Irfan Abd Rahim
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Preferred name
Irfan Abd Rahim
Official Name
Abd Rahim, Irfan
Alternative Name
Irfan, A. R.
Abd. Rahim., Irfan
Irfan, Abd Rahim
Abd Rahim, Irfan
Rahim, Irfan Abd
Main Affiliation
Scopus Author ID
56500369900
Researcher ID
GMC-2925-2022

Research Output
Now showing 1 - 3 of 3
  • Publication
    Investigation performance of heat exchanger on thermoacoustic heat engine for harvesting a waste heat
    ( 2013)
    Irfan Abd Rahim
    ;
    Md. Saidin Wahab
    ;
    Mohd. Zubir Yahaya
    ;
    Mohd Zarhamdy Md Zain
    A green technology of acoustic of fluid-structure interactions become an emerging technology today, a call thermoacoustic heat engine. Thermoacoutics heat engine systems convert the energy on a harvesting from a waste heat energy and convert to an electrical energy. That component of devices a call a hot heat exchangers. This paper study was focused on a new design of thermoacoustics heat exchanger and investigation of its performance in terms of thermal analysis. A conceptual design was produced with three designs of hot heat exchangers, which are wire-type, finger-type and star-type. Commercial code ANSYS-CFX software are used on the evaluation, the heat exchanger’s designs were simulated with two thermal conditions which are steady state and transient heat conduction. Materialselection from copper and aluminium a chosen to look-out the engagement between theoretical and numerical study. There are three inlet temperatures that are assumed will be supplied by constant waste heat which are 200°C, 350°C and 500°C.The star-type design has the highest value of heat conduction through a fin heat conduction with copper as a material which is 32.84W. Star-type hot heat exchanger recorded the fastest time to distribute temperature compared to wiretype and fingertype heat exchanger. Result shown the combination between star-type design and copper material will produce a good agreement to design a hot heat exchanger.
  • Publication
    Study on the optimal stack diameter on the efficiency of thermoacoustic engine
    (AIP Publishing, 2023)
    Irna Farikhah
    ;
    Elsayed Abdelhameed
    ;
    Harto Nuroso
    ;
    Mega Novita
    ;
    Dian Marlina
    ;
    Kwartriani Rahmatunnisa
    ;
    Irfan Abd Rahim
    ;
    Mohd Zarhamdy Bin Md Zain
    ;
    Khairunnisa Mohd. Paad
    ;
    Ahmad Nadhif Masruri
    The scarcity of energy resources has been attracting some researchers to find some renewable energy alternative. On the other hand, there are many waste heats from industry which are harmful for our environment. The waste heat can be converted into useful energy using thermoacoustic technology like thermoacoustic engine. There are some parameters have impact on the engine efficiency. One of them is stack's diameter of the thermoacoustic engine. Therefore, the aim of the research is to find the optimal stack's diameter. The investigation was conducted numerically. It was found that the optimal stack's diameter is 2 cm and the efficiency of the thermoacoustic engine is 36 %.
  • Publication
    Basic study converting of sound pressure to electricity with arrangement of sound speaker using thermoacoustic technology
    (IOP Publishing Ltd., 2020)
    Irfan Abd Rahim
    ;
    C M N Faiz
    ;
    M Z M Zarhamdy
    ;
    Norshah Afizi Shuaib
    ;
    A Azlida
    This paper describes the suitability of a loudspeaker to be used as a linear alternator. The present study is intended to clarify experimentally that the ability of loudspeaker to detect a frequency of sound wave by applying the sound into a resonator with the different of length. The result of the experiment will determine the suitable length of resonator that give the best reading. The linear alternator is a linear motor which commonly used as an electrical generator. It is a type of alternating current electrical generator. The function of an alternator is to convert mechanical energy to electrical energy. The linear alternator operate under the principle of electromagnetic induction. Unlike linear alternator, other alternator work in rotary motion while the linear alternator work in linear motion. Electromagnetic induction is a result of an electromotive force across an electrical conductor cause by the dynamic interaction with magnetic field. The data of the experiment was conducted based on the three length of resonator. Based on the experiment, all three resonator give the best reading when the operating frequency of 200 Hz was used. The peak to peak voltage recorded for 100 mm length was 776 mV while the peak to peak voltage recorded for 150 mm length was 824 mV. The last resonator give the reading of 776 mV. For the decibel reading, the 100 mm resonator give the reading of 100.2 dB. The resonator of 150 mm give reading of 98.5 dB and the 200 mm give decibel reading of 99.8 dB. For the experiment with heat engine, the highest peak to peak reading is 40.7 mV and the decibel reading is 110.9 dB.
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