scholarly journals Probing Low Productive area in Steel Re-Rolling Mills

2019 ◽  
Vol 8 (11) ◽  
pp. 2280-2286
Keyword(s):  
Performance Index ◽  
Rolling Mill ◽  
High Energy ◽  
Productivity Index ◽  
Manufacturing Cost ◽  
Rolling Mills ◽  
Productive Process ◽  
Productive Area ◽  
Low Performance ◽  
High Energy Consumption

Steel Re-Rolling mill is the second most important steel forming industry in India. The manufacturing process of steel re-rolling from ingots to finished products has high energy consumption and it directly affects productivity and manufacturing cost. Measuring the productivity of the process can unleash the low productive process, which leads towards rectification for increasing the productivity of lean area. The productivity of Steel Re-Rolling mill is measured by Performance Objective – Productivity model. Key performance areas were identified by intensive survey and process of prioritization was carried out. The actual values of the Key performance Areas of the system were compared with the objectivated values of the system. The outcomes lead to Productivity Index of the system, sub-system and key performance areas of the process revealing the areas with low-performance index which have the highest impact on productivity of the process. The energy subsystem is having the lowest performance index and is the main source of loss and recommendations are made to increase the productivity of energy sub-system.

scholarly journals Estimation of the Energy Consumption of the Rice and Corn Drying Process in the Equatorial Zone

2020 ◽  
Vol 10 (21) ◽  
pp. 7497
Author(s):  
Emérita Delgado-Plaza ◽  
Miguel Quilambaqui ◽  
Juan Peralta-Jaramillo ◽  
Hector Apolo ◽  
Borja Velázquez-Martí
Keyword(s):  
Energy Consumption ◽  
Agricultural Sector ◽  
High Energy ◽  
Productivity Index ◽  
Industrial Processes ◽  
Liquefied Petroleum Gas ◽  
Drying Process ◽  
Yellow Corn ◽  
Marketing Chain ◽  
High Energy Consumption

Drying is considered one of the industrial processes that requires more energy than other processes, being a topic of much interest to the agricultural sector, especially the evaluation of energy consumption for rice and corn dryers. To meet this goal, an overview survey matrix and protocols for temperature measurements of dryers were developed. The study evaluated 49 rice dryers and 14 yellow corn dryers. As a result, it was determined that the oversizing of the fan/extractor and the dryer engine generates a high energy consumption, added to the lack of insulation in the heat ducts. Therefore, the drying productivity index is very low in dryers using liquefied petroleum gas (LPG) being 0.14 dollar/quintal for rice and 0.27 dollar/quintal for corn and using biomass reaches 1.4 dollars/quintal. In relation to energy losses, these account for more than 55%. Inadequate energy management in drying processes directly influences the marketing chain of products, the losses of which are caused by fluctuations in the price of rice and corn on the domestic market, with the agricultural sector having to generate an energy efficiency plan.

A Novel and Efficient Method for Digital Printing

2013 ◽  
Vol 404 ◽  
pp. 668-671
Author(s):  
Wen Ge Ji ◽  
Hua Wu ◽  
Jing Shen ◽  
Mei Feng Wang
Keyword(s):  
High Energy ◽  
Digital Printing ◽  
Efficiency Improvement ◽  
Speed Up ◽  
High Pollution ◽  
Low Performance ◽  
Parallel Interface ◽  
High Energy Consumption ◽  
Printing Machine ◽  
Multi Core Processor

We propose a method for digital printing which is novel and efficient. Digital printing is a technical breakthrough in the field of traditional printing and dyeing industry, which is also an effective solution to solve the three high problem, namely, high energy consumption, high noise, high pollution, in the traditional printing and dyeing industry. However, the widely used methods in printing and dyeing system have some deficiencies, such as the low performance of the PC processor and the limitation of transferring data by parallel interface. The proposed method takes advantage of multi-core processor, DMA and RAID technology. Multi-core processor can speed up the processing of the print command and the print images, while DMA technology can minimize the intervention of the CPU to input/output operations which makes the CPU more effective to process the images. Furthermore, the use of RAID technology can improve the access speed of the hard disk which leading to the efficiency improvement of the entire computer system. As we can see that the combination of those three technologies can greatly improve the efficiency of digital printing machine, thus speeding up the popularity of digital printing.

