scholarly journals The Material Indices Method in the Sustainable Engineering Design Process: A Review

2019 ◽  
Vol 11 (19) ◽  
pp. 5465 ◽  
Author(s):  
Bogdan Branowski ◽  
Marek Zabłocki ◽  
Maciej Sydor
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Specific Energy Consumption ◽  
Construction Materials ◽  
High Sensitivity ◽  
Concept Design ◽  
Design For The Environment ◽  
Principles Of Design ◽  
The 1960S ◽  
The Impact

The material indices method has its application in both the design of construction materials and products. The method has evolved since the 1960s and has been described in German, Russian, Polish, and English scientific literature. In the 1990s, the method was adapted to Design for the Environment with the inclusion of specific energy consumption indicators for various construction materials. The article cites six principles of Design for the Environment and presents specific energy consumption indicators according to various authors. This data was then used in two sample applications of the material indices method to determine the specific energy consumption of product manufacture: of a support structure of the standing frame and a compression spring design. In the conclusions, the significant limitations of the material indices method are emphasized, which are not extensively discussed in the literature on the subject, such as its high sensitivity to the accuracy of the adopted energy consumption indicators for materials in view of the actual production process; not taking into consideration all the negative aspects of the materials’ impact on the environment, or the difficulties associated with predicting the impact of material production technology on the material indices. On the other hand, their simple functional form makes them ideal for incorporation into modern CAD software and in product optimization at the initial stage of concept design.

scholarly journals Experimental and Numerical Investigation of Hard Rock Breakage by Indenter Impact

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Hongxiang Jiang ◽  
Zhiyuan Cai ◽  
Ouguo Wang ◽  
Deguang Meng
Keyword(s):  
Energy Consumption ◽  
Impact Velocity ◽  
Impact Energy ◽  
Specific Energy ◽  
Specific Energy Consumption ◽  
Decisive Role ◽  
Rock Breakage ◽  
Radial Cracks ◽  
The Impact ◽  
Indenter Shape

To investigate the effect of indenter shape, impact energy, and impact velocity on the rock breakage performance, a test device for rock fragmentation by indenter impact was developed to obtain the rock breakage volume, depth, and area under different impact conditions. By comparing the rock breakage volume, depth, area, and specific energy consumption, the results show that indenter shape has a greater influence on the rock breakage performance than that of the impact velocity with the same impact energy, and impact energy plays a decisive role in rock breakage performance with an identical indenter shape and impact velocity. For the lowest to highest specific energy consumption, the order of indenter shape is cusp-conical, warhead, hemispherical, spherical-arc, and flat-top under the same impact energy and velocity, but the cusp-conical indenter is damaged after several impacts. The rock breakage volume, depth, and area all increase with the increase in impact energy, but the effect of the impact velocity could be ignored under the same impact energy. In addition, the rock breakage features of the numerical simulation and experiments are similar, which show that the crushing zone close to the indenter impact point is mainly caused by the high compressive stress, and then radial cracks are caused by the accumulative energy release. The findings of this study will contribute to progress in the performance and efficiency for percussive rock drilling.

scholarly journals New approaches to assessing the impact of stable condensate on the main indicators of marketable oil on the example of the “Novy Port” oil and gas condensate field

2021 ◽  
Vol 6 (1) ◽  
pp. 88-93
Author(s):  
I. M. Zamanov ◽  
P. N. Afanasyev ◽  
A. V. Kim ◽  
S. A. Vershinin ◽  
A. N. Blyablyas
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Oil And Gas ◽  
Saturated Vapor ◽  
Specific Energy Consumption ◽  
Gas Condensate ◽  
Physicochemical Composition ◽  
Key Indicator ◽  
Pumping Equipment ◽  
The Impact

This article reflects the main points of the influence of light hydrocarbons on the physicochemical composition and properties of marketable oil of the Novy Port oil and gas condensate field, describes the uncertainties that should be taken into account by the time gas reserves are involved. For a specific task, the risks of influencing the key indicator according to GOST R – 51858-2002 (saturated vapor pressure) were removed. For the first time, a shift of the critical point of paraffin formation has been revealed. The result of the work will be the predicted behavior of the fluid when gas reserves are involved, as well as a decrease in energy consumption for heating the pipeline of external transport, an increase in the cleanup period, a decrease in the specific energy consumption (specific energy consumption) of pumping equipment, as a result – a decrease in operating costs.

