Squeezing Assessment Along 2.84-km-Long Headrace Tunnel of a Small Hydropower Project in KPK, Pakistan: Comparison of Different Methods

2019 ◽  
Vol 5 (3) ◽  
Author(s):  
Mian Sohail Akram ◽  
Aisha Noor ◽  
Muhammad Fahad Ullah ◽  
Luqman Ahmed ◽  
Faisal Rehman ◽  
...  
Keyword(s):  
Hydropower Project ◽  
Small Hydropower ◽  
Headrace Tunnel

scholarly journals Parametric study of a proposed small hydropower project at Gurara-Nigeria

2021 ◽  
Vol 8 (1) ◽  
pp. 1877868
Author(s):  
Moses E. Emetere ◽  
Oluwaseyi Bello ◽  
S.A. Afolalu ◽  
A.O. Mamudu ◽  
L.M. Amusan ◽  
...  
Keyword(s):  
Parametric Study ◽  
Hydropower Project ◽  
Small Hydropower

scholarly journals Evaluation on the TBM Performance at a Hydropower Project in Ecuador

2019 ◽  
Vol 24 ◽  
pp. 10-16
Author(s):  
Krishna Kanta Panthi ◽  
Jhonny Encalada
Keyword(s):  
Rock Mass ◽  
San Francisco ◽  
Penetration Rate ◽  
Tunnel Boring Machine ◽  
Quality Parameters ◽  
Hydropower Project ◽  
Tbm Performance ◽  
Rock Mass Quality ◽  
Geological Conditions ◽  
Headrace Tunnel

The aim of this manuscript is to discuss the Tunnel Boring Machine (TBM) performance along the recently constructed headrace tunnel of Minas-San Francisco Hydropower Project in Ecuador. Firstly, the manuscript briefly describes the importance of TBM tunneling and about the Minas-San HPP. Further, discussions are made on the engineering geological conditions along the headrace tunnel. Detailed evaluations are made on the performance of TBM tunneling considering influence of rock mass quality on the TBM penetration rate. The manuscript emphasizes that the knowledge of the rock mass quality parameters and cutter technology available at present are among the key factors that influence the estimation of the net penetration rate of the TBM. It has been demonstrated that the hard to very hard rock masses of high abrasivity that were encountered along the headrace tunnel alignment caused very low penetration giving slow progress, which was not predicted during planning phase design. The authors investigated a fairly good link between TBM penetration and the mechanical strength of the rock mass.

scholarly journals Stages in the development of a small hydropower project: Context and implementation basic criteria

DYNA ◽  
2014 ◽  
Vol 81 (184) ◽  
pp. 178
Author(s):  
Sergio Morales ◽  
Laura Corredor ◽  
Julio Paba ◽  
Leonardo Pacheco
Keyword(s):  
Hydropower Project ◽  
Small Hydropower

scholarly journals Effectiveness of Post-injection Grouting in Controlling Leakage: A Case Study

2012 ◽  
Vol 8 ◽  
pp. 14-18
Author(s):  
Krishna Kanta Panthi
Keyword(s):  
Economic Loss ◽  
Construction Cost ◽  
Concrete Lining ◽  
Post Injection ◽  
Hydropower Project ◽  
Construction Costs ◽  
Energy And Environment ◽  
Safety Risks ◽  
Headrace Tunnel

In many occasions severe water leakage problems are faced in shotcrete lined or unlined water tunnels that not only reduce stability of the rock mass but also result in loss of valuable water in conveying tunnel systems. Such leakage causes safety risks and increases the potential for huge economic loss to the hydropower projects. On the other hand, use of full concrete lining as final support increases the construction cost and time considerably. The best way to reduce leakage control and construction costs and time is the use of pre-injection grouting in the headrace tunnels. This paper discusses the role that post-injection grouting has played for controlling leakage through shotcrete lined/unlined low pressure headrace tunnel of the 60 MW Khimti I Hydropower Project in Nepal. DOI: http://dx.doi.org/10.3126/hn.v8i0.4903Hydro Nepal: Journal of Water, Energy and Environment Issue No. 8, 2011 JanuaryPage: 14-18Uploaded date: 16 June, 2011

scholarly journals Assessment of the Multi Functionality of a Small Hydropower Project at Padhu Khola, Kaski, Nepal