Oxygen Supply Method Using Gas-Permeable Film for Wastewater Treatment

1993 ◽  
Vol 28 (7) ◽  
pp. 243-250 ◽  
Author(s):  
Y. Suzuki ◽  
S. Miyahara ◽  
K. Takeishi
Keyword(s):  
Wastewater Treatment ◽  
Energy Consumption ◽  
Oxygen Transfer ◽  
Transfer Rate ◽  
Oxygen Supply ◽  
Oxygen Transfer Rate ◽  
High Energy ◽  
High Rate ◽  
N Removal ◽  
High Energy Consumption

Gas-permeable film can separate air and water, and at the same time, let oxygen diffuse from the air to the water through the film. An oxygen supply method using this film was investigated for the purpose of reducing energy consumption for wastewater treatment. The oxygen transfer rate was measured for the cases with or without biofilm, which proved the high rate of oxygen transfer in the case with nitrifying biofilm which performed nitrification. When the Gas-permeable film with nitrifying biofilm was applied to the treatment of wastewater, denitrifying biofilm formed on the nitrifying biofilm, and simultaneous nitrification and denitrification occurred, resulting in the high rate of organic matter and T-N removal (7 gTOC/m2/d and 4 gT-N/m2/d, respectively). However, periodic sloughing of the denitrifying biofilm was needed to keep the oxygen transfer rate high. Energy consumption of the process using the film in the form of tubes was estimated to be less than 40% of that of the activated sludge process.

scholarly journals Influence of Adding Encapsulated Phase Change Materials in Aerial Lime Based Mortars

2013 ◽  
Vol 687 ◽  
pp. 255-261 ◽  
Author(s):  
Sandra Cunha ◽  
José Barroso Aguiar ◽  
Victor Ferreira ◽  
António Tadeu
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Renewable Energy Sources ◽  
High Growth ◽  
High Energy ◽  
High Growth Rate ◽  
Aesthetic Appearance ◽  
Hardened State ◽  
High Energy Consumption

Increasingly in a society with a high growth rate and standards of comfort, the need to minimize the currently high energy consumption by taking advantage of renewable energy sources arises. The mortars with incorporation of phase change materials (PCM) have the ability to regulate the temperature inside buildings, contributing for an increase in the level of thermal comfort and reduction of the use of heating, ventilation and air conditioning (HVAC) equipment, using only the energy supplied by the sun. However, the incorporation of PCM in mortars modifies some of its characteristics. Therefore, the main objective of this study was the characterization of mortars doped with two different phase change materials. Specific properties of different PCM, such as particle size, shape and enthalpy were studied, as well as the properties of the fresh and hardened state of these mortars. Nine different compositions were developed which were initially doped with microcapsules of PCM A and subsequently doped with microcapsules of PCM B. It was possible to observe that the incorporation of phase change materials in mortars causes differences in properties such as compressive strength, flexural strength and shrinkage. After the study of the behaviour of these mortars with the incorporation of two different phase change materials, it was possible to select the composition with a better compromise between its aesthetic appearance, physical and mechanical characteristics.

Dehydration and Upgrading of Lignite with Microwave

2013 ◽  
Vol 423-426 ◽  
pp. 667-673 ◽  
Author(s):  
Fan Wen Xin ◽  
Zhi Qiang Xu ◽  
Ya Nan Tu ◽  
Wei Yang ◽  
Xiang Yu Han ◽  
...  
Keyword(s):  
High Capacity ◽  
High Energy ◽  
Particle Sizes ◽  
Moisture Migration ◽  
Drying Characteristics ◽  
Microwave System ◽  
Electron Microscope Analysis ◽  
Eastern Inner Mongolia ◽  
High Energy Consumption ◽  
Unique Mechanism

For solving the problems of high energy consumption and high capacity of water-absorption, microwave dehydration technology of lignite was studied in this paper. A self-developed microwave system was used for the experiment on dehydration of lignite from eastern Inner Mongolia. It was proved that the condition of moisture migration was improved and microwave dehydration had a unique mechanism. By analyzing the effects of microwave powers, coal particle sizes, and lignite qualities on drying characteristics, it was found that the moisture decreased when the microwave power increased. it was found that the higher the power was, the faster the moisture decreased; the smaller the particle size was, the faster the moisture decreased; the less the lignite was, the faster the moisture decreased. Through the scanning electron microscope analysis, it was concluded that microwave had no significant effect on the smooth particles, and the fibrous particles and clusters particles tended to be smooth under the effect of microwave. Therefore, the interface of lignite was relatively stable, and not easy to reabsorb water after microwave.

