scholarly journals Technical-economic analysis of different lighting systems for broiler poultry

2016 ◽  
Vol 36 (2) ◽  
pp. 242-252 ◽  
Author(s):  
Priscilla A. P. Ribeiro ◽  
Tadayuki Yanagi Junior ◽  
Joaquim P. da Silva ◽  
Sílvia de N. M Yanagi ◽  
Renato S. Campos
Keyword(s):  
Economic Analysis ◽  
Power Consumption ◽  
Net Present Value ◽  
Economic Feasibility ◽  
Financial Mathematics ◽  
Present Value ◽  
Artificial Lighting ◽  
Fluorescent Lamps ◽  
Lighting Systems ◽  
Incandescent Lamps

ABSTRACT Broiler poultry is highly dependent on artificial lightening. Power consumption costs of artificial lighting systems is the second largest expense related to broiler industry, second only to feed expenses. Therefore, the current study focused to analyze technical and economic feasibility of replacing incandescent lamps already used in aviaries with other lamp types. Costs related to power consumption, implementation and maintenance of the lighting systems were evaluated with the aid of financial mathematics using net present value, return over investment and payback. Systems composed of six lamp types were analyzed in two different configurations to meet the minimum illuminance of 5 and 20 lux and for use in conventional sheds and dark house. The lamps tested were incandescent (LI) of 100 W, compact fluorescent (CFL) of 34 W, mixed (ML) 160 W sodium vapor (SVL) of 70 W, tubular fluorescent T8 (TFL T8) of 40 W and tubular fluorescent T5 (TFL T5) of 28 W. For the systems tested, it was found that the tubular fluorescent lamps T8 and T5 showed the best results of technical and economic feasibility.

scholarly journals Economic analysis of sustainable management of candeia

CERNE ◽  
2010 ◽  
Vol 16 (3) ◽  
pp. 335-345 ◽  
Author(s):  
Antonio Donizette de Oliveira ◽  
Ivonise Silva Andrade Ribeiro ◽  
José Roberto Soares Scolforo ◽  
José Márcio de Mello ◽  
José Luiz Pereira de Rezende
Keyword(s):  
Forest Management ◽  
Economic Analysis ◽  
Sustainable Management ◽  
Net Present Value ◽  
Oil Production ◽  
Planning Horizon ◽  
Economic Feasibility ◽  
Present Value ◽  
Production Methods ◽  
The Interest Rate

Candeia wood (Eremanthus erythropappus) is widely used for production of essential oil and its active ingredient, alpha-bisabolol, is consumed by both the cosmetics and pharmaceutical industry. This study aimed to determine the productivity and operating costs associated with exploration, transportation and commercialization of candeia timber obtained from sustainable management systems and used for oil production; to determine the gross income or revenue obtained from the sale of candeia timber; to analyze the economic feasibility of sustainable management of candeia. For the economic analysis, Net Present Value, Net Present Value over an infinite planning horizon, and Average Cost of Production methods were used. Results indicated that the most significant costs associated with candeia forest management involve transportation and exploration. Together they account for 64% of the total management cost. Candeia forest management for oil production is economically feasible, even in situations where the interest rate is high or timber price drops to levels well below currently effective prices. As far as candeia forest management is concerned, shorter harvest cycles allow higher profitability. However, even in situations where the harvest cycle is relatively long (30 years), the activity is still economically feasible.

Water and Power Consumption, Ethanol Production and CO2 Emissions: High-Scale Sugarcane-Based Biorefinery Toward Neutrality in Carbon

2019 ◽  
Vol 965 ◽  
pp. 87-95
Author(s):  
Raquel de Freitas Dias ◽  
Hudson Bolsoni Carminati ◽  
Ofélia de Queiroz Fernandes Araújo ◽  
José Luiz de Medeiros
Keyword(s):  
Economic Analysis ◽  
Power Consumption ◽  
Ethanol Production ◽  
Capital Investment ◽  
Net Present Value ◽  
Economic Feasibility ◽  
Process Data ◽  
High Scale ◽  
Cogeneration System ◽  
Fixed Capital Investment

The present work assesses water and power consumption, ethanol production and CO2 emissions in order to evaluate the technical and economic feasibility of a high-scale sugarcane-based biorefinery and propose a scenario of full carbon and capture system, so the complex could become a sustainable carbon withdrawer from the atmosphere. This work is performed with the aid of professional software for a rigorous mass and energy balances simulation to achieve process data for plant technical and economic analysis. The combustion of sugarcane bagasse is the only source of energy of the plant, which provides steam for the distillery and generates electricity through cogeneration system. The ethanol production from sugars fermentation produces CO2 which, jointly with the CO2 from combustion, is released directly into the atmosphere contributing to global warming. Results demonstrate that for processing capacity of 1,000 t/h of sugarcane, the plant emits 0.7 tCO2 per ton of sugarcane, with net water consumption of 3,600 m3/h as make-up water to replace blowdown and evaporation losses in the cooling tower. The cogeneration system generates 320MW of net power for exportation as electricity. The economic analysis reveals a fixed capital investment of 910MMUSD and a net present value of 378MMUSD considering as revenues the ethanol produced and the electricity from cogeneration at an annual discount rate of 10%.

