Energy Saving in Electric Heater of Carbon Fiber Stabilization Oven

Badii, Khashayar; Naebe, Minoo; Golkarnarenji, Gelayol; Dhami, Navjeet; Atkiss, Stephen; Buckmaster, Derek; Fox, Bronwyn; Khayyam, Hamid

doi:10.1109/icaiet.2014.27

Cited by 5 publications

(5 citation statements)

References 19 publications

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where P , V , I , and φ are power (W), voltage (415 volts), current (A), and phase difference (120°), respectively. In order to estimate the energy consumption of electrical heater for air, Badii et al [ 37 ] explained the structural details of this electrical heater. The power was determined based on the difference between the oven and the ambient temperature.…”

Section: Resultsmentioning

confidence: 99%

Production of Low Cost Carbon-Fiber through Energy Optimization of Stabilization Process

et al. 2018

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To produce high quality and low cost carbon fiber-based composites, the optimization of the production process of carbon fiber and its properties is one of the main keys. The stabilization process is the most important step in carbon fiber production that consumes a large amount of energy and its optimization can reduce the cost to a large extent. In this study, two intelligent optimization techniques, namely Support Vector Regression (SVR) and Artificial Neural Network (ANN), were studied and compared, with a limited dataset obtained to predict physical property (density) of oxidative stabilized PAN fiber (OPF) in the second zone of a stabilization oven within a carbon fiber production line. The results were then used to optimize the energy consumption in the process. The case study can be beneficial to chemical industries involving carbon fiber manufacturing, for assessing and optimizing different stabilization process conditions at large.

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Section: Resultsmentioning

confidence: 99%

Production of Low Cost Carbon-Fiber through Energy Optimization of Stabilization Process

et al. 2018

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“…Recycling and exhaust fans, air electrical heater, drives 1,2 in the first oven (Fig. 3), and tow of PAN fiber [5], [6] consume energy. Based on Fig.…”

Section: Management Of Energy In Stabilization Processmentioning

confidence: 99%

“…Thermal stabilization process is the most non-linear, intricate, expensive and energy-intensive step in carbon fiber production process [1]- [4]. The complexity arises from the presence of multiple controlling parameters (at least 14 parameters) [5]. The significant parameters in the thermal…”

Section: Introductionmentioning

confidence: 99%

“…The associate editor coordinating the review of this manuscript and approving it for publication was Seyedali Mirjalili. stabilization process are Time, Temperature and Tension (TTT) [5], [6]. 63% of all consumption of energy in a pilotscale, single tow line and 18% of the price of PAN fiber manufacturing is related to oxidative stabilization step; therefore, a low-cost oxidative stabilization process brings benefits for carbon fiber manufacturers [7].…”

Section: Introductionmentioning

confidence: 99%

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Multi-Objective Optimization of Manufacturing Process in Carbon Fiber Industry Using Artificial Intelligence Techniques

et al. 2019

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Seeking high profitability by improving energy efficiency and production quality is the prime goal of manufacturing industries. However, achieving this aim involves the realization of several conflicting objectives. In carbon fiber industry, the stabilization process is the most vital step with high energy consumption. The aim of this study is to use intelligent modeling methods in the stabilization process to maximize energy efficiency while considering better production quality, avoiding defects, and not scarifying the prediction accuracy. To this aim, a modified DOE method was used to reduce the number of required experiments. The mechanical and physical properties were then modeled based on input-output data derived from the experiments. In this way, the SVR method is used to develop a set of mathematical models for mechanical and physical properties of the fibers. The skin-core defect and energy consumption were considered as objective functions within the given range of physical and mechanical properties of fibers. The state-of-the-art NSGA-II algorithm used to find the optimum Pareto front, including non-dominated solutions among these conflicting objective functions. The results showed that by using the integrated NSGA-II and technique for order preference by similarity to ideal solution (TOPSIS), the energy efficiency of the system was improved. Moreover, the discussions showed how similar hybrid algorithms with high accuracy can be used by other industries to reduce the overall energy consumptions.

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“…From an industrial perspective, recirculation air fan frequency is another parameter that plays a substantial role in the stabilization stage as it helps to precisely maintain the oven set temperatures by the recirculation of heated air at a targeted velocity. Also it provides a fresh mixture of air to fibers and helps to remove exothermic heat from the fibers through gentle filament shaking [16] (Figure 1). Not only does it help to control the process, it also contributes to the energy consumption, hence a deeper understanding of its influence on the resultant carbon fiber properties would be beneficial to identify ways to reduce the energy consumption in carbon fiber manufacturing.…”

Section: Introductionmentioning

confidence: 99%

A Pathway to Reduce Energy Consumption in the Thermal Stabilization Process of Carbon Fiber Production

et al. 2018

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Process parameters, especially in the thermal stabilization of polyacrylonitrile (PAN) fibers, play a critical role in controlling the cost and properties of the resultant carbon fibers. This study aimed to efficiently handle the energy expense areas during carbon fiber manufacturing without reducing the quality of carbon fibers. We introduced a new parameter (recirculation fan frequency) in the stabilization stage and studied its influence on the evolution of the structure and properties of fibers. Initially, the progress of the cyclization reaction in the fiber cross-sections with respect to fan frequencies (35, 45, and 60 Hz) during stabilization was analyzed using the Australian Synchrotron-high resolution infrared imaging technique. A parabolic trend in the evolution of cyclic structures was observed in the fiber cross-sections during the initial stages of stabilization; however, it was transformed to a uniform trend at the end of stabilization for all fan frequencies. Simultaneously, the microstructure and property variations at each stage of manufacturing were assessed. We identified nominal structural variations with respect to fan frequencies in the intermediate stages of thermal stabilization, which were reduced during the carbonization process. No statistically significant variations were observed between the tensile properties of fibers. These observations suggested that, when using a lower fan frequency (35 Hz), it was possible to manufacture carbon fibers with a similar performance to those produced using a higher fan frequency (60 Hz). As a result, this study provided an opportunity to reduce the energy consumption during carbon fiber manufacturing.

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Energy Saving in Electric Heater of Carbon Fiber Stabilization Oven

Cited by 5 publications

References 19 publications

Production of Low Cost Carbon-Fiber through Energy Optimization of Stabilization Process

Production of Low Cost Carbon-Fiber through Energy Optimization of Stabilization Process

Multi-Objective Optimization of Manufacturing Process in Carbon Fiber Industry Using Artificial Intelligence Techniques

A Pathway to Reduce Energy Consumption in the Thermal Stabilization Process of Carbon Fiber Production

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