Life cycle cost and sensitivity analysis of palm biodiesel production

Fuel ◽  
2012 ◽  
Vol 98 ◽  
pp. 131-139 ◽  
Author(s):  
H.C. Ong ◽  
T.M.I. Mahlia ◽  
H.H. Masjuki ◽  
Damon Honnery
Energies ◽  
2017 ◽  
Vol 10 (7) ◽  
pp. 877 ◽  
Author(s):  
Teuku Meurah Indra Riayatsyah ◽  
Hwai Chyuan Ong ◽  
Wen Tong Chong ◽  
Lisa Aditya ◽  
Heri Hermansyah ◽  
...  

2020 ◽  
Vol 12 (16) ◽  
pp. 6584
Author(s):  
Jingjing Jia ◽  
Shujie Ma ◽  
Yixi Xue ◽  
Deyang Kong

Electric carsharing (ECS) is a potential option to address the problem of unsustainability in the transportation sector. The business-to-consumer model of ECS, which is one of several different electric carsharing models, has gained much popularity in recent years. Generating sufficient revenue to cover costs is a critical factor for ECS companies to maintain healthy development. This study makes an economic analysis, on the basis of life-cycle cost and monetary revenue associated with the operation of ECS, of two Chinese ECS companies: EVCARD and LCCS. Based on data gathered by field investigation, this study aims to determine the break-even moment for each company’s main vehicle models by means of the net present value method. The results show that EVCARD achieved an earlier break-even moment than LCCS. The break-even moment of Chery eQ of EVCARD was the shortest of all the vehicle models, at only 181.3 min. Moreover, a sensitivity analysis was conducted to portray how different cost-related and revenue-related factors influence the break-even moment. Our findings indicate that a wide difference exists in terms of the influence of different factors on the break-even moment. Among these, the manufacturer’s suggested retail price is the most influential variable, followed by the unit rental price. The reaction of the break-even moment to the market price of a charging pile and the non-rental revenue per vehicle—especially the latter—was found to be negligible in the sensitivity analysis.


2020 ◽  
Vol 5 (2) ◽  
pp. 202-207
Author(s):  
Eka Sudarmaji ◽  
Yuli Ardianto

This paper to set up an initial model in developing the model for Energy Saving Companies in Indonesia in assessing alternative financing for Energy Efficiency Saving in Indonesia. The reviewed for all the energy efficiency saving advantages cover the upfront investment costs are presented. The model is using the Analytic Hierarchy Process (AHP) and life cycle cost (LCC) analysis, with sensitivity analysis, is presented under possible a game-theory process. On some occasions, these alternative financing values are comparing to other similar investment returns as well as the risks


Author(s):  
Godwin Adie Akeke ◽  
Melody Sunday Osok

Over the years, Life Cycle Costing (LCC) has been recognized and used as an important technique for evaluating, forecasting and discounting the future costs of building to the present day value, from conception, design to completion, operation, maintenance, down to decommissioning. This work presents a study of Analysis on different discount rate of the forecasts cost of building project using sensitivity analysis techniques, the case study being Calabar International Conference Center (CICC) building project. Life cycle cost analysis was conducted and forecast for 51 years using Net present value (NPV) with the following discount rates 4%, 5%, 6%, 8%, 10%, 12% and 13% respectively. Results showed that the lower the discount rates, the higher the cost value and via vasa. The building had a positive value >0 indicating a significant benefit at the end of the study period. The percentage contribution of the discount rate on the initial cost, salvage value and the life cycle cost indicates that at 4% the initial cost accounted for 85% of the discounted cost, life cycle cost 13% and salvage value 2%. The salvage value recorded 0% at 12% and 13% discount rate The higher the discount rates the higher the discounted initial cost and the lower the life cycle cost.


2012 ◽  
Vol 12 (3) ◽  
pp. 309-320 ◽  
Author(s):  
S. R. Ghimire ◽  
D. W. Watkins ◽  
K. Li

Rain water harvesting (RWH) has gained popularity as a way of supplementing water supplies for various purposes, including drinking, sanitation and irrigation. This paper presents a methodology of life cycle cost assessment (LCCA) of a unit RWH system (hereafter RWH system) for toilet flushing in an industrial site. The life cycle cost and net present value benefits (NPVB) were estimated for the RWH system and compared with those of a conventional system. For the current system design, the analysis of the life cycle cost of the RWH system indicates negative NPVB for all plausible service lives up to 55 years, mainly because of the initial infrastructure investment costs, operation and maintenance (O&M) costs, and pumping costs for the system. However, sensitivity analysis concluded that an alternative design with no pump, low O&M costs (5%) and 1% tank refill volume may be economically viable given 7 years of service life. The sensitivity analysis also revealed that higher hypothetical water prices ($5/m3) may lead to positive NPVB after only 5 years of service. Full cost pricing for rainwater harvesting is important for the promotion of sustainable practices and life cycle based system design is critical to make RWH systems economically attractive.


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