Comparative Analysis of Energy and Exergy Performance of ...

The study of the viability of hydrogen production as a sustainable energy source is a current challenge, to satisfy the great world energy demand. There are several techniques to produce hydrogen, either mature or under development. The election of the hydrogen production method will have a high impact on practical sustainability of the hydrogen economy. An important profile for the viability ...

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exergyyyyy.pdf | Exergy | System

Abstract: This thesis demonstrates the usefulness of the exergy concept for analyzing systems which convert energy, material and/or information, e.g., a society or an industrial process. The first paper, Exergy – a Useful Concept within Resource Accounting, deals with the theory of exergy in a new and simple way.Exergy is applied to matter, is related to other thermodynamic potentials and to ...

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Solids Drying: Basics and Applications - Chemical ...

Apr 01, 2014· Dryer efficiency. With increasing concern about environmental degradation, it is desirable to decrease energy consumption in all sectors. Drying has been reported to account for anywhere from 12 to 20% of the energy consumption in the industrial sector.

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Paper Manufacturing process - SlideShare

Aug 31, 2017· papermaking machine a slurry of fibre (usually wood or other vegetable fibres) is drained to create a continuous paper web. after the forming section the wet web passes through a press section to squeeze out excess water, then the pressed web passes through a heated drying section. 17. treatment of waste from pulp industry 18.

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A new approach to the exergy analysis of absorption ...

0.1805 kg/s. The value of the endogen-ous exergy destruction in the evaporator is larger than the exergy destruction in the real process because the increase in specic entropy generation outweighs the effect of the decrease of the mass ow rate. Table 10 Summary of the results from advanced exergy analysis of the ARMa Component Real ARM. Basic ...

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Understanding the effect of machine technology and ...

Different from the dry creped machine, the TAD machine does not have a press section, and this helps to preserve the three-dimensional structure of the paper web. Dewatering before the drying section is achieved with vacuum on suction boxes to a consistency of about 20% to 25%.

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Energy Efficiency Improvement and Cost Saving ...

Chapter 4, the use of energy in the U.S. pulp and paper industry is discussed along with an overview of the main end uses of energy in typical pulp and paper mills. Chapters 5 through 17 describe many available measures for improving energy efficiency in the U.S. pulp and paper industry, with a focus on energy-efficient technologies and practices

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Non-contact drying and web guiding

Comparison of energy efficiency Infrared drying 50 – 55 Air drying 55 – 70 0 25 50 75 Gas Gas Gas Achievable system efficiency in % (depending on operating conditions and configuration). Former combined systems 55 – 65 Gas qDry Pro 65 – 75 Voith Paper .

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Exergy-based analysis of irreversibilities for heat pump ...

heat supply in a spray drying facility for finding the design with an optimal economic performance. From the review of the advanced exergy analysis in refrigeration and heat pump systems it may be concluded that advanced exergy analysis is generally a suitable method for evaluating the performance and the limitations of a given system.

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The complete solution for fabric cleaning CleanLine

for every paper machine section As a leading supplier of world-class paper machines and high-quality fabrics, designing top-performing cleaning systems is an integral part of our business at Voith. CleanLine offers a complete range of cleaning systems to remove contamination in every section of your paper machine.

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Energy-Efficiency Improvement Opportunities for the ...

efficiency investment is sound business strategy in today's manufacturing environmenta (Worrell and Galitsky, 2004). In many countries,government policies and programs aim to assist

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APV Dryer Handbook

short drying times. Batch type fluidized bed dryers have, therefore, superseded forced convection units in many cases – notably in the drying of pharmaceuticals and for the processing of certain thermoplastics. These machines generally are available in a range of standard sizes with batch capacities from 50 to 200 lbs/h

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Pulp and Paper Industry Solutions Engineered by Runtech

Paper machine runnability & efficiency audit ... Drying section audit Sheet moisture profile survey Machine hall ventilation audit ... RunEco Paper Machine Vacuum Blower Systems f or comprehensive energy saving and vacuum system optimization. Learn More.

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Energy-Efficiency Improvement Opportunities for the ...

efficiency investment is sound business strategy in today's manufacturing environmenta (Worrell and Galitsky, 2004). In many countries,government policies and programs aim to assist

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Effective Preventive Maintenance Scheduling: A Case Study

Basically, PM can be optimized as the machines have been clustered into the group of machines. This will lead to the ease of maintenance activities, and reduce the workload carried by maintenance staff. In the case study company, the production floor of manufacturing FPC board consists of 109 machines with only 8 technicians for maintenance work.

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exergyyyyy.pdf | Exergy | System

Abstract: This thesis demonstrates the usefulness of the exergy concept for analyzing systems which convert energy, material and/or information, e.g., a society or an industrial process. The first paper, Exergy – a Useful Concept within Resource Accounting, deals with the theory of exergy in a new and simple way.Exergy is applied to matter, is related to other thermodynamic potentials and to ...

Get price

exergyyyyy.pdf | Exergy | System

Abstract: This thesis demonstrates the usefulness of the exergy concept for analyzing systems which convert energy, material and/or information, e.g., a society or an industrial process. The first paper, Exergy – a Useful Concept within Resource Accounting, deals with the theory of exergy in a new and simple way.Exergy is applied to matter, is related to other thermodynamic potentials and to ...

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International Journal of Exergy (IJEX) Inderscience ...

Various optimization schemes with exergy efficiency, exergy destruction rate, as well as hourly hydrogen generation as optimization targets are considered. The optimization results comparison between base case and optimum design shows that exergetic efficiency improves by about 2.3% and rate of exergy destruction decrease by about 0.791 MW.