scholarly journals Economic feasibility for selecting wastewater treatment systems

2018 ◽  
Vol 78 (12) ◽  
pp. 2518-2531 ◽  
Author(s):  
Andreia Santos Goffi ◽  
Flavio Trojan ◽  
José Donizetti de Lima ◽  
Mauro Lizot ◽  
Shirley Suellen Thesari
Keyword(s):  
Wastewater Treatment ◽  
Economic Analysis ◽  
Net Present Value ◽  
Economic Cost ◽  
Economic Feasibility ◽  
Present Value ◽  
Ideal System ◽  
Electre Tri ◽  
Complex Decision ◽  
The Ideal

Abstract The ideal configuration of wastewater treatment system (WTS) for attending cities specificities has become a complex decision, due to the fact that there are several available technologies, and a diversity of characteristics presented in the scenario of each city. Considering the importance of economic analysis, especially in developing countries, this work aims to demonstrate the economic feasibility considering cost-related indicators for the ideal WTS selection for specific features in these cities. Based on a literature review, 37 main WTS and two economic cost-related indicators (Net Present Value and Annualized Net Present Value) were considered. First of all, using a multi-criteria analysis these WTS were grouped in classes using the ELECTRE TRI method, based on criteria related to efficiency, and the weights were defined by appointments from research specialists in the literature appointments. The economic analysis was performed using the Monte Carlo Simulation (MCS) method, which has been applied specifically to each WTS class, thus generating a framework of economic viability for this context. The WTS with low and high costs were appointed, considering the development level in each applied scenario. This work contributes to expanding the WTS study horizons to select an ideal system, considering the economic aspect.

scholarly journals Studi Kelayakan Ekonomis Rencana Pembangunan Pelabuhan Sungai Liong Desa Berancah Kabupaten Bengkalis

2019 ◽  
Vol 3 (2) ◽  
pp. 146
Author(s):  
Nur Rahmani ◽  
Akmal Lazuardy
Keyword(s):  
Net Present Value ◽  
Payback Period ◽  
Economic Feasibility ◽  
Rate Of Return ◽  
Cost Ratio ◽  
Internal Rate Of Return ◽  
Benefit Analysis ◽  
Present Value ◽  
The Government ◽  
The Cost

The fish shelter port (TPI) is a need that needs to be prepared by local village officials and the government for every coastal village in Bengkalis Regency. This research was conducted in the Berancah village of Bantan District. The analysis in this study describes the economic feasibility mathematically for the construction of a fish storage port (TPI) by calculating the cost ratio (B / C ratio) benefit analysis, payback period (PP), net present value (NPV), and internal rate of return ( IRR). The results obtained from the NPV value (3,661,267,645), BCR value (0.943), IRR value of 10.01%, and PP are in the period of 30 years. Taken as a whole by standardizing the calculations, it can be concluded that the planned construction of a fish shelter in Berancah village is considered not economically feasible, but economic analysis is not merely a benchmark for feasibility, reviewed for the future many benefits will be received by the community around the location of the development plan so that it can improve the welfare of the community in Berancah village.

scholarly journals Sustainability and feasibility assessments of nanobubble aeration technology in economic-socio environment of Penaeus vannamei shrimp farming

2021 ◽  
Vol 33 ◽  
pp. 05005
Author(s):  
Lily Susanti ◽  
Suyud Warno Utomo ◽  
Noverita Dian Takarina
Keyword(s):  
Net Present Value ◽  
Ammonia Nitrogen ◽  
Payback Period ◽  
Economic Feasibility ◽  
Shrimp Farming ◽  
Penaeus Vannamei ◽  
Present Value ◽  
Community Members ◽  
The Social ◽  
Total Ammonia

