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Hasil Pencarian

Ditemukan 5425 dokumen yang sesuai dengan query
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Edwards, D.K. (Donald Kenneth)
Washington, New York: Hemisphere; McGraw-Hill, 1978
621.402 2 EDW t
Buku Teks  Universitas Indonesia Library
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Habibie Muhammad Ega
"Energi adalah suatu dasar kekuatan dalam kehidupan yang bentuknya sangat beragam. Salah satu bentuk energi yang sering dijumpai adalah perubahan temperatur pada suatu objek. Salah satu sifat energi adalah dapat berpindah dari satu tempat ke tempat lainnya jika terdapat perbedaan nilai temperatur antar tempat tersebut. Sifat ini dipelajari di dalam ilmu perpindahan kalor. Terdapat 3 bentuk perpindahan kalor yaitu konduksi, konveksi, dan radiasi. Pada prinsipnya bentuk konveksi dan radiasi memiliki sifat yang unik yaitu perantara perpindahan kalornya tidak dapat tergambarkan secara langsung. Konveksi yang memiliki sifat perpindahan kalor melalui medium fluida dan radiasi yang memiliki sifat perpindahan kalor melalui gelombang elektromagnetik. Kedua sifat ini memiliki parameter-parameter tersendiri yang mempengaruhi perpindahan fluks kalornya. Oleh karena itu, fenomena perpindahan kalor secara konveksi dan radiasi sangat unik dan menarik untuk diteliti lebih lanjut. Pada penelitian ini dilakukan rekonstruksi fenomena perpindahan kalor secara radiasi menggunakan alat pengukur fluks kalor radiasi termal yang telah didesain sedemikian rupa agar menyesuaikan dengan parameter yang sesuai teori. Dalam rekonstruksi ini juga digunakan teori blackbody untuk mendapatkan nilai maksimum dari perpindahan kalor secara radiasi. Selain melakukan rekonstruksi dan mengukur nilai radiasi termal, alat ini juga dapat menggambarkan dan mengukur nilai fluks kalor secara konveksi dari udara yang mengalir dari sumber panas pada alat ini yang menyebabkan terjadinya lapisan batas termal. Pada penelitian ini akan membandingkan nilai fluks kalor secara konveksi dan radiasi dari berbagai kondisi.

Energy is a strength for sustained a physical or mental activity that have a many types. One of the types that very familiar is temperature shifting in an object. This type energy works because there are differential temperature between the objects. This kind of energy is call heat transfer. There are 3 type of heat transfers, which are conduction, convection, and radiation. Based on work principal, convection and radiation have an interesting and unique process because they dont need have to a medium for energy transfer. The process also cant be actual visualized. Convenction do needs medium to transfer energy which is a fluid. Radiation doesnt needs medium to transfer energy because it transfer with electromagnetic waive. This feature have their own parameters that effect the heat energy transfer process. Because of that, convection and radiation are intersting topic to be discuss. This paper discuss reconstruct of a radiation thermal process using a radiation thermal measurement device. This device have been design that followed a parameters of the feature. In this reconstruction, there are an application of blackbody theory to have a maximum result of thermal radiation. This paper also describe and measure fluks kalor on convection from air that flow around heat source and create boundary layer. This research will compare value of fluks kalor from radiation and convection based on many conditions."
Depok: Fakultas Teknik Universitas Indonesia, 2019
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
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Jaluria, Y.
Oxford: Pargamon Press, 1980
536.25 JAL n (1);536.25 JAL n (2)
Buku Teks SO  Universitas Indonesia Library
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Siegel, Robert
Tokyo: McGraw-Hill Kogakusha, 1972
536.33 SIE t
Buku Teks SO  Universitas Indonesia Library
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Sparrow, E.M.
Belmont, CA: Brooks/Cole, 1970
536.33 SPA r
Buku Teks SO  Universitas Indonesia Library
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Cussler, E.L.
Cambridge, UK: Cambridge university press, 2009
660.294 CUS d
Buku Teks SO  Universitas Indonesia Library
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Mrowec, Stanislaw
Amsterdam: Elsevier , 1980
530.41 MRO d
Buku Teks SO  Universitas Indonesia Library
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New York: Taylor & Francis Group, 2008
363.179 INT
Buku Teks  Universitas Indonesia Library
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Liou, Kuo-Nan
Orlando: Academic Press, 1980
551.527 3 LIO i
Buku Teks  Universitas Indonesia Library
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Shang, De-Yi
"This book presents a theoretical study of heat transfer due to laminar natural convection of nanofluids, using Al2O3-water nanofluid as an example. An innovative method of similarity transformation of velocity fields on laminar boundary layers is applied for the development of a mathematical governing model of natural convection with actual nanofluids, and a novel model of the nanofluid's variable thermophysical properties is derived by a mathematical analysis based on the developed model of variable physical properties of fluids combined with the model of the nanofluid's thermal conductivity and viscosity. Based on these, the physical property factors of nanofluids are produced, which leads to a simultaneous solution for deep investigations of hydrodynamics and heat transfer of nanofluid's natural convection.
The book also proposes novel predictive formulae for the evaluation of heat transfer of Al2O3-water nanofluid’s natural convection. The formulae have reliable theoretical and practical value because they are developed by rigorous theoretical analysis of heat transfer combined with full consideration of the effects of the temperature-dependent physical properties of nanofluids and the nanoparticle shape factor and concentration, as well as variations of fluid boundary temperatures. The conversion factors proposed help to turn the heat transfer coefficient and rate of fluid natural convection into those of nanofluid natural convection. Furthermore, several calculation examples are provided to demonstrate the heat transfer application of the proposed predictive formulae."
Switzerland: Springer Cham, 2019
e20502123
eBooks  Universitas Indonesia Library
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