eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
394
404
73132
Seismic Retrofitting RC Structures with Precast Prestressed Concrete Braces- ABAQUS FEA Modeling
F Nateghi A.
nateghi@iiees.ac.ir
1
M Vatandoost
mohsen.vatandoost@gmail.com
2
Department of Structure, IIEES, Tehran, Iran
Structure Engineer, Islamic Azad University, Structure, Tehran, Iran
Precast prestreesed concrete braces are a new method for seismic strength of Concrete Structures which has the following benefits: a) no wet concrete work in construction site b) No bolt or anchorage to the existing frame c) easy to apply d) short construction period e) low construction cost, to evaluate seismic performance of strengthened structure a model consist of existing frame and concrete braces were created using ABAQUS (nonlinear-finite element) software.Comparison existing and strengthened frame showed that braces are effective in lateral drift decreasing.Study concrete compressive strength on seismic behavior of brace showed that when compression strength of brace is lower than existing frame, retrofitting system has low stiffness and wasn’t effective in reducing lateral drift, but in specimen with compressive strength ratio (brace to frame) two times or more, braces showed high strength and stiffness.
https://www.ije.ir/article_73132_c376355e3a0d3d29cdf6e1028a321619.pdf
Key words Seismic Retrofitting
Seismic Strength
Concrete Braces
Precast concrete
Prestressed Concrete
Reinforced Concrete Structure
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
405
414
73133
Distributed Generation Expansion Planning Considering Load Growth Uncertainty: A Novel Multi-Period Stochastic Model
J Hosseini mola
javad_hoseini66@yahoo.com
1
T Barforoshi
barforoshi@nit.ac.ir
2
J Adabi Firouzjaee
j.adabi@nit.ac.ir
3
HV Substations Research Group, Department of Electrical and Computer Engineering, Babol Noshirvani University of Technology, Babol, Iran
HV Substations Research Group, Department of Electrical and Computer Engineering, Babol Noshirvani University of Technology, Babol, Iran
HV Substations Research Group, Department of Electrical and Computer Engineering, Babol Noshirvani University of Technology, Babol, Iran
Abstract – Distributed generation (DG) technology is known as an efficient solution for applying in distribution system planning (DSP) problems. Load growth uncertainty associated with distribution network is a significant source of uncertainty which highly affects optimal management of DGs. In order to handle this problem, a novel model is proposed in this paper based on DG solution, considering load uncertainty. This model is designed to minimize network costs including operation and losses. Genetic algorithm is used with the purpose of finding the optimal places, sizes as well as times for DGs. Load uncertainty is also modeled through Markov tree. To illustrate the effectiveness of the proposed model, it is tested in different scenarios considering the effects of the purchased power price, DG penetration factor and DG operation intervals. These scenarios are conducted in two different phases, with and without uncertainty and the results are then compared and discussed. Moreover, by considering load uncertainty in planning, planning models would be robust against network future load variations.
https://www.ije.ir/article_73133_17023d6d95774deca833ecc5e4980943.pdf
distributed generation (DG)
Distribution System Planning (DSP)
Load Growth
Genetic Algorithm
Markov Tree
Uncertainty
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
415
421
73134
Two Novel D-Flip Flops with Level Triggered Reset in Quantum Dot Cellular Automata Technology
S Zoka
saeidzoka@gmail.com
1
M Gholami
m.gholami@umz.ac.ir
2
Department of Electrical and Computer Engineering, University College of Rouzbahan, Sari, Iran.
Department of Engineering and Technology, University of Mazandaran, Babolsar, Iran
Quantum dot cellular automata (QCA) introduces a pioneer technology in nano scale computer architectures. Employing this technology is one of the solutions to decrease the size of circuits and reducing power dissipation. In this paper, two new optimized FlipFlops with reset input are proposed in quantum dot cellular automata technology. In addition, comparison with related works is performed.The reset pin in the proposed circuits is level triggered. Simulation results demonstrate that the both proposed desgins have efficient structures in terms of area, delay and complexity. The proposed structures are simulated using the QCADesigner and the validity of them has been proved. Simulations of the first proposed level triggered reset D-Flip Flop show that this circuit has 82 quantum cells and needs only two clock cycle for valid operation. In addition the second proposed architecture for level triggered reset D-Flip Flop has only 85 quantum cells and it needs only one clock cycle for proper operation.
