Prefeasibility Study of Upper Khudi -A Hydropower Project

CE1.1.1 This contemplation entitled “Prefeasibility Consider of Loftier Khudi -A hydrosusceptibility contemplation” is single opportune by knot attributtalented attributtalented attributtalented attributtalented of five students in unfair occurrence of capability ce the bachelor’s meaunmistaktalented in polite engineering. This contemplation was carried quenched at Kantipur Engineering College, Dhapakhel, Lalitpur, affiliated to Tribhuwan University. Our team interposed of five portions and the contemplation itself was supervised by Er. Baburam Bharadwaj (Contemplation Contriver of Khudi hydrosusceptibility poor)

CE1.1.2 Entity the conclusive year contemplation of our engineering program, the spacespan ce this contemplation was 1 year. We exertioned on it from June 2010 to November 2010. During this duration, we presented the aggravateture, conducted the feasibility anatomy, contemplation anatomy, contemplation contemplation, contemplation innocence, conclusive gift and conclusive relation. I was the team bring ce my contemplation and was a dedicated portion from established-quenched to finish

CE.1.2 Endground

CE1.2.1 As the spectry suggests, “Prefeasibility Consider of Loftier Khudi -A hydrosusceptibility contemplation”, is prefeasibility consider aimed to portraiture the hypothetical apprehension we had from quenched citation books to refashion learn the feasibility and optimization of the contemplation of brief lamina hydrosusceptibility contemplation centered on Loftier Khudi Large stream in Lamjung confine of Western Nepal. Superiority of Nepalese households trust upon hydrosusceptibility ce their motive needs. So, developing brief lamina hydrosusceptibility motive establisheds can be very fertile motive solutions as the large streams in Nepal are in-great-meaunmistaktalented mountain large streams with competent inliberal throughquenched the year.

CE1.2.2 Khudi Large stream has an middle excel of 1 in 30 with gravels and boulders ceming the large stream bed. It has a haughty lees bliss extent. Loftier Khudi Hydrosusceptibility Contemplation is a round of the large stream symbol hydrosusceptibility intrigue contemplationed to termination susceptibility using the empty of the Khudi Large stream. It begins from the convergence of brace Large streams, Sundar Khola and Khudi Khola. The catchments area of the Large stream is 133 km2 at the Department of Hydrology & Expirationrology (DHM) situation located at Khudi Bazar, which when transformed to our catchments is 25 km2, roundning from north to south.

CE1.2.3 The letters representation moderate optimizing intrigues per contemplation extent, extents of hydraulic structures, penstock and electromechanical equipment and repress the sensitivity anatomy ce the financial parameters which interposed of a weighty termination of in this feasibility anatomy relation. The consider shows the feasibility of contemplation with competent opinions. We made unmistaktalented we followed integral the organizational rules and regulations of the University as polite-behaved-mannered-mannered as the Hydrosusceptibility Contemplation.

CE1.2.4 The contemplation was divided into five calibre spectryly Axioms assembly, Contemplation and modelling, Consume sort, Contemplation planning and scheduling, Economic and financial anatomy. Each portion of the team was dedicated single sector each as a ocean area of consider and was stunteder obligation ce the literary-works retrospect of that keep-apart. I was dedicated the Contemplation planning and scheduling and the Contemplation and Modelling keep-apart.

CE1.2.5 Organisational Chart

CE1.2.6 Contemplation Extrinsic

The extrinsic of this consider is to experience the best contemplation opinion and transfer quenched the pre-feasibility consider of the selfsame. The ocean extrinsics are haughtylighted below:

  • To be acquainted with the diversified aspects of hydrosusceptibility planning and product.
  • To experience quenched the feasibility of contemplation
  • To distinguish abquenched the superior components of the hydrosusceptibility contemplation.
  • To chosened the best contemplation opinion.
  • To transfer quenched the engineering contemplation of hydrosusceptibility components.
  • To count the susceptibility and motive breedd from the contemplation.
  • To transfer quenched the division sort and their consume.
  • To furnish implementation schedule of the contemplation.
  • To transfer quenched optimization of contemplation extent and components.
  • To transfer quenched financial anatomy and sensitivity anatomy of the contemplation

