Design of experiments application, concepts, examples: State of the art

Duraković, Benjamin

doi:10.21533/pen.v5i3.145

Cited by 204 publications

(178 citation statements)

References 8 publications

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“…To reduce the number and the scope of experiments and to discover the relationships between the factors affecting the drying process, the statistical Design of Experiments (DOE) method was applied [60]. The most significant factors influencing the drying process identified as controllable input factors were the drying time, solar radiation intensity, and slice thickness.…”

Section: Experimental Parametersmentioning

confidence: 99%

Indirect Convective Solar Drying Process of Pineapples as Part of Circular Economy Strategy

et al. 2019

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This study investigates the industrial-scale application of a simple convective solar drying process of pineapples as part of a circular economy strategy for developing countries. A renewable energy concept is presented, which follows the circular economy aims by effectively employing a simple system for biogas production and a two-stage drying system. Both these systems meet the requirements for implementation in the specific conditions of developing countries, of which Togo, where pineapple is a major crop, is taken as an example. With respect to earlier findings available in the literature, the paper focuses on the solar drying process, which is critical to the proposed strategy. A portable solar dryer working in indirect heating mode was built and later also modified to enhance its performance. Three main factors influencing the convective drying process, namely, drying time (270 min, 480 min), solar radiation intensity (650 W/m 2 , 1100 W/m 2 ), and slice thickness (6-8 mm, 12-14 mm), were considered. The statistical Design of Experiments (DOE) method was applied to reduce the number and scope of experiments. In the best case, the moisture content was reduced from 87.3 wt % in fresh samples to 29.4 wt % in dried samples, which did not meet the quality requirements for dried fruit. An additional conventional post-solar drying procedure would, therefore, still be necessary. Nonetheless, the results show that in the case of pineapple drying the consumption of fossil fuels can be decreased significantly if convective solar pre-drying is employed.Energies 2019, 12, 2841 2 of 18 the most common are dried fruit and juice, usually in organic quality, which are exported primarily to European countries. The processing itself takes place in various decentralized small-and medium-sized enterprises. As described in [3], a typical such enterprise processes 1-2 t/d of fresh fruit, while the resulting pineapple waste (peels, cores, stems, and crowns) is about 40% of this amount. Other sources give even higher figures up to 75% [4]. The waste, together with discarded fruits with high moisture content and various other farm production wastes (cow dung, etc.) can be efficiently utilized for energy recovery via biogas production, and the resulting sludge can be used as fertilizer. While sophisticated biogas production technologies are employed in the developed countries, the technologies in developing countries must be tailored to the local conditions. Both the adaptation of European biogas production technologies to the specific requirements of pineapple waste processing in Togo and the corresponding experimental results were discussed by the authors of the present paper in [3]. Key Role of the Drying ProcessDrying-that is, a continuous or intermittent process associated with heat and mass transfer-significantly influences the shelf life, appearance, composition, taste, shape, structure, and other characteristics of the product. With respect to the fact that this process is probably the most energy-intensive one in the food pr...

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Section: Experimental Parametersmentioning

confidence: 99%

Indirect Convective Solar Drying Process of Pineapples as Part of Circular Economy Strategy

et al. 2019

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“…Design of Experiments (DOE) is statistical tool deployed in various types of system, process and product design, development and optimization. It is multipurpose tool that can be used in various situations such as design for comparisons, variable screening, transfer function [30,31] Design of Experiments (DOE) mathematical methodology used for planning and conducting experiments as well as analyzing and interpreting data obtained from the experiments. It is a branch of applied statistics that is used for conducting scientific studies of a system, process or product in which input variables (Xs) were manipulated to investigate its effects on measured response variable (Y).…”

Section: Optimization Methodologymentioning

confidence: 99%

Flux switching permanent magnet generator design and optimization using response surface methodology

Soleimani¹,

Ejlali²,

Moradkhani³

2019

PEN

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During last two decades, renewable energy sources have become crucial due to the traditional energy Therefore the usage of wind energy sources has been increased. [1] Several wind turbine concepts have been proposed. There are three major topologies of wind turbine systems: fixed-speed wind generators with multi multi-stage gearbox) and direct-drive wind generators. [2,3] Because of several advantages such as removal the gearbox, drive simplification, longevity, high reliability, weight reduction, maintenance cost reduction, high the drive train, simplified SCADA structure and better utilization of the available wind power, direct drive variable speed structures in wind power turbines are in attention. [3,4] Periodicals of Engineering and Natural Sciences http://pen.ius.edu.ba

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“…In addition, more tests with new datasets and the effect of cache memories (e.g., [58][59][60][61][62]) in parallel processing environment (e.g., [63]) are left as future works. Nowadays, the mathematical methodology namely DOE (design of experiments) is used extensively for planning-conducting experiments, analyzing, and interpreting data [64][65][66]. The possibility of usage DOE would be investigated in the long run.…”

Section: E Future Workmentioning

confidence: 99%

Untitled

2019

IJCSE

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Laser scanners have a lot of advantages over conventional video cameras. Data processing in laser scanner system becomes faster and easier because there is no need to record real world videos. Besides, the problem of private life conservation is taken away. This paper proposes an approach to track objects from laser scanned dataset. Data points collected by each scan of laser scanners are considered as video frame. Support vector machine (SVM) along with Hungarian algorithm and Kalman filter are used to obtain trajectories of objects from the laser scanned dataset. Experimental results on the same laser scanned datasetshow that the method of SVM with Hungarian algorithm and Kalman filter performs better than that of its alternative having various thresholds with Hungarian algorithm and Kalman filter.

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Design of experiments application, concepts, examples: State of the art

Cited by 204 publications

References 8 publications

Indirect Convective Solar Drying Process of Pineapples as Part of Circular Economy Strategy

Indirect Convective Solar Drying Process of Pineapples as Part of Circular Economy Strategy

Flux switching permanent magnet generator design and optimization using response surface methodology

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