Transcript report_micora

Micro Hydel Turbine
Prof. P. M. V. Subbarao
Prof.Sanjeev Jain
Prof.Santosh Satya
Anand Krishnan Plappally
IIT, DELHI
Mangal Turbine on River Sajnam, Bhailoni Lod Village
Lalitpur Dist.
Dr S K Saha ,IAS Reviewing the Mangal water Wheel
Objective:
VVisits to the different Sites in Gharwal area and
eEstimation of hydro potential of these sites.
MMeasurement of geometry and performance of the existing water wheels.
DDevelopment of improved design of water wheel to
increase the efficiency of the wheel.
decrease the cost of the wheel, and
increase the reliability of the system.
DDevelopment of various utility devices using Hydel Power other than the Electric power.
IImprovisation of Mangal Turbine
HHISTORY
The first reference to its use dates back to about 4000 B.C., where, in a poem by an early Greek writer, Antipater, it tells about the freedom from
the toil of young women who operated small handmills to grind corn.
AAs early as the first century, waterwheels of the vertical design were replacing the horizontal waterwheel.
An early horizontal-wheeled watermill used for grinding grain in Greece was the called Norse Mill. In Syria, the watermills were called "noriahs".
They were used for running mills to process cotton into cloth.
OThe three distinct types of water mills,
The simplest and probably the earliest was a vertical wheel with paddles on which the force of the stream acted.
Next was the horizontal wheel used for driving a millstone through a vertical shaft attached directly to the wheel .
Third was the geared mill driven by a vertical waterwheel with a horizontal shaft.
Applications:
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Grinding Grains
Rural Electrification
Irrigation
De Husking
Cotton combing
Rice Huller
Other Agriculture related machines
Contact Agencies in India
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HESCO is a NGO working on these perennial
hydraulic resources in the TEHRI GARHWAL
(UTTARANCHAL) for providing electrical and
mechanical power to rural public.
SIDH is a NGO in Mussorie.
CIMMYT (INDIA) , DELHI
There are other organizations.
Past Experience and Current Work
•Design, Fabrication and Erection of 5 kW Horizontal
Axis Hydro-Turbo Pump on a small river near Jhansi.
•Designing , Fabricating and Testing of 3.5 kW
Horizontal Axis Hydro-Turbo Pump cum Generator on a
Drainage Canal at Sonipat.
•Design, Fabrication of 3.5 kW Vertical Axis HydroTurbo Atta Chakki cum Alternator at Lacchiwala, near
Dehradun.
•Generation of Data Base of various Micro Hydel
Resources in Uttaranchal. 15 sites.
•Design of Micro Hydel stations. - Three sites.
Start
Specify flow rate and head
Calculate flow power
Power requirement?
Flow or head enough for
required power
production
Yes
No
Require water storage and P E utilization?
Power can be produced
Start Turbine Design
`
Select turbine speed as per power consuming device
No. of vanes to be kept odd
Material for manufacture according to availability: (best M, S material)
Design for assembly of the system; turbine, power transmission devices, pump or alternator as required
Install & stop
Comparative chart of Old and Improved Mangal Turbine
Specifications
Farmers Version Mangal turbine
New Design I Mangal Turbine
Weight of turbine
1500 kg
350 kg
Outer diameter of wheel
4.0 m
1.26m
Wheel speed
13 RPM
70 RPM
No. Of blades
24
14
Head
1.5m
1.5m
Water consumption
1800 lit/sec
500 lit/sec
Flow turning angle
110o
(One type blade only)
380mm
Material
70o for Big blade
49o for Small blade
Big blade = 670 mm
Small blade = 435 mm
Big blade = 235mm
Small blade = 100 mm
3 stages
Gear Ratio 1:125
M.S.
Specific Speed
75 RPM
3771RPM
22 lit/sec
19.5 lit/sec
Output power
6 KW
6 KW
Efficiency
22.7%
72%
Cost of wheel
Cost of gear box
80,000
120,000
7,000
14,000
Blade width
Blade depth
Gear box
Pump discharge
100mm
2 stages
Gear Ratio 1: 21.54
M.S.
