Tubular Hydro Turbine For Low Water Head

This kind of turbine could be used for fluids of 4-11 water head.

Model                       Water head (m)    Flow (M3/s)      
GD-WZ-20-3KW               4                       0.136        
GD-WZ-20-5KW                6                      0.151      
GD-WZ-20-6KW               7                       0.156        
GD-WZ-20-8KW               9                       0.161            
GD-WZ-20-10KW            11                     0.165       

For more info please contact: thunderwitmake@gmail.com or sale@witmake.com

1000 USD per kw cost?

Why should we consider hydro power when we come to renewable energy?

--There are 2 reasons

1.  Cheap cost

In China rural places ,when pico micro hydro turbine comes to use, it only cost 5000RMB~8000RMB per kw. 

And all you need to pay for a year is 10USD maintain fees.

2. Long run

The life period of hydro tubine could be use for over 30 years. Perfect, right? 

For more information please contact:  thunderwitmake@gmail.com

Integrated micro hydro turbine system

Integrated Micro Hydro turbines

SHANGHAI WITMAKE INDUSTRY CO.,LTD.  
R/1207, No.6, Huiyang Mansion, Lane 1139,
  Pudong Ave., Shanghai 200135 P.R.China
Tel:（86 21）58213600，58213633
Fax: (86 21) 58213677
E-mail:sale@witmake.com
http://www.witmake.com 

Running water has power. A micro hydro turbine can turn a stream's potential energy into electricity, satisfying people's need for power in remote area. If you can find a steam/river with some water head and cubic water fluid nearby, you can benefit from it.
 

Micro hydro power is generally identified as system which power is under 100kw. Micro hydro could supply power solutions for the remote mountain residents/national park/rural village/school/military camp/outdoor camp/etc which possess micro hydro resources. 0.1kw power could satisfy lighting,TV,charge and other basic needs; higher power could make the house or village uses different electrical household appliances, meanwhile it could supply power for small plant for manufacture use.
 
Sample 

Clean, renewable and sustainable, micro hydro turbine can make you benefit from the power of the nature.
The lack of energy supplies in rural areas is a chronic problem. In many developing countries less than 10% of the rural population has access to electricity. Rural electrification through conventional means such as grid connection or diesel generators is very costly. Fortunately, abundant water resources for energy production are available in some poor countries.
Micro hydro is perhaps the most mature of the modern small-scale decentralised energy supply technologies used in developing countries. There are thought to be tens of thousands of plant in the “micro” range operating successfully in China, and significant numbers are operated in wide ranging countries such as Nepal, Sri Lanka, Pakistan, Vietnam and Peru. This experience shows that in certain circumstances micro hydro can be profitable in financial terms, while at others, even unprofitable plant can exhibit such strong positive impacts on the lives of poor people.
The advantage of using micro hydro turbine power systems:
Stable costs: Comparing with gas or oil power generation, the running cost is nearly free and stable. You can consider the fluctuant prices of oil and gas. Even the electricity price charged by the power company is arising all the time.
Short transmission lines. The micro hydro power system do not need long lines cause its users are nearby. Generally 800m is long enough.
Long running life. Generally a micro hydro system could run for over 20 years, longer than other power generation systems. In some places, using micro hydro power can also get public finance encourage policy support.
 
Schematic plan 


Brief View
Although we can sort micro hydro turbines by its type, we think it is better to sort them by usage. We sort them into 3 kinds: home use, village use and factory use.
Special turbines could be tailored by sending us the parameters of the local stream.
Home use
This category covers turbines under 800w, single-phase.
Water head: 4-18m
Flow rate: 0.003-0.05m3/s

   
XJ Series
Inclined micro hydro turbine
Single nozzle GD Series
Tubular type micro hydro turbine New type
Tube type micro hydro turbine 
   
ZD Series
Kaplan type micro hydro turbine  

Village use
This category covers turbines over 800w, single-phase.
Water head: 4-35m
Flow rate: 0.08-0.165m3/s

   
XJ Series
Inclined micro hydro turbine
Single nozzle GD Series
Tubular type micro hydro turbine XJ Series
Inclined micro hydro turbine
Double nozzles 
   
ZD Series
Kaplan type micro hydro turbine HL Series
Francis type Micro hydro turbine  


Industry use
   
XJ Series
Inclined micro hydro turbine
Double nozzles SJ Series
Double Impulse type micro hydro turbine SL Series
Double wheel pelton type micro hydro turbine 
   
HL Series
Francis micro hydro turbine HL Series
Francis micro hycro turbine horizontal  


Specifications
Below table shows parameters of some of our products. 220V or 400V ,50HZ
More turbines will be customized base on order.

