The International                        UPDATED 30th November 2011
Journal of Ventilation
Published Quarterly www.ijovent.org.uk          Subscribe to Journal  Online 

December 2011 Edition of the IJV now Published  Call for Papers

IJV now included in the Science Citation Index

Paper 10

Airflow Control for Personal Air-Conditioning in a Partly Unoccupied Zone using a Multi-Flow Ceiling Cassette Type Packaged Air-Conditioner

  Ryo Ishiguro¹, Tomoyuki Chikamoto¹, Satoshi Hashimoto², Ryozo Inada², Atsushi Nishino² and Takashi Akimoto³

¹Ritsumeikan University, Shiga, Japan  
²Daikin Industries Ltd., Shiga, Japan
³Shibaura Institute of Technology, Tokyo, Japan

Abstract

There are various demands for air-conditioning in each office space resulting from the variability of thermal distribution caused by a bias of heat sources. Furthermore, individual demands on the thermal environment are diverse. Therefore, it is difficult to satisfy all demands using conventional air-conditioning systems since these assume perfect mixing. Instead, demand may vary with the result that some spaces could be excessively or unnecessarily cooled. This paper examines an airflow and temperature control for personal air-conditioning. This is aimed at providing personal comfort on demand while not unnecessarily cooling unoccupied zones. The method utilizes a multi-flow ceiling cassette type packaged air-conditioner. In this study, thermal comfort and energy performance were analysed using CFD (Computational Fluid Dynamics). From this a personal air control and thermal comfort strategy was developed.

Key words:  personal air-conditioning, airflow control for unoccupied zone, thermal comfort.

Clima 2010 Paper:
Compilation Organised by: 
Prof. Ahmet Arisoy
ITU Makina Fakültesi, Inönü Cad., Gümüssuyu, 
ISTANBUL - TURKEY

Contents

Paper 1
Hybrid Ventilation for Multi-Zone Buildings - Development of Optimal Control Strategies through Experiments and Dynamic Modelling

Paper 2
Ventilation Control Approach for Acceptable Indoor Air Quality and Enhancing Energy Saving In Thailand

Paper 3
Editorial: Clima 2010 World Congress: Sustainable Energy Use in Buildings 9th - 12th May 2010, Antalya, Turkey

Paper 4
A Case Study of the Energy Saving Potential of Stratum Ventilation

Paper 5
Numerical Assessment of the Performance of Ventilation Strategies in a Single-Family Building

Paper 6 
Hybrid Ventilation System Simulation for Several Cities in Turkey  

Paper 7
Robust Occupancy-Based Distributed Demand Control Ventilation

Paper 8
Experimental Study of Air Distribution and Ventilation Effectiveness in a Room with a Combination of Different Mechanical Ventilation and Heating/Cooling Systems

Paper9
Experimental Studies on Air Distribution Using Ceiling Slot Diffusers in a Room  

Paper 10
Airflow Control for Personal Air-Conditioning in a Partly Unoccupied Zone using a Multi-Flow Ceiling Cassette Type Packaged Air-Conditioner