scholarly journals Study of Influence the Fluidized Bed Apparatus Geometrical Characteristics on Drying Process Technological Parameters

2020 ◽  
Vol 131 (6) ◽  
pp. 50-53
Author(s):  
A. A. Shurak ◽  
◽  
A. A. Shagarova ◽  
L. M. Mansur ◽  
◽  
...  
Keyword(s):  
Energy Consumption ◽  
Fluidized Bed ◽  
Process Parameters ◽  
Energy Efficient ◽  
Drying Process ◽  
Technological Parameters ◽  
Microsoft Excel ◽  
Geometrical Characteristics ◽  
Reduced Height ◽  
New Energy

Studies on the influence the fluidized bed apparatus geometrical characteristics on the technological parameters of the drying process. Algorithm and program of calculating tabular processor Microsoft Excel has been developed. Modeling results in the form of graphical dependencies, characterizing the influence of ratio of apparatus for technological process parameters are presented. Trend of energy consumption with reduced height of the separation space apparatus that taken into account in the development of new energy-efficient designs of dryers is installed.

scholarly journals THE ADVANTAGE OF GENETIC ALGORITHM IN ENERGY-EFFICIENT SCHEDULING FOR HETEROGENEOUS CLOUD COMPUTING

2016 ◽  
Vol 4 (7) ◽  
pp. 1-9
Author(s):  
Hang Zhou ◽  
Samina Kausar ◽  
Ningning Dong
Keyword(s):  
Genetic Algorithm ◽  
Cloud Computing ◽  
Energy Consumption ◽  
Energy Efficient ◽  
Scheduling Problem ◽  
New Energy ◽  
Heavy Burden ◽  
Heterogeneous Cloud ◽  
Energy Efficient Scheduling ◽  
Computing Infrastructure

Nowadays Energy Consumption has been a heavy burden on the enterprise cloud computing infrastructure. This paper focuses on the hardware factors in energy consumption. Inspired by DVFS, it proposes a new energy-efficient (EE) model. This paper formulates the scheduling problem and genetic algorithm is applied to obtain higher efficiency value. Simulations are implemented to verify the advantage of genetic algorithm. In addition, the robustness of our strategy is validated by modifying the relevant parameters of the experiment.

ENERGY-EFFICIENT NODE SCHEDULING MODELS IN SENSOR NETWORKS WITH ADJUSTABLE RANGES

2005 ◽  
Vol 16 (01) ◽  
pp. 3-17 ◽  
Author(s):  
JIE WU ◽  
SHUHUI YANG
Keyword(s):  
Energy Consumption ◽  
Sensor Networks ◽  
Energy Efficient ◽  
Life Time ◽  
High Ratio ◽  
Sensor Nodes ◽  
Sensing Range ◽  
Node Scheduling ◽  
New Energy ◽  
Scheduling Models

In this paper, we study the problem of maintaining sensing coverage by keeping a small number of active sensor nodes and using a small amount of energy consumption in wireless sensor networks. This paper extends a result from 22 where only uniform sensing range among all sensors is used. We adopt an approach that allows non-uniform sensing ranges for different sensors. As opposed to the uniform sensing range node scheduling model in 22, two new energy-efficient models with different sensing ranges are proposed. Our objective is to minimize the overlapped sensing area of sensor nodes, thus to reduce the overall energy consumption by sensing and communication to prolong the whole network's life time, and at the same time to achieve the high ratio of coverage. Extensive simulation is conducted to verify the effectiveness of our node scheduling models.

scholarly journals Energy-Efficient Unequal Clustering Routing Algorithm for WSNs

2019 ◽  
Vol 8 (3) ◽  
pp. 5540-5548
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Sensor Node ◽  
Routing Algorithm ◽  
Base Station ◽  
Sensor Nodes ◽  
Energy Balancing ◽  
Unequal Clustering ◽  
Network Nodes ◽  
New Energy

