The Coaxial Pipe Electric Heating System for Pipelines

1983 ◽  
Vol 105 (4) ◽  
pp. 469-474 ◽  
Author(s):  
M. Koyanagi ◽  
H. Hojo ◽  
A. Nagamune ◽  
J. Ogata
Keyword(s):  
Experimental Study ◽  
Crude Oil ◽  
Electric Heating ◽  
Heating System ◽  
Mechanical Tests ◽  
Electromagnetic Analysis ◽  
Submarine Pipeline ◽  
Long Distance ◽  
Heating Systems ◽  
Ac Current

To transport highly viscous crude oil efficiently through pipelines, some electric heating systems have been conventionally used. But they include heating cables or tubes, which are troublesome in submarine pipeline construction. A new electric heating system without a cable has been developed and is applicable to long-distance submarine pipelines. This system has a coaxial steel pipe structure, using the pipes as a heater by applying AC current to this coaxial circuit. In this paper, electromagnetic analysis on this system, experimental study using a 30-m length test pipeline, and mechanical tests on the electric insulating structure of the system are described.

Experimental study of under-floor electric heating system with shape-stabilized PCM plates

2005 ◽  
Vol 37 (3) ◽  
pp. 215-220 ◽  
Author(s):  
Kunping Lin ◽  
Yinping Zhang ◽  
Xu Xu ◽  
Hongfa Di ◽  
Rui Yang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Electric Heating ◽  
Heating System

scholarly journals Analysis and Optimization of Dual-Heating System Costs

2019 ◽  
Vol 19 (2) ◽  
pp. 48-55
Author(s):  
L. Năstase ◽  
H. Andrei ◽  
E. Lungu ◽  
Veronica Dulea ◽  
E. Diaconu
Keyword(s):  
Social Life ◽  
Cost Optimization ◽  
Electric Heating ◽  
Heating System ◽  
Point Of View ◽  
Monitoring And Control ◽  
Global Energy ◽  
Heating Systems ◽  
Optimization Function ◽  
Comparative Results

AbstractThe importance of the heating systems is given both by the quality brought to the social life and from the point of view of pollution. Environmental pollution, global energy crisis as well as global energy policy and our gas heating systems. This motivating reason for the heating system, in terms of their viability and pollution reductions, is the future. In this article a dual heating system is presented, while an electric heating system and one of the gases, the care is coordinated by a monitoring and control system. The operating strategy of the two systems is dictated by an algorithm and a cost optimization function. The use of a dual heating system is the result of comparative results regarding the measurement of the measures and the simulation of the algorithm.

Application Analysis and Economical Study on and Under-Floor Electric Heating System With Superconducting Liquid in China

2007 ◽  
Author(s):  
Guohua Shi ◽  
Xutao Zhang ◽  
Songtao Liu ◽  
Weitang Zhang ◽  
Hong Wang
Keyword(s):  
Electric Energy ◽  
Electric Heating ◽  
Heating System ◽  
Cable System ◽  
Heating Systems ◽  
Heating Cable ◽  
Electricity Load ◽  
Set Up ◽  
Radiant Floor Heating ◽  
Heating Mode

An under-floor electric heating system with superconducting liquid was manufactured. This system can charge heat by using cheap nighttime electricity and discharge the heat stored at daytime, with the merits of decreasing electricity load. In the present work, the operating principle of the system is discussed, and its characteristics are analyzed. In order to study the system’s thermal property, one prototype room with the system and the other room with a heating cable system were set up in Beijing. The experimental results testify the feasibility and comfort of the heating mode and show that it can save 19% electric energy compared with the heating cable system. To analyze the economical efficiency of the system, an economic comparison was made. The result indicates that the system is most economical in comparison with other radiant floor heating systems.

scholarly journals Technical and Economic Analysis of the External Surface Heating System on the Example of a Car Park

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6530
Author(s):  
Krzysztof Nowak ◽  
Sławomir Rabczak
Keyword(s):  
Heat Pump ◽  
Negative Impact ◽  
Electric Heating ◽  
Complete Removal ◽  
Heating System ◽  
Fuel Oil ◽  
Hard Coal ◽  
Heating Systems ◽  
Car Park ◽  
Snow And Ice

In winter, for our own safety, as well as for the comfort of the user, we are obliged to remove or mitigate the defects related to the accumulation of snow and ice on flat surfaces, such as: pavements, stairs, driveways, parking lots, roofs, squares, or sports fields. Snow and ice from these surfaces can be removed by a variety of methods. Chemical, mechanical, or heating methods are most often used. Mechanical and manual methods cannot always be used. They also often do not allow the complete removal of snow and ice from the surface. In chemical methods, the chemicals used can have a negative impact on the environment and the surface itself. Heating external surfaces using electric heating cables or liquid-filled pipes is one of the safest and most effective ways to remove snow and ice from the available methods. The article presents a technical concept of a car park heating system with the use of various heating systems. The main thesis of the work is the possibility of using heating systems to maintain the quality of external parking spaces in winter. The authors tried to prove that it is possible to use a number of heating systems based on commonly known energy carriers for this purpose. The concept was made for the conditions prevailing in Poland. The systems were compared in financial and ecological terms. The following systems were analyzed: electric heating, heating with the use of a heat pump with a vertical ground heat exchanger, and liquid heating with various heat sources (including heat from the district heating network, hard coal boiler, biomass boiler, fuel oil boiler, natural gas boiler). From a cognitive point of view, it was interesting to examine whether the proposed installation with a heat pump is technically feasible and economically and ecologically justified.

