scholarly journals Techno-economic aspects and problems of the rotary rowing units introduction in the modernization and construction of ships (on the example of projects 1809 and CNF11CPD)

2021 ◽  
pp. 81-94
Author(s):  
Vladimir I. Samuleev Samuleev ◽  
Yuri P. Mukhin Mukhin
Keyword(s):  
Economic Analysis ◽  
Fuel Economy ◽  
Large Scale ◽  
Physical Simulation ◽  
Maritime Transport ◽  
Economic Aspects ◽  
Technical And Economic Analysis ◽  
Matlab Package ◽  
Technical Features ◽  
The Cost

The article contains a detailed analysis of studies related to the use of existing and new principles of fuel economy, and reducing the cost of re-equipment and operation of vessels of the above projects. The authors of the article did not set out to analyze the technical features of these projects. Only by linking to these projects, the analysis was done for the entire fleet of this type as a whole. A technical and economic analysis of the characteristics, modeling of the main and auxiliary installations in the Matlab package, providing fuel economy on the example of ships of projects 1809 and CNF11CPD, is carried out. Then a physical simulation was carried out. As a result of testing a vessel with a rotary rowing electric installation (RSEU), a qualitative analysis of the data obtained was carried out, conclusions were drawn that allow us to judge the possibility of large-scale use of such installations in maritime transport.

scholarly journals Dynamic Reconfiguration Systems for PV Plant: Technical and Economic Analysis

Energies ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 2004
Author(s):  
Giuseppe Schettino ◽  
Filippo Pellitteri ◽  
Guido Ala ◽  
Rosario Miceli ◽  
Pietro Romano ◽  
...  
Keyword(s):  
Economic Analysis ◽  
Hot Spots ◽  
Dynamic Reconfiguration ◽  
Costs And Benefits ◽  
Hardware Complexity ◽  
Partial Shading ◽  
Security Issues ◽  
Technical And Economic Analysis ◽  
Incentive Policies ◽  
The Cost

Solar plants suffer of partial shading and mismatch problems. Without considering the generation of hot spots and the resulting security issues, a monitoring system for the health of a PV plant should be useful to drive a dynamic reconfiguration system (DRS) to solve bottlenecks due to different panels’ shading. Over the years different DRS architectures have been proposed, but no suggestions about costs and benefits have been provided. Starting from technical subjects such as differences of the topologies driving the hardware complexity and number of components, this paper identifies the cost of DRS and its lifetime, and based on these issues it provides an economic analysis for a 6 kWp PV plant in different European Union countries, in which the dissimilar incentive policies have been considered.

Technical Economic Analysis of Remanufacturing of Large-Scale Food Processing Equipments

2011 ◽  
Vol 201-203 ◽  
pp. 1033-1036
Author(s):  
De Yuan Li ◽  
Wei Li
Keyword(s):  
Economic Growth ◽  
Life Cycle ◽  
Economic Analysis ◽  
Food Processing ◽  
Life Cycle Cost ◽  
Large Scale ◽  
Technical And Economic Analysis ◽  
Design Requirements ◽  
Economic Growth Mode ◽  
Whole Life Cycle

Remanufacturing of food processing equipments not only follows the demand of transforming economic growth mode, but also has great significance to China sustainable development that needs less investment and gets higher benefit. The remanufacturing approach of large-scale food processing equipments is analyzed in design requirements, including hygiene requirements, energy consumption requirements, reliability requirements and man - machine integration requirements. Then, technical and economic analysis of the remanufacturing is carried out through establishing the profit objective function: Whole life cycle profits Ez= R(multiple life cycle revenue)- C(whole life cycle cost). According to economic evaluation of life cycle and multi-life-cycle, remanufacturing of LEF can get best enterprise benefits and enhance the competitive power of enterprises.

scholarly journals Techno-economic analysis: Preliminary assessment of pyrolysis oil production costs and material energy balance associated with a transportable fast pyrolysis system

BioResources ◽  
2010 ◽  
Vol 6 (1) ◽  
pp. 34-47
Author(s):  
Phil Badger ◽  
Scott Badger ◽  
Maureen Puettmann ◽  
Philip Steele ◽  
Jerome Cooper
Keyword(s):  
Economic Analysis ◽  
Life Cycle Cost ◽  
Large Scale ◽  
Fast Pyrolysis ◽  
Product Yield ◽  
Production Costs ◽  
Pyrolysis Oil ◽  
Bio Oil ◽  
Pine Wood Chips ◽  
The Cost

A techno-economic analysis was performed for a 100 dry-ton/day (90,719 kg/day) fast pyrolysis transportable plant. Renewable Oil International® LLC provided the life cycle cost of operating a 100 dry-ton/day fast pyrolysis system using southern pine wood chips as feedstock. Since data was not available from an actual large-scale plant, the study examined data obtained from an actual 15 dry-ton/day pilot plant and from several smaller plants. These data were used to obtain base figures to aid in the development of models to generate scaled-up costs for a larger 100 dry-ton/day facility. Bio-oil represented 60% of mass of product yield. The cost for the bio-oil from fast pyrolysis was valued at $0.94/gal. Energy cost bio-oil and char was valued at $6.35/MMBTU. Costs associated with purchasing feedstocks can drastically influence the final cost of the bio-oil. The assumed cost of feedstocks was $25/wet ton or $50/dry ton. This paper is part of a larger study investigating the economic and environmental impacts for producing bio-oil / biocide wood preservatives.

