Comments on: A Reader Asks: Isn’t there a Hydro Turbine with Variable Speed? http://smallhydro.com/200907/small-micro-hydro/a-reader-asks-isnt-there-a-hydro-turbine-with-variable-speed/ Your Online Small Hydroelectric Power Resource! Mon, 23 Aug 2010 11:12:39 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Brendan Glanfield http://smallhydro.com/200907/small-micro-hydro/a-reader-asks-isnt-there-a-hydro-turbine-with-variable-speed/comment-page-1/#comment-191 Brendan Glanfield Mon, 29 Mar 2010 07:13:18 +0000 http://smallhydro.com/?p=1798#comment-191 HI guys I have 25 mtrs of head at 30 liters per second what type of mini hydro system is the best for efficency and reliability. Thanks Brendan HI guys I have 25 mtrs of head at 30 liters per second what type of mini hydro system is the best for efficency and reliability.
Thanks
Brendan

]]> By: Mohsin Iqbal http://smallhydro.com/200907/small-micro-hydro/a-reader-asks-isnt-there-a-hydro-turbine-with-variable-speed/comment-page-1/#comment-172 Mohsin Iqbal Sat, 02 Jan 2010 17:34:34 +0000 http://smallhydro.com/?p=1798#comment-172 Is there any turbine vendor interested in BOT basis supply of a suitable turbine(s) for a small dam (about 250 feet head) in Pakistan? We are in contact with the authorities and have good chance of acquiring the contract. Is there any turbine vendor interested in BOT basis supply of a suitable turbine(s) for a small dam (about 250 feet head) in Pakistan? We are in contact with the authorities and have good chance of acquiring the contract.

]]> By: Jess http://smallhydro.com/200907/small-micro-hydro/a-reader-asks-isnt-there-a-hydro-turbine-with-variable-speed/comment-page-1/#comment-138 Jess Fri, 25 Sep 2009 03:59:35 +0000 http://smallhydro.com/?p=1798#comment-138 Dear Chetan, If the company you are referring to is "Water pumps WP OY" it looks like their low head compact turbine are low head tube turbine are in the right range for your project. Both of them look like a semi-Kaplan designs which would be applicable for this lower head high flow site. One of the features that they report is that their turbine designs are fairly compact and can be installed at pretty much any angle without much interference with your infrastructure since they are using a bulb turbine inside the tube. This compactness, can lead to a more eco-friendly site since the unit can be placed below ground in a vault. Although their turbine is not the only bulb design on the market it is pretty small. A small S type Kaplan unit may be a viable option as well. Your head pressure is right, but the flow is about half what you need if you were to use a VA Tech - Eco-bulb type turbine. So that is out. Send me an email if you have more info to go over about your site and turbine choice. Sincererly, Jess Dear Chetan,
If the company you are referring to is “Water pumps WP OY” it looks like their low head compact turbine are low head tube turbine are in the right range for your project. Both of them look like a semi-Kaplan designs which would be applicable for this lower head high flow site.

One of the features that they report is that their turbine designs are fairly compact and can be installed at pretty much any angle without much interference with your infrastructure since they are using a bulb turbine inside the tube.

This compactness, can lead to a more eco-friendly site since the unit can be placed below ground in a vault. Although their turbine is not the only bulb design on the market it is pretty small. A small S type Kaplan unit may be a viable option as well.

Your head pressure is right, but the flow is about half what you need if you were to use a VA Tech – Eco-bulb type turbine. So that is out.

Send me an email if you have more info to go over about your site and turbine choice.

Sincererly,
Jess

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