Kyushu University Academic Staff Educational and Research Activities Database
List of Reports
Yoshinori Hamamoto Last modified date:2022.11.02

Associate Professor / Thermal Engineering / Department of Mechanical Engineering / Faculty of Engineering

1. Bidyut Baran Saha, Yoshinori Hamamoto, Guest Editorial: Special issue on the 5th International Conference on Polygeneration 2019, Applied Thermal Engineering, vol.190 (2021) 116853, 10.1016/j.applthermaleng.2021.116853, 2021.03.
2. 濱本 芳徳, 高田 保之, Selected Papers from the International Symposium on Innovative Materials for Processes in Energy Systems 2013 (IMPRES2013): Part II, Heat Transfer Engineering, vol.37, Issue 7-8, pp.684-685, 2016.05.
3. Heating Piping & Air Conditioning Vol.53 No.11, pp.2-6, 2015.09.
4. Heating Piping & Air Conditioning Vol.49 No.12, pp.63-66, 2011.10.
5. Y.Hamamoto, The present state of humidity control, Enviroment and Building Service No.125, pp.49-51 (June, 2009)..
6. Yoshinori HAMAMOTO, Overall Heat and Mass Transfer Coefficient of Water Vapor Adsorption -2nd Report: Transfer Coefficient for Adsorbent Rotor Blocks-, Refrigeration, Vol.83, No968, pp. 410-411 (June, 2008)..
7. Hamamoto, Y, Temperature and Humidity Independent Control Technology, and Building Energy Saving Management Technology, Seminar text of JSRAE West Japan, JSRAE, pp.1-11, 2007..
8. MORI, H., HAMAMOTO,Y., OHISHI, K., ETOH, A. and OHNO, M., The Outline of the Thermal Energy Conversion Laboratory and a Study of the Energy Conservation Technologies, Proc. of Kyushu University-KAIST Joint Seminar 2006, pp.49-52, 2006., 2006.09.
9. Hamamoto, Y. and Mori, H., The Application of Water Vapor Adsorption Phenomena to the Independent Control of Latent and Sensible Heat, J. Heat Transfer Society of Japan, Vol.45, No.190, pp.33-38, 2006..
10. Hamamoto, Y., Dehumidifying and humidifying technology applied the absorption and adsorption phenomena, Refrigeration, Vol.80, No.929, pp.197-202, 2005.
Summary: Demand of the humidity control has increased rapidly to have a comfortable space and a safety for a food processing plant. The paper presents a brief review of the systems for dehumidifying and humidifying, and the significance to control humidity and temperature independently for energy saving. It is suitable to apply the absorption and adsorption process to the humidity control. Moisture transportation mechanism in the sorption process was explained. Some studies of the desiccant elements and hybrid systems those are composed of adsorption chiller and desiccant dehumidifier are introduced. The hybrid system can be driven by the thermal energy at temperature of 55 deg.C and the energy efficiency improved 30% compared with the cooling dehumidifier system..
11. Kashiwagi, T., Akisawa, A. and Hamamoto, Y., Research and Development of the Triple Effect Absorption Chiller-Heater Technology in Japan, Society of Air-conditioning and Refrigeration Korea, pp.43-49, 2004.03.
12. Hamamoto, Y., Dynamic simulation of the desiccant air conditioning cycle, Refrigeration, Vol.78, No.909, pp.586-591, 2003.
Summary: Precise information such as local temperature, humidity and amount of adsorbed water in a desiccant rotor is significant to improve the rotor and system performance. The paper presents a theoretical dynamic analysis model of heat and mass transfer in a rotor to clarify the design aspects and performance of high efficient systems. The influences of rotor speed, adsorption/desorption time ratio, airflow path patterns and air conditions on rotor performance are discussed. There is an optimum angle of each process zone and an optimum desorption side air flow rate becoming a maximum amount of adsorption. Hybrid system composed of a vapor compression cooling system and desiccant dehumidifier has the potential to improve COP value up to 24% compared with non-hybrid system..