scholarly journals DYNAMIC CHARACTERISTICS OF THE PROCESS OF GRINDING GRAPE RAW MATERIALS AND THEIR IMPACT ON THE ENERGY INTENSITY AND PERFORMANCE OF THE GRINDER

2019 ◽  
Vol 54 (4) ◽  
pp. 130-134
Author(s):  
V.V. Novikov ◽  
◽  
E.V. Litvinov ◽  
N.V. Morozov ◽  
E.A. Borisov ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Dynamic Characteristic ◽  
Dynamic Characteristics ◽  
Fruits And Vegetables ◽  
Energy Intensity ◽  
Raw Materials ◽  
Starting Material ◽  
Analytical Expression ◽  
Different Types ◽  
And Performance

The purpose of the study is to establish an analytical expression describing the energy consumption during juicing depending on the shape of the knife – divider. The article presents a design for juicing different types of fruits and vegetables. The dynamic characteristic of the process of grinding the starting material (for example, grapes) is given. An expression for determining the power spent on grinding the starting material is analytically substantiated and presented.

scholarly journals UNIQUE FEATURES OF UTILIZATION OF HORTICULTURAL CROPS IN KOREA

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 700b-700
Author(s):  
Seung Koo Lee
Keyword(s):  
Fruits And Vegetables ◽  
Raw Materials ◽  
Red Pepper ◽  
Traditional Foods ◽  
Processing Methods ◽  
Horticultural Crops ◽  
Soybean Paste ◽  
Different Types ◽  
Horticultural Products ◽  
Fermented Products

Kimchi is a kind of a spicy fermented pickle, and there are many varieties of kimchi depending on processing methods, seasons, and the availability of certain vegetables. Kimchi contains good amounts of nutrients and stimulates the appetite. The taste of kimchi is attributed to the unique blending and fermentation of ingredients. Detailed information about kimchi preparations and raw materials will be discussed. Various utilization methods of other horticultural products unique in Korea will be outlined. Types of processing include the salting, drying, and fermenting of fruits and vegetables. Soysauce, soybean paste, and red pepper paste are the important fermented products which will be summarized. Different types of traditional foods in Korea will also be introduced.

scholarly journals PERFECTION OF THE PYROLYSIS PROCESS

2017 ◽  
pp. 113-117
Author(s):  
E. R. Magaril ◽  
R. Z. Magaril ◽  
L. V. Trushkova
Keyword(s):  
Energy Consumption ◽  
Raw Materials ◽  
Specific Energy Consumption ◽  
Relative Reactivity ◽  
Methyl Radicals ◽  
Pyrolysis Process ◽  
Hydrogen Atoms ◽  
Thermal Reactions ◽  
Different Types ◽  
Liquid Products

There were obtained the values of the relative reactivity of different types of bonds in interaction with hydrogen atoms, methyl radicals, as well as values of the effective relative reactivity when using an inert diluent, enabling to improve knowledge about the pyrolysis of raw materials of a given composition. A method was developed for increasing the selectivity of the pyrolysis for the desired products of the process (lower olefins), reducing the yield of liquid products of condensation and specific energy consumption, based on the influence of hydrogen on the thermal reactions of alkanes and alkenes.

scholarly journals Model of the Market Value of Apartments Including a Time Variable and Energy Features of a Building

2020 ◽  
Vol 20 (1) ◽  
pp. 117-132
Author(s):  
Iwona Foryś ◽  
Ewa Putek-Szeląg ◽  
Beata Ziembicka
Keyword(s):  
Energy Consumption ◽  
Real Estate ◽  
Energy Intensity ◽  
Residential Buildings ◽  
Market Value ◽  
Energy Performance ◽  
Real Estate Market ◽  
Multidimensional Analysis ◽  
Residential Units ◽  
Different Types

AbstractResearch background: The implementation of EU directives in national legislations imposes an obligation to monitor energy efficiency in every sector of the economy, including construction. In the era of energy conservation, which results from environmental requirements, as well as from constantly increasing energy prices, the energy consumption of premises and buildings becomes an important prerequisite for decision-making processes in the real estate market. There have also been changes in the provisions of the Act on Real Estate Management, which impose an obligation on the professional group of property appraisers to incorporate energy performance certificates for buildings and premises into the valuation process. Energy intensity in terms of the demand for heating of multi-family residential buildings will be the basis for the assessment of its impact on the market value of residential units.Purpose: The article analyses the energy intensity of different types of buildings (e.g. low and high-rise buildings) and the diverse distribution of units in the building, especially with regard to their exposure to the different point of the compass. The research covered the Słoneczne housing estate in Szczecin, in a situation where the property appraiser does not have access to the energy performance certificates of the estimated apartments as well as apartments taken for comparison. The aim of the study is to identify the relationship between energy intensity and market value of residential units on the selected real estate market. The analysis will be based on data from the Price and Value Register of the County Office, a collection of statistics and public information as well as on the authors’ own databases and research.Research methodology: A multidimensional analysis will be used to distinguish homogeneous groups of residential units due to their property attributes. The study will also employ a valuation model including energy intensity and time variables.Results: The study showed that building type is one of the features determining energy consumption by a building. Depending on the period, the introduced attributes explained the evolution of the unit price at 78%, 75% and 24%. The parameters of the variables Size, Neighborhood and Time were found to be statistically significant. What is more, in all three periods, the value of the residential unit was significantly affected by the type of building which determined the energy performance of the building.Novelty: Energy intensity in terms of the heating demand of multi-family residential buildings will be the basis for the assessment of its impact on the market value of residential units. The article analyses the energy intensity of different types of buildings (e.g. low and high buildings) and the different location of units in a building, especially in relation to the directions of the world.