Penaeus vannamei shrimp farming in Indonesia is faced with several challenges in the environmental, economic, and social aspects. Therefore, this study aims to assess the benefits of novel nanobubble aeration systems for the ecosystem, businesses, and communities. This is an experimental study conducted by comparing P. vannamei post larva 10 reared at a density of 2000 inds./L in a pond treated with nanobubble and without treatments (control). Furthermore, the Net Present Value (NPV) and payback period were calculated to assess the economic feasibility of nanobubble, while community interviews were used for the social sectors. Based on the results, environmental wastes of shrimp farming in form of total ammonia nitrogen (TAN) were reduced by 9% from 2.58 mg/l (95%CI: 0,91, 4,25) in control compared to 2.35 mg/l (95%CI: 0,86, 3,84) in treatment. Furthermore, the revenues from post larva sales for five years and nanobubble investment costs showed that the estimated NPV was IDR 64,824,374 with a payback period of 1.7 years. The interviews on traditional shrimp farming showed that 61.1% to 72.2% of community members agreed on the use of nanobubble aeration to support livelihoods. Therefore, the use of nanobubbles is feasible to support sustainable P. vannamei farming.

scholarly journals VIABILIDADE ECONÔMICA DA PRODUÇÃO DE CARVÃO VEGETAL EM DOIS SISTEMAS PRODUTIVOS

FLORESTA ◽  
2014 ◽  
Vol 44 (1) ◽  
pp. 143 ◽  
Author(s):  
Aylson Costa Oliveira ◽  
Thiago Taglialegna Salles ◽  
Bárbara Luísa Corradi Pereira ◽  
Angélica De Cássia Oliveira Carneiro ◽  
Camila Soares Braga ◽  
...  
Keyword(s):  
Economic Analysis ◽  
Net Present Value ◽  
Production Systems ◽  
Planning Horizon ◽  
Economic Viability ◽  
Present Value ◽  
Charcoal Production ◽  
Average Annual Production ◽  
The Cost ◽  
Benefit Cost

O objetivo deste trabalho foi analisar a viabilidade econômica da produção de carvão vegetal em dois sistemas produtivos: oito fornos de superfície acoplados a uma fornalha para queima de gases e dez fornos do tipo “rabo-quente” sem sistema de queima de gases. Para análise econômica, definiu-se uma produção anual média igual a 1.571 metros cúbicos de carvão (mdc) e horizonte de planejamento de 12 anos, sendo propostos 2 cenários. No primeiro cenário, após a colheita da madeira, realiza-se o plantio de uma nova floresta, permanecendo o custo da madeira constante em todo o planejamento; no segundo cenário, após a colheita, considerou-se a condução da brotação, reduzindo os custos na 2ª rotação e consequentemente os custos da madeira. A análise econômica foi realizada através da determinação dos seguintes indicadores: Valor Presente Líquido (VPL), Valor Anual Equivalente (VAE), Razão Benefício/Custo (B/C) e Lucratividade. Os indicadores calculados demonstraram a viabilidade dos dois sistemas produtivos avaliados em ambos os cenários propostos, porém o sistema fornos-fornalha apresentou melhores valores para os indicadores. Conclui-se que a produção de carvão vegetal nos sistemas avaliados foram viáveis economicamente, com o sistema fornos-fornalha gerando maior lucro ao produtor de carvão.Palavras-chave: Fornos de alvenaria; análise determinística; valor presente líquido. Abstract Economic viability of charcoal production in two production systems. The objective of this study was to analyze the economic viability of charcoal production in two conversion technologies: eight surface kilns coupled to a furnace for burning gases (kilns-furnace system) and ten "rabo-quente" or traditional charcoal kilns without burning gases system. An average annual production of 1571 cubic meters of charcoal (mdc) was used to perform the economic analysis. A planning horizon of 12 years and two scenarios were proposed. In the first scenario, after harvesting the wood, the planting of a new forest was performed, and the cost of wood remained constant throughout the planning horizon. In the second scenario, after the harvest, the conduction of shooting was considered, which reduced costs in the second rotation and consequently the cost of wood. The economic analysis was performed by determining the following indicators: Net Present Value (NPV), Equivalent Annual Value (EAV) and Benefit - Cost Reason (B/C). Calculated indicators demonstrated the viability of producing charcoal in the two production systems in both scenarios proposed, but kilns-furnace system presented better values. As conclusion, production of charcoal in the evaluated systems were economically viable. Kilns-furnace system was able to generate more profit to charcoal producer.Keywords: Kilns; deterministic analysis; net present value.