CE1.3 Personal Engineering Activities

CE1.3.1 I keep constantly been vehement abquenched renewtalented motive and it is the ocean deduce I sok engineering as my journey. In the concitation of Nepal, hydrosusceptibility motive has a balbalfortune of liberty. Most of the dominion in the loftier hilly and mountainous calibre are robbed of motive which is not attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented a impenetrtalented motive to end if brief-lamina hydrosusceptibility contemplations implemented. I consulted my friends to cem a knot attributtalented attributtalented attributtalented attributtalented of five. We opportune the aggravateture to consider ce a hydrosusceptibility contemplation that could be portraitured ce a true contemplation in the advenient. Then we opportune the aggravateture and acquiesceted to the Dept. Of Polite Engineering with a inferential spacesuccession graphed in a Gantt Chart. We consulted with the guide engineer contemplationated ce this contemplation and sketched that we would acquiesce a consider that could somehow order the funded empire contemplation. He agreed to acceleration us in adequate practictalented regulatem and agreed to beseem our director.

CE1.3.2 Antecedently we established-outed, we resolute that we mark a concordant brief lamina hydrosusceptibility contemplation. We herd to a concordant hydrosusceptibility contemplation that susceptibilityed a brief city named Banepa east of Kathmandu. We talked to the authorities and they integralowed us to tramp thgruff the integral contemplation and experience the dam, the turbines moderate compass, and integralowed us to receive the specifications of the turbine so that we could keep a gruff subject of what equipment we had to adopt to furnish the anatomy of the hydrosusceptibility contemplation we had to do the contemplation ce. I so conducted weekly journey meetings with the team and director to ornaments any hurdles that we faced. We consulted with superior professors abquenched my problems and subjects.

CE1.3.3 The integral exertion of this consider is dsingle by desk Consider and opportunity mark and examine by unimportant utensil such as Tape, and Abney plane restrainteseeing. Integral the axioms and not attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributableification adapted from unanalogous origins were carefully dissectd to perfashion the precursive consider of integral the certain components. Ce the hydrological consider of the contemplation, average monthly empty of 13 years’ archives of Khudi Khola at Khudi Bazar situation (439.3) are obtained from DHM and dissectd using catchment area correspondence rule to experience certain hydrological parameters. Topographic maps (1:50000) of sketched locality was read ce the integralocation and contemplation of polite as polite-behaved-mannered-mannered as electro-mechanical components of the contemplation.

The ruleology filled to stuntederreceive the consider were desk consider and map consider, opportunity examine and collective interaction, literary-works retrospect, hydrological anatomy, screening and chosenion of the best opinion, hydraulic contemplation of the components of the clarified opinion, consume anatomy and provision of beak of quantities and conclusively relation provision and gift.

CE1.3.4 The topography of the locality is inliberal and rocky and thus we proceeded deciding that tunneling is the best practictalented opinion ce inaccessibleway. As I was dedicated the function of contemplation and modelling, I am explaining what the engineering contemplation from the guideexertion to the penstock is interposed of in trivial.

CE1.3.5 The guideexertion was located at 1290 m altitude. The infringe weir was supposing ce enjoyment of stream to the inreceive and thoroughfare of haughty deluge inaccessible. Ce contemplation of the weir with tediousness 10m, the contemplation deluge is receiven as 40.073 m3/s ce hundred years-return durations. The infringe extent has been countd becarepresentation 50% of the worthlessness persecute is conditional and the contemplation empty get be transfered. The inreceive was contemplationed to integrastunted pocketing of inliberal from the origin with as brief lees as practicable, thereby minimizing oceantenance and actional consumes and providing some meaunmistaktalented of guard athwart detriment so (e.g. blocking of the conduit by incoming lees and scum).

A.) Contemplation Aspects of Gravel Trap and Establishedtling Basin: The ocean contemplation faculty of the gravel rap was that the rapidity thgruff it should be less than that required to change the briefest extent of gravel to be removed. Since the inliberal importation from lees imputeed large stream not attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented simply narrows the extent of the transferancesystem beside so detriments the hydro turbines, thereby causing action and oceantenance problems. To contend with distribution of motive era from this, I wanted to contemplation and compose a establishedtling basin antecedently inliberal enters the established, which accelerations to proviso the memorandum of lees into the established by harness the keep-atittle extent superior than 0.2 mm.

B.) Guiderace Tunnel: The cast as polite-behaved-mannered-mannered as the book of the tunnel should be chosened such that it should be readily liberal from adequate regulate ce moderate, oceantenance and retrieve. In presunmistaktalented tunnels unconcealed stunteder haughty guides, the stipulations of integument of firm (PCC or RCC) and uniform steel integument including steel pipes may be embedded. To narrow composeion consumes, relatively haughty stream velocities should be careless in tunnels, haughtyer singles than those of unconcealed canals. In conjunction to this I so countd Friction losses Darcy Weisbach cemula. The terminationing configuration of the tunnel succeeding integral anatomy was Inverted D cast 2m in crossing and 1500 m in tediousness.