Wireless sensor networks(WSNs) are used to monitor the environment where the networks are deployed. The Lifetime of WSNs can be increased by energy-efficient or energy balancing algorithms. Balanced energy consumption among all nodes is the main issue. In this paper, a new energy-efficient unequal clustering routing protocol (EEUCR) has been presented. In this protocol, the area of the network is divided into the number of rings of unequal size and each ring is further divided into a number of clusters. Rings nearer to the base station(BS) have a smaller area and the area of rings keeps on increasing as the distance from BS increases. This helps to balance the energy consumption among the sensor nodes. The nodes with heterogeneous energy are deployed in the network. Nodes nearer to the base station have higher energy as compared to farther nodes. Static clustering is used but cluster heads(CHs) are not fixed and are elected on the basis of the remaining energy of the sensor node. Simulation results are compared with existing protocols and show improvement in energy consumption, which, in turn, increases the network lifetime of WSN and also balance the energy consumption of sensor node

scholarly journals RESEARCH RESULTS OF THE DEVICE FOR DRYING AGRICULTURAL CROPS

2020 ◽  
Author(s):  
О.Н. Кухарев ◽  
И.Н. Сёмов ◽  
Н.К. Тимергазин ◽  
В.С. Оськин
Keyword(s):  
Experimental Studies ◽  
Optimal Parameters ◽  
Drying Process ◽  
Technological Parameters ◽  
Microsoft Excel ◽  
Research Results ◽  
Industry Standards ◽  
Private Research ◽  
Fluidized Bed Drying ◽  
Almost All

Хозяйства и операторы розничной сети не всегда могут сохранить полученный урожай в связи с необходимостью постройки овощехранилищ и сложности с соблюдением технологии хранения. В этих условиях выходом из сложившегося положения является сушка овощей. Применение сушки позволяет сохранить все вкусовые качества и почти все витамины. В этих условиях в ФГБОУ ВО «Пензенский ГАУ» разработан опытный образец устройства для сушки сельскохозяйственных культур, позволяющего проводить сушку в кипящем слое. Однако, необходимо провести исследования для совершенствования процесса сушки овощей пневмомеханической сушилкой с обоснованием её конструктивных и технологических параметров. В работе использовались экспериментальные методы: моделирование, наблюдение, эксперимент. Экспериментальные исследования проводились в лабораторных условиях на основе общепринятых методик в соответствии с действующими отраслевыми стандартами, а также разработанных частных методик исследований. Обработка результатов исследований проводилась на ПЭВМ с использованием стандартных компьютерных программ Microsoft Excel, Statistica, КОМПАС-3D. В результате была получена модель процесса сушки и определены оптимальные параметры предлагаемого устройства. Farms and retailers are not always able to preserve the harvest due to the need to build vegetable stores and the difficulty in observing storage technology. Under these conditions, the way out of this situation is the drying of vegetables. The use of drying allows saving all the taste and almost all the vitamins. Under these conditions, Penza State Agrarian University has developed a prototype device for drying crops, allowing for fluidized-bed drying. However, it is necessary to conduct research to improve the drying process of vegetables with a pneumatic-mechanical dryer with justification for its design and technological parameters. The experimental methods were used in the work: modeling, observation, experiment. Experimental studies were carried out in laboratory conditions on the basis of generally accepted methods in accordance with current industry standards, as well as developed private research methods. Processing of the research results was carried out on a PC using standard computer programs Microsoft Excel, Statistica, KOMPAS-3D. As a result, a model of the drying process was obtained and the optimal parameters of the proposed device were determined.

scholarly journals System modelling of non-stationary drying processes

2019 ◽  
pp. 93-106
Author(s):  
Sergey Antipov ◽  
Andrey Klyuchnikov ◽  
Viktor Panfilov
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Fluidized Bed ◽  
Practical Importance ◽  
Convective Drying ◽  
System Modelling ◽  
Drying Process ◽  
Technological Parameters ◽  
Batch Mode ◽  
Integrated Research