https://www.ije.ir/article_73134_831f822bbeeaf63294b50049835be885.pdf
Quantum Cellular Automata
D flip
flop
level triggered
QCADesigner
Clocking zones
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
422
431
73135
The Integrated Supply Chain of After-sales Services Model: A Multi-objective Scatter Search Optimization Approach
a Yazdekhasti
yazdekhasti.amin@stu.yazd.ac.it
1
Y Zare Mehrjerdi
mehrjerdyazd@gmail.com
2
H Khademi Zare
3
G. A Raeisi Ardali
4
Department of Industrial Engineering, Faculty of Engineering, Yazd University, Yazd, Iran
Department of Industrial Engineering, Faculty of Engineering, Yazd University, Yazd, Iran
Department of Industrial Engineering, Faculty of Engineering, Yazd University, Yazd, Iran
Department of Industrial Engineering, Faculty of Engineering, Yazd University, Yazd, Iran
Abstract: In recent decades, high profits of extended warranty have caused that third-party firms consider it as a lucrative after-sales service. However, customers division in terms of risk aversion and effect of offering extended warranty on manufacturers’ basic warranty should be investigated through adjusting such services. Since risk-averse customers welcome extended warranty, while the customers without taking on risk may remain at the level of basic warranty. In this paper, a multi-objective integer nonlinear programming model is presented for integrating the supply chain of after-sales services. In the suggested model, firstly strategies used by the manufacturers in the basic warranty period and the third party’s policy during the extended warranty period, including the development of a new imperfect maintenance approach, are regulated. Then, the effects of these strategies on the desirability of customers with different levels of risk-taking are analyzed. To optimize the model, the scatter search based approach was introduced for extracting set of non-dominated solutions. The results indicated that increasing level of customers’ risk-taking convinces manufacturers to diminish the basic warranty period and the third party can apply less costly preventive maintenance. Key Words: Warranty, Extended warranty, After-sales services, Customers’ risk-taking, Pareto-set solutions, Multi-objective scatter search
https://www.ije.ir/article_73135_66a405dd920685e79bb3aebe89f30231.pdf
Key Words Warranty
Extended warranty
After
sales services
Customers’ risk
taking
Pareto
set solutions
multi
objective scatter search
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
432
439
73136
Bi-level Model for Reliability based Maintenance and Job Scheduling
R Jamshidi
jamshidi.rasul@aut.ac.ir
1
School of Engineering, Damghan University, Damghan, Iran
Many defects in manufacturing system are caused by human resources that show the significance of the human resources in manufacturing systems. Most manufacturers attempt to investigate the human resources in order to improve the work conditions and reduce the human error by providing a proper work-rest schedule. On the other hand, manufacturer deal with machine scheduling based on demand and work type. The mentioned scheduling would be effective if both are simultaneously implemented; then, we confront integrated human- machine systems which work with minimum cost, machine failure and human errors. Considering this fact, we propose a bi-level mixed integer nonlinear model to minimize the machine scheduling costs such as earliness-tardiness cost and interruption cost in the upper level and human error in lower level according to performance shaping factors (PSFs). Several numerical instances are implemented by the proposed model to show the model effectiveness to obtain the best work schedule for human resources and machines in manufacturing systems.
https://www.ije.ir/article_73136_470f38a1a9329eba366e9ea74f131be5.pdf
scheduling
Human error
Bi
Level
optimization
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
440
449
73137
An Integrated Closed-loop Supply Chain Configuration Model and Supplier Selection based on Offered Discount Policies
R Sadeghi Rad
reza.sadeghirad@modares.ac.ir
1
N Nahavandi
n_nahavandi@modares.ac.ir
2
A Husseinzadeh Kashan
a.kashan@modares.ac.ir
3
S.H Zegordi
zegordi@modares.ac.ir
4
Industrial and System Engineering Faculty, Tarbiat Modares University, Tehran, Iran
Industrial and System Engineering Faculty, Tarbiat Modares University, Tehran, Iran
Industrial and System Engineering Faculty, Tarbiat Modares University, Tehran, Iran
Industrial and System Engineering Faculty, Tarbiat Modares University, Tehran, Iran
In this paper, a mathematical programming model is presented for integrated problem of closed loop supply chain network design and supplier selection. The suppliers propose discount policy based on purchase amount and loyalty of buyers which are both taken from the elements of RFM (Recency, Frequency and Monetary) technique. The main objective of this paper which is formulated by a mixed-integer programming model is to minimize the total cost through determining location of facilities, production plan, inventory levels, flows between facilities, transportation type, purchasing amount and selecting best supplier based on a beneficial relationship. Sensitivity analysis is carried out to validate the model and examine the effects of considering discount according to purchase amount and loyalty on the supply chains costs and decisions. Computational results show the effectiveness and usefulness of the model.
