HEAT TRANSFER PROCESSES IN MELTING FURNACE ELEMENTS WHILE USING TRANSPIRATION INSULATION, FUEL REFORMING AND RAW MATERIAL PREHEATING

The purpose of the study was to select technological parameters of the production line of unidirectional thermoplastic polyphenylene sulfide-based tapes. The selection was made relying on the variation of the tape speed, the temperature of the sub-melting furnace, and the calendering module in the simulation of heat transfer processes. Modeling of heat transfer was based on the results of tests to determine the temperatures of phase transitions of a thermoplastic polymer in the composition of composite material and the dependence of the heat capacity of the composite on temperature. The indicated properties of the material were determined by analyzing the dependences obtained during differential scanning calorimetry and thermogravimetric analysis. As a result, the allowable range of distances between the polymer binder melting furnace and the calendering module was determined, which provides the necessary tape temperatures at the stages under consideration and the manufacturability of production. The permissible range of distances between the calendering module and the coiling module was also determined.

Download Full-text

Heat Transfer Simulation on the Wall of Rotary Cast Iron Smelting Furnace Capacity of 1 ton/hour

JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY ◽

10.31289/jmemme.v2i1.1650 ◽

2018 ◽

Vol 2 (1) ◽

pp. 7

Author(s):

Amir Syam ◽

Zulfikar Zulfikar ◽

Muhammad Idris Hutasuhut

Keyword(s):

Heat Transfer ◽

Cast Iron ◽

Temperature Distribution ◽

Simulation Analysis ◽

Melting Furnace ◽

Furnace Wall ◽

Raw Material ◽

Smelting Furnace ◽

Iron Smelting ◽

Heat Transfer Simulation

The rotary smelting furnace is a cast iron smelting furnace with the working principle of raw material rotated in a melting drum. The difficulty of this type of furnace is if the furnace wall is damaged, it will be very difficult to determine the appropriate conduction coefficient material as a replacement material. Numerical simulations are required to obtain the heat transfer information that occurs on the furnace wall. This analysis aims to (1) obtain the temperature distribution occurring in the furnace wall, and (2) obtain the heat transfer coefficient on the wall surface on the inside, center, and outside of the melting furnace. Calculation of numerical simulation in this research is assisted by using Ansys software. The theoretical basis of numerical heat transfer simulation analysis can be determined by using the conduction temperature equation in each node. The load conditions in this case are assumed as thermal loads. The result obtained temperature distribution on the inner wall is 1590 oC, middle 1470 oC, and outside 1104 oC.

Download Full-text

STUDY AND SIMULATION OF HEAT TRANSFER PROCESSES DURING FOAM GLASS HIGH TEMPERATURE PROCESSING

International Journal for Computational Civil and Structural Engineering ◽

10.22337/2587-9618-2018-14-3-153-160 ◽

2018 ◽

Vol 14 (3) ◽

pp. 153-160 ◽

Cited By ~ 2

Author(s):

Sergey V. Fedosov ◽

Maksim O. Bakanov ◽

Sergey N. Nikishov

Keyword(s):

Heat Transfer ◽

High Temperature ◽

Foam Glass ◽

Glass Structure ◽

Raw Material ◽

Transfer Processes ◽

Research Outcomes ◽

The Subject ◽

High Temperature Processing ◽

Adequate Research

The paper presents basic aspects of simulation of pores formation and growth in the foam glass structure process during raw material mixture high temperature processing. The key mathematical approaches to heat transfer processes simulation and the dynamics of the pores radius growth in the raw material mixture structure are presented. The key assumptions and restrictions allowing representing the most adequate research outcomes at this stage of the subject development are outlined.

Download Full-text