WO2017158506A1

WO2017158506A1 - System and method for generating hydroelectric power by utilization of turbines arranged in a cascaded configuration

Info

Publication number: WO2017158506A1
Application number: PCT/IB2017/051465
Authority: WO
Inventors: Rambabu KUNAPARAJU
Original assignee: Kunaparaju Rambabu
Priority date: 2016-03-15
Filing date: 2017-03-14
Publication date: 2017-09-21

Abstract

Exemplary embodiments of the present disclosure are directed towards a system and method for generating hydroelectric power by utilization of a series of multiple reaction turbines in a cascaded configuration. The system includes a water head race situated at certain height and a penstock, whereby the penstock connected to the water head race for allowing flow of pressurized water from the water head race by virtue of gravitational force and a series of plurality of reaction turbines connected to the same penstock in the cascaded configuration, whereby the series of plurality of reaction turbines allows the flow of pressurized water from the penstock and the flow of pressurized water strikes the series of plurality of reaction turbines with higher speed, and discharges the equal amount of water striking by means of rotation of the series of plurality of reaction turbines resulting in loss of water pressure from one reaction turbine to another reaction turbine with variation of distinct hydraulic heads in the cascaded configuration. The system further includes a series of plurality of generators connected to the series of plurality of reaction turbines in the cascaded configuration, whereby the series of plurality of reaction turbines configured to rotate for enabling the rotation of the series of plurality of generators for generating hydroelectric power.

Description

SYSTEM AND METHOD FOR GENERATING HYDROELECTRIC POWER BY UTILIZATION OF TURBINES ARRANGED IN A CASCADED CONFIGURATION

TECHNICAL FIELD

[001] The present disclosure relates to the field of generating electric power. More particularly, the present disclosure relates to a system and method for generating hydroelectric power by utilization of a series of multiple reaction turbines in a cascaded configuration.

BACKGROUND

[002] Consumption of electricity has increased in each and every sector like industrial, domestic, agriculture etc. This has led to a greater demand for power generation. Different methods available to generate power are hydro, thermal, solar, wind, nuclear etc. But all of these methods are used to generate power at a large scale and also they require more expenditure in terms of installation and configuration of heavy machinery.

[003] Typically, the hydro power generation plant working with single turbine with different penstocks only, these types of plants utilize single hydraulic head capacity. Conventional hydropower generation plants require a large amount of water for generating electricity. The conventional hydropower generation plant is highly expensive and also time and cost required to construct the project's cost is high.

[004] In the light of aforementioned discussion there exists a need for a system and method that would ameliorate or overcome the above mentioned disadvantages.

BRIEF SUMMARY

[005] The following presents a simplified summary of the disclosure in order to provide a basic understanding to the reader. This summary is not an extensive overview of the disclosure and it does not identify key/critical elements of the invention or delineate the scope of the invention. Its sole purpose is to present some concepts disclosed herein in a simplified form as a prelude to the more detailed description that is presented later.

[006] A more complete appreciation of the present invention and the scope thereof can be obtained from the accompanying drawings which are briefly summarized below and the following detailed description of the presently preferred embodiments.

[007] An objective of the present disclosure is directed towards a system configured for solving the power and energy problems without any pollution.

[008] Exemplary embodiments of the present disclosure are directed towards a system and method for generating hydroelectric power by utilization of a series of multiple reaction turbines in a cascaded configuration.

[009] According to an exemplary embodiment of the present disclosure, the system includes a water head race situated at certain height. The system further includes a penstock, whereby the penstock connected to the water head race for allowing the flow of pressurized water from the water head race by virtue of gravitational force.

[010] According to an exemplary embodiment of the present disclosure, the system further includes a series of plurality of reaction turbines connected to the same penstock in the cascaded configuration, whereby the series of plurality of reaction turbines allow the flow of pressurized water from the penstock and the flow of pressurized water strikes the series of plurality of reaction turbines with higher speed, and discharges the equal amount of stroked water by means of rotation of the series of plurality of reaction turbines resulting in loss of water pressure from one reaction turbine to another reaction turbine with variation of distinct hydraulic heads in the cascaded configuration.

[011] Another exemplary embodiment of the present disclosure, the system further includes a series of plurality of generators connected to the series of plurality of reaction turbines in the cascaded configuration, whereby the series of plurality of reaction turbines configured to rotate for enabling the rotation of the series of plurality of generators for generating hydroelectric power. [012] According to another exemplary embodiment of the present disclosure, the system further includes an inlet of the series of first reaction turbine connected to the centrifugal pump in place of the headrace for creating a pre-developed pressure.

