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MHP Design Aids: SARI Regional Micro Hydro Workshop: 2010/04/20-233 May 2010

3 May 2010MHP Design Aids: SARI Regional Micro Hydro Workshop: 2010/04/20-23

IntroductionIntroduction

Objectives of the Design AidsObjectives of the Design Aids

IntroductionIntroductionSources of the Design AidsSources of the Design Aids

j gj gDesign Aids: Typical DrawingsDesign Aids: Typical Drawings

Design Aids: SpreadsheetsDesign Aids: SpreadsheetsP B f B P B f B Program Briefing: Basic AssumptionsProgram Briefing: Basic Assumptions

Use of Design Aids in MHPsUse of Design Aids in MHPsList f R f sList f R f sList of ReferencesList of ReferencesOther Design AidsOther Design Aids


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The Design Aids: A set of typical drawings and t i l d h t f l f N li i typical spreadsheets useful for Nepali micro (100kW) and mini (up to 1000kW) hydropower schemes up to feasibility study level.

Distribution: Electronic Format. Format: Simple and user friendly. Targeted Audience: All qualified practicing MHP Targeted Audience: All qualified practicing MHP

Stakeholders (Consultants, Installers, etc.). Focus 1: Aimed at NOT replacing the skills and

k l d f th lt t /St k h ldknowledge of the consultants/Stakeholders. Focus 2: Quality reports by using the saved time. SHAREWARE: and share them.


SHAREWARE and share them.

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MGSP/ESAP guidelines and standards.SHPP/MGSP i / t / i l f th SHPP/MGSP reviews/assessments/appraisal of the presented reports (PF >400, DF>150, Peltric ~60).

Technical and logistic assistance to 70 SHPs (up 10MW).

Feedbacks from all the stakeholders such as Feedbacks from all the stakeholders such as Reviewers, Consultants, Developers, Manufacturers and Installers.

Experience from other projects Experience from other projects. Standard textbooks, guidelines and standards.


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T: Time Saver for precision and speed (e.g. hydrological calculations based on exact flow measurement date, Q T: Time Saver for precision and speed (e.g. hydrological calculations based on exact flow measurement date, Q

R: References (MHP design) for Consultants to use their R: References (MHP design) for Consultants to use their

calculations based on exact flow measurement date, Q flood off take, friction of penstock, etc.).calculations based on exact flow measurement date, Q flood off take, friction of penstock, etc.).

U: Uniformity in data presentation and to the required U: Uniformity in data presentation and to the required

skills and creativity. External references are minimized while designingskills and creativity. External references are minimized while designing

U: Uniformity in data presentation and to the required depth.U: Uniformity in data presentation and to the required depth.

T: Templates and not a readymade design set.T: Templates and not a readymade design set.T: Templates and not a readymade design set.T: Templates and not a readymade design set.

H: Handy and user friendly AutoCad Drawings and MS Excel spreadsheets (Familiarity)H: Handy and user friendly AutoCad Drawings and MS Excel spreadsheets (Familiarity)


p yp y

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SN Drawing Name

1 01 General Layout.dwg

2 02A Side Intake Plan.dwg2 02A Side Intake Plan.dwg

3 02B Side Intake Sections.dwg

4 03 Drop Intake Plan.dwg

5 04 Headrace dwg5 04 Headrace.dwg

6 05A Gravel Trap.dwg

7 05B Settling Basin.dwg

8 06 Headrace Canal dwg8 06 Headrace Canal.dwg

9 07 Forebay.dwg

10 08 Penstock Alighment.dwg

11 09 anchor & Saddle Blocks dwg11 09 anchor & Saddle Blocks.dwg

12 10 Powerhouse.dwg

13 11 Machine foundation.dwg

14 12 T i i d


14 12 Transmission.dwg

15 13 Single line diagram.dwg

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SN Title / Remarks1 Project Location, District Map & Catchment Area2 Project Layout, sheet 1 of 2, Plan2 Project Layout, sheet 1 of 2, Plan3 Project Layout, sheet 2 of 2, Profiles4 Weir, Intake and Gravel Trap, sheet 1 of 3, plan and sections5 Weir, Intake and Gravel Trap, sheet 2 of 3, plan and sections6 Weir, Intake and Gravel Trap, sheet 3 of 3, plan and sections7 Settling Basin, sheet 1 of 2, plan and sections8 Settling Basin, sheet 2 of 2, plan and sections9 Plan and Profile and Typical Sections/Similar for penstock alignment10 Anchor Blocks, sheet 1 of 211 Anchor Blocks, sheet 2 of 212 S ddl S12 Saddle Support13 Powerhouse Plan and Sections14 Geological Mapping, sheet 4 of 415 Single line diagram


15 Single line diagram

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Consistent and compatible drawings.Minimum required standards are incorporated so Minimum required standards are incorporated so that all the presented drawings are complete and the stakeholders can understand the contents.

