การออกแบบและพัฒนาอุปกรณ์ป้องกันเสียงเครื่องจักรด้วยวัสดุดูดซับเสียงจากแกลบ ขุยมะพร้าว และฟางข้าว: Design and Development of Machinery Noise Protection Equipment Using Sound Absorbing Materials Made from Rice Husks, Coconut Husks and Rice Straw

Yothin Ponprathom; Visa Phacharoen; Netnapa Rueangman

Authors

Yothin Ponprathom Occupational Health and Safety Program, Faculty of Science and Technology, Bansomdejchaopraya Rajaphat University, Bangkok
Visa Phacharoen Occupational Health and Safety Program, Faculty of Science and Technology, Bansomdejchaopraya Rajaphat University, Bangkok
Netnapa Rueangman Occupational Health and Safety Program, Faculty of Science and Technology, Bansomdejchaopraya Rajaphat University, Bangkok

Keywords:

Sound absorbing materials, Rice husk, Coconut husk

Abstract

Abstract

This research is a development study aimed at designing and developing a noise protection device for machinery using sound-absorbing materials made from rice husks, coconut husks, and rice straw. The device was tested in a sausage production factory over an 8-hour work period, with a sample population of 23 participants. Data were collected using a questionnaire, and statistical analysis was conducted using descriptive statistics, such as percentage analysis, mean, and standard deviation.The study found that the noise protection device using rice husk material reduced the noise level by 2.9 dB(A), coconut husk by 2.4 dB, and rice straw by 2.1 dB(A). The rice husk material effectively reduced noise in the frequency range of 500-4000 Hz, while coconut husk was more effective in reducing noise in the frequency range of 8000-16000 Hz.The satisfaction analysis showed that the safety aspect of the coconut husk material had an average score of 3.82, indicating a high level of satisfaction, with a standard deviation of 0.70. The strength aspect had an average score of 3.85, also reflecting high satisfaction, with a standard deviation of 0.99. The comfort of use had an average score of 3.82, and the maintenance aspect had an average score of 3.83, both indicating a high level of satisfaction, with standard deviations of 0.93 and 0.91, respectively.

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Design and Development of Machinery Noise Protection Equipment Using Sound Absorbing Materials Made from Rice Husks, Coconut Husks and Rice Straw