scholarly journals Flowline with Resistive Electric Heating System

2015 ◽  
Vol 2 ◽  
pp. 140
Author(s):  
Alexander Pavlov ◽  
Igor Plohov
Keyword(s):  
Electric Heating ◽  
Heating System ◽  
Electrical Heating ◽  
Heat Output ◽  
Heating Systems ◽  
Polymer Tube

The article deals with electric heating systems applied in flowlines for providing their continued operation in wintertime. The problem of obtaining a given distribution of heat output along the length of the pipeline with electric heating system has been solved. It allows to maintain the same temperature sections being in different environments. As the object of investigation a polymer tube with an integrated electrical heating is chosen.

scholarly journals STUDY AND OPTIMIZATION OF ELECTRIC HEATING FOR OIL AND PETROLEUM PRODUCTS PIPELINE

2017 ◽  
Vol 3 ◽  
pp. 242 ◽  
Author(s):  
Alexander Pavlov ◽  
Igor Plohov ◽  
Sergei Drozdov ◽  
Vadim Smirnov
Keyword(s):  
Electric Heating ◽  
Heating System ◽  
Petroleum Products ◽  
Operating Conditions ◽  
Design Parameters ◽  
Energy Losses ◽  
The Finite Element Method ◽  
Optimal Operating ◽  
Heating Systems ◽  
Products Pipeline

The objectives of the study are to analyze the transients in heated pipelines using the finite element method and the achievement of reduction of energy losses during transportation of liquids in pipelines with electric heating systems by determining the optimal operating conditions and design parameters of the pipeline and electric heating system

scholarly journals SELECTION OF HEATING SYSTEM BASED ON ACQUISITION AND OPERATING COSTS FOR FAMILY HOUSES

2016 ◽  
Author(s):  
Miloslav Novotný ◽  
Karel Šuhajda ◽  
Radim Kucera ◽  
Eva Šuhajdová
Keyword(s):  
Electric Heating ◽  
Heating System ◽  
Operating Costs ◽  
Financial Return ◽  
Heating Systems ◽  
Promethee Method ◽  
Detached House ◽  
And Control ◽  
Family House ◽  
Selection Of

The aim of this study is to evaluate mutual dependences and significance of the input factors of a heating system for a family house. The input factors which are being most commonly considered are operating costs, acquisition prices on financial return rate, life span of these systems or requirements for maintenance and control. This research is focused on the analysis of three different heating systems in the common detached house; electric heating foils, heat pump and gas boiler. The building itself is evaluated in three variants; with and without a ventilation unit and with adjusted structure composition. To analyse the parameters mentioned above the Promethee method (multicriterial analysis) has been used.

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
Keyword(s):  
Induction Heating ◽  
Thermal Exposure ◽  
Heating System ◽  
The Arctic ◽  
Process Conditions ◽  
Heating Systems ◽  
Fluid Properties ◽  
Low Efficiency ◽  
Extreme North ◽  
Induction Heating System

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.

The Heating System of Agricultural Facilities Using Excess Heat Power Transformers

2020 ◽  
Vol 67 (1) ◽  
pp. 42-47
Author(s):  
Anatoliy I. Sopov ◽  
Aleksandr V. Vinogradov
Keyword(s):  
System Design ◽  
Heat Supply ◽  
Cooling System ◽  
Power Transformer ◽  
Electric Heating ◽  
Heating System ◽  
Power Transformers ◽  
Large Power ◽  
Excess Heat ◽  
Power Centers

In power transformers, energy losses in the form of heat are about 2 percent of their rated power, and in transformers of large power centers reach hundreds of kilowatts. Heat is dissipated into the environment and heats the street air. Therefore, there is a need to consume this thermal energy as a source of heat supply to nearby facilities. (Research purpose) To develop methods and means of using excess heat of power transformers with improvement of their cooling system design. (Materials and methods) The authors applied following methods: analysis, synthesis, comparison, monographic, mathematical and others. They analyzed various methods for consuming excess heat from power transformers. They identified suitable heat supply sources among power transformers and potential heat consumers. The authors studied the reasons for the formation of excess heat in power transformers and found ways to conserve this heat to increase the efficiency of its selection. (Results and discussion) The authors developed an improved power transformer cooling system design to combine the functions of voltage transformation and electric heating. They conducted experiments to verify the effectiveness of decisions made. A feasibility study was carried out on the implementation of the developed system using the example of the TMG-1000/10/0.4 power transformer. (Conclusions) The authors got a new way to use the excess heat of power transformers to heat the AIC facilities. It was determined that the improved design of the power transformer and its cooling system using the developed solutions made it possible to maximize the amount of heat taken off without quality loss of voltage transformation.

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