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Fulton Systems

Paper Machine Drying Section Performance Audits Fulton Facts No. 1: Venting Costs Thermocompressor Efficiency & Performance Paper Thermocompressors Love 'em or hate 'em Paper Fulton Systems Engineered Equipment Thermocompressors Brochure Thermocompressors Out of Sync Brochure Condensers Brochure Desuperheater Brochure Separator Modules Brochure

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Exergy Flows in Industrial Processes | Exergy | Pulp ...

The exergy flows and losses for a pulp and paper mill and a steel plant and rolling mill are presented and the exergy losses are determined. The aim is to show the simplicity and value of using the concept of exergy when analyzing industrial processes and to develop conventions and standards within the field.

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Full article: Drying of paper: A review 2000–2018

Apr 04, 2019· Introduction. Worldwide about 410 million tons of paper were produced 2016 [] and notwithstanding the internet era is still increasing year by year. Drying of the paper (printing paper, board, and tissue) is a major step on the paper producing machine requiring large amounts of energy and setting high demands on the quality for the produced paper grades.

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US7767061B2 - Wet/dry crepe swing paper machinery - Google ...

A swing paper machine configured to manufacture both wet crepe paper web having a moisture content of at least 20% and dry crepe paper web having a moisture content less than about 15%. The paper machine includes a Yankee dryer having a paper web positioned thereon, a creping doctor blade configured to remove the paper web from the Yankee dryer as either the wet crepe paper web or the dry ...

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Energy Efficiency Improvement and Cost Saving ...

Chapter 4, the use of energy in the U.S. pulp and paper industry is discussed along with an overview of the main end uses of energy in typical pulp and paper mills. Chapters 5 through 17 describe many available measures for improving energy efficiency in the U.S. pulp and paper industry, with a focus on energy-efficient technologies and practices

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Thermodynamic and exergy analysis and optimization of a ...

Applied Thermal Engineering Thermodynamic and exergy analysis and optimization of a transcritical CO2 power cycle driven by geothermal.. Applied Thermal Engineering 2016 / 10 Vol. 109 Thermodynamic and exergy analysis and optimization of a transcritical CO2 power cycle driven by geothermal energy with liquefied natural gas as its heat sink

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paper3 EXERGY | Exergy | Pulp (Paper) | Avaliação gratuita ...

paper3 EXERGY | Exergy | Pulp (Paper) | Avaliação gratuita ... ... EXERGY

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Drying of Organic Solvents: Quantitative Evaluation of the ...

Aug 12, 2010· metric Karl Fischer titrators since Burfield's day now allow accurate measurements of water in organic solvents at the ppm level.6 The objective of the present study was not to comprehensively cover a wide cross section of drying agents (Burfield and co-workers have already adequately per-formed this task, highlighting problem areas in the ...

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Fabrics for every paper machine | Voith

CleanWeave dryer fabrics are designed for best drying efficiency. Zircon and Zircon High further meet your needs for both hydrolysis resistance and abrasive conditions.. These new fabrics, like all CleanWeave designs, combine a tight structure with minimum crossover points to resist the build-up of contaminants inside the fabric and produce high drying efficiency – all in one fabric.

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Trends in Austrian Resource Efficiency: An Exergy and ...

Sep 26, 2016· Understanding China's past and future energy demand: An exergy efficiency and decomposition analysis. Applied Energy 155: 892–903. [Google Scholar] Bruckner M., Giljum S., Lutz C., and Wiebe K. S.. 2012. Materials embodied in international trade—Global material extraction and consumption between 1995 and 2005.

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energy and exergy analysis of fcc unit__

DISCUSSION 4.1 Conversion section It can be seen from table 2 and 3 that the regenerator and recovery system suffer the greatest energy and exergy losses and supply a low energy utilization efficiency of 77.18.Th e recovery heat energy of the flue gas should be paid attention due to the high energy losses coefficient of 16.80 .

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Papermaking PAPERMACHINE – PRESSING 1. INTRODUCTION

the structure and runnability of the paper and thus the operating efficiency of the machine (Wahlstrom, 1969). The dewatering capacity of a press section and the properties of paper depend on the design and the number of nips. The risk of web breaks is determined by the general design of press section and the arrangement of open draws if any.

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UNDERSTANDING GAS TURBINE PERFORMANCE

operate, and the fuel(s) and NOx suppression methods which will be utilized. This paper is a primer presenting an explanation of typical gas turbine and GTG package rating methods and why and how they are corrected, so that an accurate real-life picture of the performance envelope of a unit can be determined for the examiner's evaluation.

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Drying of Organic Solvents: Quantitative Evaluation of the ...

Aug 12, 2010· metric Karl Fischer titrators since Burfield's day now allow accurate measurements of water in organic solvents at the ppm level.6 The objective of the present study was not to comprehensively cover a wide cross section of drying agents (Burfield and co-workers have already adequately per-formed this task, highlighting problem areas in the ...

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An Experimental Investigation of Performance and Exergy ...

Sep 17, 2010· An experimental investigation has been carried out to determine the thermal behavior of cooling fluid as it passes through a vortex tube and the effects of the orifice nozzle number and the inlet pressure on the heating and cooling performance of the counterflow type vortex tube (RHVT).

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Effective Preventive Maintenance Scheduling: A Case Study

Basically, PM can be optimized as the machines have been clustered into the group of machines. This will lead to the ease of maintenance activities, and reduce the workload carried by maintenance staff. In the case study company, the production floor of manufacturing FPC board consists of 109 machines with only 8 technicians for maintenance work.

Get price