scholarly journals The Cost-Efficiency Analysis of a System for Improving Fine-Coal Combustion Efficiency of Power Plant Boilers

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4295
Author(s):  
Wilhelm Jan Tic ◽  
Joanna Guziałowska-Tic
Keyword(s):  
Cost Efficiency ◽  
Coal Combustion ◽  
Combustion Efficiency ◽  
Efficiency Analysis ◽  
Hard Coal ◽  
Boiler Plant ◽  
Fine Coal ◽  
Payback Time ◽  
The Cost ◽  
Combustion Of Solid Fuels

Hard coal is widely used as a source of energy, and a number of catalysts have been developed to minimize the noxious impact of this fuel on combustion. This paper presents the cost-efficiency analysis of a system for improving the combustion of solid fuels, especially fine coal, in power boilers. The system is provided with a control and supervision device. It has been designed for better accuracy in controlling the boiler operating parameters, with a view to improving combustion efficiency due to the use of catalysts. The tests were carried out for system capacities ranging from 3 to 100 MW. It was found that, depending on the size of the system in the range of 3–100 MW, savings in the fuel consumption ranged from 2% to 8% due to the implementation of novel solutions in the boiler plant operation and from 2 to 6% due to the use of the combustion catalysts. Apart from boosting energy efficiency, the use of catalysts and the efficiency-boosting system resulted in the costs of overhauls being cut by about 20%. The payback time depends on system capacities, and it is between 6.75 and 1.74 years for capacities ranging from 3 to 75 MW and 2.0 years for a 100 MW plant.

Ranking units and determining dominance relations in the cost efficiency analysis

2015 ◽  
Vol 49 (5) ◽  
pp. 879-896 ◽  
Author(s):  
Roza Azizi ◽  
Reza Kazemi Matin ◽  
Reza Farzipoor Saen
Keyword(s):  
Cost Efficiency ◽  
Efficiency Analysis ◽  
Dominance Relations ◽  
The Cost

scholarly journals Cost-efficiency analysis of a runoff detention reservoir with integrated hydraulic and structural dimensioning

RBRH ◽  
2018 ◽  
Vol 23 (0) ◽  
Author(s):  
Victor Santos Galvão Baptista ◽  
Adriano Rolim da Paz
Keyword(s):  
Cost Efficiency ◽  
Control Level ◽  
Concrete Structures ◽  
Drainage System ◽  
Efficiency Analysis ◽  
Integrated Analysis ◽  
Technical Standards ◽  
The Cost ◽  
Economic Criteria

ABSTRACT In Brazil, urbanization-dominated imperviousness is prevalent, increasing the incidence and magnitude of floods. An alternative to control this impact is an on-site runoff detention reservoir. The choice of reservoir adopted should ideally combine hydraulic/hydrological and structural/economic criteria, although there is a gap in the literature regarding this type of integrated analysis. In this article, a cost-efficiency analysis is conducted to select a reservoir to control the runoff captured by a roof (4,657 m2) using the Puls method for hydraulic dimensioning and based on technical standards for the design of concrete structures. The results indicate that a decrease of approximately 3% in the theoretically ideal efficiency (100%) of the reservoir provided a 36% drop in cost. Such an alternative is more likely to become attractive and economically viable, with virtually the same benefits to the downstream stormwater drainage system. The analysis of different alternatives induced a decision between the level of control of the reservoir output and the cost that emphasized different aspects, focusing on more than the minimization of the cost or the imposition of a pre-defined control level in an arbitrary way.

scholarly journals A Cost Efficiency Analysis and Mechanism for Dynamic Partially Reconfigurable Computing Systems

2021 ◽  
Author(s):  
David Diaz
Keyword(s):  
Reconfigurable Computing ◽  
Cost Efficiency ◽  
Experimental Tests ◽  
Efficiency Analysis ◽  
Efficiency Factor ◽  
Design Stage ◽  
Computing Systems ◽  
Computing Architecture ◽  
Development Costs ◽  
The Cost

Dynamic Partially Reconfigurable Computing Systems have proven to be useful in environments where a multiplicity of tasks is required. These systems used Dynamic Virtual Components (DVCs) for reconfiguration. However, the computing architecture (dedicated, software, hybrid) of the DVC must be selected during the design stage. In this thesis, a mechanism in which we evaluate and analyze the cost efficiency of a DVC based on a cost efficiency factor (CEF) is proposed. Data centric and stream centric experimental tests were performed and the CEF of a 3D stereo-panoramic augmented reality hybrid DVC was de termined. The results show that development costs and number of units to be produced influence the cost efficiency of a DVC. From the results it is concluded that the CEF can be a useful tool for selecting the computing architecture of a DVC, particularly when only a few units are to be deployed.