Cost Benefit Analysis of Industrial Noise Regulation

1995 ◽  
Vol 6 (1) ◽  
pp. 105-124 ◽  
Author(s):  
Stephen Holland ◽  
Jean Cross
Keyword(s):  
Occupational Health ◽  
Economic Analysis ◽  
Net Present Value ◽  
Cost Benefit Analysis ◽  
Health And Safety ◽  
Cost Benefit ◽  
Occupational Health And Safety ◽  
Cost Ratio ◽  
Regulatory Change ◽  
Present Value

This paper examines the application of the techniques of economic analysis to occupational health and safety regulations using occupational noise as an example. The paper explores the extent to which economic impact studies are practically feasible and useful in relation to occupational health and safety legislation. Six studies of the same regulatory change, from four countries were analysed. The results of these studies ranged from a strongly negative to a significantly positive net present value, depending on the assumptions made. The factor which had the greatest influence on these differences was the way in which benefits are costed. It is shown that in the field of Occupational Health and Safety, economic analysis does not produce a single valid net present value or benefit to cost ratio on which a decision to legislate can sensibly be based. However the analysis can, if properly directed provide useful information on factors which will enable organisations to optimise their response to the regulation and authorities to introduce regulations in a way which does not bear with unreasonable weight on specific sectors of the community.

scholarly journals Economic Feasibility for Recycling of Waste Crystalline Silicon Photovoltaic Modules

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Idiano D’Adamo ◽  
Michela Miliacca ◽  
Paolo Rosa
Keyword(s):  
Net Present Value ◽  
Crystalline Silicon ◽  
Economic Feasibility ◽  
Environmental Benefits ◽  
Baseline Scenario ◽  
Present Value ◽  
Photovoltaic Modules ◽  
Pv Module ◽  
Global Power ◽  
The Usa

Cumulative photovoltaic (PV) power installed in 2016 was equal to 305 GW. Five countries (China, Japan, Germany, the USA, and Italy) shared about 70% of the global power. End-of-life (EoL) management of waste PV modules requires alternative strategies than landfill, and recycling is a valid option. Technological solutions are already available in the market and environmental benefits are highlighted by the literature, while economic advantages are not well defined. The aim of this paper is investigating the financial feasibility of crystalline silicon (Si) PV module-recycling processes. Two well-known indicators are proposed for a reference 2000 tons plant: net present value (NPV) and discounted payback period (DPBT). NPV/size is equal to −0.84 €/kg in a baseline scenario. Furthermore, a sensitivity analysis is conducted, in order to improve the solidity of the obtained results. NPV/size varies from −1.19 €/kg to −0.50 €/kg. The absence of valuable materials plays a key role, and process costs are the main critical variables.

scholarly journals Análise financeira de sistemas de produção para novilhas em pastagem de Brachiaria brizantha

2015 ◽  
Vol 64 (246) ◽  
pp. 123-130 ◽  
Author(s):  
A. A. C. O. Peres ◽  
A. A. Santos ◽  
C. A. B. Carvalho ◽  
N. Brandalise
Keyword(s):  
Production System ◽  
Financial Risk ◽  
Net Present Value ◽  
Production Systems ◽  
Cash Flows ◽  
Economic Feasibility ◽  
Present Value ◽  
Savings Accounts ◽  
Return On Capital ◽  
Mineral Mixture

The objective was to determine the economic feasibility and financial risk of different production systems for dairy heifers grazing on Xaraes pallisadgrass pasture, during the year, with roughage supplementation of sugarcane, during the autumn-winter and the supply of mineral mixture (commercial and selective). Each production system was characterized and quantified in accordance with the administrative and livestock realized during the period February 2006 to March 2008. The cash flows were constructed for production system in a horizon of 12 years, being applied discount rates of 6, 10, 14, 18 and 22 % per year. About the cash flows were determined economic indicators of profitability: net present value and internal rate of return. The sensitivity and financial risk analyzes were realized. The production systems showed positive net present value at a discount rate of 14 % per year, which reflects the return on capital invested, compared to savings accounts. The trading price of the heifer is the item of greatest influence on economic results. The production systems had low financial risk of becoming unviable, given the price fluctuations that occurred in the market. The production systems are financial viable to exploration.

scholarly journals Ways of Performance Improvement in Petrochemical Enterprise

2018 ◽  
pp. 345-349
Keyword(s):  
Performance Improvement ◽  
Lean Manufacturing ◽  
Petrochemical Industry ◽  
Net Present Value ◽  
Financial Mathematics ◽  
Mathematics Methods ◽  
Present Value ◽  
Sales Revenue ◽  
Net Profit ◽  
Petrochemical Enterprise

The paper considers the problems of performance improvement in petrochemical enterprises. The possibilities of applying financial mathematics methods to assess the personnel efficiency are explored. The theoretical aspects of lean production which affect the growth of personnel efficiency are studied and practical measures for their implementation are developed. Economic calculations have been made and the change in sales revenue, net profit, net present value due to the introduction of elements of lean manufacturing in the petrochemical industry is assessed. Practical-oriented approaches to the differentiation of ways which determine the companies’ performance and serve as the basis for management decisions are formulated.

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