Researchers

Toshiyuki Miyanaga

Toshiyuki Miyanaga

Customer Service Unit Leader, Deputy Associate Vice President, Ph.D. (Engineering)

Born in Fukuoka
Graduate School and Faculty of Information Science and Electrical Engineering, Kyushu University
[Field of reseach] Housing Environment, Comfort, CADIEE

Project

Residential indoor thermal environment design tool "CAIDEE" He is the group leader of the "Customer Service Unit", a business and living environments group that develops and evaluates electricity utilization technologies. With changing times and the prevalence of issues such as energy conservation, concern for the global environment, and energy liberalization, research that balances comfort with efficient energy use is attracting increasing attention. He is developing CADIEE, a residential indoor thermal environment design tool. Housing manufacturers and household appliance manufacturers have developed similar tools, and ideally, these will improve through competition, which will enhance their value.
"Introduction of Related Projects"
"Air-conditioner Selection Support Tool (ASST)" Using the Air-conditioner Selection Tool "ASST", which is suitable for the current residential environment, the energy-saving and environmentally-friendly air conditioner selection tool "ASST" selects an air-conditioner with the best specs by entering the location and thermal insulation performance of the residence, the age of the building, the location and direction of rooms, size, etc. Adding the time of use and preference during use will further conserve energy and enable the selection of a more suitable air-conditioner. “History of ASST Development” Selecting an air-conditioner based on the number of tatami mats will lead to an increase in power consumption as the equipment that will be selected will have cooling and heating capacity exceeding the air-conditioner required for the thermal load of the current residence. In this regard, we conducted a survey of standards, which are the basis for determining air-conditioner selection, interviews with manufacturers, and an online survey (with approximately 3,000 people), and examined a new air-conditioner selection method based on the extracted themes. Based on results, we constructed an original simulation database, and developed the Air-conditioner Selection Support Tool (ASST) that can automatically select an energy-efficient and appropriate air-conditioner taking into account residence specifications, lifestyle, and the importance of consumer preference.

Research
Reports

  • Development of Heat Source Characteristics Model of Electric Heat-Pump Type Multiple-Air Conditioner for Building – (Part 2) Characteristics Model during Steady Heating Period –
    Research Report : C18004
  • Development of Heat Source Characteristics Model of Electric Heat-Pump Type Multiple-Air Conditioner for Building (Part 1) Characteristics Model during Cooling Period
    Research Report : C17006
  • Simulation Method of Airflow Environment and Power Consumption at the Time of Room Air Conditioning Use – Accuracy Verification of CADIEE-Airflow incorporating Heat Source Characteristics Model –
    Research Report : R14005
  • Practical design tool for thermal environment in a commercial electric kitchen -Validation of calculation accuracy of CADIEE by comparison with measured values-
    Research Report : R10036
  • Practical design tool for thermal environment in a commercial electric kitchen -Adding function for calculating the annual air-conditioning load considering inter-room air exchange to CADIEE –
    Research Report : R09008
  • Development of a practical design tool for indoor thermal environments Part 2 : Performance evaluation method of heating equipment considering its operation characteristics
    Research Report : R07034
  • Development of a practical design tool for indoor thermal environments Part 1: Method for calculating the heat load and thermal comfort index of multiple rooms considering the thermal interaction
    Research Report : R06016