[013] According to another exemplary embodiment of the present disclosure, the amount of water that enters into the first reaction turbine is equal to the amount of water discharged from the outlet of the last turbine.

BRIEF DESCRIPTION OF DRAWINGS

[014] Other objects and advantages of the present invention will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments, in conjunction with the accompanying drawings, wherein like reference numerals have been used to designate like elements, and wherein:

[015] FIG. 1A is a diagram depicting a system for generating hydroelectric power by utilization of a series of multiple reaction turbines in cascaded configuration, according to exemplary embodiments of the present disclosure.

[016] FIG. IB is a diagram depicting a system for generating hydroelectric power by utilization of a series of multiple reaction turbines with a centrifugal pump, according to exemplary embodiments of the present disclosure.

[017] FIG. 2 is a flow diagram depicting a method for generating hydroelectric power by utilization of a series of multiple reaction turbines in cascaded configuration, according to exemplary embodiments of the present disclosure.

DETAILED DESCRIPTION

[018] It is to be understood that the present disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The present disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.

[019] The use of "including", "comprising" or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. Further, the use of terms "first", "second", and "third", and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

[020] Referring to FIG. 1A is a diagram 100a, depicting a system for generating hydroelectric power by utilization of a series of multiple reaction turbines in cascaded configuration, according to exemplary embodiments of the present disclosure. The system includes a water head race 102, a penstock 104, a series of multiple reaction turbines 106a- 106n, distinct hydraulic heads 108a-108n and a series of multiple generators 110a- 11 On. The water head race 102 situated at certain height and the head race 102 may be referred as dams, reservoirs and water storage chambers etc. The penstock 104 connected to the water head race 102a for allowing the flow of pressurized water from the water head race 102 by virtue of gravitational force.

[021] As shown in FIG. 1A, the headrace 102 further includes a head gate 114 for controlling the flow of pressurized water released to the penstock 104. The series of multiple reaction turbines 106a- 106n connected to the penstock 104 with distinct hydraulic heads 108a-108n arranged in cascaded configuration. The series of multiple reaction turbines 106a- 106n allows the flow of pressurized water from the penstock 104. The flow of pressurized water strikes the series of multiple reaction turbines 106a-106n with higher speed and discharges the equal amount of stroked water to a tailrace 116 by means of rotation of the series of multiple reaction turbines 106a-106n resulting in loss of water pressure from one turbine 106a to another turbine 106b with variation of distinct hydraulic heads 108a-108n in cascaded configuration.

[022] As shown in FIG. 1A, the series of multiple generators HOa-l lOn connected to the series of multiple reaction turbines 106a-106n in cascaded configuration. The series of multiple reaction turbines 106a-106n further configured to rotate for enabling the rotation of the series of multiple generators 110a- 11 On for generating hydroelectric power. The amount of water that enters into the first reaction turbine 106a is equal to the amount of water discharged from the outlet of the last turbine 106n. The series of multiple generators 110a- 11 On further connected to the multiple distribution transformers 112a-112n for distributing the electric power to the consumers. The additional reaction turbine capacity is calculated based on the water pressure that strikes each reaction turbine is as follows,

Here, p= power generated

q= quantity of water

h= net head

g= gravitational force

w=specific gravity

n= efficiency of turbine

In series of turbine technology, first turbine pl= q*hf*g*w*n

Here, hf= loss of friction head

h=Hl-hf

h=H2-hf

It goes down to the "n"¹ "turbine as

h= Hn-hf

The total power generated from multiple turbines in cascaded configuration as

P= pl+ p2+ p3+ + pn

Here, P= total power generated from multiple turbines in cascaded configuration.

pl= power generated from first turbine.

p2= power generated from second turbine.

p3= power generated from third turbine.

pn= power generated from "n^th "turbine. [023] Referring to FIG. IB is a diagram 100b, depicting a system for generating hydroelectric power by utilization of a series of multiple reaction turbines with a centrifugal pump, according to exemplary embodiments of the present disclosure. For example the series of multiple reaction turbines 106a-106n connected with single penstock 104 in straight line position as shown in FIG. IB. The centrifugal pump 118 connected to an inlet of the series of first reaction turbine 106a in place of the headrace 102. The centrifugal pump 102 further creates pre-developed pressure, which is supplied to the inlet of the first reaction turbine 106a.

