scholarly journals APPLICATION OF DESIGN EXPERT IN THE ANALYSIS OF RESPONSE TRANSFORMATION OF PROCESSES – A CASE STUDY OF BIOETHANOL PRODUCTION PROCESS FROM CORN-STOVER.

2017 ◽  
Vol 5 (3) ◽  
pp. 2006-2017
Author(s):  
OhimorEvuensiri Onoghwarite ◽  
◽  
NdirikaVictorIfeanyichukwu Obiora ◽  
EkeAkachukwu Ben ◽  
◽  
...  
Keyword(s):  
Production Process ◽  
Corn Stover ◽  
Bioethanol Production ◽  
Design Expert ◽  
Response Transformation

Optimization of Hydrothermal Pretreatment of Lignocellulosic Biomass in the Bioethanol Production Process

ChemSusChem ◽  
2012 ◽  
Vol 6 (1) ◽  
pp. 110-122 ◽  
Author(s):  
Christos K. Nitsos ◽  
Konstantinos A. Matis ◽  
Kostas S. Triantafyllidis
Keyword(s):  
Production Process ◽  
Lignocellulosic Biomass ◽  
Hydrothermal Pretreatment ◽  
Bioethanol Production

Bioethanol production process rheology

2017 ◽  
Vol 106 ◽  
pp. 59-64 ◽  
Author(s):  
E. Oropeza-De la Rosa ◽  
L.G. López-Ávila ◽  
G. Luna-Solano ◽  
D. Cantú-Lozano
Keyword(s):  
Production Process ◽  
Bioethanol Production

scholarly journals Model Based Biomass System Design of Feedstock Supply Systems for Bioenergy Production

2013 ◽  
Author(s):  
Kara G. Cafferty ◽  
David J. Muth ◽  
Jacob J. Jacobson ◽  
Kenneth M. Bryden
Keyword(s):  
Supply Chain ◽  
Corn Stover ◽  
Cellulosic Ethanol ◽  
Supply System ◽  
Cellulosic Biomass ◽  
Systems Dynamics ◽  
Climate Conditions ◽  
Unit Operations ◽  
Supply Systems

Engineering feedstock supply systems that deliver affordable, high-quality biomass remains a challenge for the emerging bioenergy industry. Cellulosic biomass is geographically distributed and has diverse physical and chemical properties. Because of this feedstock supply systems that deliver cellulosic biomass resources to biorefineries require integration of a broad set of engineered unit operations. These unit operations include harvest and collection, storage, preprocessing, and transportation processes. Design decisions for each feedstock supply system unit operation impact the engineering design and performance of the other system elements. These interdependencies are further complicated by spatial and temporal variances such as climate conditions and biomass characteristics. This paper develops an integrated model that couples a SQL-based data management engine and systems dynamics models to design and evaluate biomass feedstock supply systems. The integrated model, called the Biomass Logistics Model (BLM), includes a suite of databases that provide 1) engineering performance data for hundreds of equipment systems, 2) spatially explicit labor cost datasets, and 3) local tax and regulation data. The BLM analytic engine is built in the systems dynamics software package Powersim™. The BLM is designed to work with thermochemical and biochemical based biofuel conversion platforms and accommodates a range of cellulosic biomass types (i.e., herbaceous residues, short-rotation woody and herbaceous energy crops, woody residues, algae, etc.). The BLM simulates the flow of biomass through the entire supply chain, tracking changes in feedstock characteristics (i.e., moisture content, dry matter, ash content, and dry bulk density) as influenced by the various operations in the supply chain. By accounting for all of the equipment that comes into contact with biomass from the point of harvest to the throat of the conversion facility and the change in characteristics, the BLM evaluates economic performance of the engineered system, as well as determining energy consumption and green house gas performance of the design. This paper presents a BLM case study delivering corn stover to produce cellulosic ethanol. The case study utilizes the BLM to model the performance of several feedstock supply system designs. The case study also explores the impact of temporal variations in climate conditions to test the sensitivity of the engineering designs. Results from the case study show that under certain conditions corn stover can be delivered to the cellulosic ethanol biorefinery for $35/dry ton.

The effect of cassava-based bioethanol production on above-ground carbon stocks: A case study from Southern Mali

Energy Policy ◽  
2012 ◽  
Vol 41 ◽  
pp. 575-583 ◽  
Author(s):  
Laura Vang Rasmussen ◽  
Kjeld Rasmussen ◽  
Torben Birch-Thomsen ◽  
Søren B.P. Kristensen ◽  
Oumar Traoré
Keyword(s):  
Carbon Stocks ◽  
Bioethanol Production

Implementation of six sigma DMAIC for improvement of production process: A case study

2021 ◽  
Author(s):  
David Nasrun ◽  
Julianus Hutabarat ◽  
Fuad Ahmadi
Keyword(s):  
Production Process ◽  
Six Sigma

MANAJEMEN OPERASI DAKWAH:INVESTIGASI EKSPLANATORI PADA PROGRAM KHUTBAH JUMAT DI MASJID AL-FALAH SURABAYA

2019 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
A. Faiz Khudlari Thoha ◽  
Reka Gunawan ◽  
Bambang Subandi
Keyword(s):  
Data Collection ◽  
Production Process ◽  
Selection Mechanism ◽  
Final Design ◽  
Depth Interviews