Residual Vibration of a Tapered Hollow Metal Beam

2012 ◽  
Vol 538-541 ◽  
pp. 2508-2511
Author(s):  
Bo Wun Huang ◽  
Z. H. Weng ◽  
Jao Hwa Kuang
Keyword(s):  
Dynamic Characteristic ◽  
High Precision ◽  
Dynamic Characteristics ◽  
Material Properties ◽  
High Performance ◽  
Residual Vibration ◽  
Hollow Beam ◽  
And Performance ◽  
Design And Manufacture ◽  
Hollow Metal

An investigation of the residual vibration of a round tapered hollow metal beam is considered in this article. To improve the tapered hollow metal beam performance and capabilities, it is necessary to understand the dynamic characteristics, residual vibration, of this above Beam. The properties of a tapered hollow beam bring about some investigations to study. It attempt to design and manufacture a high performance sporting ball rod. More high precision and performance sporting ball rod require more stable, small residual vibration. Besides, most important of all, a small residual vibration sporting rod results in the stable sweeping and comfortable sporting for a sportsman. To design and manufacture a high performance sporting ball rod, the dynamic characteristic and residual vibration must be study. Most investigations pay attentions to the sweeping, damper and material properties. Few studies focus on dynamic characteristics and residual vibration of a tapered hollow beam. It is the aim to study in this article.

scholarly journals Efficiency of Wireless Sensor Network with MIMO Techniques

2019 ◽  
Vol 9 (2) ◽  
pp. 4896-4898
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Wireless Sensor Network ◽  
Sensor Network ◽  
Performance Metrics ◽  
Wireless Sensor ◽  
Total Energy Consumption ◽  
Different Types ◽  
Energy Consumptions ◽  
And Performance

A performance analysis of the energy efficiency of Wireless Sensor Network with different types of MIMO techniques is carried out in this paper. MIMO concept is integrated with WSN and performance of such network is analyzed and experimented in this paper with respect to different energy consumptions viz., transmit energy consumption and total energy consumption. It is concluded that WSN with BPSKMIMO outperforms WSN with SISO. The results published in this paper show that the integration WSN with BPSK-MIMO can achieve better performance metrics

scholarly journals The forecast of total technological energy intensity of ferrous metallurgy products of Ukraine according to the production schemes till 2040

2021 ◽  
Vol 2021 (2) ◽  
pp. 44-52
Author(s):  
G.O. Kuts ◽  
◽  
O.I. Teslenko ◽  
Keyword(s):  
Energy Consumption ◽  
Ferrous Metallurgy ◽  
Structural Changes ◽  
Energy Intensity ◽  
Raw Materials ◽  
Coke Oven ◽  
Energy Resources ◽  
Converter Steel ◽  
Pig Iron ◽  
Coke Oven Gas

The perspective development of ferrous metallurgy of Ukraine for the period up to 2040 is considered. This development will take place due to structural changes of production schemes and technological measures with more effective characteristics of energy resources, energy carriers, and raw materials that directly influence the energy intensity of metallurgical products. The existing energy intensity calculations techniques were advanced and the total technological energy intensity of ferrous metallurgy products was calculated. Comparison of indicators of total technological energy intensity of final products of ferrous metallurgy (rolled metal) showed that rolled products produced by the latest energy-efficient technological schemes, which are projected to be implemented by 2040, will reduce total technological energy intensity up to 20% less than similar technological schemes used since 2017. For example, the total technological energy consumption of rolled billets of oxygen-converter steel will decrease by 17.2% (in terms of physical volume in the forecasted 2040 will be 862.293 kg c.e./t compared to the base 2017 – 1042.044 kg c.e./t), scrap process steel by 8.9% (respectively 923.999 kg c.e./t and 1014.120 kg c.e./t) and electric arc steel by 20% (703.292 kg c.e./t and 878.913 kg c.e./t). Regarding coke production, the total technological energy consumption of coke is projected to decrease by 24.0%: in 2040 it will be 210.040 kg c.e./t (in the base year 2017 it is equal to 244.585 kg c.e./t), and coke oven gas by 16.0%. , 4% (respectively 33.468 kg c.e./t and 38.72 kg c.e./t). The analysis of the role of components of energy intensity of products, namely for such products as iron ore, blast furnace coke, coke oven gas, and pig iron was made. The main components are energy resources, the share of which in the energy intensity of products is from 60 to 90%, and for other products, it is a raw material, the shares of which are within the same ranges. The main component in the structure of the formation of the total technological energy consumption of rolled products is the initial energy consumption of raw materials, the value of which is in the range of 90–92%. Keywords: technological energy intensity, structural changes, technological measures, energy resources, raw materials, pig iron, steel, rolled products