The kinetics of the drying process in continuous drum dryers differs from the drying of single objects in a batch mode. Drying process is affected by too many factors; hence, it is practically impossible to obtain an analyt- ical solution from the initial equations of heat and mass transfer, since the duration of drying depends on the opera- ting parameters. Therefore, it is of high theoretical and practical importance to create a highly efficient rotary drum dryer. Its design should be based on an integrated research of non-stationary processes of heat and mass transfer, hydrodynamics of fluidized beds, and drying kinetics in the convective heat supply. The experiment described in the present paper featured sunflower seeds. It was based on a systematic approach to modelling rotary convective drying processes. The approach allowed the authors to link together separate idealized models. Each model characterized a process of heat and mass transfer in a fluidized bed of wet solids that moved on a cylindrical surface. The experiment provided the following theoretical results: 1) a multimodel system for the continuous drying process of bulky mate- rials in a fluidized bed; 2) an effective coefficient of continuous drying, based on the mechanics of the fluidized bed and its continuous dehydration. The multimodel system makes it possible to optimize the drying process according to its material, heat-exchanger, and technological parameters, as well as to the technical and economic characteristics of the dryer.

scholarly journals Рroduction of light fillers on the basis of technogenic raw materials

2021 ◽  
Vol 4 (1) ◽  
pp. 131-137
Author(s):  
D. P. Kindzera ◽  
◽  
V. M. Atamaniuk ◽  
Z. Ya. Gnativ ◽  
I. M. Mitin ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Raw Materials ◽  
Thermal Power ◽  
Drying Process ◽  
Technological Parameters ◽  
Transfer Coefficients ◽  
Filtration Method ◽  
Heat Transfer Coefficients ◽  
Velocity Effect ◽  
Technogenic Raw Materials

In Ukraine, along with the growing demand for tonnage production of light fillers, the need for raw materials is growing, considering that most of the range of light fillers is made from natural raw materials. Thus, a promising direction of utilization of TPP slags and coal concentrate obtained by enrichment of primary coal sludge is there involvement to the production process after preliminary drying. Drying of the thermal power plant slag and the coal concentrate, which are hydraulic mixtures, by the filtration method will reduce energy consumption due to the displacement and removal of significant amount of moisture by the moving thermal agent due to the pressure drop. The results of studies of the thermal agent velocity effect on the drying process duration of TPP slag and coal concentrate, as well as the obtained values of heat transfer coefficients at different velocities of the thermal agent for TPP slag α = 40 ÷ 112 and coal concentrate α = 92,5 ÷ 294 will allow to calculate energy consumption and scientifically substantiate the optimal technological parameters for intensification of the drying process of the charge components for porous fillers production.

Architecture as a strategy for reduced energy consumption? An in-depth analysis of residential practices’ influence on the energy performance of passive houses

2014 ◽  
Vol 3 (3) ◽  
pp. 192-206 ◽  
Author(s):  
Solvår Wågø ◽  
Thomas Berker
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Energy Savings ◽  
Energy Performance ◽  
Content Type ◽  
Depth Analysis ◽  
New Energy ◽  
Passive Houses ◽  
The One ◽  
Actual Energy Consumption

Purpose – The purpose of this paper is to discuss how architectural solutions may influence residential practice and energy consumption. Design/methodology/approach – The paper is part of a larger study based on qualitative investigations of six energy-efficient housing projects in Norway. Here, the authors examine one of these projects, Løvåshagen in Bergen, the first Norwegian passive house flat building. Based on a combination of 14 interviews with household members and energy consumption data for all flats, the authors show how residential practices influence energy consumption. In the discussion and conclusion, the authors focus on the role of the architecture in these practices. Findings – On the one hand, Løvåshagen reflects a mainstreaming approach to sustainable building, attracting a wide array of different occupants. On the other hand, the specific add-ons that are intended to make the buildings energy efficient require new definitions of comfort and new skills to achieve the promised energy savings. This combination can explain why Løvåshagen, after four years of occupation, has a large variation in actual energy consumption. Practical implications – In designing new energy-efficient housing, greater attention should be paid to the level of end-user control and adaptability, the level of system complexity, and the need for adequate information. An alternative to the mainstreaming approach would be to actively use architecture to influence residential practices towards reduced energy consumption. Originality/value – The use of qualitative methods to analyse quantitative energy data is original and provides promising opportunities to understand the significance of residential practices regarding actual energy consumption.