ABSTRACTThis study aims to provide an overview of the strategy and management of the Friday Khutbah production process at the Al-Falah Mosque in Surabaya as its object. The method used by researchers in this research is a case study with data collection procedures using in-depth interviews, observation, and documentation. So that researchers can explore the phenomenon of the object of research in detail and depth. The findings that occur in the field show results that are sharpened by descriptive descriptions of several categories of production. First, the process of determining the idea of the Friday sermon program at Al-Falah Mosque. Second, for the selection mechanism for Friday sermons at Al-Falah Mosque. Third, the design of the Friday sermon program at Al-Falah Mosque. Fourth, testing and evaluating the Friday sermon program at Al-Falah Mosque. Fifth, the final design of the Friday sermon program at Al-Falah Mosque.ABSTRAKPenelitian ini ditujukan untuk memberikan gambaran mengenai strategi dan manajemen proses produksi khutbah Jum’at di Masjid Al-Falah Surabaya sebagai objeknya.  Metode yang digunakan oleh peneliti dalam penelitian ini ialah studi kasus dengan prosedur pengumpulan data menggunakan wawancara secara mendalam, observasi, dan dokumentasi. Sehingga peneliti dapat menggali fenomena pada objek penelitian secara rinci dan mendalam. Temuan yang terjadi di lapangan menunjukkan hasil yang dipertajam dengan uraian deskriptif mengenai beberapa kategori produksi khubah. Pertama,  proses penentuan gagasan  program khutbah Jum’at di Masjid Al-Falah. Kedua, untuk mekanisme  seleksi program khutbah Jum’at di Masjid Al-Falah. Ketiga, desain program khutbah Jum’at di Masjid Al-Falah. Keempat, pengujian dan evaluasi program khutbah Jum’at di Masjid Al-Falah. Kelima, desain akhir program khutbah Jum’at di Masjid Al-Falah. 

scholarly journals Environmental impact assessment of tofu production process: case study in SME Sugihmanik, Grobogan

2021 ◽  
Vol 894 (1) ◽  
pp. 012004
Author(s):  
S Hartini ◽  
B S Ramadan ◽  
R Purwaningsih ◽  
S Sumiyati ◽  
M A A Kesuma
Keyword(s):  
Environmental Impact ◽  
Production Process ◽  
Wastewater Treatment Plants ◽  
Impact Category ◽  
Threshold Value ◽  
Frying Process ◽  
Good Taste ◽  
Water Pumps ◽  
The Impact

Abstract Tofu contains various substances that are very good when consumed to improve people’s nutrition. In addition, tofu also has good taste. The problem is that the tofu production process produces products and non-product outputs in the form of waste that is very dangerous if directly disposed of in the environment. The BOD5 content of tofu small and medium-sized enterprises (SMEs) in Sugihmanik Village ranged from 3,667-4,933 mg/L and COD 7,668-9,736 mg/L. At the same time, the TSS values ranged from 701-1,189 mg/L. The BOD5 value in the river water content is 367 mg/L. It greatly exceeds the set Threshold Value. This study aims to measure the environmental impact using Life Cycle Assessment (LCA). LCA can identify the impact of each activity based on the impact category to identify the processes that contribute significantly to damaging the environment. This study found that the cooking and frying process had the highest impact, where the climate change category was the largest. Wastewater treatment plants, biogas from the biodigester as a substitute for electricity for water pumps, rice husks, and corn cobs are expected to reduce environmental impacts. The first section in your paper

scholarly journals A Factory Analysis on the Proportion of Defects Reduction in The Animal Feed Pellet Production Process using Design of Experiment Analysis

2019 ◽  
Vol 3 (2) ◽  
pp. 26-33
Author(s):  
Keyword(s):  
Production Process ◽  
Failure Modes ◽  
Animal Feed ◽  
Fractional Factorial ◽  
Pareto Chart ◽  
Manufacturing Defects ◽  
Root Cause ◽  
Pellet Production ◽  
Feed Pellet

The aim of this research is to reduce a number of defects during a feed pellet production process to improve customer satisfaction. A factory case study produces the feed pellets for several species such as food for pigs, chickens, and ducks. Production data from January to June 2017 manufacturing found that the manufacturing defects rate were about 3.32%. The data showed that the overall defects originated from different problems; 1) cracked or broken food; 2) high humidity; 3) distorted of product color; and 4) an ingredient error, respectively. Statistical methods, design analysis, and cause analysis techniques e.g. the Ishikawa diagram, Pareto chart, and FMEA (Failure Mode and Effects Analysis) were applied to help the factory to identify the main root cause of the defects and the potential failure modes of the factory case study. Due to an increasing number of complaints, this study only concentrated on the duck feed pellet production process. The study was divided into two parts: finding the root cause of the defects, which are the most critical factors for further analysis, and applying an experimental statistical design to decrease the number of defects during the duck pellet production process. The problem with cracked or broken pellets (dust) was found as the main factor affecting the production defects. Results showed that the main factors contributing to the amount of dusk in the duck feed productions came from three factors as follow: the thickness of die, distance between compression rollers and die, and time and temperature of mill machine needed during compressing the duck feed pellet production. Both the fractional factorial experimental design, 2k and 3k, were used to evaluate the influence of each factor on the duck feed production defects. The results by using the factorial 2K experimental show that the most important variable in duck pellets production were thickness of the die, distance between compression rollers and die, and temperature of mill machine needed during compressing the duck feed pellet production while time was not an interaction effect in this problem. The 3k factorial design was used to determine the interaction effects for the duck pellets production process. The experiment was ran and tested for 3 months. The final outcomes showed a significant reduction of defects from 2.51% to 1.09% (P<0.01). The results indicated that thickness -20 mm. of the die, 0.05 mm of distance between compression rollers and die, and 95 degree Celsius of temperature of mill machine needed during compressing the duck feed pellet production would be the most appropriate set of pelleting machine for the duck production process case study.

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