scholarly journals Assessment of Environmental Impact and Economic Viability of Domestic Biogas Plant Technology in Bangladesh

2021 ◽  
Vol 14 (5) ◽  
pp. 44
Author(s):  
Suraya Akter ◽  
Humayun Kabir ◽  
Shamima Akhter ◽  
Md. Mehedi Hasan
Keyword(s):  
Net Present Value ◽  
Economic Benefits ◽  
Economic Feasibility ◽  
Environmental Benefits ◽  
Economic Viability ◽  
Small Scale ◽  
Cost Ratio ◽  
Cow Dung ◽  
Liquefied Petroleum Gas ◽  
Biogas Technology

The study investigated the distinct environmental impacts and economic viability of domestic biogas technology in the countryside of Bangladesh. The study was carried out by a survey through personal interviews with biogas users. Seventy households were selected purposively and interviews were conducted through semi-structured questionnaires. The study mainly highlighted the potential reduction of greenhouse gas (GHG) emission and economic benefits of biogas utilization which were evaluated considering the substitution of traditional biomass fuels, by saving Liquefied Petroleum Gas (LPG) and cost of chemical fertilizer, and carbon trading. The economic benefits are addressed using some well-known economic indicators like Net Present Value (NPV), Payback Period (PBP), and Benefit-Cost Ratio (BCR). The results of the study revealed that a small-scale household anaerobic cow dung biogas digester not only exhibited the potential to cut carbon emissions on average by about 7.8 tons of CO2 equivalents yearly, but it also demonstrated the economic feasibility of doing so as the value of NPV and BCR was positive. This study recommends that the government approach, awareness program, and continuous and proper performing of the biogas technology are needed to intensify the multiples environmental benefits of the technology.

scholarly journals A Novel 10 kW Vertical Axis Wind Tree Design: Economic Feasibility Assessment

2021 ◽  
Vol 13 (22) ◽  
pp. 12720
Author(s):  
Duong Minh Ngoc ◽  
Kuaanan Techato ◽  
Le Duc Niem ◽  
Nguyen Thi Hai Yen ◽  
Nguyen Van Dat ◽  
...  
Keyword(s):  
Wind Speed ◽  
Net Present Value ◽  
Vertical Axis ◽  
Test Site ◽  
Economic Feasibility ◽  
Economic Viability ◽  
Small Scale ◽  
Vertical Axis Wind Turbine ◽  
Average Wind Speed ◽  
Levelized Cost Of Electricity

A novel, small-scale vertical axis wind turbine tree was designed using turbines combining both Darrieus and Savonius blades. We tested for economic viability using wind data collected at a site in Surat Thani, Thailand. The Weibull distribution and Monte Carlo modeling with financial indices (Levelized Cost of Electricity (LCOE), Net Present Value (NPV), Internal Rate of Return (IRR), and Simple Payback Period (SPP)) were used to analyze data. We found that monthly mean wind speeds varied from 2.35 m/s in October to 2.84 m/s in February, corresponding to a wind power of 28.43 W/m2 and 42.68 W/m2. The average annual power output was 1446.1 kWh for May 2019 to April 2021. Results show that for turbine cut-in to cut-out speeds (2 m/s to 15 m/s), the prototype has potential economic feasibility (NPV > 0 for 64.93%), although the small capacity of the wind tree, in combination with the low average wind speed at the Surat Thani test site, showed a lack of economic viability at this specific location (NPV = USD − 20,946.29). A higher-wind-speed location (Chiang Mai) showed viability, especially at a 10 m height (NPV > 0 for 84.83%). We discuss potential conditions that would make broader use of the prototype feasible.

scholarly journals WOOD AND CHARCOAL PRODUCTION IN THE KILN-FURNACE SYSTEM: HOW DO THE COSTS AND REVENUES VARIATION AFFECT ECONOMIC FEASIBILITY?