2020 ◽  
Vol 2 (1) ◽  
pp. 30-39
Author(s):  
Achyut Bhandari ◽  
Keshav Basnet ◽  
Nisha Pokharel ◽  
Kishor Kumar Shrestha ◽  
Nirmal Prasad Baral
Keyword(s):  
Cost Ratio ◽  
Hydropower Project ◽  
Hydropower Generation ◽  
Small Hydropower ◽  
Benefit Cost Ratio ◽  
Freshwater Aquaculture ◽  
Challenges And Opportunities ◽  
Water Plants ◽  
Benefit Cost ◽  
Selection Of

 Nepal has not utilized the potential of the water resources to the full extent. Systematic and wise development of such resources is of paramount importance for enjoying the maximum possible benefits. This study focused on the needs, challenges, and opportunities of new multifunctional small hydropower projects in Nepal. This study on Padhu Khola shows the possibility of incorporating other facilities along with hydropower for the locality’s socio-economic development. The selection of the best layout of the hydropower generation and distribution of other hydropower components showed that the stream Padhu Khola had a power potential of 1 MW. The economic analysis resulted in the benefit-cost ratio of freshwater aquaculture, drinking water plants to be 1.98 and 1.97 respectively. Other facilities like forestry, local employment facilities, and tourism development were found feasible and practicable.

scholarly journals Planning and Implementation of Small Hydropower (SHP) Projects

1970 ◽  
Vol 5 ◽  
pp. 21-25 ◽  
Author(s):  
Sunil K. Singal
Keyword(s):  
Hydropower Project ◽  
Small Hydropower ◽  
Careful Planning ◽  
Site Specific ◽  
Planning Project ◽  
Project Formulation

Small hydropower project is a clean source of power, which India has in abundance. Small hydropower projects are site specific and need careful planning for project formulation and implementation. In this paper an attempt is made to discuss types of small hydropower schemes and present a methodology on planning and implementation of small hydropower projects.Key words: Feasibility; Investigations; Planning; Project Formulation; Small hydropowerDOI: 10.3126/hn.v5i0.2480Hydro Nepal Vol. 5, July 2009 Page:21-25 

scholarly journals Design of Mini Grid for SHP Plants

1970 ◽  
Vol 7 ◽  
pp. 38-47
Author(s):  
S. N. Singh ◽  
M. P. Sharma ◽  
Ajit Singh
Keyword(s):  
Rural Areas ◽  
Capital Investment ◽  
Cost Effective ◽  
Line Length ◽  
Load Factor ◽  
Hydropower Project ◽  
Small Hydropower ◽  
Minimum Capital ◽  
Break Even Point ◽  
Selection Of

The supply of power to remote rural areas in India from Small Hydropower Projects (SHP)/renewable en-ergy power projects in cost effective and sustainable manner requires the optimum design of mini-grids. The present paper deals with the design of mini grids of nine SHP plants presently running in isolated mode only for 8 hrs/day wasting the energy of 16 hrs/day. Based on system layouts, transmission routing, line length and selection of conduc-tor, 5 different alternates of mini-grids were developed to connect these SHPs together as well as with the nearby 33 kV grid substations located at approximately 15, 17 and 9 km from nearby SHPs in order to improve the load factor. The optimization of these alternates on the basis of the Break Even Point (BEP) has indicated that Alternate-V has been found as optimum alternative for the study area with shortest line length, low line losses and minimum capital investment for the mini-grid implementation.Key words: Small Hydropower Project (SHP) station; Mini-grid; Remote rural areas; Break Even Point; IndiaDOI: 10.3126/hn.v7i0.4235Hydro Nepal Journal of Water, Energy and EnvironmentVol 7, July, 2010Page: 38-47Uploaded date: 31 January, 2011

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