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Strong curved wing section of sea temperature difference energy-solar energy reboil circulation power generating steam turbine

A technology of temperature difference energy and solar energy, applied in the field of energy development, can solve the problems of performance deterioration, airfoil stall, drag coefficient increase, etc., and achieve the effect of performance improvement

Inactive Publication Date: 2006-04-12
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the lift coefficient of the airfoil will drop significantly, the drag coefficient will increase sharply, and the efficiency of the turbine will be greatly reduced, making it difficult to meet the design requirements.
At present, the airfoils used in the design of steam turbines

Method used

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  • Strong curved wing section of sea temperature difference energy-solar energy reboil circulation power generating steam turbine
  • Strong curved wing section of sea temperature difference energy-solar energy reboil circulation power generating steam turbine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The specific implementation of the present invention will be further described below with the airfoil chord length as the unit 1 . After taking the chord length of the airfoil as the unit 1, the coordinates of the blades are listed in Table 1.

[0021] upper surface

lower surface

X

Y

X

Y

0

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.1

0.11

0.12

0.13

0.14

0.15

0.16

0.17

0.18

0.19

0.2

0.21

0.22

0.23

0.24

0.25

0.26

0.27

0.28

0.29

0.3

0.31

0.32

0.33

0.34

0.35

0.36

0.37

0

0.039917724

0.062667844

0.081184363

0.096981359

0.111737581

0.125557549

0.138469859

0.150507051

0.161702157

0.172089196

0.181703173

0.190576134

0.198740618

0.206227688

0.213086151

0.219379608

0.225162291

0.230480053

0.235368883 ...

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Abstract

A high-strength curved blade profile for the steam turbine using sea temp difference energy and solar energy to generate electric energy features that the ratio of maximal thickness to chord is 0.3, the ratio of the maximal thicknessí» position to chord is 0.25, the ratio of maximal camber to chord is 0.1457, the ratio of the maximal camberí»s position to chord is 0.47 and the ratio of the radius of its back arc to chord is 0.02.

Description

technical field [0001] The invention relates to an airfoil, in particular to a strongly curved airfoil used for steam turbines for ocean temperature difference energy-solar reheat cycle power generation, and belongs to the technical field of energy development. Background technique [0002] Ocean temperature difference energy-solar reheat cycle power generation is a new way to obtain energy. The steam turbine used for ocean thermal energy-solar reheating cycle power generation is to introduce the working medium gas flowing out of the solar collector into the steam turbine to promote the rotation of the steam turbine, and convert the kinetic energy of the working medium into the steam turbine. It is a completely environmentally friendly and clean way to obtain electricity. The blades of a steam turbine are the most critical components of this type of steam turbine. For steam turbine blades, the airfoil selection and research of blade cross section is the most direct factor ...

Claims

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Application Information

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IPC IPC(8): F01D5/14
Inventor 王彤杨波谷传纲
Owner SHANGHAI JIAO TONG UNIV
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