The Proceedings of the Symposium on Environmental Engineering
Online ISSN : 2424-2969
2004.14
Session ID : 117
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Development of toilet jet sound based on sound quality evaluation
Yasuko NISHIJIMANobuyuki OKUBOTakeshi TOIHiroshi SHIGEFUJITakeshi SHIMIZU
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract
A rest room is required in comfortable living space. There's a tank less toilet going around because a space is excluded recently. But toilet jet that is specific for tank less toilet becomes a problem for the living environment noise. So this paper describes the improvement of sound quality of toilet jet. An acrylic board model is made for taking a picture of the flushing mechanism by a high-speed video camera. It is found that the jet noise generates many bubbles involved in water current, and in order to reduce noise, the form of a nozzle is changed. For the result is evaluated, the relationship between sound quality of toilet jet and human sensation is investigated by using sound metrics and vital data.
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© 2004 The Japan Society of Mechanical Engineers
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