scholarly journals Feasibility Assessment of Two Biogas-Linked Rural Campus Systems: A Techno-Economic Case Study

Processes ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 180 ◽  
Author(s):  
Liqin Zhu ◽  
Congguang Zhang
Keyword(s):  
Middle School ◽  
Rural Areas ◽  
Net Present Value ◽  
Cost Effective ◽  
Economic Feasibility ◽  
Operating Costs ◽  
Pollution Reduction ◽  
Feasibility Assessment ◽  
Biomass Resources

The principle of sustainable development is becoming more and more prominent in various schools, and the eco-campus in rural areas often has more room for display. The identification and assessment of cost-effective biomass resources appropriate for recycling represent an opportunity that may significantly improve the comprehensive efficiency of an eco-campus system, resulting in remarkable investment savings, pollution reduction, as well as reducing energy consumption and resources waste. The economic feasibility of two biogas-linked rural campus systems (Fanjiazhai Middle School, FJZ and Xidazhai Middle School, XDZ, Yangling, China), as well as their key technologies, is investigated, the two systems respectively represent two biobased agricultural production modes. It is found that the initial investment, operating investment, and total revenue of FJZ system is 1.37 times, 2.39 times, and 1.71 times of XDZ system respectively, thus indicating that FJZ campus is proved to be a “larger” system compared to the other one. The operating costs show that reasonable control of labor and transportation costs should be carried out to optimize the economic feasibility of the system. After considering the system’s economic credits obtained from using biogas slurry flushing system and avoiding waste management, the net present value of XDZ system had increased to its 1.5 times, while the FJZ system had increased to its 135%. From the perspective of revenue to investment ratio, XDZ system has a better profit earning efficiency compared to FJZ system. The sensitivity analysis indicates that biogas price, fruit yield, labor use are main factors that have the greatest impacts on the economic performance of these eco-campuses.

Techno-economic feasibility study of autonomous hybrid wind and solar power systems for rural areas in Iran, A case study in Moheydar village

2015 ◽  
Vol 34 (5) ◽  
pp. 1521-1527 ◽  
Author(s):  
Abtin Ataei ◽  
Mojtaba Biglari ◽  
Mojtaba Nedaei ◽  
Ehsanolah Assareh ◽  
Jun-Ki Choi ◽  
...  
Keyword(s):  
Power Systems ◽  
Feasibility Study ◽  
Rural Areas ◽  
Solar Power ◽  
Economic Feasibility

scholarly journals Light or Dark Greywater for Water Reuse? Economic Assessment of On-Site Greywater Treatment Systems in Rural Areas

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3637
Author(s):  
Eduardo Leiva ◽  
Carolina Rodríguez ◽  
Rafael Sánchez ◽  
Jennyfer Serrano
Keyword(s):  
Public Schools ◽  
Rural Areas ◽  
Water Reuse ◽  
Central Zone ◽  
Economic Assessment ◽  
Economic Feasibility ◽  
Operating Costs ◽  
Small Scale ◽  
Capital Costs ◽  
The Impact

Water scarcity is causing a great impact on the population. Rural areas are most affected by often lacking a stable water supply, being more susceptible to the impact of drought events, and with greater risk of contamination due to the lack of appropriate water treatment systems. Decentralized greywater treatment systems for water reuse in rural areas can be a powerful alternative to alleviate these impacts. However, the economic feasibility of these systems must be thoroughly evaluated. This study reports an economic analysis carried out on the viability of greywater reuse considering scenarios with light greywater or dark greywater to be treated. For this, data obtained from the assembly and monitoring of greywater treatment systems located in the north-central zone of Chile, supplemented with data obtained from the literature were used. The results showed that both scenarios are not economically viable, since the investment and operating costs are not amortized by the savings in water. In both evaluated cases (public schools), the economic indicators were less negative when treating light greywater compared with the sum of light greywater and dark greywater as the inlet water to be treated. The investment and operating costs restrict the implementation of these water reuse systems, since in the evaluation period (20 years) a return on the initial investment is not achieved. Even so, our results suggest that the best alternative to reuse greywater in small-scale decentralized systems is to treat light greywater, but it is necessary to consider a state subsidy that not only supports capital costs but also reduces operating and maintenance costs. These findings support the idea that the type of water to be treated is a factor to consider in the implementation of decentralized greywater treatment systems for the reuse of water in rural areas and can help decision-making on the design and configuration of these systems.