Schematic View of Micro Hydel Turbine having horizontal runner
Improved Design(version-1) of Mangal Turbine by IIT
Delhi on River Sajnam,Lalitpur Dist.Bhailoni Lod Village
Mangal Turbine (Old design)
New Turbine Design
Specifications
Weight of turbine
Improved Mangal turbine
Version 2
450 kg
Improved Mangal Turbine
Version 1
350 kg
Outer diameter of wheel
1.5 m
1.26m
Wheel speed
50 RPM
70 RPM
No. Of blades
15
14
Head
1m
1.5m
Water consumption
500 lit/sec
500 lit/sec
Flow turning angle
1290
Blade width
520mm
110o
(One type blade only)
380mm
Blade depth
145 mm
100mm
Gear box
2 stages
Gear Ratio 1:30
M.S.
2 stages
Gear Ratio 1: 21.54
M.S.
Material
Design Principle
Poncelot inlet / Girard outlet
Pelton/impulse wheel
Efficiency
82%
68%
Poncelet inlet/Girard
outlet
Cost of wheel
Cost of gear box
Rs10,000
Rs25,000
Rs7,000
Rs14,000
Figure Showing Gharat having vertical runner
Top Bearing
6” Pulley
40” Pulley
12” Pulley
Main Shaft
Lower Bearing
Grinding Wheel
Bush Bearing
Canal
Penstock
Alternator
18” Pulley
12” Pulley
Water Wheel
Wooden Base
EXISTING DESIGN
Grinder
adjusting
lever
Generator
Gear Box
Main Shaft
Canal
Forbay
Grinding Wheel
Bush Bearing
12” Pulley
10” Pulley
Penstock
Water Wheel
Wooden Base
New Design
Grinder
adjusting
lever
Site visited
Head
available
(in M)
Flow
Rate
(l/sec)
Wheel
Speed
In RPM
Output
Speed
In RPM
Diameter
of wheel
In CM
No. of
Blades
Power
Output
In KW
Applications
Sangtiyawala
1.40
480
90
1500
106
16
1
Chakki,
Alternator
Bhogpur
Gharat (1)
2.30
889
95
1500
106
16
2
Dhan Cutter,
Alternator
Bhogpur
Gharat (2)
2.30
645
104
104
84
29
-
Chakki
Donkwala (1)
1.50
-
70
1500
100
30
1
Chakki,
Alternator
Donkwala (2)
1.50
-
90
1500
97
30
1
Chakki,
Alternator
Donkwala (3)
1.25
-
95
1500
90
29
1
Chakki,
Alternator
Naya Gharat
,Lacchiwala
1.85
634
50
1500
107
11
5
Chakki, Dhan
cutter,
Alternator
Unnat Gharat
0.6
352
100
100
90
29
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Chakki
New
Design
1.8 + 1.0
342
100
1500
73
11
3
Chakki,
Alternator
FLOW FROM PENSTOCK
(INLET)
Vu1
u1
1
w1
V1
OUTLET
w2
V2
TURBINE WHEEL
u2
15O
69O
19 cm
5 cm
Vu2
ANGLE OF TURN = 1- 2
= 165O – 69O
= 96O
DIMENSION OF BLADE
VELOCITY TRIANGLES
Specification of upgraded wheel for Garwhal area
Bevel Gear & Pinion
G.R = 1
First pair
G.R = 3.88
Second pair
G.R = 3.88
Output Shaft
1500 rpm
To Alternator
Input Shaft
100 RPM
To Turbine
wheel
Gear box arrangement for Micro Hydel Turbine
Computational Flow Anlysis
Blade Profile-1
40
35
Blade Width (cm)
30
25
20
15
10
5
0
0
5
10
15
20
Blade depth (cm )
25
30