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2005•AIJ Journal of Technology and DesignOpen access

EXPERIMENTAL STUDY ON THERMAL ENVIRONMENT NEAR LARGE OUTLETS(Environmental Engineering)

Yuichi Takemasa, Shin Hayakawa, Masahiro Katoh, Takamichi MURASE

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Abstract

This paper describes the results of experiments in terms of the thermal environment near large outlets for natural ventilation. Four types of outlets were tested; outlets from the ceiling, tilting openable windows, the floor and the wall. Air temperature distributions and air velocity distributions were measured for different combinations of outlet air temperatures and outlet velocities. Destributions of 'draft rating', which indicates the percentage of the dissatisfied due to draught, are also evaluated. The measured results provides basic data for the thermal environment near large outlets for various combinations of outlet air temperature and velocities.

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What this paper is about

This paper describes the results of experiments in terms of the thermal environment near large outlets for natural ventilation. Four types of outlets were tested; outlets from the ceiling, tilting openable windows, the floor and the wall. Air temperature distributions and air velocity distributions were measured for different combinations of outlet air temperatures and outlet velocities. Destributions of 'draft rating', which indicates the percentage of the dissatisfied due to draught, are also evaluated. The measured results provides basic data for the thermal environment near large outlets for various combinations of outlet air temperature and velocities.

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Available abstract

This paper describes the results of experiments in terms of the thermal environment near large outlets for natural ventilation. Four types of outlets were tested; outlets from the ceiling, tilting openable windows, the floor and the wall. Air temperature distributions and air velocity distributions were measured for different combinations of outlet air temperatures and outlet velocities. Destributions of 'draft rating', which indicates the percentage of the dissatisfied due to draught, are also evaluated. The measured results provides basic data for the thermal environment near large outlets for various combinations of outlet air temperature and velocities.

Key concepts: Ceiling (cloud), Air velocity, Environmental science, Thermal, Natural ventilation, Air temperature, Meteorology, Ventilation (architecture)

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