2021 ◽  
Vol 45 ◽  
Author(s):  
Bruno Leão Said Schettini ◽  
Laércio Antônio Gonçalves Jacovine ◽  
Carlos Moreira Miquelino Eleto Torres ◽  
Angélica de Cássia Oliveira Carneiro ◽  
Paulo Henrique Villanova ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Net Present Value ◽  
Mean Value ◽  
Economic Feasibility ◽  
Economic Viability ◽  
Cost Ratio ◽  
Charcoal Production ◽  
New Production ◽  
System Sensitivity ◽  
Benefit Cost Ratio

ABSTRACT Traditional methods of economic evaluation of wood and charcoal production projects are based on indicators analysis, however, they are subject to market variations and uncertainties. The study was carried out in the city of Lamim, Minas Gerais State, to evaluate the economic viability of wood and charcoal production using the kiln-furnace system, due to the need to know the economic viability of this new production system. Sensitivity analysis using the Monte Carlo technique was performed on costs and revenues. The wood and charcoal production cash flow was elaborated and the following criteria were used in the economic analysis: Net Present Value (NPV), Benefit-Cost Ratio (BCR), Equivalent Periodic Value (EPV), and Internal Return Rate (IRR). The wood and charcoal production sensitivity analysis was carried out using the software @RISK, according to the VPE parameter, which allows comparing projects with different durations. Wood production was economically viable, with NPV of $40.26 ha-1 and EPV of $ 16.80 ha-1, with an average production cost of $13.51 m3 wood-1. The EPV mean value found in the sensitivity analysis was $18.33 ha-1. The charcoal production was economically viable, with NPV of $4.43 mdc charcoal-1 and EPV of $3.52 mdc charcoal-1. The EPV mean value found in the sensitivity analysis was $9.80 mdc charcoal-1. It was possible to conclude that the wood and charcoal production are economically viable in the region.

scholarly journals Feasibility of closed loop ground source heat pump for residential heating and cooling applications in Serbia

2020 ◽  
Vol 24 (2 Part A) ◽  
pp. 965-976
Author(s):  
Aleksandar Jokic ◽  
Nevenka Nikolic ◽  
Natasa Lukic
Keyword(s):  
Heat Pump ◽  
Closed Loop ◽  
Net Present Value ◽  
Economic Benefits ◽  
Economic Feasibility ◽  
Cost Ratio ◽  
Pump System ◽  
Heat Pump System ◽  
Residential Sector ◽  
Heating And Cooling

Households sector in Serbia presents a great chance for energy savings and introduction of RES in the future. The public policies in Serbia are currently limited, but this kind of study can influence public measures that would undeniably generate long-term social and economic benefits to the country. The aim of the present work is to assess economic feasibility of closed loop heat pump systems for heating and cooling purposes in Serbia?s residential sector. The heat pump system was compared to the most commonly used heating fuels in households. Results indicate that the implementation of ground closed loop heat pump systems for heating and cooling purposes in Serbia?s residential sector as a substitute for electric heating is economically feasible. Inadequate prices of natural gas and electricity in public supply are the main problems associated with the project?s financial benefits. The best results were obtained in the scenario with combined debt ratio (40%) and grants (~30%) for the project realization, for which equity pay-back period is approximately three years, while benefit to cost ratio is 2.52. Investigated financial metrics (equity pay-back, internal rate of return assets and net present value) indicate the same positive results considering financial viability of the project.

scholarly journals Economic Feasibility of Agrivoltaic Systems in Food-Energy Nexus Context: Modelling and a Case Study in Niger

Agronomy ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1906
Author(s):  
Srijana Neupane Bhandari ◽  
Sabine Schlüter ◽  
Wilhelm Kuckshinrichs ◽  
Holger Schlör ◽  
Rabani Adamou ◽  
...  
Keyword(s):  
Net Present Value ◽  
Irrigation System ◽  
Economic Benefits ◽  
Economic Feasibility ◽  
Economic Indicators ◽  
Farm Size ◽  
Cost Ratio ◽  
Analysis Model ◽  
Context Modelling

