SMALL AND MICRO-HYDRO POWER SYSTEM
AG …
Lecture : 3 Year : IV
Tutorial : 1 Part : II
Practical : 1.5
Course Objective:
After the completion of this
course students will be able to locate
and predict the small and micro-hydro power sources for the fulfilment of
requirement of energy in Agricultural Engineering activities in rural areas.
This course also emphasizes in review, system design and development,
commissioning and testing of such rural micro-hydro power station and supply
electrical energy to operate tools, equipments and machineries used in
agricultural works.
1.
Review of Small and
Micro-Hydropower Systems in Nepal: [2 hours]
1.1. Importance of small and
Micro-hydropower Systems in Nepal
1.2. History of development
of Small Hydropower Systems
1.3. Components of Small
Hydropower Systems
1.4. Working Principle of
Small and Micro-hydropower Systems
2.
System Design for Small
and Micro Hydropower: [6 hours]
2.1. Pre-Feasibility and
Feasibility Survey
2.2. Hydrological Study
2.3. Assessment of Capacity
and Demand
2.4. Design of Systems
Components: Headwork, Headrace Cannel,
2.4.1. Desilting Basin,
fore-bay, Daily Pond age Basin, Spillways,
2.4.2. Penstock and Power house
3.
Mechanical Components in
Small an Micro Hydropower System: [6 hours]
3.1. Turbines for Small and
Micro Hydropower:
3.1.1. Types of Turbines
3.1.2. Specific Speed
3.1.3. Suction Head
3.1.4. Cavitations
3.1.5. Turbine Governor
3.2. Selection of Turbine:
3.2.1. Turbine Efficiency
3.2.2. System Efficiency
3.2.3. Performance Curve and
Turbine Selection
4.
Electrical Components in
Small and Micro-hydropower System: [15 hours]
4.1. Driving and Control
System:
4.1.1. Transformers
4.1.2. Load Controllers
4.1.3. Voltage Regulators
4.1.4. Protection System –
Current Cutout and Metering
4.2. Transmission and
Distribution System:
4.2.1. Review of Electric
Circuits
4.2.2. Components of
Transmission and Distribution System
4.2.3. Generators
4.2.4. Switchgears and Other
Protective Measures
4.3. Performance of Small and
Micro-hydro Power System:
4.3.1. Quality of Generation
and transmission Reliability
5.
Commissioning and
Testing: [3 hours]
5.1. Planning
5.2. Installations
5.3. Operation
5.4. Commissioning and
Testing
6.
Promotion
of Small and Micro-hydro Power based Electrification: [2 hours]
6.1. Load Factor
6.2. Unit cost of electricity
6.3. Tariff Setting
6.4. Financial
7.
Repair
and Maintenance of Small and Micro-hydro Power System: [3 hours]
7.1. Maintenance check list
7.2. Repair and maintenance
schedule for mechanical components
7.3. Repair and maintenance
schedule for electrical components
8.
Financial Evaluation: [6 hours]
8.1. Load factor
8.2. Unit cost of electricity
8.3. Tariff setting
8.4. Financial analysis of
small and hydropower system
9.
Promotion of Small and
Micro-hydro Power System in Nepal: [2 hours]
9.1. Existing policies and
strategies
9.2. Institutional arrangement
for small and micro hydropower promotion
9.3. Manufactures of
components of small and micro hydropower Nepal
Practical:
1.
Evaluation of performance characteristics of turbine at low head
high discharge and high head low discharge.
2.
Evaluation of efficiency of cross flow turbines.
3.
Design calculation for sizing of small and micro hydropower
system.
4.
Evaluation of performance of peltric set.
5.
Financial evaluation of small and micro hydropower system.
6.
Study visit: Study visit to operational small and micro hydropower
system in adjoining areas/vicinity if available (Involving intensive study of
hydraulic, mechanical and electrical components of the system. The students
required to submit a mini- project report based on design, operation,
management and financial aspects of the system).
References:
1.
Hervey, Adam. 1993. Micro-hydro Design Manual. Intermediate
Technology Publication, U.K.
2.
ICIMOD. 1999. Manuals on Micro-hydropower for Installation.
Commissioning Repair and Maintenance, ICIMOD, Kathmandu, Nepal.
3.
Inver, Allen R. 1986. Micro-hydro Source Book. NRECA International
Foundation, Washington D.C.
Evaluation Scheme:
The
questions will cover all the chapters in the Syllabus. The evaluation scheme
will be as indicated in the table below.
Chapter
|
Hours
|
Marks Distribution*
|
1
|
2
|
16
|
2
|
6
|
3
|
6
|
8
|
4
|
15
|
32
|
5
|
3
|
8
|
6
|
2
|
7
|
3
|
16
|
8
|
6
|
9
|
2
|
Total
|
45
|
80
|
*
Minor deviation on mark distribution can be made.
Source:- Department of Agricultural Engineering
