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A Low Pressure Module Of A Steam Turbine Capable Of Being Used Along With Water Cooled Condenser And Air Cooled Condenser With High Efficiency

Abstract: ABSTRACT: A low pressure module of a steam turbine capable of being used along with water cooled condenser and air cooled condenser with high efficiency is disclosed as shown in figure 8, wherein the cost and time involved in the development of low pressure module seperately for water cooled condenser and air cooled condenser applications is reduced by providing a low pressure module with three stages for water cooled condenser applications and using the same low pressure module by removing the third stage (i.e., with two stages) for air cooled condenser applications. As a result, a low pressure module which can be used both with water cooled condenser and air cooled condenser without compromising much on efficiency is obtained.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
10 March 2014
Publication Number
38/2015
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2022-08-24
Renewal Date

Applicants

TRIVENI TURBINE LIMITED
12A, PEENYA INDUSTRIAL AREA, BANGALORE - 560 058

Inventors

1. SREEKUMAR P
12A, PEENYA INDUSTRIAL AREA, BANGALORE - 560 058
2. RUKALA RAGHAVENDRA SETTY
12A, PEENYA INDUSTRIAL AREA, BANGALORE - 560 058

Specification

FIELD OF THE INVENTION: The present invention relates to the field of low pressure module of a steam turbine. Particularly, the present invention relates to low pressure module capable of being used along with water cooled condenser and air cooled condenser. TERMINOLOGY & FORMULAS USED: U-Peripheral velocity of rotor; C-Steam velocity; Ct-Tangential steam velocity; Ca-Axial Steam velocity; and Delta h- Enthalpy change. The formulas employed in doing mean line calculations are as follows: 1) Loading coefficient-Delta h/U2 2) Peripheral velocity of rotor (U) = 3.147*D*N/60000 m/s Where D=Rotor Hub Dia; N=speed of rotor in rpm. 3) Steam velocity C- 44.7 *(Delta h)° 5 4) Height of the blades in a stage (H) = 2 Q/3.147*D*sina*e*C Where Q=Volumetric flow rate in each stage (m3 /sec); D= Rotor Hub Dia; a= Blade or Nozzle Inlet angle; e=Degree of admission(Projected Area of nozzles/Total area of moving blades); C=Steam velocity (Ca-Axial velocity, Ct-Tangential velocity). 5) Flow coefficient- Ca/U. DEFINITIONS OF TERMS USED: Meridional Plane: A plane cutting the turbo machine through diametric line and longitudinal axis. Pitch: Circumference of the blade (2*Pi*r)/No.of blades in a row. Circumference of the blade depends on blade height (i.e., at hub, mean or tip). Stage: Stage herein refers to a combination of blades and nozzles. Reaction: Enthalpy drop across the rows of blades/ Enthalpy drop across the stage. Lean: The angle at which the nozzles are placed with respect to vertical in nozzle diaphragm. Spanwise Reaction: Reaction across different cross-section of blade length. BACKGROUND OF THE INVENTION: Figure 1 illustrates a sectional view of two adjacent moving blades depicting typical blade features. The airfoil sections of two adjacent moving blades (10 and 12) is disclosed wherein the blades include a convex suction side (14 and 16), a concave pressure side (18 and 20), a leading edge (22 and 24) and a trailing edge (26 and 28). The parameters which define the geometry and configuration of the moving blades in a row are as follows: The distance between trailing edges (26 and 28) of two adjacent blades (10 and 12) typically referred to as pitch is indicated by a letter 'PI'. The axial length of the blade typically referred to as width is indicated by a letter 'Wl'. The inlet and exit blade angles are indicated by letters