scholarly journals Analisis Produktivitas, Keuntungan, dan Efisiensi Biaya Usaha Budidaya Lebah Madu Trigona sp. di Kecamatan Landono Kabupaten Konawe Selatan

2020 ◽  
Vol 5 (3) ◽  
pp. 111
Author(s):  
Ni Putu Arin Pratiwi ◽  
Bahari Abdullah ◽  
Muhammad Arief Dirgantoro
Keyword(s):  
Honey Bee ◽  
Cost Efficiency ◽  
Efficiency Analysis ◽  
Productivity Analysis ◽  
Average Value ◽  
Average Ratio ◽  
Bee Colony ◽  
Profit Analysis ◽  
Quantitative Descriptive ◽  
The Cost

This study aims to determine the productivity of Trigona sp beekeeping, know the benefits of Trigona sp beekeeping and find out the cost efficiency of Trigona sp beekeeping in Landono Subdistrict, Konawe Selatan Regency. This research was conducted in November 2019 to March 2020 using quantitative descriptive methods. Analysis of the data used in this research is productivity analysis, profit analysis, and cost efficiency analysis using the RC ratio. The results obtained, the average value of honey bee productivity in each bee colony produces 1.02 kg of honey, the average profit of Trigona sp beekeeping is Rp5,068,900, - and RC The average ratio of Trigona sp beekeeping is 3.01. RC ratio value> 1 which indicates that the Trigona sp honey beekeeping business is profitable and can be continued. Based on this research it is expected that the Trigona sp bee business can be better known and developed more broadly.

scholarly journals The Cost Efficiency Analysis of JeollaNamdo Food Industry

2015 ◽  
Vol 43 (4) ◽  
pp. 533-544
Author(s):  
Cheng Lin Qing ◽  
JuMong Na ◽  
Seog Ju Chang ◽  
Chang Uk Im
Keyword(s):  
Cost Efficiency ◽  
Food Industry ◽  
Efficiency Analysis ◽  
The Cost

scholarly journals A Cost Efficiency Analysis and Mechanism for Dynamic Partially Reconfigurable Computing Systems

2021 ◽  
Author(s):  
David Diaz
Keyword(s):  
Reconfigurable Computing ◽  
Cost Efficiency ◽  
Experimental Tests ◽  
Efficiency Analysis ◽  
Efficiency Factor ◽  
Design Stage ◽  
Computing Systems ◽  
Computing Architecture ◽  
Development Costs ◽  
The Cost

Dynamic Partially Reconfigurable Computing Systems have proven to be useful in environments where a multiplicity of tasks is required. These systems used Dynamic Virtual Components (DVCs) for reconfiguration. However, the computing architecture (dedicated, software, hybrid) of the DVC must be selected during the design stage. In this thesis, a mechanism in which we evaluate and analyze the cost efficiency of a DVC based on a cost efficiency factor (CEF) is proposed. Data centric and stream centric experimental tests were performed and the CEF of a 3D stereo-panoramic augmented reality hybrid DVC was de termined. The results show that development costs and number of units to be produced influence the cost efficiency of a DVC. From the results it is concluded that the CEF can be a useful tool for selecting the computing architecture of a DVC, particularly when only a few units are to be deployed.

Advances in Cost Frontier Analysis of the Firm

2013 ◽  
pp. 65-88
Author(s):  
C.A. Knox Lovell ◽  
Emili Grifell-Tatjé
Keyword(s):  
Cost Efficiency ◽  
Efficiency Analysis ◽  
Productivity Change ◽  
Frontier Analysis ◽  
Cost Frontier ◽  
Cost Variance ◽  
Standard Cost ◽  
New Directions ◽  
The Cost ◽  
Analytical Frameworks

We study various analytical frameworks relating productivity change to change in the cost structure and cost efficiency of the firm. We begin by motivating a focus on the cost side, and not the revenue side, of the profit objective of the firm. We continue by relating the cost accounting tool of standard cost variance analysis to the economics tool of cost efficiency analysis. We focus on managerially controllable drivers of cost efficiency, including productivity change and its components. We conclude by noting some significant empirical applications of the analysis, by recommending cost efficiency analysis as a valuable tool for benchmarking against the best, and by suggesting some new directions for research.

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