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Abstrak :
This book focuses on the electromagnetic and thermal modeling and analysis of electrical machines, especially canned electrical machines for hydraulic pump applications. It addresses both the principles and engineering practice, with more weight placed on mathematical modeling and theoretical analysis. This is achieved by providing in-depth studies on a number of major topics such as: can shield effect analysis, machine geometry optimization, control analysis, thermal and electromagnetic network models, magneto motive force modeling, and spatial magnetic field modeling. For the can shield effect analysis, several cases are studied in detail, including classical canned induction machines, as well as state-of-the-art canned permanent magnet machines and switched reluctance machines. The comprehensive and systematic treatment of the can effect for canned electrical machines is one of the major features of this book, which is particularly suited for readers who are interested in learning about electrical machines, especially for hydraulic pumping, deep-sea exploration, mining and the nuclear power industry.

Abstrak :
Pengembangan model matematika telah dilakukan untuk memprediksi temperatur selama proses canai panas jenis satu tingkat dari suatu pelat baja karbon rendah, dengan menggunakan model thermal yang ada dan data-data eksperimen di laboratorium. Perhatian utama ditujukan untuk memprediksi model temperatur masuk dan keluar rol dengan mengasumsikan temperatur keluar. Hal-hal yang mempengaruhinya adalah perpindahan panas secara radiasi dan konveksi dari permukaan ketika material dibawa dari dapur ke rol, dan perpindahan panas secara konduksi dari material ke rol, serta kenaikan temperatur akibat kerja mekanis ketika material sedang dicanai.

Hasil dari model tersebut dapat digunakan sebagai dasar untuk mengevaluasi temperatur material yang akan dicanai di Iaborastorium tersebut dan dasar untuk pemodelan beban pengerolan dan mikrostruktur. Langkah-langkah untuk memprediksi model temperatur masuk tersebut dapat digunakan sebagai dasar atau pembanding bagi pabrik canai panas untuk mengevaluasi temperatur material.

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A mathematical model has been developed to predict the thermal during a single pass hot rolling of a low carbon steel plate, by using thermal model and data from laboratory experiments. Particular attention was paid to prediction the entry and exit temperature model by assuming the exit temperature. The effects taken into account are radiation and convection from the surface when the material has been reheated until rolled, and conduction to the rolls and the temperature increase due to mechanical work when the material is in the roll gap.

The result of the temperature model can be used for the material temperature evaluation at the laboratory and a basis to predict the rolling force and microstructure evaluation.. The steps of the prediction can be used as a comparison for plants mills to predict their material temperature.