Process analysis and optimization of open-width fabric continuous drying based on numerical simulation

2020 ◽  
pp. 004051752095523
Author(s):  
Shuangqing Wang ◽  
Huile Zhang ◽  
Huimin Chen ◽  
Yi Zhong ◽  
Xiaoli Yue
Keyword(s):  
Finite Element ◽  
Surface Temperature ◽  
Water Content ◽  
Process Parameters ◽  
Interaction Effect ◽  
Element Model ◽  
Numerical Results ◽  
Drying Rate ◽  
Drying Process ◽  
Technological Parameters

As an indispensable part of textile processing, the fabric drying process has a great impact on product quality and overall energy consumption. To reveal the characteristics of the continuous drying process of various fabrics and optimize process parameters for improving productivity and saving energy, a finite element model is built to simulate the continuous fabric drying process, and an optimization method is applied to optimize process parameters based on the model. Specifically, a finite element model is first built; the model can predict distribution of water content and surface temperature of three kinds of fabric in the continuous drying process under different process parameters. The model is then verified by experiments, and the experimental results agree well with the numerical results: The mean absolute errors of distribution of water content and surface temperature of fabrics are 4.22% and 2.15℃, respectively. The numerical results indicate that wind velocity, wind temperature, and fabric velocity have a significant influence on the drying rate and surface temperature of fabrics in the continuous drying process, which, however, are not affected obviously by initial water content. It is also found that under the same initial and technological conditions, the drying rate and surface temperature of fabrics in the continuous drying process are lower than those in the intermittent drying process. Second, the Taguchi method is applied to design continuous fabric drying schemes, considering the interaction effect of technological parameters on the drying process. The numerical model is then applied to simulate these schemes, and the TOPSIS method is applied to analyze and compare these numerical results. The optimal technological parameters are determined; the optimal parameters can help to save energy by about 27.8 % and enhance energy efficiency by about 16 % in the continuous drying process. It is worth noting that the interaction effect of fabric velocity and wind temperature on the continuous drying process is more significant than their independent effects.

Effect of apparent viscosity on fluidized bed drying process parameters of guava pulp

2007 ◽  
Vol 80 (4) ◽  
pp. 1096-1106 ◽  
Author(s):  
R.A.F. Cabral ◽  
J. Telis-Romero ◽  
V.R.N. Telis ◽  
A.L. Gabas ◽  
J.R.D. Finzer
Keyword(s):  
Fluidized Bed ◽  
Process Parameters ◽  
Apparent Viscosity ◽  
Drying Process ◽  
Fluidized Bed Drying

scholarly journals A New Energy-Efficient Coverage Control with Multinodes Redundancy Verification in Wireless Sensor Networks

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Zeyu Sun ◽  
Chuanfeng Li ◽  
Xiaofei Xing ◽  
Huihui Wang
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Sensor Nodes ◽  
Network Resources ◽  
Coverage Control ◽  
Redundant Data ◽  
New Energy ◽  
Proof Procedure ◽  
Monitoring Area

The target nodes are k-covered by the sensor nodes; there will be a lot of redundant data forcing the phenomenon of congestion which lowers the network communication capability and coverage and accelerates network energy consumption. Therefore, this paper proposes an energy-efficient coverage control with multinodes redundancy verification (ECMRV). The algorithm constructs the coverage network model by using the positional relationship among the sensor nodes, and the proof procedure of the sector coverage expected value of the monitoring area also has been provided. On the aspect of the energy consumption, this paper gives the proportion of energy conversion functions between the working sensor nodes and the neighboring sensor nodes. And by using the function proportional to schedule the sensor nodes with low energy, we achieve the energy balance of the whole network and the optimization of the network resources. Finally, the simulation experiments indicate that this algorithm can not only improve the quality of network coverage, but completely inhibit the rapid energy consumption of the sensor nodes as well; as a result, the network lifetime extends, which has verified availability and stability of the algorithm in the paper.

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