C.) Surge tank: A surge tank is generally composeed straighthabit restraintmer to penstock or presunmistaktalented stem so as to wet quenched the vibration in inliberal plane as shortly as practictalented and to minister inliberal during impute postponement until the newlightlight rapidity has been restraintmal. Conclusive contemplation victorious of a spherical surge with crossing 2 m and exaltation of 13.5 having upsurge and daccept surge of 6.256m and 4.704 m respectively.

D.) Penstock: Penstock is usually the pipesuccession in among surge tank and turbine opening. Penstock may be stunted presunmistaktalented or haughty-presunmistaktalented penstock. Usually it is haughty hurry. The materials portraitured are usually of steel, reinforced firm. The pipe crossing and the brawniness are such that the restraintce in steel computed from hoop restraintce criteria is polite-behaved-mannered-mannered amid the integralowtalented proviso. The hoop restraintce familiar is dedicated by the meager cylinder system. I contemplation we portraitured prompt stuntederground stem made of tempered steel.

E.) Turbine: To oceantain the minister uniform in peak impute stipulations, brace aces of Pelton turbines with tame Stem are in close in the Susceptibilityhouse. Brace aces of generator are portraitured to breed electrical motive. Turbine was chosened on the anatomy domiciled on adapted guide and contemplation empty. Brace aces are supposing ce perpetuation of minister on oceantenance of single ace so.

Also, a tailrace was established to transfer the inliberal leaving the susceptibility established end to the large stream. The tailrace should be contemplationed to oceantain the inliberal deportment at the altitude definitive by the turbine creator and to secure the susceptibility established athwart delugeing by the expected contemplation deluge plane in the large stream.

E.) Susceptibility era: A 66 KV transmission succession has been sketched ce the unendangered and economic transmission of the breedd susceptibility, parallel a tediousness of 30 Km ce the wholeiance of the minister to the general grid at Udaypur.

CE1.3.6 The subjects that I was enrolled in the stuntedergraduate relish flowing mechanics, hydraulics, inliberal minister, engineering hydrology, examine, engineering sketch restrainteseeing. accelerationed me a balbalfortune to adequate and furnish my contemplation. I balmy to utilise integral my apprehension in unroot regulatem to trueise a hydrosusceptibility contemplation. While doing this contemplation, I not attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented simply practiced the applied keep-akeep-adivorce of polite and hydrosusceptibility engineering beside so read a balbalfortune of skilled skills relish message skills, space skill, contemplation gift and team exertion. During this contemplation season, entity a knot attributtalented attributtalented attributtalented attributtalented bringer I had to exertion-out not attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented attributtalented simply my accept beside I keep to acceleration my knot attributtalented attributtalented attributtalented attributtalented portions in technical and other consideration keep-akeep-adivorce as polite-behaved-mannered.

CE1.3.7 Me parallel with my team portions exertioned simultaneously very impenetrtalented and could adequate the contemplation in the defined space. We could consider the pre-feasibility of Loftier Khudi and furnish the conclusive relation in the contemplationated space. Succeeding the tenor of this contemplation, I felt a wide stir in my reliance plane as an engineer and I felt I could abundantly ornaments the obstacles by becarepresentation abquenched it, applying the solutions in true conduct problems. We portraitured diversified software relish MS-Word, MS-Excel, MS-PowerPoint to instrument the relation, furnish gifts and dissect adapted axioms. I feel relish my relationing skills, impressment skills and sketch skills so utilised professionally aggravate the round of this contemplation.

CE1.4 Summary

Undertaking this contemplation accelerationed me to portraiture my hypothetical apprehension on skilled and true conduct exertion scenarios of contemplation and composeion of a hydro susceptibility established. We were very lucky that the contemplation expiration integral the moderate extrinsics. The contemplation has a ordinary B/C affinity of 2.1 and mitigated of 2.13 and IRR of 23.4%. The aggregate consume of the contemplation is NRs 605,089,628.69 and consume per kilowatt is amid the place of most-general Consume per KW ce the contemplations of-late built in Nepal. Hence, the contemplation was financially, technically, collectively and environmentally viable, and can be cewarded ce exalt consider. In a nutshell, I was fertilely and successfully talented to enter-upon, contrive and adequate the contemplation ensuring that it expiration integral its extrinsics amid a contemplationated space perform.

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