https://www.ije.ir/article_73137_607ed83fb7ec0486d5156bd353e755c3.pdf
Supplier selection
Closed
loop Supply Chain Network
Loyalty
Discount
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
450
455
73138
Developing of Corrosion Resistance Nano Copper Oxide Coating on Copper using Anodization in Oxalate solution
M. H Mahmood
mahmoodfattah@yahoo.com
1
S Suryanto
surya@iium.edu.my
2
M. H. F Al Hazza
muataz@iium.edu.my
3
F. I Haidera
fah1232003@yahoo.com
4
Department of Manufacturing and Material Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia
Department of Manufacturing and Material Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia
Department of Manufacturing and Material Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia
Department of Manufacturing and Material Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia
Copper alloys are widely used in the manufacturing of heat transfer applications, this due to their excellent heat transfer properties. Copper contamination is one of the serious industrial problems in the boiler feed water system. This contamination commonly resulted from copper corrosion reactions in boiler feed water environment. The best way to reduce the copper contamination is by improving copper corrosion resistance. This research studies the developing of copper corrosion resistant by using anodization technique. The anodization experiments are conducted in oxalate solutions of concentrations from 0.1 to 0.5 M, at a temperature range from 24 to 0 ο C and applied potential from 7.5 to 9 V. Anodized coating analyzed using Field emission scanning microscope, energy dispersive X-ray spectroscopy, and X-ray diffraction. Characterization results referred to the formation of copper oxide anodized coating with grain size range from 25 to 68 nm. The corrosion resistance of the anodized copper samples carried out in simulated boiler feed water. Results show that the corrosion resistance of the anodized samples was enhanced. The corrosion protection efficiencies for the anodized coating increased 86.2% and 74.5% in testing solutions contains 3.5% NaCl, and 2 mg/l NH3, respectively.
https://www.ije.ir/article_73138_91bee1d5d1765bcab3dd72debebe9a85.pdf
Copper corrosion
Copper oxide
Anodization technique
Corrosion protection
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
456
463
73139
Study of Stone-wales Defect on Elastic Properties of Single-layer Graphene Sheets by an Atomistic based Finite Element Model
S Safarian
safarian.sobhan@gmail.com
1
M Tahani
mtahani@um.ac.ir
2
Department of Mechanical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
Department of Mechanical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
In this paper, an atomistic based finite element model is developed to investigate the influence of topological defects on mechanical properties of graphene. The general in-plane stiffness matrix of the hexagonal network structure of graphene is found. Effective elastic modulus of a carbon ring is determined from the equivalence of molecular potential energy related to stretch and angular deformation. A hexagonal carbon ring as a unit cell of graphene sheets is modeled by four-node elements and by applying three-node triangular elements, Stone-Wales (SW) defect as an important topological defect which leads to the formation of two heptagons and pentagons is modeled. In this method, both pristine structure of graphene and graphene with SW defect are considered and to get more real structure, an atomistic model of a small part of graphite sheet around the defect site, is modeled in Gaussian software and new arrangement around SW defect are obtained by minimizing its energy. Young’s modulus, shear modulus and Poisson’s ratio of the pristine single-layered graphene sheet (SLGS) and the effect of topological defects on the elastic properties of SLGS is examined. The numerical results from this new model show good agreement with data available in the literature.