In the literature, many studies outline the advantages of agrivoltaic (APV) systems from different viewpoints: optimized land use, productivity gain in both the energy and water sector, economic benefits, etc. A holistic analysis of an APV system is needed to understand its full advantages. For this purpose, a case study farm size of 0.15 ha has been chosen as a reference farm at a village in Niger, West Africa. Altogether four farming cases are considered. They are traditional rain-fed, irrigated with diesel-powered pumps, irrigated with solar pumps, and the APV system. The APV system is further analyzed under two scenarios: benefits to investors and combined benefits to investors and farmers. An economic feasibility analysis model is developed. Different economic indicators are used to present the results: gross margin, farm profit, benefit-cost ratio, and net present value (NPV). All the economic indicators obtained for the solar-powered irrigation system were positive, whereas all those for the diesel-powered system were negative. Additionally, the diesel system will emit annually about 4005 kg CO2 to irrigate the chosen reference farm. The land equivalent ratio (LER) was obtained at 1.33 and 1.13 for two cases of shading-induced yield loss excluded and included, respectively.

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 Analisis Kelayakan Ekonomi Mesin Pencacah Rumput Gajah Tipe Reel

Agrikultura ◽  
2018 ◽  
Vol 29 (3) ◽  
pp. 144
Author(s):  
Wahyu K Sugandi ◽  
Asep Yusuf
Keyword(s):  
Net Present Value ◽  
Payback Period ◽  
Economic Feasibility ◽  
Cost Ratio ◽  
Elephant Grass ◽  
Period Analysis ◽  
Benefit Cost Ratio ◽  
Cutting Machine ◽  
The Cost ◽  
Benefit Cost

ABSTRACTEconomic analysis reel type cutting machine for elephant grassThe need grass for fodder in the region Lembang has been increasing, but it does not followed byits quality. Therefore, cutting machine which is able to cut the fodder no more than 5 cm size is needed. The Laboratory of Agricultural Machinery and Machinery Department of Agricultural Engineering and Biosystem FTIP Unpad had been developed an elephant grass enchant machine inaccordance with the requirements of making the silage, but no economic feasibility analysis has been done for the machine. Therefore it was necessary to study the economic feasibility analysis of elephant grass cutting machine. The method used in this study was the economic analysis methodwhich includes the cost of production and the breakeven point, and business feasibility including net present value (NPV), benefit cost ratio analysis (BCR), internal rate of return (IRR) and payback period analysis (PBP). The results showed that the cost of production of elephant grass enemies was Rp 2,178 / kg with production breakeven 18.769 kg, BC ratio of 1.15, NPV1 of Rp 70,770, - NPV2 of Rp 61.333, - IRR of 27% and payback period during 2 months. So it can be concluded that the use of elephant-type elephant chopper machine was feasible to use.Keywords: Elephant grass, economic analysis, cutting machineABSTRAKKebutuhan rumput gajah untuk pakan ternak (silase) di daerah Lembang terus meningkat. Syarat pembuatan silase tersebut bahwa panjang potongan rumput gajah sebaiknya < 5 cm. Untuk itudiperlukan sebuah mesin pencacah rumput gajah sesuai syarat pembuatan silase. LaboratoriumAlat dan Mesin Pertanian Departemen Teknik Pertanian dan Biosistem FTIP Unpad telah mengembangkan sebuah mesin pencacah rumput gajah sesuai syarat pembuatan silase tersebut, tetapi belum dilakukan analisis kelayakan ekonomi untuk mesin tersebut. Oleh karena itdiperlukan suatu penelitian berkenaan dengan analisis kelayakan ekonomi mesin pencacah rumput gajah. Metode yang digunakan pada penelitian ini adalah metode analisis ekonomi yang meliputi biaya pokok produksi dan titik impas, serta kelayakan usaha yang meliputi net present value(NPV), benefit cost ratio analysis (BCR), internal rate of return (IRR) dan payback period analysis(PBP). Hasil penelitian menunjukkan bahwa biaya pokok produksi mesin pencacah rumput gajah adalah Rp 2.178/kg dengan titik impas produksi 18.769 kg, BC rasio sebesar 1,15, NPV1 sebesar Rp 70.770,- NPV2 = Rp 61.333,- IRR sebesar 27% dan payback period selama 2 bulan. Maka dapat disimpulkan bahwa pengunaan mesin pencacah rumput gajah tipe reel layak digunakan. Kata Kunci : Rumput Gajah, Analisis Ekonomi, Mesin Pencacah

scholarly journals Effect of different organic manures and fertilizers on growth and yield of knol-khol (Brassica oleracea var. gongylodes L.)

