Optimal Heating Time for Cylindrical Items Removal from the Shaf
Journal Title: ANALELE UNIVERSITATII DIN CRAIOVA - Seria Inginerie electrica - Year 2015, Vol 39, Issue 39
Abstract
For easy removal of cylindrical items from the shaft, they are heated on their external cylindrical surface for thermal dilatation. The best result is obtained if the temperatures gradient inside the item is highest on the separation surface. In the paper, considering a suddenly occurring constant high temperature on the external cylindrical surface of the homogeneous item, the shaft with the same thermal diffusivity and neglecting the contact thermal resistance, the transitory thermal field is analyzed and optimal time for item removal is determined. Example is given.
Authors and Affiliations
Grigore Cividjian
Keywords
Related Articles
- EP ID EP117626
- DOI -
- Views 139
- Downloads 0
Energetic Analysis of the Drying Process of Cur-rent Transformers from 110 kV Ciungetu Power Station
Currently, at company Hidroserv Râmnicu Vâlcea, the drying of current transformers used in power transformer stations is done by a combination between induction and conduction heating at the frequency of 50 Hz. Obviously...
“OPEN-ENDED LABORATORY” METHOD APPLIED IN THE CONCEPTION OF A TEST BENCH TO SIMULATE A DIESEL - ELECTRIC TRANSMISION
This paper describes the application of a creative method (open-ended laboratory) in a research team work, to create an experimental bench which could be used, with various objectives, in the study of Electrical Machines...
Control circuit of an Electronically Controlled Capacitor for the Optimization of the Single Phase Induction Motor
The control circuit of an Electronically Controlled Capacitor (ECC) for the optimization of the Single Phase Induction Motor (SPIM) with auxiliary winding is presented. The control circuit is based on a fixed value...
Analysis of Losses in Brushless Direct Current Motors and Their Influence upon Operation Characteristics
Researches regarding the optimum design and construction of brushless direct current motors are very present, owing to their use in small-dimension vehicles (electrical scooter, electrical bicycle, motor-scooters, electr...
Estimation of Certain Power in Single-phase Network and DC Circuits
Requirement of electrical energy is in order to operate various domestic and industrial devices like ap-pliances, equipment and machinery. Electrical energy per time unit represents electrical power transferred. Well kno...