Hyeon Lee, and Yasunori Akashi, DEVELOPMENT OF THE AUTOMATIC OPTIMIZATION AND DEGRADATION DETECTION TOOL FOR HVAC PRIMARY SYSTEM, Building Simulation 2011, pp.1792-1799, 2011.11, In many building air-conditioning systems, the fixed set values are generally used throughout the year, concerning each set value of supply air temperature, outlet temperature, pressure, etc. However, it is possible to achieve energy-saving by the optimization of the air-conditioning system operation, which involves selecting the best set value according to the ever-changing outside environment and the thermal load of the building. In addition, equipment containing an air-conditioning system gradually degrade through everyday use. This is the reason they fail to fully demonstrate the level of performance, which was estimated when they were designed. For this reason, if we understand such a degradation condition, we could determine the appropriate timing to repair, exchange and overhaul the equipment. Moreover, we could possibly prevent complaints caused by their incapability and energy waste throughout the year.
Therefore, in this study, we developed an automatic optimization and degradation detection tool.. |
| 42. |
En LI, Yasunori AKASHI, Daisuke SUMIYOSHI, Jiaping LIU and Yanfeng LIU, Energy Consumption Analysis of House in Lhasa Based on Survey and Simulation, Building Simulation, 1535-1542, 2011.11. |
| 43. |
Xinzhi GONG, Yasunori AKASHI, Daisuke SUMIYOSHI and Akihito OZAKI, The Energy-saving Effects of Residential PEFC Cogeneration Systems Using a Hydronic Radiant Floor Heating System Based on Simulation, Sustainable Building 2011, 1431-1438, 2011.10. |
| 44. |
Jehyeon LEE, Yasunori AKASHI and Daisuke SUMIYOSHI, Implementation of the Commissioning Process for Air-Conditioning Systems in Subtropical Regions, Journal of Habitat Engineering, 3, 1, 57-66, 2011.03. |
| 45. |
Shinpei KAWANO, Yasunori AKASHI, Daisuke SUMIYOSHI, Toshiyuki WATANABE, Hirotoshi YODA, Weijun GAO, Takao KATSURA and Shoichiro MAEDA, Analysis of Characteristics of the Commercial Buildings in the Kyushu District, The 6th Yellow Sea Rim International Exchange Meeting on Building Environment and Energy, 179-190, 2011.01. |
| 46. |
Je Hyeon LEE, Yasunori AKASHI and Daisuke SUMIYOSHI, Implementation of Commissioning for Air-conditioning Systems in a Subtropical, The 6th Yellow Sea Rim International Exchange Meeting on Building Environment and Energy, 197-208, 2011.01. |
| 47. |
Takahiro YAMAMOTO, Ayu TERACHI, Yusuke HARA, Yasunori AKASHI, Daisuke SUMIYOSHI, Takafumi ARIMA, Tsutomu SHIGA, Shichen ZHAO, Naoki TSURUSAKI and Kentaro YAMAGUCHI, Development of a Simulator for Long-term Prediction of Urban Environmental Load and Prediction and CO2 Emission Prediction in Civilian and Industrial Sectors, The 6th Yellow Sea Rim International Exchange Meeting on Building Environment and Energy, 209-218, 2011.01. |