[024] Referring to FIG. 2 is a flow diagram 200, depicting a method for generating hydroelectric power by utilization of a series of multiple reaction turbines in cascaded configuration, according to exemplary embodiments of the present disclosure. The method starts at step 202 by allowing a flow of pressurized water from a water headrace positioned at a predetermined height through a penstock by virtue of gravitational force. The method continues to next step 204 by discharging the flow of pressurized water from the penstock to the series of multiple reaction turbines. The method continues to next step 206 by enabling the flow of pressurized water to strike the series of multiple reaction turbines with higher speed.

[025] As shown in FIG. 2, the method continues to next step 208 by discharging the equal amount of water striking the series of multiple reaction turbines from the series of plurality of reaction turbines. The method continues to next step 210 by providing a loss of water pressure from one reaction turbine to another reaction turbine with variation of distinct hydraulic heads. The method continues to next step 212 by generating hydroelectric power individually by the series of generators connected to the series of multiple reaction turbines.

[026] The present disclosure has been described in terms of certain preferred embodiments and illustrations thereof, other embodiments and modifications to preferred embodiments may be possible that are within the principles and spirit of the invention. The above descriptions and figures are therefore to be regarded as illustrative and not restrictive.

[027] Thus the scope of the present disclosure is defined by the appended claims and includes both combinations and sub combinations of the various features described herein above as well as variations and modifications thereof, which would occur to persons skilled in the art upon reading the foregoing description.

Claims

CLAIMS What is claimed is:

1. A system for generating hydroelectric power by utilization of a series of multiple reaction turbines arranged in a cascaded configuration, comprising: a water head race situated at certain height; a penstock connected to the water head race for allowing the flow of pressurized water from the water head race by virtue of gravitational force; a series of plurality of reaction turbines connected to the same penstock in the cascaded configuration, whereby the series of plurality of reaction turbines allow the flow of pressurized water from the penstock and the flow of pressurized water strikes the series of plurality of reaction turbines with higher speed and the equal amount of water striking discharges by means of rotation of the series of plurality of reaction turbines resulting in loss of water pressure from one reaction turbine to another reaction turbine with variation of distinct hydraulic heads in the cascaded configuration; and a series of plurality of generators connected to the series of plurality of reaction turbines in the cascaded configuration, whereby the series of plurality of reaction turbines configured to rotate for enabling the rotation of the series of plurality of generators for generating hydroelectric power.

2. The system of claim 1, wherein the penstock further connected with distinct hydraulic heads in the cascaded configuration.

3. The system of claim 1, wherein the series of plurality of reaction turbines discharges the water striking through the same penstock to a tailrace.

4. The system of claim 1, wherein the headrace further includes a head gate for controlling the flow of pressurized water released to the penstock.

5. The system of claim 1, wherein the amount of water that enters into the first reaction turbine is equal to the amount of water discharged from the outlet of the last turbine.

6. A system for generating hydroelectric power by utilization of a series of multiple reaction turbines with a centrifugal pump, comprising: an inlet of the series of first reaction turbine connected to the centrifugal pump, whereby the centrifugal pump further creates pre- developed pressure; a series of plurality of reaction turbines connected to the same penstock in the cascaded configuration, whereby the series of plurality of reaction turbines allow the flow of pressurized water from the penstock and the flow of pressurized water strikes the series of plurality of reaction turbines with higher speed and the equal amount of water striking discharges by means of rotation of the series of plurality of reaction turbines resulting in loss of water pressure from one reaction turbine to another reaction turbine with variation of distinct hydraulic heads in the cascaded configuration; and a series of plurality of generators connected to the series of plurality of reaction turbines in the cascaded configuration, whereby the series of plurality of reaction turbines configured to rotate for enabling the rotation of the series of plurality of generators for generating hydroelectric power.

7. The system of claim 1, wherein the centrifugal pump supplies the pre-developed pressure to the inlet of the first reaction turbine.

8. A method for generating hydroelectric power by utilization of a series of multiple reaction turbines in a cascaded configuration, comprising: allowing a flow of pressurized water from a water headrace through a penstock by virtue of gravitational force; discharging the flow of pressurized water from the penstock to the series of plurality of reaction turbines; enabling the flow of pressurized water to strike the series of plurality of reaction turbines with higher speed; discharging the equal amount of water striking the series of plurality of reaction turbines from the series of plurality of reaction turbines; providing a loss of water pressure from one reaction turbine to another reaction turbine with variation of distinct hydraulic heads; and generating hydroelectric power individually by the series of generators connected to the series of plurality of reaction turbines. .

9. The method of claim 8, wherein the centrifugal pump connected to an inlet of the series of first reaction turbine in place of the headrace results in the creation of pre- developed pressure.