Solar energy for air conditioning of an office building in a case study: Techno-economic feasibility assessment

2021 ◽  
Vol 39 ◽  
pp. 148-162
Author(s):  
Aziz Haffaf ◽  
Fatiha Lakdja ◽  
Djaffar Ould Abdeslam ◽  
Rachid Meziane
Keyword(s):  
Solar Energy ◽  
Air Conditioning ◽  
Economic Feasibility ◽  
Office Building ◽  
Feasibility Assessment

Development of integrated bioenergy devices for the improvement in the quality of life of poor people

2011 ◽  
Vol 31 (2-3) ◽  
Author(s):  
Abdeen Omer
Keyword(s):  
Rural Areas ◽  
Alternative Energy ◽  
Cost Effective ◽  
Biomass Energy ◽  
Poor People ◽  
Fuel Wood ◽  
Salient Points ◽  
Biomass Resources ◽  
Added Benefit

Abstract Sudan enjoys abundant solar, wind, hydro, and biomass resources. Like many tropical countries, Sudan has ample biomass resources that can be efficiently exploited in a manner that is both profitable and sustainable. Fuel-wood farming offers cost-effective and environmentally friendly energy solutions for Sudan, with the added benefit of providing sustainable livelihoods in rural areas. Biogas from biomass appears to have potential as an alternative energy in Sudan, which is potentially rich in biomass resources. This is an overview of some salient points and perspectives of biomass technology in Sudan. The current literature is reviewed regarding the ecological, social, cultural and economic impacts of biomass technology. This article provides an overview of biomass energy activities and highlights future plans concerning optimum technical and economical utilization of biomass energy available in Sudan.

scholarly journals Economic Analysis for Investment of Public Sector’s Automated Container Terminal: Korean Case Study

2021 ◽  
Vol 9 (5) ◽  
pp. 459
Author(s):  
Yohan An ◽  
Namkyu Park
Keyword(s):  
Economic Analysis ◽  
Net Present Value ◽  
Container Terminal ◽  
Economic Feasibility ◽  
Timely Manner ◽  
The Public ◽  
Port Facilities ◽  
Automated Container Terminal ◽  
The Social

The purpose of this case study is to conduct an economic analysis to calculate the proper terminal capacity of automated container terminal (ACT) investment from the perspective of the public sector. As a key element of smart port, the ACT is an important terminal operating facility for import/export and transshipment cargo between countries and must have facilities with sufficient capacity to load/unload export/import cargo in a timely manner according to the user’s request. Recently, the method of calculating the capacity of seaport infrastructure is changing from the method of applying the maximum capacity to the method of applying the proper capacity. Therefore, it is desirable to expand port facilities by investigating proper capacity rather than expanding port facilities based on the maximum performance. This study is a case study focusing on the new port of Busan introducing the ACT. From the perspective of national fiscal income and national economy from the ACT investment, this study determines the proper terminal capacity for each berth. As a result of economic analysis, the break-even terminal capacity to secure economic feasibility is from 544,272TEU of the nine berths to 600,138TEU of two berths applying a 2.96% discount ratio. In a sensitivity analysis considering the social discount rate and the change in the size of berths, the net present value has a positive value from a minimum of 530,000 TEU (nine berths with 1.96% social discount ratio) to a maximum of 620,000 TEU (three berths with 3.46% social discount ratio).

scholarly journals ECONOMIC FEASIBILITY STUDY FOR THE INSTALLATION OF A COGENERATION SYSTEM IN A TIMBER INDUSTRY OF LAGES-SC

