Built Environment Engineering Laboratory

S. Iwamoto

Shizuo Iwamoto

Office: 12-34 Ext.: 3481


03/1989, D.Eng., Meiji University

A. Dempoya

Ayano Dempoya
(Assistant Professor)

Laboratory: 12-23 Ext.: 3477


03/2016, D.Clothing Environment, Bunka Gakuen University

Research Field

Built Environment Engineering, Indoor Thermal Comfort, Thermal Analysis, Building Services.

Research Overview

Analysis of indoor and outdoor air distribution. Computational fluid dynamics (CFD) and energy simulations.

Research Subjects

  • 1. Indoor thermal comfort with floor panel heating.
  • 2. CFD simulations of cross ventilation.
  • 3. Energy simulations of offices and residential buildings
  • 4. Energy conservation performance for building services.


1. Indoor and outdoor thermal and air environment

We are researching ways of achieving thermally comfortable environments with clean air. We are using three main methods: numerical calculations, field experiments, and human subject experiments. The experiments in our climate chamber and with thermal manikins or subjects can be conducted with a wide variety of air conditioning and heating systems. The air distribution in the climate chamber is measured with a number of sensors, such as thermocouples and ultrasonic anemometers, to understand the differences in air conditioning and heating systems and evaluate thermal comfort. We can also perform CFD simulations (STREAM or SCRYU/Tetra software) with human thermal models to obtain air distribution, thermal comfort indices, such as predicted mean vote and SET*, human skin temperature, and thermal sensation from the human thermal model to estimate the thermal environment.

2. Energy conservation and environmental impact reduction in building services

Commercial buildings, such as offices and hotels, consume a large amount of energy for air conditioning, lighting, and hot water supply. To reduce the environmental impact, we conduct various energy simulations by TRNSYS, BEST, or HASP software, and daylight simulations by Radiance software for light shelves, light ducts, natural ventilation, geothermal technology, photovoltaics, solar energy, green roofs and walls, and double roofs. We evaluate the effects of these methods, seasonal schedules, and working style on energy conservation and environmental impact reduction.

  • 1)Y. Misawa, S. Hikone, M. Nakamura, S. Iwamoto, and M. Iwata, “Diagonally arranged louvers in integrated facade systems - effects on the interior lighting environment,” Journal of Facade Design and Engineering, vol. 2(3–4), pp. 163–182 (2015).
  • 2)T. Kawaguchi, M. Otsuka, T. Inoue, S. Iwamoto, T. Kurabuchi, M. Mae, Y. Kuwasawa, and S. Yabe, “A study on hot water-saving effects of hot/cold water-saving kitchen faucets having various types of spout designs and water-ejection modes,” Proceedings of CIB-W062 Symposium, 2015.
  • 3)T. Sato, K. Kubo, S. Hikone, Y. Misawa, W. Cho, S. Iwamoto, and M. Iwata, “Study on indoor thermal environment in integrated facade system,” Journal of Environmental Engineering (Transaction of AIJ), vol. 676, pp. 467–474 (2012).
  • 4)S. Hikone, Y. Misawa, M. Nakamura, S. Iwamoto, and M. Iwata, “Lighting environment of diagonally arranged louver on integrated facade system,” Journal of Environmental Engineering (Transaction of AIJ), vol. 644, pp.1187–1193 (2009).
  • 5)T. Kondo, S. Iwamoto, N. Ichikawa, and M. Kamata, “Effect of thermostatic mixing faucet and shower head with stop valve, Study on performance test of water saving fixture,” Journal of Environmental Engineering (Transaction of AIJ), vol. 607, pp. 87–92 (2006).
Affiliated Academic Organizations

Architectural Institute of Japan, the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan. Japanese Society of Human Environment System, Japan Society of Physiological Anthropology.

Current members
◯ Professors: 1 ◯ Assistant Professors: 1
◯ Undergraduates: 17

Facilities: Thermal manikin, climate chamber, examination room for domestic hot water systems.