Assessment of converting approach to efficient design of micro-turboprop engines

Golchin, Hamed; Ommi, Fathollah; Saboohi, Zoheir

doi:10.1016/j.cja.2019.08.008

Cited by 8 publications

(3 citation statements)

References 25 publications

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“…Examples of this issue include the emissions formation and combustion stability that mostly controlled by chemistry (Andreini and Facchini, 2004). New constraints on pollutant emissions have forced designers to use computational models to reduce the cost of experimental tests (GOLCHIN et al, 2019). CRN is one of the most effective and low-cost computational approaches for predicting combustion with detailed chemistry (Saboohi et al, 2016).…”

Section: Practical Aspectsmentioning

confidence: 99%

A review on the applications of the chemical reactor network approach on the prediction of pollutant emissions

Khodayari

Ommi

Saboohi

2020

AEAT

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Purpose The purpose of this paper is to review the applications of the chemical reactor network (CRN) approach for modeling the combustion in gas turbine combustors and classify the CRN construction methods that have been frequently used by researchers. Design/methodology/approach This paper initiates with introducing the CRN approach as a practical tool for precisely predicting the species concentrations in the combustion process with lower computational costs. The structure of the CRN and its elements as the ideal reactors are reviewed in recent studies. Flow field modeling has been identified as the most important input for constructing the CRNs; thus, the flow field modeling methods have been extensively reviewed in previous studies. Network approach, component modeling approach and computational fluid dynamics (CFD), as the main flow field modeling methods, are investigated with a focus on the CRN applications. Then, the CRN construction approaches are reviewed and categorized based on extracting the flow field required data. Finally, the most used kinetics and CRN solvers are reviewed and reported in this paper. Findings It is concluded that the CRN approach can be a useful tool in the entire process of combustion chamber design. One-dimensional and quasi-dimensional methods of flow field modeling are used in the construction of the simple CRNs without detailed geometry data. This approach requires fewer requirements and is used in the initial combustor designing process. In recent years, using the CFD approach in the construction of CRNs has been increased. The flow field results of the CFD codes processed to create the homogeneous regions based on construction criteria. Over the past years, several practical algorithms have been proposed to automatically extract reactor networks from CFD results. These algorithms have been developed to identify homogeneous regions with a high resolution based on the splitting criteria. Originality/value This paper reviews the various flow modeling methods used in the construction of the CRNs, along with an overview of the studies carried out in this field. Also, the usual approaches for creating a CRN and the most significant achievements in this field are addressed in detail.

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Section: Practical Aspectsmentioning

confidence: 99%

A review on the applications of the chemical reactor network approach on the prediction of pollutant emissions

Khodayari

Ommi

Saboohi

2020

AEAT

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“…Materials in the first category are characterized by excellent strength and high toughness, such as titanium alloys, hightemperature alloys, high-and ultrahigh-strength steels, and stainless steels [4][5][6][7][8]. These materials are used in aerospace parts or components operated under high stress or high temperature, including aeroengine blisks and turbine blades [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Nontraditional energy-assisted mechanical machining of difficult-to-cut materials and components in aerospace community: a comparative analysis

Zhao,

Ding

et al. 2024

Int. J. Extrem. Manuf.

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Difficult-to-cut materials such as titanium alloys, high-temperature alloys, metal/ceramic/polymer-matrix composites, hard and brittle materials, as well as geometrically complex components such as thin-walled structures, micro channels and complex surfaces, are widely used in aerospace community. Mechanical machining is the main material removal process and responsible for the vast majority of material removal for aerospace components. Nevertheless, it encounters many problems in terms of severe and rapid tool wear, low machining efficiency, and deteriorated surface integrity. Nontraditional energy-assisted mechanical machining is a hybrid process in which nontraditional energies, e.g., vibration, laser, electric, etc., are applied to improve the machinability of local material and decrease burden of mechanical machining. It provides a feasible and promising way for improving machinability and surface quality, reducing process forces, and prolonging tool life, etc. However, systematic reviews of this technology are lacking with respect to the current research status and development direction. This paper reviews recent progress in nontraditional energy-assisted mechanical machining of difficult-to-cut materials and components in aerospace community. It focuses on the processing principles, material responses under nontraditional energy, resultant forces and temperatures, material removal mechanisms and applications of these processes including vibration-, laser-, electric-, magnetic-, chemical-, cryogenic cooling-, and hybrid nontraditional energies-assisted mechanical machining. Eventually, a comprehensive summary of the principles, advantages and limitations for each hybrid process is provided, and future perspectives on forward design, device development and sustainability of nontraditional energy-assisted mechanical machining processes are discussed.

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“…The use of fossil fuels for energy generation via thermal power plants has caused global warming, climate change, and the release of toxic gases. Thus, it is necessary to consider alternative solutions [1,2,3,4]. In this regards, the use of renewable energy is the major solution to protect the environment.…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of a tethered-glider for generating electrical-renewable energy using the pumping cycle method

2022

IJM

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The issue of energy generation from wind is considered one of the main ways to develop renewed energy in some areas worldwide. The important point in generating energy from wind is the permanent wind availability, which is called the existence of effective wind. According to studies, there is no effective wind at ground level in many areas of the world, while this wind is available at altitude. The Accessibility of wind in altitude has led to the development of various technologies in energy production from airborne systems. In this research, airborne wind energy systems technologies have been investigated, and a tethered-glider was designed and analyzed using analytical methods for energy generation at a 200-meter altitude. The main factor in designing a glider is the optimal ratio of lift to drag coefficient; For calculating lift to drag coefficient, the vortex lattice method (VLC) is used in this paper. The results illustrate that a glider with a wingspan of 5.2 meters can produce a maximum of 10 kilowatts of energy over one cycle. Increasing this ratio can increase energy production efficiency.

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Assessment of converting approach to efficient design of micro-turboprop engines

Cited by 8 publications

References 25 publications

A review on the applications of the chemical reactor network approach on the prediction of pollutant emissions

A review on the applications of the chemical reactor network approach on the prediction of pollutant emissions

Nontraditional energy-assisted mechanical machining of difficult-to-cut materials and components in aerospace community: a comparative analysis

Design and analysis of a tethered-glider for generating electrical-renewable energy using the pumping cycle method

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