https://www.ije.ir/article_73139_eb38771225451a16b6d50f4196955d6a.pdf
Graphene sheet
Defects
Atomistic model
Finite element method
Elastic properties
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
464
472
73140
Modelling and Optimisation of Coconut Shell Drying and Carbonisation Using Multi-response Taguchi Method with Multi-response Signal-to-noise Procedure
Musabbikhah Musabbikhah
moesika12@gmail.com
1
H Saptoadi
harwins@ugm.ac.id
2
S Subarmono
subarmono_sbr@yahoo.com
3
M Arif Wibisono
arbisonet@ugm.ac.id
4
Department of Mechanical and Industrial Engineering, Universitas Gadjah Mada, Jl. Grafika 2, Yogyakarta, Indonesia
Department of Mechanical and Industrial Engineering, Universitas Gadjah Mada, Jl. Grafika 2, Yogyakarta, Indonesia
Department of Mechanical and Industrial Engineering, Universitas Gadjah Mada, Jl. Grafika 2, Yogyakarta, Indonesia
Department of Mechanical and Industrial Engineering, Universitas Gadjah Mada, Jl. Grafika 2, Yogyakarta, Indonesia
The main purpose of this work is to optimize the biomass drying and carbonization process in terms of both proximate analysis and biomass calorific value, simultaneously. The biomass material used in the study is coconut shells. The independent variables are the drying temperature, the drying time, the carbonization temperature and the carbonization holding time. The dependent variables are proximate analysis and calorific value. The primary methods used to gain the expected result are Taguchi and multi-response signal-to-noise (MRSN) procedure. Simultaneous optimization by using MRSN generate a value of 2.48 and the result corresponds to a drying temperature of 100 °C, a drying time of 24 h, carbonization temperature of 650 °C, and carbonization time of 120 mins. These results are best achieved by using configuration A1B3C3D3. The optimal expected values obtained in this study are maximum calorific values and fixed carbon of 7744 cal/g and 92.934%, respectively, and minimum moisture, volatile matter, and ash content of 0.354%, 2.318%, and 1.437%, respectively. All indicators are satisfied since the resulting model is deemed to be valid and feasible. The novelty of this work is the simultaneous parameter optimization of the five response variables, which have different quality characteristics into a single best parameter. هدف اصلی از این کار این است برای بهینه سازی خشک کردن زیست توده و فرایند کربن از نظر هر دو آنالیز تقریبی و ارزش زیست توده گرمایی، به طور همزمان. مواد زیست توده مورد استفاده در مطالعه پوسته نارگیل است. متغیرهای مستقل هستند که درجه حرارت خشک کردن، زمان خشک شدن، درجه حرارت کربن و کربنی برگزاری زمانی. متغیرهای وابسته هستند آنالیز تقریبی و ارزش گرمایی. روش اصلی استفاده می شود برای به دست آوردن نتیجه مورد انتظار هستند تاگوچی و چند پاسخ سیگنال به نویز (MRSN) روش. بهینه سازی به طور همزمان با استفاده از MRSN تولید یک ارزش 2.48 و نتیجه مربوط به درجه حرارت خشک کردن از 100 درجه سانتیگراد، زمان خشک کردن 24 ساعت، درجه حرارت کربناتی در 650 درجه سانتیگراد و زمان کربناتی در 120 دقیقه. این نتایج با استفاده از بهترین A1B3C3D3 پیکربندی به دست آورد. ارزش مطلوب به دست آمده در این مطالعه مقادیر حداکثر گرمایی و کربن ثابت 7744 کال / g و 92.934٪، به ترتیب، و حداقل رطوبت، مواد فرار، و خاکستر 0.354٪، 2.318٪ و 1.437 درصد، به ترتیب می باشد. تمام شاخص راضی از نتیجه مدل معتبر و عملی محسوب می شود. به تازگی از این کار بهینه سازی پارامتر همزمان از پنج متغیر پاسخ، که دارای ویژگی های با کیفیت مختلف را به یک بهترین پارامتر است.
https://www.ije.ir/article_73140_52ef67350f1eeed15e27ce45aaf0f249.pdf
carbonization
Drying
coconut shell
Multiple regression
Taguchi
MRSN
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
473
479
73141
The Analysis of Wheel Loader Diesel Engine Crankshaft Failure
K Aliakbari
karimaliakbari@yahoo.com
1
N Safarzadeh
naghi.safarzadeh@gmail.com
2
S. S Mortazavi
ssaaeedd.1992@gmail.com
3
Department of Mechanical Engineering, Faculty of Montazeri, Khorasan Razavi Branch, Technical and Vocational University (TVU), Mashhad, Iran.