Minimum required details such as plans and enough cross Minimum required details such as plans and enough cross sections.

Recommended values such as the minimum thickness of a stone masonry wall, the longitudinal slope of a settling basin etcbasin, etc.

Standard line types and symbols to all the drawings. Elements such as the title box with all the information

and controllers; scale; etc. All drawings with standard layouts for a printer (may

have to be changed as per the actual available printer).


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Free

Boa

r

1

NWL

HFL

Stone masonry in (1:4)cement mortar

NWL

Spillway (Min 50mm above the NWL

Fl hi G t

BackfillingFree Board

L=4 to 10 B

1 : 2

1 : 30

0.3 m stone solingMin 200mm RC (M20)

Flushing Gate

SECTION A-ASECTION AT B-B

Scale A

Min 500

Stone masonry in ( 1:4 ) cement mortar

Flushing Canal

C

Flushing GateB Hbasin=Hwater+Hstorage

NWL

Stone masonry in( 1:4 ) cement mortar

FB

sh

Scale AScale A

Backfilling

Flushing Gate

A1

4

Settling zone

21

A

Hbasin=Hwater+Hstorage

B

NWL+50mm min

Hflu

s

SECTION AT C-C1:30

TcWc

Min 500

Slope

1

L=4 to 10*B

41

2

1:10

SCALE

0 1 2 3 4 5

Project Name

SECTION AT C-CScale ATc


B

GRAVAL TRAP PLAN

C

Drawing No

Drawing Title

DeveloperName of Consultant

Project Name

Scale:Design ByScale A

Gravel Trap

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DDBCC

A

B


Entec AG,

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Start and EndStart and End

Inputp

Processing formulas and output

Processing and output from other sub routine

C nditi nal branchinConditional branching

Flow direction


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1. Discharge calculations2. Hydrological calculations based on MIP and Hydest methods3 Weir Design3. Weir Design4. Side intake.5. Bottom intake.6. Settling Basin/Gravel Trap/Forebay with spilling and flushing systems.

C l lti l fil d ti7. Conveyance canal: multiple profiles and sections.8. Conveyance pipe: multiple profiles and sections.9. Penstock with power calculations.10. Anchor Load.11. Anchor Block.12. Turbine selection.13. Selection of electrical equipment.14 Machine Foundation14. Machine Foundation.15. Transmission / Distribution line calculations.16. Loads and benefit calculations.17. Costing and financial analyses.


g y18. Utilities: uniform depth, loan payment calculations, etc.

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Iterative process:p

EndY =f(X): X=f`(Y)Is

e=<|Yn+1 –Yn|Yes

Assume Xo

X=X+hNo

Iteration in Excel Tools->Options->Calculations>Tick Iteration (cycles & h)


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Tools =>


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• Macros (actions performed internally (may be a virus) are turned off by default

T l M S it M di (t t f th D i • Tools => Macros=> Security=> Medium (to turn on for the Design Aids)


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Individual vs. linked spreadsheets: Common inputs (name of the project, flood

di h t ) li k d b d f lt C b discharge, etc.) are linked by default. Can be modified for different projects (SideIntake=> Sisne, Hydrology => Gothi…).y gy )

Standard vs. User Specific Inputs: Standard optimum inputs (FB for canals, FS

f MS i t ) C b ifi for MS pipe, etc.). Can be specific non standard values for specific reasons.

Interpolated Values Interpolated Values Interpolated values (Kbend, Cd, etc.) with the

help of curve fitting/trend line (Confirm!).


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Errors NAME#: Not enabling macros (custom

f ti d d ) S t th functions and procedures). Set the macro security level to medium, close the spreadsheet and reopen it.p p

VALUE#: Malfunctioning circular references. Select the erroneous cell, press F2 and Enter.

Cell notes AEPC and other general guidelines AEPC and other general guidelines Computational procedures Formulae


References for input

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Cell Text Conventions: Blue cells = Mandatory input (head, etc)

R d ll O ti l i t ( d D it t ) Red cells = Optional input (sed. Density, etc) Black cells = Information/Output (protected)

Data Validation: Data Validation: Some inputs such as the name of the month, MIP

hydrological region and dates in Hydrology have to be exactly the same as the predefined values. y pErrors will be flagged for invalid inputs.