2020 ◽  
Vol 3 (2) ◽  
pp. 56-62
Author(s):  
Md. Anichhul Islam ◽  
Md. Yamin Kabir ◽  
Nubayra Tasnim Shuvra ◽  
Md. Amirul Islam ◽  
Md. Hasibur Rahaman Hera
Keyword(s):  
Brassica Oleracea ◽  
Block Design ◽  
Soil Health ◽  
Poultry Manure ◽  
Environmental Benefits ◽  
Growth And Yield ◽  
Cost Ratio ◽  
Cow Dung ◽  
Benefit Cost Ratio ◽  
Benefit Cost

AbstractA field experiment was carried out to investigate the effect of different manures and fertilizers on the growth and yield of knol-khol (Brassica oleracea var. gongylodes) at Dr. Purnendu Gain Field Laboratory of Agrotechnology Discipline, Khulna University, Khulna from November 2014 to February 2015. The single factor experiment comprised of different types of fertilizers and manures viz., T0 (Control), T1 (Recommended doses of NPK), T2 (Cow dung), T3 (Vermicompost), T4 (Poultry manure), T5 (50 % Cow dung + 50 % NPK), T6 (50% Vermicompost + 50% Cow dung), T7 (50% Vermicompost + 50 % Poultry manure) and T8 (25% Cow dung+ 25% Vermicompost+ 25% Poultry manure + 25% NPK). The Experiment was laid out in Randomized Complete Block Design (RCBD) with four replications. The maximum plant height was obtained from the treatment T1 at 25, 35 and 45 Days after transplanting (DAT). The maximum spread of canopy was 36.75 cm, 52.50 cm and 66.05 cm from the treatment T3, T7 and T2, respectively. The maximum economic yield (21.92 t/ha) and biological yield (40.083 t/ha) were found in the treatment T1 and T7, respectively. Highest benefit cost ratio (3.07) was obtained from the treatment T1whilethe minimum (0.57) was obtained from T3 which indicates that high cost of vermicompost affect net return severely. Although, T1 produced maximum benefit cost ratio, the treatment T4 and T2 are very close to T1 and also statistically similar. So, we can consider poultry manure and cow dung for our soil health, environmental benefits and ecological safety.

scholarly journals KAJIAN KRITERIA INVESTASI KONVENSIONAL DAN LINGKUNGAN PETERNAKAN BABI DI KOTA TOMOHON

ZOOTEC ◽  
2019 ◽  
Vol 39 (1) ◽  
pp. 171
Author(s):  
Franky N.S Oroh ◽  
S A.E Moningkey ◽  
I D.R Lumenta
Keyword(s):  
Net Present Value ◽  
Economic Feasibility ◽  
Cost Ratio ◽  
Internal Rate Of Return ◽  
Benefit Cost Ratio ◽  
Investment Plan ◽  
Investment Companies ◽  
Pig Farms ◽  
Pig Farm ◽  
Benefit Cost