aculty of Engineering, Islamic Azad University of Mashhad, Iran
aculty of Engineering, Islamic Azad University of Mashhad, Iran
The main purpose of this study is to review the cause for the crankshaft failure of six-cylinder diesel engine of a wheel loader after passing a short period of time. The failure had occurred after 4800 hours of in-service in the fifth crankpin of the crankshaft. Hardness and tensile tests were carried out to study their mechanical properties. Spectrophotometer machine was used to examine the chemical composition of the crankshaft material. To examine the material microstructure, its defects and the morphology of fracture surface, optical microscopes (OM) and scanning electronic microscopes (SEM) equipped with energy dispersive spectrometry (EDS) were used. The morphology of fracture surface showed that the fracture is of the smooth type and has occurred due to the fatigue. Main origin of the fatigue cracks appeared on the surface of the crankpin might be created by the existence of oil impurities, the impurities on the surface of the crankpin, inappropriate machining on the surface of the crankpin or severe wear and pitting from insufficient lubricating.
https://www.ije.ir/article_73141_d9b9edffd213b5d3182599d14b5eccfa.pdf
Automotive engineering
Wheel loader
Crankshaft failure
Fatigue crack
Failure cause
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
480
486
73142
Parameters Identification of an Experimental Vision-based Target Tracker Robot Using Genetic Algorithm
M. H Sangdani
m.sangdani@sutech.ac.ir
1
A. R Tavakolpour-Saleh
tavakolpour@sutech.ac.ir
2
Department of Mechanical and Aerospace Engineering, Shiraz University of Technology, Shiraz, Iran
Mechanical and Aerospace Engineering, Shiraz University of Technology
In this paper, the uncertain dynamic parameters of an experimental target tracker robot are identified through the application of genetic algorithm. The considered serial robot is a two-degree-of-freedom dynamic system with two revolute joints in which damping coefficients and inertia terms are uncertain. First, dynamic equations governing the robot system are extracted and then, simulated numerically. Next, an open-loop experiment with finite duration step inputs is implemented on the experimental setup to collect practical output data. Accordingly, a desired objective function is defined as the sum of discrepancy between the experimental and simulated output data. Subsequently, a genetic algorithm is employed to explore the best damping coefficients and inertia terms of the simulation scheme so as to minimize the presented cost function and taking into account the same input data for both simulation and experiment. Finally, the simulated output data based on the identified robot parameters reveal an acceptable agreement with the measured outputs through which validity of the identification scheme is affirmed.
https://www.ije.ir/article_73142_438d452d3b263aa6d017470fae3b9a60.pdf
Parameter identification
target tracker robot
Genetic Algorithm
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
487
494
73143
A 3D Numerical and Empirical Study on the Effects of Injection Pressure and Temperature on the Quality of Produced Mold
S Rahimi
siavash.rahimi69@gmail.com
1
Z Baniamerian
rr_amerian@yahoo.com
2
S Mazdak
si.mazdak@gmail.com
3
E Sharifi Tashnizi
sharifi.te@gmail.com
4
Department of Mechanical Engineering, Tafresh University, Tafresh, Iran
Department of Mechanical Engineering, Tafresh University, Tafresh, Iran
Department of Mechanical Engineering, Tafresh University, Tafresh, Iran
Department of Mechanical Engineering, Tafresh University, Tafresh, Iran
Plastic injection is a method in which, with using an extruder in granules, plastic is injected in a hole with high pressure. Because of meeting the two flow fronts in this process welding line will be made. Along the welding line the strength of produced part is low; therefore the position of welding line and its clarity are very important. In this paper, analyzes have been done with Fluent and Mold Flow softwares. In addition, verification of these analyzes have been done with practical experiments in order to study the effect of injection pressure and temperature on the welding line and its clarity. The materials used in these experiments are ABS and PP. Results show that applying different injection pressure and temperatures affects the strength of the produced part.
