Numerical Cooling Simulation on Laptop Heat Sinks With Variations of Different Airflow Speeds

Syamsuri, Syamsuri; Riani, Novi Indah

doi:10.30870/vanos.v2i2.2921

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Objek penelitian kali ini saya memilih simulasi kombinasi perpindahan panas konveksi bebas dan perpindahan panas radiasi dalam square cavity menggunakan software CFD. Di sisi lain, CFD juga mampu digunakan untuk mensimulasikan berbagai model turbulensi, konveksi dan radiasi dan aliran multifase lainnya [1][2][3]. Sehingga perangkat lunak software CFD ini digunakan dalam penelitian ini.…”

Section: Pendahuluanunclassified

Simulasi numerik kombinasi perpindahan panas konveksi alami dan radiasi pada square cavity

Syamsuri

Suheni

Maulana

et al. 2020

Turbo

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Natural convection is very important in some cases such as glass windows, solar collectors, electronic measuring devices (cooling devices for electronic instruments) and building materials that use insulation. In this research, will be seen the phenomenon of natural convection that occurs in square cavity. The method used for simulation is computational fluid dynamics or CFD. The model used is the 2D cavity model. In this simulation the value of Rayleigh Number (Ra) was varied i.e. 103,104,105 and 106. From this research, it is found that the higher the value of Ra in cavity, the higher the value of the average Nusselt Number (𝑁̅𝑢 ) on the wall which has a high temperature. Ra = 103 so that 𝑁̅𝑢 = 1.17. Ra =104, so that 𝑁̅𝑢 = 2.2. Ra = 105, so that 𝑁̅𝑢 = 4.47. Ra = 106, and then so that 𝑁̅𝑢 = 8.95. Based on the value and contour of the flow the smaller the Ra value in the square cavity, the isothermal line phenomenon that appears will be more vertical. The greater the Ra value in the cavity, the contour of the stream function will change to an ellipse and finally two vortices will appear.Keywords: Numerical simulation, konveksi, radiasi, square cavity.

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Section: Pendahuluanunclassified

Simulasi numerik kombinasi perpindahan panas konveksi alami dan radiasi pada square cavity

Syamsuri

Suheni

Maulana

et al. 2020

Turbo

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“…Research on "Experimental study of variation of the effect of the Pelton turbine valve opening on electrical energy that has produced to turned on a laptop" has been conducted by [6].…”

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confidence: 99%

Experimental Study of The Alternative Analysis of Cross-Section Variety of Half-Circle, Bowl and Isosceles Triangle to Generate Electricity: A Case Study of Pico Hydro-Pelton Turbines in ITATS Surabaya

2021

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One of the main urgencies of a developing country such as Indonesia is developing energy supply. Under the government regulation, Indonesia thrives the supply of electricity which mainly maintain by fossil fuels such as oil, gas and coal. This energy supply is limited from time to time. To alternate the condition, environment-friendly energy sources need to be developed. One such energy source is Pico hydro with the use of the concept of a hydroelectric power generator. As we know, this type of generator proven only useful in small, remote communities balanced with a small amount of electricity and considerably function with the Pelton turbines. This study focuses to maximize the valve opening of Pelton turbines to give a good distribution system to generate the electricity. The variety of valve opening of 18⁰, 36⁰, 54⁰, 72⁰ and 90⁰ are matched to the variety of cross-section of the half-circle, bowl and Isosceles Triangle. The result of this research is that the greater the valve opening the greater the efficiency system. Type of bowl blade results in greater efficiency of the system than the semicircular and isosceles triangular blade.

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Numerical Cooling Simulation on Laptop Heat Sinks With Variations of Different Airflow Speeds

Cited by 2 publications

References 2 publications

Simulasi numerik kombinasi perpindahan panas konveksi alami dan radiasi pada square cavity

Simulasi numerik kombinasi perpindahan panas konveksi alami dan radiasi pada square cavity

Experimental Study of The Alternative Analysis of Cross-Section Variety of Half-Circle, Bowl and Isosceles Triangle to Generate Electricity: A Case Study of Pico Hydro-Pelton Turbines in ITATS Surabaya

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