Sound And Vibration Analysis Of Portable Air-Conditioning System Using Peltier Module As Power Source

Azman, Muhamad Hillmi Nadim (2019) Sound And Vibration Analysis Of Portable Air-Conditioning System Using Peltier Module As Power Source. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This report is about Sound And Vibration Analysis Of Portable Air-Conditioning System Using Peltier Module As Power Source. Usually, unlike other places that has heavy work activities, cooling load of small private office room is low due to its limited space. It is a big waste to use a compressor-based unit air conditioning in this small area in terms of power consumption and cost. So, the usage of small portable air-conditioning is recommended. The small portable air-conditioning system by using Peltier effect module is subjected to control the comfort level by removing the sensible and latent heat inside the space. Peltier is thermoelectric semiconductor that provides cool and hot plate after electric is supply to the plate. The cool side use to reduce temperature and the hot side is treat in the system. Besides that, the development of this product should consider the noise outcome from the product while its operating because noise level is also one of element to ensure comfortness to the consumer. This is to analyse how product sound level (Primary Sound) would give effect to private office room sound level (Background Sound) and also analyse the vibrations level that emitted from each parts inside product by using suitable measurements instruments to generate statistical analysis for both sound and vibrations level of product that contribute to overall noise level of product. Sound level of product when put inside private office room was measure using Sound Level Meter and the result is when compared to the standard range of sound level in private office room (50 dB), product average sound level did have a little increment which is 68.7 dB. But this result still in safe range of noise level because according to sound level standard range, sound level below 85 dB is consider as in safe range. To prove the result of product sound level, same method of measuring was use and product was measure in acoustic room and the average sound level result obtain was nearly same as in private office room which is 62.4 dB. For vibrations level, each components inside product that produce vibrations was measure using Accelerometer to obtain signal waveform in Time Domain and Frequency Domain. Based on value and patterns of Time Domain and Frequency Domain waveform, components that lead to higher vibration amplitudes was Water Pump

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