scholarly journals Improvement of the Feasibility Study of Investment Projects Aimed at Increasing the Throughput and Carrying Capacity of Railway

2019 ◽  
Vol 272 (3) ◽  
pp. 032190
Author(s):  
A K Korf ◽  
O V Mironenko ◽  
M A Bakinovskaya
Author(s):  
V. E. Perekutnev ◽  
V. V. Zotov

Operation of inhaul rubber steel cables in vertical mine hoisting is discussed. The research in the field of mine hoisting is reviewed, and the further R&D directions are identified. Some studies concern life extension of hoisting ropes. One of the promising trends seems to be application of belt pullers as inhaul cables, which can essentially enhance mine hoist efficiency. In the meanwhile, capabilities of rubber steel cables suffer from deficient attention. The performance capabilities of rubber steel cables of top manufacturers (Promkanat and SAG) are compared, and application ranges in vertical mine hoisting are determined for such cables. It is found that the Polish manufacturer’s rubber steel cables offer a wider range of application. The analysis shows that rubber steel cables can be used as inhaul cables of vertical mine hoisters. Rubber steel cables possess suitable characteristics and are capable to elevate considerable loads to various hoisting heights. In particular, the existing rubber steel cables ensure carrying capacity of hoists up to 20-25 t at the hoisting heights to 400-500 m and sometimes can elevate skips with tonnage of 10 t to a height up to 1000 m and more. The further feasibility study of operation of inhaul steel rubber cables in hoisting units should address motion stability of a puller on a driving drum, load distribution in ropes of base of rubber steel cables, validation of hoister design, adjustability of rubber steel cable length during its operation, etc.


2018 ◽  
Vol 19 (2) ◽  
pp. 563-570
Author(s):  
I WAYAN BUDIASA ◽  
I GUSTI NGURAH SANTOSA ◽  
I GUSTI AGUNG AYU AMBARAWATI ◽  
I KETUT SUADA ◽  
I NYOMAN SUNARTA ◽  
...  

Budiasa IW, Santosa IGN, Ambarawati IGAA, Suada IK, Sunarta IN, Shchegolkova N. 2018. Feasibility study and carrying capacity of Lake Batur ecosystem to preserve tilapia fish farming in Bali, Indonesia. Biodiversitas 19: 563-570. Lake Batur in Bangli District was potential for fishery development up to 5% of the total water area. Currently the lake area used for fishery was only 6.28 ha, leaving the area up to 77.07 ha potential for fishery development. Tilapia (Oreochromis niloticus) was the most abundant fish in the lake. This research aimed to evaluate the financial feasibility of tilapia fish farming with Floating Net Cages (FNC) technology within the lake and to assess its carrying capacity for the tilapia aquaculture. Discounted investment criteria were used to test farm survey data from 30 tilapia fish growers at top three villages which had the largest number of FNC. Six water samples were taken using deep water sampler at three sampling points were analyzed to see a number water chemistry and physics condition. The results showed that economic life of a FNC was financially feasible as indicated by the positive Net Present Value (NPV), Internal Rate of Return (IRR) was greater than 9% and Net Benefit Cost Ratio (Net B/C) was greater than one; and however the water quality as indicated by value of TDS, NO2, BOD, Total-P, NH3, and P-PO4 exceeded the maximum limit of water quality criteria class II based on Government of Indonesia Regulation No. 82/2001. Thus, FNC should not be more expanded within the lake due to water pollution of the lake.


2020 ◽  
pp. 67-80
Author(s):  
Dejan Bugarin ◽  
Ivan Jelić ◽  
Miljan Gomilanović ◽  
Aleksandar Doderović

This work presents the application of the COMFAR III software package in development a feasibility study of investment. The application of this program enables an efficient analysis of investment justification and numerous variations of both input and graphic and alphanumeric output data. The methodological basis of economic analysis, used in this software package, is based on decades of experience of economists, engineers, managers, ecologists and experts from the other fields, as well as on the experience of numerous investment projects within the United Nations Industrial Development Organization. The applied methodology is the current standard in the field of economic evaluation and analysis of the industrial development projects. The software package was used on a specific example of the open pit of technical stone Gelja Ljut-Gacko, in a function of providing the concession right of this deposit for the needs of the Gacko Mine and Thermal Power Plant.


2019 ◽  
Vol 118 (10) ◽  
pp. 167-180
Author(s):  
Murtadha Mohammed Shani ◽  
Layth Ali Hammadi AL-Tameeme ◽  
Sikna Swadi Wadi

The purpose of this research is to know the effect of the future accounting information and the predictability provided by that information in  enhancing the financial viability of the economic units and identifying the financial feasibility and importance of the economic units in terms of guiding the owners of capital to take the right investment decision.This research was conducted in one of the investment projects for the production of iron located in the city of Baghdad, the region of Awrig , The most important conclusion of this study is that for the financial feasibility study it is important to estimate the success of the project by determining the expected returns compared to the expected costs.


2016 ◽  
Vol 4 (2) ◽  
pp. 29-34 ◽  
Author(s):  
Branka Budimir

Author(s):  
R.A. Maisky ◽  
◽  
G.Z. Nizamova ◽  
Yu.A. Pavlova ◽  
◽  
...  

When assessing the value of capital investments, they often do not pay due attention to those capital investments that are associated with the formation of a sufficient amount of working capital, focusing on fixed assets. Meanwhile, capital investments in the project working capital formation are necessary to cover the costs of the preparatory process, inventory formation, and the creation of a reserve for the period until payments are received for receivables on products sold. During the period of acquisition of assets, one of the important components of investment costs, along with capital expenditures in fixed assets and intangible assets, is net working capital, which is the cost of increasing working capital (current assets). It should also be noted that when evaluating the effectiveness of real investment projects at the stage of feasibility study, it is neither possible nor necessary to calculate net discounted income for individual periods, since at this stage of analysis, it is unlikely that annual differentiation of costs and results will be provided. Thus, when determining the effectiveness of an investment project at the stage of pre-feasibility study of the main decisions, it is justified to use simplified calculations of operating results based on annuity models. An important problem should be recognized as modeling the mechanism for returning invested amounts. To ensure the adequacy of the algorithm taking into account the reimbursement of non-recurring costs in the calculation of investment performance should take into account the flow of funds sinking Fund (in the form of means for reproduction of fixed assets and the depreciation; or funds that ensures return on investment). In the same section, the organization's assets that remain after the end of the business project should be taken into account. In the article, the authors present the improvement of the model for forming business project indicators at the pre-project stage of evaluating the effectiveness of investments, taking into account all these aspects.


2019 ◽  
Vol 19 (3) ◽  
pp. 65-84
Author(s):  
Khalid Sweis ◽  
Tamer Sabri ◽  
Qadri Alzaghal ◽  
Samaa Mssis ◽  
Manal Awartani

Sign in / Sign up

Export Citation Format

Share Document