scholarly journals Efficiency comparative analysis of electric pulse destruction of different types rocks of the Murmansk region.

2020 ◽  
Vol 11 (7-2020) ◽  
pp. 92-97
Author(s):  
Aleksandr S. Potokin ◽  
◽  
Andrei A. Klimov ◽  
Keyword(s):  
Comparative Analysis ◽  
Lower Energy ◽  
Energy Intensity ◽  
Raw Materials ◽  
Electric Pulse ◽  
Mineral Raw Materials ◽  
Hard Rocks ◽  
Mechanical Methods ◽  
Murmansk Region ◽  
Different Types

Electric pulse destruction of certain types of mineral raw materials has a number of advantages over mechanical methods of destruction, for example, selectivity of destruction without damaging the crystal structures of the destroyed raw materials; lower energy intensity of the processes of destruction of hard rocks: no additional contamination of materials when crushing especially hard and abrasive materials. Comparative analysis of the results of destruction of various types of rocks allows us to conclude about the advantages or disadvantages of electric pulse destruction of certain rocks.

scholarly journals Investigation of the use of various materials for the construction of an enthalpy exchanger

2020 ◽  
Vol 15 (2) ◽  
pp. 75-94
Author(s):  
Pavol Kozák ◽  
Danica Košičanová
Keyword(s):  
Energy Consumption ◽  
Air Conditioning ◽  
Heat Recovery ◽  
Energy Intensity ◽  
Primary Sources ◽  
Large Fluctuations ◽  
Different Types ◽  
Reduction Of Energy Consumption ◽  
Air Conditioning Systems ◽  
Reducing Energy

AbstractConsidering the current gradual depletion of non-renewable primary sources, it is necessary to address the reduction of energy consumption in ventilation and air conditioning systems. Although heat recovery alone reduces the energy intensity of these systems, if moisture recovery is considered as well, the contribution in reducing energy consumption is significant. These are mainly the devices designed primarily for spaces where people stay permanently, which do not allow large fluctuations in temperature and humidity. In cooperation with the manufacturer of heat recovery exchangers, we determined our own method of comparing different types of materials that could be used to design an exchanger which would also allow moisture recovery. These results in a significant reduction in energy consumption used to humidify the air in ventilation and air conditioning systems. It is one of the possible ways how to compare individual samples that are being measured. This article primarily deals with the comparison of three different types of materials, out of the total number of twelve measured samples.

Characteristics of Physicians Referred for a Competence Assessment: A Comparison of State Medical Board and Hospital Referred Physicians

2010 ◽  
Vol 96 (3) ◽  
pp. 8-15 ◽  
Author(s):  
Elizabeth S. Grace ◽  
Elizabeth J. Korinek ◽  
Zung V. Tran
Keyword(s):  
Clinical Competence ◽  
Competence Assessment ◽  
Average Performance ◽  
Medical Board ◽  
Key Characteristics ◽  
Different Types ◽  
Specialty Board ◽  
And Performance ◽  
State Medical Boards ◽  
State Medical Board

ABSTRACT This study compares key characteristics and performance of physicians referred to a clinical competence assessment and education program by state medical boards (boards) and hospitals. Physicians referred by boards (400) and by hospitals (102) completed a CPEP clinical competence assessment between July 2002 and June 2010. Key characteristics, self-reported specialty, and average performance rating for each group are reported and compared. Results show that, compared with hospital-referred physicians, board-referred physicians were more likely to be male (75.5% versus 88.3%), older (average age 54.1 versus 50.3 years), and less likely to be currently specialty board certified (80.4% versus 61.8%). On a scale of 1 (best) to 4 (worst), average performance was 2.62 for board referrals and 2.36 for hospital referrals. There were no significant differences between board and hospital referrals in the percentage of physicians who graduated from U.S. and Canadian medical schools. The most common specialties referred differed for boards and hospitals. Conclusion: Characteristics of physicians referred to a clinical competence program by boards and hospitals differ in important respects. The authors consider the potential reasons for these differences and whether boards and hospitals are dealing with different subsets of physicians with different types of performance problems. Further study is warranted.

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