Documents

Application Documents

# Name Date
1 1216-CHE-2014 FORM-5 10-03-2014.pdf 2014-03-10
1 1216-CHE-2014-FORM 4 [27-03-2025(online)].pdf 2025-03-27
2 1216-CHE-2014 FORM-3 10-03-2014.pdf 2014-03-10
2 1216-CHE-2014-IntimationOfGrant24-08-2022.pdf 2022-08-24
3 1216-CHE-2014-PatentCertificate24-08-2022.pdf 2022-08-24
3 1216-CHE-2014 FORM-2 10-03-2014.pdf 2014-03-10
4 1216-CHE-2014-Annexure [05-08-2022(online)].pdf 2022-08-05
4 1216-CHE-2014 FORM-1 10-03-2014.pdf 2014-03-10
5 1216-CHE-2014-Written submissions and relevant documents [05-08-2022(online)].pdf 2022-08-05
5 1216-CHE-2014 DRAWINGS 10-03-2014.pdf 2014-03-10
6 1216-CHE-2014-Correspondence to notify the Controller [05-07-2022(online)].pdf 2022-07-05
6 1216-CHE-2014 DESCRIPTION (COMPLETE) 10-03-2014.pdf 2014-03-10
7 1216-CHE-2014-US(14)-ExtendedHearingNotice-(HearingDate-04-08-2022).pdf 2022-06-28
7 1216-CHE-2014 CORRESPONDENCE OTHERS 10-03-2014.pdf 2014-03-10
8 1216-CHE-2014-Annexure [17-06-2022(online)].pdf 2022-06-17
8 1216-CHE-2014 CLAIMS 10-03-2014.pdf 2014-03-10
9 1216-CHE-2014 ABSTRACT 10-03-2014.pdf 2014-03-10
9 1216-CHE-2014-Written submissions and relevant documents [17-06-2022(online)].pdf 2022-06-17
10 1216-CHE-2014-Correspondence to notify the Controller [09-05-2022(online)].pdf 2022-05-09
10 Form-18(Online).pdf 2015-02-05
11 1216-CHE-2014-FER.pdf 2019-03-25
11 1216-CHE-2014-US(14)-HearingNotice-(HearingDate-02-06-2022).pdf 2022-04-29
12 1216-CHE-2014-ABSTRACT [25-09-2019(online)].pdf 2019-09-25
12 1216-CHE-2014-SEQUENCE LISTING [25-09-2019(online)].txt 2019-09-25
13 1216-CHE-2014-CLAIMS [25-09-2019(online)].pdf 2019-09-25
13 1216-CHE-2014-OTHERS [25-09-2019(online)].pdf 2019-09-25
14 1216-CHE-2014-COMPLETE SPECIFICATION [25-09-2019(online)].pdf 2019-09-25
14 1216-CHE-2014-FER_SER_REPLY [25-09-2019(online)].pdf 2019-09-25
15 1216-CHE-2014-CORRESPONDENCE [25-09-2019(online)].pdf 2019-09-25
15 1216-CHE-2014-DRAWING [25-09-2019(online)].pdf 2019-09-25
16 1216-CHE-2014-CORRESPONDENCE [25-09-2019(online)].pdf 2019-09-25
16 1216-CHE-2014-DRAWING [25-09-2019(online)].pdf 2019-09-25
17 1216-CHE-2014-FER_SER_REPLY [25-09-2019(online)].pdf 2019-09-25
17 1216-CHE-2014-COMPLETE SPECIFICATION [25-09-2019(online)].pdf 2019-09-25
18 1216-CHE-2014-CLAIMS [25-09-2019(online)].pdf 2019-09-25
18 1216-CHE-2014-OTHERS [25-09-2019(online)].pdf 2019-09-25
19 1216-CHE-2014-ABSTRACT [25-09-2019(online)].pdf 2019-09-25
19 1216-CHE-2014-SEQUENCE LISTING [25-09-2019(online)].txt 2019-09-25
20 1216-CHE-2014-FER.pdf 2019-03-25
20 1216-CHE-2014-US(14)-HearingNotice-(HearingDate-02-06-2022).pdf 2022-04-29
21 1216-CHE-2014-Correspondence to notify the Controller [09-05-2022(online)].pdf 2022-05-09
21 Form-18(Online).pdf 2015-02-05
22 1216-CHE-2014 ABSTRACT 10-03-2014.pdf 2014-03-10
22 1216-CHE-2014-Written submissions and relevant documents [17-06-2022(online)].pdf 2022-06-17
23 1216-CHE-2014 CLAIMS 10-03-2014.pdf 2014-03-10
23 1216-CHE-2014-Annexure [17-06-2022(online)].pdf 2022-06-17
24 1216-CHE-2014-US(14)-ExtendedHearingNotice-(HearingDate-04-08-2022).pdf 2022-06-28
24 1216-CHE-2014 CORRESPONDENCE OTHERS 10-03-2014.pdf 2014-03-10
25 1216-CHE-2014-Correspondence to notify the Controller [05-07-2022(online)].pdf 2022-07-05
25 1216-CHE-2014 DESCRIPTION (COMPLETE) 10-03-2014.pdf 2014-03-10
26 1216-CHE-2014-Written submissions and relevant documents [05-08-2022(online)].pdf 2022-08-05
26 1216-CHE-2014 DRAWINGS 10-03-2014.pdf 2014-03-10
27 1216-CHE-2014-Annexure [05-08-2022(online)].pdf 2022-08-05
27 1216-CHE-2014 FORM-1 10-03-2014.pdf 2014-03-10
28 1216-CHE-2014-PatentCertificate24-08-2022.pdf 2022-08-24
28 1216-CHE-2014 FORM-2 10-03-2014.pdf 2014-03-10
29 1216-CHE-2014-IntimationOfGrant24-08-2022.pdf 2022-08-24
29 1216-CHE-2014 FORM-3 10-03-2014.pdf 2014-03-10
30 1216-CHE-2014-FORM 4 [27-03-2025(online)].pdf 2025-03-27
30 1216-CHE-2014 FORM-5 10-03-2014.pdf 2014-03-10

Search Strategy

1 1216_04-09-2018.pdf

ERegister / Renewals

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