scholarly journals Energy efficiency in the zeolite impact crushing plant of San Andrés (Holguín, Cuba)

DYNA ◽  
2015 ◽  
Vol 82 (193) ◽  
pp. 93-97
Author(s):  
José Ramón Hechavarría-Pérez ◽  
Alfredo L. Coello-Velazquez ◽  
Fernando Daniel Robles Proenza ◽  
Juan María Menendez-Aguado
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Specific Energy ◽  
Specific Energy Consumption ◽  
Operational Parameters ◽  
Impact Crushing ◽  
San Andres ◽  
Crushing Plant ◽  
The Impact ◽  
The Relationship

The present work deals with the impact crusher energy efficiency at San Andres Zeolitic Plant. Varying the operational parameters levels (rotor velocity, hammer row number and crusher capacity) were carried up two experimental series: First series was aimed to obtain the influence of the operational parameters on the power consumed by the crusher motor; the second series evaluated the crusher specific energy consumption behavior. First series empirical model obtained describes the influence of operational parameters on power consumption. Also the relationship among specific energy consumption and crusher speed and capacity were obtained. The most efficient operational regimen corresponded to 1100 rpm of the rotor velocity, 2 hammer row numbers and 15 t/h of crusher capacity.

scholarly journals INVESTIGATION OF THE EFFECT OF THE DENSITY OF MONOLITHIC EXPANDED-CLAY CONCRETE ON THE ENERGY EFFICIENCY OF BUILDINGS OPERATED UNDER VARIABLE HEAT MODE

2019 ◽  
Vol 9 (3) ◽  
pp. 50-55
Author(s):  
Mikhail E. SAPAREV ◽  
Yury S. VYTCHIKOV ◽  
Andrey S. PRILEPSKY ◽  
Maxim I. URYADOV
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Lightweight Concrete ◽  
Specific Energy Consumption ◽  
Thermal Characteristics ◽  
Outer Wall ◽  
Heat Mode ◽  
Calculation Results ◽  
The Impact ◽  
Made In

This article presents the results of a theoretical study of the impact of the density of monolithic expanded clay concrete on the specific energy consumption in the operation of the cottage building in conditions of intermittent heating. In view of the fact that the outer walls are made in the form of well masonry of various materials, in order to simplify the solution of the problem, averaging of their main thermal characteristics is made. In determining the effect of heating the outer wall and the specific energy used the author's approximate analytical method, convenient for engineering calculations. The study showed that the use no-fine expanded-clay lightweight concrete significantly reduces the specific energy consumption compared to conventional large-porous expanded clay. The lowest energy consumption according to the calculation results refers to the minimum density of sandless no-fine expanded-clay lightweight concrete, equal to 300 kg/m3.

Decomposition of Overall Specific Energy Consumption over 1990-2010 in China’s Cement Industry

2013 ◽  
Vol 291-294 ◽  
pp. 1312-1317
Author(s):  
Hai Meng Ge ◽  
Hai Lin Mu ◽  
Xi Long Cong ◽  
Hua Nan Li
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Structural Adjustment ◽  
Specific Energy Consumption ◽  
Decomposition Analysis ◽  
Cement Industry ◽  
Time Intervals ◽  
Complete Decomposition ◽  
Process Structure ◽  
The Impact

This paper presents a complete decomposition analysis of overall SEC (specific energy consumption) in China’s cement industry for the period 1990-2010 divided into four equal time intervals. The complete decomposition method developed by Sun is used to analyze the nature of three factors: clinker share, process structure and kiln efficiency. However, to consider the overall specific energy consumption, we also consider the impact of ancillary process. The results show that all of the four factors drive overall SEC down in the entire period, while only the factor of clinker share drive overall SEC up during the period 1995-2000. Moreover, based on the analysis of decomposition results, the technological improvement and structural adjustment would result in major potential for the reduction of overall SEC in the future.

