Innovative electrotechnological systems to provide the temperature modes of technological pipelines

2019 ◽  
Vol 2 (1) ◽  
pp. 29-39 ◽  
Author(s):  
S. G. Konesev ◽  
P. A. Khlyupin

Introduction: the systems of thermal effects on thermo-dependent, viscous and highly viscous liquids under conditions of the Arctic and the Extreme North are considered. Low efficiency and danger of heating systems based on burned hydrocarbons, heated liquids and steam are shown. Electrothermal heating systems used to maintain thermo-dependent fluids in a fluid state are considered. The evaluation of the effectiveness of the application of the most common electrothermal system — heating cables (tapes). The most effective electrothermal system based on induction technologies has been determined. Materials and methods: considered methods of thermal exposure to maintain the fluid properties of thermo-dependent fluids at low extreme temperatures. Results: presents an induction heating system and options for its implementation in the Extreme North and the Arctic. Conclusions: induction heating system to minimize loss of product quality, improve the system performance under changing process conditions, eliminate fire product, to reduce the influence of the human factor.

2007 ◽  
Vol 19 (01) ◽  
pp. 27-35 ◽  
Author(s):  
Cheng-Chi Tai ◽  
Ming-Kun Chen

Appling magnetic nanoparticle (MNP) in curing cancers has been a significant subject of medical research. A variety of switched-mode resonant inverters using voltage-fed-type high-frequency applicator with power MOSFET (metal oxide semiconductor field effect transistor) gate has been recently developed for medical use in electromagnetic thermotherapy. In this paper, a MNP heating system is presented and the electrical circuit characteristics of resonant components are analyzed. A half-bridge induction heating incorporate component functions directly at the applicator thereby reducing the size, weight, and cost of MNP heating systems. Preliminary heating results show a rise of about 3.8°C with 10-nm MNP for a 220-kHz frequency during the first 20 min.


2015 ◽  
Vol 764-765 ◽  
pp. 249-253
Author(s):  
Huy Tien Bui ◽  
Sheng Jye Hwang

A barrel heating system will be developed by using induction heating instead of current resistance heating. The experiment results showed the induction heating system can change successfully the current resistance heating system in heated the barrel of injection molding machine. A working coil coupled with magnetic concentrator bars was also considered. Finally, the uniformity of temperature distribution is compared between two barrel heating systems.


Author(s):  
Arnulfo Pérez-Pérez ◽  
Jorge Sergio Téllez-Martínez ◽  
Gregorio Hortelano-Capetillo ◽  
Jesús Israel Barraza-Fierro

In this work, the dimensions of a furnace for melting of ferrous alloys were determined. The furnace has an electromagnetic induction heating system. In addition, the parameters of electrical power supply such as frequency and power were calculated. A 5kg cast steel mass with a density of 7.81 kg / dm3 was proposed. This corresponds to a crucible volume of 0.641 dm3. The frequency was obtained from tables, which take into account the diameter of the crucible, and its value was 1 KHz. The energy consumption was determined with the heat required to bring the steel to the temperature of 1740 K, the energy losses through the walls, bottom and top of the crucible. This value was divided between the heating time (30 minutes) and resulted in a power of 4.5 KW. The development of the calculations shows that the induction heating is an efficient process and allows a fast melting of ferrous alloys.


2018 ◽  
Vol 99 (1-4) ◽  
pp. 583-593 ◽  
Author(s):  
Dong Kyu Kim ◽  
Young Yun Woo ◽  
Kwang Soo Park ◽  
Woo Jeong Sim ◽  
Young Hoon Moon

1995 ◽  
Vol 31 (3) ◽  
pp. 2158-2161 ◽  
Author(s):  
Ghun-Deok Suh ◽  
Hong-Bae Lee ◽  
Song-Yop Hahn ◽  
Tae-Kyung Chung ◽  
Il-Han Park

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