2019 ◽  
Vol 7 (4) ◽  
pp. 59-71
Author(s):  
Scharles Roberto Vargas ◽  
Graciela Alessandra Dela Rocca ◽  
Nathielle Waldrigues Branco ◽  
José Adelir Wolf ◽  
Fernanda Cristina Silva Ferreira
Keyword(s):  
Net Present Value ◽  
Economic Feasibility ◽  
Economic Viability ◽  
Internal Rate Of Return ◽  
Present Value ◽  
Plateau Region ◽  
Viability Study ◽  
Cogeneration System ◽  
Descriptive Method

This research thematic is the Economic Viability Study, in order to implement a cogeneration system, in a logging company, located in the Santa Catarina highland plateau region. Thus, reducing its production cost, since much of it is due electricity purchase. Data collection of both production, consumption and expenses with electricity purchase and billing were carried out together with the company. Descriptive method was used, with case study. For the economic analysis, both net present value (NPV), internal rate of return (IRR) and payback period were used. With this information and crossing the data, the economic viability for this project became evident, as it can be visualized throughout of this article.

scholarly journals Strategic Capacity Management With Modular Manufacturing And Outsourcing: A Case Study

2011 ◽  
Vol 4 (4) ◽  
Author(s):  
Ignacio Garcia ◽  
Ray Venkataraman
Keyword(s):  
Business Strategy ◽  
Net Present Value ◽  
Cost Model ◽  
Flow Analysis ◽  
Cost Effective ◽  
Product Line ◽  
Fixed Costs ◽  
Course Of Action ◽  
The Cost

<p class="MsoBodyTextIndent2" style="text-align: justify; line-height: normal; text-indent: 0in; margin: 0in 34.2pt 0pt 0.5in;"><span style="font-family: &quot;Times New Roman&quot;,&quot;serif&quot;; font-size: 10pt; mso-bidi-font-style: italic;">This paper proposes that downsizing an industrial manufacturer&rsquo;s capacity is a cost-effective strategy to reduce the cost of conversion while ensuring that adequate capacity is available to meet its business strategy requirements. A case study of a U.S. manufacturer of motors and other mechanical drive systems illustrates a proposed reduction in capacity that utilizes the development and implementation of a cost model to determine the best alternatives for a company whose capacity is not synchronized with its business strategy. The cost model for each alternative is investigated and compared against the &lsquo;Do nothing&rsquo; alternative, using net present value and cash flow analysis to build a case for the most effective course of action. The findings show the benefits of merging manufacturing by separating people, non-people, and fixed costs by facility, product line and product. In addition, the paper also illustrates the benefits of modular manufacturing and outsourcing as a way to further improve costs after the reduction of capacity.<span style="mso-spacerun: yes;">&nbsp; </span></span></p>

scholarly journals Economic analysis of low-temperature grain drying

2020 ◽  
pp. 930
Author(s):  
Pricila Araújo Santana ◽  
Daniela de Carvalho Lopes ◽  
Antonio José Steidle Neto
Keyword(s):  
Low Temperature ◽  
Economic Analysis ◽  
Net Present Value ◽  
Cost Effective ◽  
Economic Feasibility ◽  
Cost Ratio ◽  
Labor Costs ◽  
Benefit Cost Ratio ◽  
Furnace Fuel ◽  
Grain Drying

The main objective of this study was to simulate the economic feasibility of low-temperature grain drying systems considering Brazilian conditions and using three drying capacities, seven grain types and two furnace fuels. For this, 42 scenarios were simulated and compared among themselves by using an economic analysis based on the cash flow model with project lifetime of 20 years. The indices net present value, payback period, benefit-cost ratio and internal rate of return were applied during the analyses. Simulations showed that drying of coffee and beans in large systems presented higher economic feasibility, regardless of the furnace fuel used. All simulated scenarios were cost-effective provided that at least two drying cycles are performed per year. Labor costs, social taxes, grain type and drying capacity most affected the profitability of this kind of investment, while the furnace fuel less influenced the evaluated economic indices.

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