Item No. Model Water head (m) Flow (M3/s) Generator (W) Phase Speed (r/min) Inlet DN (mm) 
Home use 
1 XJ14-0.2DCT4-Z 10-14 0.003-0.004 200 Single Phase 1500 50 
2 XJ14-0.3DCT4-Z 12-14 0.003-0.005 300 Single Phase 1500 50 
3 XJ18-0.5DCT4-Z 12-18 0.005-0.007 500 Single Phase 1500 50-75 
4 XJ18-0.75DCT4-Z 14-18 0.005-0.008 750 Single Phase 1500 75 
5 QS-LZ-12-0.55KW 2-5 0.020-0.050 550 Single Phase 1500 150-250 
Village use 
6 XJ22-1.1DCT4-Z 16-22 0.008-0.010 1100 Single Phase 1500 100 
7 XJ22-1.1DCTH4-Z 15 0.010-0.015 1100 Single Phase 1500 125-150 
8 XJ25-1.5DCT4-Z 18-25 0.008-0.011 1500 Single Phase 1500 125 
9 XJ25-1.5DCTH4-Z 15 0.012-0.018 1500 Single Phase 1500 125-150 
10 XJ25-3.0DCT4-Z 25-35 0.015-0.019 3000 Single Phase 1500 125-150 
11 XJ25-3.0DCTF4-Z 18-20 0.018-0.030 3000 Single Phase 1500 150 
12 XJ28-6.0DCT4/6-Z 28-35 0.030-0.038 6000 Single Phase 1500 150-200 
13 XJ28-6.0DCTF4/6-Z 18-20 0.038-0.050 6000 Single Phase 1000 200 
14 XJ30-10DCT4-Z 30-38 0.040-0.050 10000 Single Phase 1500 200-250 
15 XJ30-10DCTF4/6-Z 25-30 0.050-0.060 10000 Single Phase 1000 200-250 
16 DG11-3.0DC T 4-Z 11 0.045 3000 Single Phase 1500 150 
17 GD-WZ-20-3KW 4 0.136 3000 Single Phase 1000 250 
19 GD-WZ-20-5KW 6 0.151 5000 Single Phase 1500 300 
20 GD-WZ-20-6KW 7 0.156 6000 Single Phase 1500 300 
21 GD-WZ-20-8KW 9 0.161 8000 Single Phase 1500 300 
22 GD-WZ-20-10KW 11 0.165 10000 Single Phase 1500 300 
Industry use 
23 XJ30-12SCTF4-Z 28-35 0.050-0.060 12000 Three Phase 1500 200-250 
24 XJ30-15SCTF4/6-Z 30-40 0.060-0.070 15000 Three Phase 1500/1000 200 
25 XJ30-20SCTF4/6-Z 30-45 0.060-0.100 20000 Three Phase 1500/1000 250-300 
26 XJ38-30SCTF4/6-Z 38-45 0.090-0.120 30000 Three Phase
 1500/1000 250-300 
Notice:
We customize micro hydro turbine systems based on customer's local situations(water head and flow rate), and can adjust the product's voltage and frequency as well.
Applications
Household electronic
  
Lighting Refrigerater 
  
TV Washing machine 
With micro hydro, you can generate power for household use, such as light, washer, TV, refrigerator, etc.
Some of the African buyers buy micro turbine to refrigerate the beer. In their words, they "can bear no light, but they could not bear having no cold beer".
Small mill production
  
By using electricity generated by micro hydro turbine set, the local people can develop local industry which could not be done before due to out of the grid.

Install
 
Typical installation of a inclined micro hydro turbine 
 
Micro hydro power house sketch 



 
Sample: 10kw inclined hydro power station 
This power station utilize the irrigation drain water by installing a XJ30-10DCT4-Z hydro turbine set. Its power is used for the nearby families. This type turbine has two nozzle. By cut off one nozzle, the power turns to a half, and water consumption turns to a half, too.
Parameters: Water head: 40 M
Flow rate: 0.04cubic meters per second. 
Output :10kw
Volume of forebay: 200 cubic meters.
Penstock:DN 200, cement pipe.
Q&A

How does it work?
Water from the river is channelled through a settling basin, which helps to remove sediment that could harm the turbine. The water then flows into the Forebay Tank where it is directed downhill through a pipe called a penstock. When the water reaches the bottom, it drives a specially designed turbine to produce the electricity.

What does it cost?
Costs vary depending upon the particular project, but as a rough guide, these projects cost just over $1200 per kilowatt of power generated. So a system with a capacity of six kilowatts - enough to drive a mill and provide electric light to a community of 20 families - would cost about $8000 (The cost depends on local area economy).
Once the system is in operation, local people pay a small charge to use the electricity. This covers maintenance and the eventual cost of replacement.

Why is it needed?
Of course, every community’s particular needs are different. But in general, access to energy is a vital stage in the development of remote villages like these.
It can lead to swift and significant improvements in education, sanitation, healthcare and the overall standard of living. These benefits are achieved both directly - as in the provision of light - and indirectly - as the time and money that people save is redirected into other projects.

How long will it last?
Micro-hydro systems like these are designed to operate for a minimum of twenty years if they are properly looked after. And by making a small charge for use, communities can accumulate enough money to pay for the replacement of the unit at the end of its useful life.
Once schemes are set up, they should continue to function indefinitely without any more external funding.

What’s the environmental impact?
Unlike traditional power stations that use fossil fuels, micro-hydro generators have practically no effect on the environment. And because they don’t depend on dams to store and direct water, they’re also better for the environment than large-scale hydro-electric stations.
In fact, by reducing the need to cut down trees for firewood and increasing farming efficiency, micro-hydro has a positive effect on the local environment.

What can we do if we don't have enough flow?
You can build a reservoir to store the water and generate power when needed.

For example, there is a micro water source neer the resident. During the dry season it only have a 0.0006 m3/s flow, and the water head is 14 meter. How to design a micro hydro system to solve the lighting problem?
Calculation as below:
Each day we can storage water: 0.6X3600X24=51840kg=52 cubic meters.
Choose 300w type micro hydro turbine set. It consume 3 kg waters per second
Water consumption in a hour: 3X3600=10.8 cubic meters.
Power period= 52/10.8=4.8hours.
Generator output=14X3X5=210w 
Thus we can satisfy the basic lighting needs for a family.
According the above calculation, we need to build a 30CMS pond( 52 - 5*0.6*3600).