The Application of LIFEHOPE Military Fire Blanket for Energy-Saving of Glass Furnace

2014 ◽  
Vol 912-914 ◽  
pp. 483-485
Author(s):  
Chen Rong ◽  
David Chan
Keyword(s):  
Intellectual Property Rights ◽  
Glass Furnace ◽  
Heat Insulation ◽  
High Energy ◽  
New Material ◽  
Heavy Pollution ◽  
Basic Characteristics ◽  
Save Energy ◽  
Heat Preservation ◽  
High Energy Consumption

This paper introduce the basic characteristics of LIFEHOPE Military Fire Blanket, as for independent intellectual property rights new material, we use it is heat insulation, heat preservation to save energy for glass furnace etc. Meanwhile we will explain and put forward the meaning of application of LIFEHOPE military fire Blanket for high energy consumption and heavy pollution industry and enterprise.

scholarly journals Polymer–Lipid Pharmaceutical Nanocarriers: Innovations by New Formulations and Production Technologies

Pharmaceutics ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 198
Author(s):  
Sabrina Bochicchio ◽  
Gaetano Lamberti ◽  
Anna Angela Barba
Keyword(s):  
Energy Consumption ◽  
Membrane Permeability ◽  
High Energy ◽  
Delivery Systems ◽  
Hybrid Nanoparticles ◽  
Industrial Implementation ◽  
Production Technologies ◽  
Industrial Level ◽  
High Energy Consumption ◽  
Modern Technologies

Some issues in pharmaceutical therapies such as instability, poor membrane permeability, and bioavailability of drugs can be solved by the design of suitable delivery systems based on the combination of two pillar classes of ingredients: polymers and lipids. At the same time, modern technologies are required to overcome production limitations (low productivity, high energy consumption, expensive setup, long process times) to pass at the industrial level. In this paper, a summary of applications of polymeric and lipid materials combined as nanostructures (hybrid nanocarriers) is reported. Then, recent techniques adopted in the production of hybrid nanoparticles are discussed, highlighting limitations still present that hold back the industrial implementation.

scholarly journals A categorization tool for fabric systems used in firefighters' clothing based on their thermal protective and thermo-physiological comfort performances

2018 ◽  
Vol 89 (16) ◽  
pp. 3244-3259 ◽  
Author(s):  
Sumit Mandal ◽  
Simon Annaheim ◽  
Andre Capt ◽  
Jemma Greve ◽  
Martin Camenzind ◽  
...  
Keyword(s):  
Performance Index ◽  
Protective Clothing ◽  
High Performance ◽  
Clustering Algorithm ◽  
Health And Safety ◽  
Thermal Protective Performance ◽  
Thermal Protective Clothing ◽  
Low Performance ◽  
Fabric System ◽  
Protective Performance

Fabric systems used in firefighters' thermal protective clothing should offer optimal thermal protective and thermo-physiological comfort performances. However, fabric systems that have very high thermal protective performance have very low thermo-physiological comfort performance. As these performances are inversely related, a categorization tool based on these two performances can help to find the best balance between them. Thus, this study is aimed at developing a tool for categorizing fabric systems used in protective clothing. For this, a set of commercially available fabric systems were evaluated and categorized. The thermal protective and thermo-physiological comfort performances were measured by standard tests and indexed into a normalized scale between 0 (low performance) and 1 (high performance). The indices dataset was first divided into three clusters by using the k-means algorithm. Here, each cluster had a centroid representing a typical Thermal Protective Performance Index (TPPI) value and a typical Thermo-physiological Comfort Performance Index (TCPI) value. By using the ISO 11612:2015 and EN 469:2014 guidelines related to the TPPI requirements, the clustered fabric systems were divided into two groups: Group 1 (high thermal protective performance-based fabric systems) and Group 2 (low thermal protective performance-based fabric systems). The fabric systems in each of these TPPI groups were further categorized based on the typical TCPI values obtained from the k-means clustering algorithm. In this study, these categorized fabric systems showed either high or low thermal protective performance with low, medium, or high thermo-physiological comfort performance. Finally, a tool for using these categorized fabric systems was prepared and presented graphically. The allocations of the fabric systems within the categorization tool have been verified based on their properties (e.g., thermal resistance, weight, evaporative resistance) and construction parameters (e.g., woven, nonwoven, layers), which significantly affect the performance. In this way, we identified key characteristics among the categorized fabric systems which can be used to upgrade or develop high-performance fabric systems. Overall, the categorization tool developed in this study could help clothing manufacturers or textile engineers select and/or develop appropriate fabric systems with maximum thermal protective performance and thermo-physiological comfort performance. Thermal protective clothing manufactured using this type of newly developed fabric system could provide better occupational health and safety for firefighters.

scholarly journals High energy consumption or low economic growth?

Nature ◽  
1978 ◽  
Vol 273 (5664) ◽  
pp. 587-587
Author(s):  
L. G. BROOKES
Keyword(s):  
Economic Growth ◽  
Energy Consumption ◽  
High Energy ◽  
High Energy Consumption
Sign in / Sign up

Export Citation Format

Share Document