ABSTRACTSTUDY OF CONVENTIONAL INVESTMENT CRITERIA AND ENVIRONMENTAL OF PIG FARMING IN TOMOHON CITY. This study aims to analyze the feasibility of conventional (private) and environment (externalities) investment criteria, which determine the extent of the economic feasibility of the externalities investment criteria taking into account the private costs (conventional costs) and externalities costs (environmental costs) in the pig farm agribusiness. This research was conducted in Tomohon, where the sample pig farms that have business scale criterion of <1,000, 1,000-5,000, and > 5,000 heads. The analysis used the analysis of investment criteria to look at the externalities economic feasibility of the pig farms, with the calculation of Net Present Value (NPV), Benefit Cost Ratio (BCR) and Internal Rate of Return (IRR). NPV of conventionally and externalities was greater than zero or positive, these results suggest that the companies have been conventionally sampled financially feasibility, as well as the investment plan of externalities. IRR conventional and externalities is greater than one, these results indicate that the samples with conventional and externalities investment companies are still profitable, especially if the investment is viewed in the environment, it would be beneficial as it will reduce the environmental impact. BC ratio values conventionally and externalities is greater than one, these results suggest that the externalities investment is feasible for conducting.Keywords :Economy, Environment, Pig Farms, Tomohon

Impact of module degradation on the viability of on-grid photovoltaic systems in Mediterranean climate: case of Shymkent Airport

2020 ◽  
Author(s):  
Zhalgas Smagulov ◽  
Adil Anapiya ◽  
Dinara Dikhanbayeva ◽  
Luis Rojas-Solórzano
Keyword(s):  
Life Cycle Cost ◽  
Mediterranean Climate ◽  
Net Present Value ◽  
Performance Degradation ◽  
Economic Feasibility ◽  
Cost Ratio ◽  
Life Cycle Cost Analysis ◽  
Aging Effects ◽  
Financial Conditions ◽  
Expected Performance

Abstract This paper presents the techno-economic feasibility analysis of an on-grid Photovoltaic Solar System (PVSS) subject to Mediterranean climate aging effects. The PVSS under study is considered installed on the roof of Shymkent airport, located in southern Kazakhstan. A PVSS performance degradation rate of 1.48%-per-annun was considered according to the Mediterranean climate prevailing in the location. A 25-year life-cycle cost analysis comparing the rated vs de-rated on-grid PVSS led to a positive Net Present Value (NPV), a less than 9-year equity payback, and favorable internal rate of return (IRR) and Benefit to Cost Ratio (BCR) in both conditions. The analysis demonstrates that despite the expected performance degradation associated to climatic aging, a convenient feed-in tariff (FIT) and attractive financial conditions, such as those present in Kazakhstan, conform a robust setting to promote on-grid PVSS in the country.

Who Gains from and who Pays for Channel Deepening?

2005 ◽  
Vol 1909 (1) ◽  
pp. 62-69 ◽  
Author(s):  
Thomas A. Grigalunas ◽  
James J. Opaluch ◽  
Young Tae Chang
Keyword(s):  
Net Present Value ◽  
Cost Savings ◽  
Economic Benefits ◽  
The State ◽  
Sensitivity Analyses ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Net Benefits ◽  
Benefit Cost ◽  
Benefits And Costs

Port dredging to accommodate larger vessels can create substantial national economic benefits. However, how affected individual states fare economically with dredging is often unclear and can be an important issue. The benefits and the costs to Delaware residents of dredging—with the recent proposed deepening of the Delaware Bay and River main federal channel as a case study—are examined. Benefits include ( a) lower transportation costs that residents might receive on imported goods, ( b) profits that residents would realize if cost savings (e.g., on refinery products) were not passed forward to Delaware users, ( c) project costs that residents would bear as federal taxpayers, and ( d) benefits that residents would realize if the use of dredged sediments for planned beach renourishment created savings to the state. Sensitivity analyses are used to reflect uncertainty in outcomes. The estimated net present value to Delaware today of all future annual quantifiable benefits and costs ranges between $15,528,393 and $14,195,700 over 50 years at 5.875%. Stated another way, the quantified net benefits for Delaware imply a benefit-cost ratio between 2.07 and 1.89. Hence, for every dollar of the $7.5 million that Delaware would pay as a nonfederal cosponsor, estimated quantifiable net benefits to the state are $2.07 to $1.89. Some benefit and cost estimates are vehemently debated between interested parties, and not all benefits and costs can be quantified.

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