scholarly journals ANALYSIS OF THE IMPACT OF KINEMATIC INSUFFICIENCY OF BRANCHES OF A CLOSED CONTOUR REDUCED POWER INPUT IN THE MILL OF THE MKAD SYSTEM

2019 ◽  
Vol 4 (3) ◽  
pp. 134-148
Author(s):  
Александр Остановский ◽  
Aleksandr Ostanovskiy
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Raw Materials ◽  
Specific Energy Consumption ◽  
Power Input ◽  
Motor Shaft ◽  
Degree Of Deformation ◽  
Grinding Mills ◽  
Drive Motor ◽  
The Impact

The necessity of improving technological operations in the processing of mineral raw materials and the use of energy-efficient grinding equipment is substantiated. The technical and technological benefits of vertical dynamic autogenous grinding mills are given. They are based on a method of self-grinding of the material, which allows to reduce the specific energy consumption. The technical advantages of the MKAD system mills, the structural schemes of which have an indifferent group are explained. Since the mills of this system additionally use so-called “circulating” energy, depending on the degree of deformation of the drive motor shaft, it is necessary to study the effect of kinematic mismatch of closed-circuit branches on the specific energy consumption of grinding. The graphic dependences of kinematic discrepancy effect on the specific energy consumption of grinding in the MKAD system mills are presented.

scholarly journals Waste heat recovery at the glass industry with the intervention of batch and cullet preheating

2016 ◽  
Vol 20 (4) ◽  
pp. 1245-1258 ◽  
Author(s):  
Ioannis Dolianitis ◽  
Dionysios Giannakopoulos ◽  
Christina-Stavrula Hatzilau ◽  
Sotirios Karellas ◽  
Emmanuil Kakaras ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Co2 Emissions ◽  
Glass Furnace ◽  
Specific Energy ◽  
Flue Gas ◽  
Waste Heat ◽  
Specific Energy Consumption ◽  
Container Glass ◽  
Gas Temperature ◽  
The Impact

A promising option to reduce the specific energy consumption and CO2 emissions at a conventional natural gas fired container glass furnace deals with the advanced utilization of the exhaust gases downstream the air regenerators by means of batch and cullet preheating. A 3-dimensional computational model that simulates this process using mass and heat transfer equations inside a preheater has been developed. A case study for an efficient small-sized container glass furnace is presented dealing with the investigation of the impact of different operating and design configurations on specific energy consumption, CO2 emissions, flue gas energy recovery, batch temperature and preheater efficiency. In specific, the effect of various parameters is studied, including the preheater?s dimensions, flue gas temperature, batch moisture content, glass pull, combustion air excess and cullet fraction. Expected energy savings margin is estimated to 12-15%.

Energy-Efficient Vibratory Feeder of Bulk Construction Materials

2014 ◽  
Vol 670-671 ◽  
pp. 458-461 ◽  
Author(s):  
Alexander D. Ishkov ◽  
Alexander V. Stepanov ◽  
Svjatoslav V. Miloradov ◽  
Irina V. Voronina
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Energy Efficient ◽  
Specific Energy Consumption ◽  
Construction Materials ◽  
Elastic Membrane ◽  
Bulk Materials ◽  
Technical Solutions ◽  
Vibrating Feeders ◽  
Vibrating Feeder

Any processing of bulk materials requires their moving and uniform feed (dosage). On this depends the quality and efficiency of many technological processes. For uniform and controlled supply of bulk, materials for transporting or processing machines use feeders. Among feeders in recent years, an increasing distribution received disk vibrating feeders, which are characterized by small size, without moving parts, prostate, reliability, accuracy and smooth control supply. Disk vibrating feeder has a horizontal spreading disk, which is located coaxially and with a gap below the outlet of the hopper. Spreading disk is connected with vibratory drive. This research was aimed at finding technical solutions ensuring the reduction of specific energy consumption of disk vibrating feeder. The study showed, that if the spreading disc perform with a central hole, which is closed by an elastic membrane, then this can significantly reduce the specific energy consumption per unit of production.

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