Study on the Thermal Floor Storage by Air Supply through the Ceiling Plenum Chamber

• Project/Area Number: 08650702
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Architectural environment/equipment
• Research Institution: Hokkaido Institute of Technology
• Principal Investigator: SUZUKI Kenzo Hokkaido Institute of Technology, Department of Architecture, Professor, 工学部・建築工学科, 教授 (70002235)
• Project Period (FY): 1996 – 1997
• Project Status: Completed (Fiscal Year 1997)
• Budget Amount: ¥2,300,000 (Direct Cost: ¥2,300,000); Fiscal Year 1997: ¥500,000 (Direct Cost: ¥500,000); Fiscal Year 1996: ¥1,800,000 (Direct Cost: ¥1,800,000)
• Keywords: Thermal floor storage / ceiling plenum chamber / radiative heat transfer / continuous air-conditioning / outside insulation / thermal environment / 省エネルギー / 熱容量 / 空気調和 / ふく射伝熱 / 非定常伝熱プログラム

Research Abstract

A continuous air-conditioning system with a ceiling plenum chamber is studied in order to reduce the peak power demand in the daytime and to improve the thermal environment in an office building. Two computer programs, one is based on the absorption factor method and another is based on the environmental temperature method are developed for more accurate simulation on aspect of radiative heat transfer.
The latter is practical because its simple input. A series of simulation for the model office building are carried out to examine the performance of the air-conditioning system. The results shows that this system is beneficial in regards to thermal storage and its MRT is lower then any other system. It is also found that swinging room temperature to some degree during the day can reduce the peak cooling load in the afternoon more effectively. And 1/3 reduction of the peak cooling load is obtained by measurements using a continuous air-conditioning with a ordinary duct system.

Research Products

• [Publications] 鈴木 憲三: "Study on the Night-time Ventilation for Cooling a Building Having Thick walls with Outer Insulation" The 14th International Conference on Passive and Low Energy Architecture. 177-182 (1996)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] 三浦 寿幸: "Computer Analysis of the Cooling Load in an Office Building through Applied Thermal Storage by Air Supply through the Ceiling Plenum" The 7th Intemational Conference on Thermal Energy Storage. 181-186 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Kenzo SUZUKI: "Study on the Night-time Ventilation for cooling a Building Having Thick Walls with Outer Insulation" The 14th International Conference on Passive and Low Energy Architecture. 117-182
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Toshiyuki MIURA: "Computer Analysis of Cooling Load in an Office Building through Applied Thermal Storage by Air Supply through the Ceiling Plenum" The 7th International Conference on Thermal Energy Storage. 181-186
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] T.Miura and K.Suzuki: "Computer Analysis of the Cooling Load in an Office Building through Applied Thermal Storage by Air Supply through the Ceiling Plenum" The 7th International Conference on Thermal Energy Storage. Vol.1. 181-186 (1997)
• [Publications] Kenzo SUZUKI: "Study on the Night-time Ventilatiion for cooling the building having thick walls with outer insulation" The 14th International Conference on Passive and Low Energy Architecture. Vol.3. 177-182 (1997)