https://www.ije.ir/article_73143_2b82c4629c585426d5455f46be983ce4.pdf
Injection Molding
Injection pressure
Injection temperature
Tensile test
Weld line
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
495
503
73144
Surface Energy and Elastic Medium Effects on Torsional Vibrational Behavior of Embedded Nanorods
R Nazemnezhad
rnazemnezhad@du.ac.ir
1
School of Engineering, Damghan University, Damghan, Iran
In this paper surface energy and elastic medium effects on torsional vibrational behavior of nanorods are studied. The surface elasticity theory is used to consider the surface energy effects and the elastic medium is modeled as torsional springs attached to the nanorod. At the next step, Hamilton’s principle is utilized to derive governing equations and boundary conditions. Then, with the aid of an analytical method, natural frequencies are obtained and effects of various parameters on torsional frequencies are studied in details. It is concluded from the present study that the surface energy can make nanorods unstable depending on the nanorod dimension and frequency number. Results of the present study can be useful in design of nanoelectromechanical systems like drive shafts.
https://www.ije.ir/article_73144_98af546c13b16c8a891ed8b74f968caa.pdf
surface energy
Elastic medium
Torsional vibration
nanorod
Natural frequency
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
504
510
73145
Tensile and Morphological Properties of Microcellular Polymeric Nanocomposite Foams Reinforced with Multi-walled Carbon Nanotubes
T Azdast
t.azdast@urmia.ac.ir
1
R Hasanzadeh
re.hasanzadeh@urmia.ac.ir
2
Mechanical Engineering Department, Urmia University, Urmia, Iran
Young Researchers and Elite Club, Urmia Branch, Islamic Azad University, Urmia, Iran
Polyamide 6 (PA6) is used in many applications due to its advantages and improving its properties seems essential. For this purpose in the present study, PA6 was melt compounded with various multi-walled carbon nanotubes (MWCNTs) contents and then was foamed using Azodi carbon amide (ACA) as blowing agent under different injection molding conditions. Morphological properties were investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM) tests. The results demonstrated that an appropriate distribution of MWCNTs was observed in polymeric matrix and 0.85, 0.94 and 1 Å increase in distance between walls of CNTs was observed. Also, the SEM results illustrated that microcellular structure was achieved in all samples. The results illuminated that mean cell size was improved about 34% in samples containing 1 wt% MWCNT. The tensile properties of samples were investigated and the effect of MWCNTs content was studied on specific tensile and yield strengths. The results indicated that specific tensile strength and yield strength were significantly increased almost 164% and 147% by addition of 1 wt% of MWCNTs, respectively.
https://www.ije.ir/article_73145_27449f66c003f285b506e7d8e8563e98.pdf
Foam
Mechanical properties
Nanocomposite
Polymer
XRD
eng
Materials and Energy Research Center
International Journal of Engineering
1025-2495
1735-9244
2018-03-01
31
3
511
515
73146
Performance Evaluation of Oily Waste Treatment Ways (TECHNICAL NOTE)
A Lekomtsev
alex.lekomtsev@mail.ru
1
K Vyatkin
mr.viatkin@mail.ru
2
D Martyushev
martyushevd@inbox.ru
3
Research and Education Center of Geology and Development of Oil and Gas Fields, Perm National Research Polytechnic University, Russia
Research and Education Center of Geology and Development of Oil and Gas Fields, Perm National Research Polytechnic University, Russia
Research and Education Center of Geology and Development of Oil and Gas Fields, Perm National Research Polytechnic University, Russia
On the basis of key ways of oily waste treatment in Russia which has been described in the article and on the example of oil-contaminated soil (OCS) treatment there can be considered two most widespread technologies: bioremediation and thermal recovery. We developed the process flow sheet of the equipment (UT-2S) for industrial oily wastes treatment on the basis of high temperature air tight decomposition of oily waste. We have also worked out criteria of prime cost, OCS treatment period as well as OCS purification efficiency and industrial emission of harmful substances of each technology of oily waste treatment with the aim of its comparison. The analysis of the results received during this work makes possible to find out advantages and disadvantages of OCS recycling technologies and to evaluate efficiency of each technology.
https://www.ije.ir/article_73146_23a2f37a0df1935e05d73b7248d3b22f.pdf
oily waste
Oil
contaminated soil treatment
Bioremediation
thermal decomposition of soil