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 132
- Downloads 0
Methods of Automatic Control Applied to a Resistive Furnace for Thermal Treatments
The paper deals with the study of two methods used for the automatic control of the temperature of the parts from inside a resistive furnace for thermal treatment. The furnace was previously projected and simulated, as p...
Transmission and Processing of the Measurement Signals Generated by a Transformer for the Current Measurement in Medium Voltage Networks
The trends to improve the performances of the classic instrument transformers was oriented to introducing new materials, components and methods in its design, manufacturing and operation. This paper presents the tech...
Hybrid Systems Modeling Approach with Petri Nets
The purpose of this paper is to present the achievement of the Hybrid Petri Nets techniques used for modeling and behavioral analysis of a class of hybrid systems. In our sense, a dynamic hybrid system contains at least...
DESIGN AND PERFORMANCES OF COUPLING PASSIVE FILTERS IN THREE-PHASE SHUNT ACTIVE POWER FILTERS
The passive interface filter represents the link between the power grid and the shunt active filter. The interface filter is used both to obtain a good dynamic of the compensating current and to limit the high frequency...
The Resistive Tubular Heater - Mathematical and Simulation Model
It is essential to achieve the mathematical model and the simulation when designing complex installations. This allows the analysis of different operating modes and the behavior of the existing system. It enables notific...