A technical and economic analysis of three large scale biomass combustion plants in the UK

2013 ◽  
Vol 112 ◽  
pp. 396-404 ◽  
Author(s):  
David R. McIlveen-Wright ◽  
Ye Huang ◽  
Sina Rezvani ◽  
David Redpath ◽  
Mark Anderson ◽  
...  
Keyword(s):  
Economic Analysis ◽  
Large Scale ◽  
Biomass Combustion ◽  
Technical And Economic Analysis ◽  
The Uk

scholarly journals Comparative Technical and Economic Analysis of Organic and Conventional Soybean Production in Greece

2019 ◽  
Vol 76 (1) ◽  
pp. 79
Author(s):  
Stella KARIDOGIANNI ◽  
Ioannis ROUSSIS ◽  
Konstantinos TSIMPOUKAS ◽  
Panayiota PAPASTYLIANOU ◽  
Dimitrios BILALIS
Keyword(s):  
Economic Analysis ◽  
Cropping System ◽  
Soybean Production ◽  
Organic Cultivation ◽  
Alternative Crop ◽  
Technical And Economic Analysis ◽  
Net Profit ◽  
Quality Product ◽  
The Cost

Soybean is considered to be an alternative crop and its cultivation could offer an innovative and high-quality product. A case study was implemented on an existing farm to examine the prospects of soybean production in Greece and to evaluate the economic outcomes of the crop cultivation under organic and conventional cropping system. The economic analysis showed that the cost of conventional soybean production was 0.37 €/kg, while the cost of organic soybeans was 0.50 €/kg. The organic and conventional soybean selling prices were 0.6 and 0.4 €/kg, respectively. In addition, the financial performance of the farm improved after the introduction of organic soybean crop, where the net profit increased by 26.3% compared to the initial profit of the farm, while the increase in the conventional was less at 10%. Soybean is a relatively new crop in Greece with high net profit, especially under organic cultivation mainly due to lower inflow of external imports.

Cost- und Monitoring-Projekt: Zwei neue forstliche Meinungsumfragen im Vergleich | The Cost- and Monitoring-Projects: A Comparison of Two New Forestry Opinion Polls

2000 ◽  
Vol 151 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Stephan Wild-Eck ◽  
Willi Zimmermann
Keyword(s):  
Large Scale ◽  
Forest Policy ◽  
Forest Economics ◽  
Positive Attitudes ◽  
Federal Institute ◽  
Swiss Confederation ◽  
Institute Of Technology ◽  
The Cost ◽  
Near Future ◽  
Opinion Polls

Two large-scale surveys looking at attitudes towards forests, forestry and forest policy in the second half ofthe nineties have been carried out. This work was done on behalf of the Swiss Confederation by the Chair of Forest Policy and Forest Economics of the Federal Institute of Technology (ETH) in Zurich. Not only did the two studies use very different methods, but the results also varied greatly as far as infrastructure and basic conditions were concerned. One of the main differences between the two studies was the fact that the first dealt only with mountainous areas, whereas the second was carried out on the whole Swiss population. The results of the studies reflect these differences:each produced its own specific findings. Where the same (or similar) questions were asked, the answers highlight not only how the attitudes of those questioned differ, but also views that they hold in common. Both surveys showed positive attitudes towards forests in general, as well as a deep-seated appreciation ofthe forest as a recreational area, and a positive approach to tending. Detailed results of the two surveys will be available in the near future.

Economic Aspects of Mustard Cultivation in Lakhimpur Kheri District of Uttar Pradesh

2020 ◽  
pp. 520-523
Keyword(s):  
Average Cost ◽  
Uttar Pradesh ◽  
Net Income ◽  
Economic Aspects ◽  
Positive Relation ◽  
Input Output ◽  
Output Ratio ◽  
Gross Income ◽  
Average Size ◽  
The Cost

The results revealed that on an overall average size of landholding was estimated to be 0.97 ha. The total cultivated area at all categories of sample farms were found to be irrigated. Overall average, cost of cultivation was estimated `27819.43 per ha. The cost of cultivation showed positive relation with size of holding. The cost of cultivation was highest on medium farms (`32549.25) followed by small (`31528.40 and marginal (`29171.74), respectively. Overall average, cost of production was estimated `2446.44 per hectare. On an average input-output ratio on the basis Costs A1/A2, B1, B2, C1, and C2 were recorded 1:2.86, 1:2.77, 1:1.91, 1:1.89 and 1:1.46, respectively. On the basis of Cost C2 input-output ratio was highest on marginal farms (1:1.47) followed by small (1:1.44) and medium (1:1.43), respectively. Overall average, net income and gross income were found `9859.33 and 40028.69 per ha, respectively.

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