Pull Down menusll d f d d l ( Pull down menus for standard values (Manning’s

n). Users can modify if data validation in not

specified.


specified.

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C ll N tCell Notes


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Cell Fo m laCell Formula


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Colour coding of cellof cell texts


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Types of Inputs: User/Project specific inputs: such as the name r/ r j ct p c f c nput uch a th nam

of the project, gross head, etc.

P ib d i t Th ff h i Prescribed inputs: The program offers choices for standard inputs such as the Manning’s coefficient of friction for different surfaces. U ll d i h i ifi lUsers are allowed to input their specific values.

Mandatory inputs: Inputs that have to be Mandatory inputs: Inputs that have to be validated.


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Use with common sense. May need a simpler version.

Drawings:Drawings: All MHP drawings can be used. Use of bottom

intake not common in South Asia. May be used i i ti i i ti l bin existing irrigation canal bypass.

Spreadsheets: All spreadsheets except All spreadsheets except

Hydrology (made for Nepal). Bottom intake with care.

d f ( d f l E d l ) Load Benefit (made for Nepal as per AEPC guidelines). Costing and Financial (made for Nepal as per AEPC

guidelines).


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1 Mini-Grid Support Programme, Alternative Energy Promotion Centre, Kathmandu, Nepal (2002), Peltric Standards

2 Mini-Grid Support Programme, Alternative Energy Promotion Centre, Kathmandu, Nepal (2003), Preliminary Feasibility Studies of Prospective Micro-hydro Projects

3 Mini-Grid Support Programme, Alternative Energy Promotion Centre , Kathmandu, Nepal(2001), Technical Details and Cost EstimateKathmandu, Nepal(2001), Technical Details and Cost Estimate

4 Mini-Grid Support Programme, Alternative Energy Promotion Centre , Kathmandu, Nepal(2003), Guidelines for Detailed Feasibility Study of Micro-Hydro Projects

5 European Small Hydropower Association (1998), Layman's Guidebook on How to Develop a Small Hydro Site

6 BPC Hydroconsult, Intermediate Technology Development Group (ITDG), Kathmandu Nepal (2002) Civil Works Guidelines for Micro-Hydropower in Kathmandu, Nepal (2002), Civil Works Guidelines for Micro Hydropower in Nepal.

7 United Nations Industrial Development Organization (UNIDO), Report on Standardiztion of Civil Works for Small Hydropower Plants


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8 GTZ/Department of Energy Development, Energy Division, Papua New Guinea, Micro Hydropower Training Modules (1994), Modules 1-7, 10, 13, 14 & 18B.

9 Americal Society of Civil Engineer (ASCE) Sediment Transportation9 Americal Society of Civil Engineer (ASCE), Sediment Transportation.

10 KB Raina & SK Bhattacharya, New Age International (P) Ltd (1999), Electrical Design Estimating and Costing.

11 Badri Ram & DN Vishwakarma, Tata McGraw-Hill Publishing Company Limited, 11 Badri Ram & DN Vishwakarma, Tata McGraw Hill Publishing Company Limited, New Delhi (1995), Power System Protection and Switchgear.

12 Adam Harvey et.al. (1993), Micro-Hydro Design Manual, A guide to small-scale water power schemes, Intermediate Technology Publications, ISBN 1 85339 103 4 103 4.

13 Allen R. Inversin (1986), Micro-Hydropower Sourcebook, A Practical Guide to Design and Implementation in Developing Countries, NRECA International Foundation, 1800 Massachusetts Avenue N. W., Washington, DC 20036.

14 Helmut Lauterjung/Gangolf Schmidt (1989), Planning of Intake Structures, GATE/GTZ, Vieweg.


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15 Methodologies for estimating hydrologic characteristics of ungauged locations in Nepal (1990), HMG of Nepal, Ministry of Water Resources, Water and p ( ), p , y ,Energy Commission Secretariat, Department of Hydrology and Meteorology.

16 Design Manuals for Irrigation Projects in Nepal (1990), Planning and Design Strengthening Project (PDSP), His Majesty's Government of Nepal, Ministry of Water Resources Department of Irrigation United Nations of Water Resources, Department of Irrigation. United Nations Development Programme (NEP/85/013)/World Bank.

17 Salleri Chialsa Small Hydel Project (1983), Technical Report, DEH/SATA, ITECO.

18 P.N. Khanna (1996), Indian Practical Civil Engineer's Handbook, 15th Edition, Engineer's Publishers, Post Box 725, New Delhi - 110001.


Small Hydropower Promotion Project

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5 introduction on mh power design aids pushpa...

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