WO2024112289A1 - A turbine with increased energy efficiency - Google Patents

A turbine with increased energy efficiency Download PDF

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Publication number
WO2024112289A1
WO2024112289A1 PCT/TR2023/051028 TR2023051028W WO2024112289A1 WO 2024112289 A1 WO2024112289 A1 WO 2024112289A1 TR 2023051028 W TR2023051028 W TR 2023051028W WO 2024112289 A1 WO2024112289 A1 WO 2024112289A1
Authority
WO
WIPO (PCT)
Prior art keywords
turbine
diameter
flap
face
chassis
Prior art date
Application number
PCT/TR2023/051028
Other languages
French (fr)
Inventor
Salih Emre BAGGUL
Original Assignee
Repg Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from TR2022/017815 external-priority patent/TR2022017815A1/en
Application filed by Repg Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi filed Critical Repg Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi
Publication of WO2024112289A1 publication Critical patent/WO2024112289A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
    • F01D1/04—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines traversed by the working-fluid substantially axially
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/24—Rotors for turbines
    • F05D2240/242—Rotors for turbines of reaction type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/14—Two-dimensional elliptical
    • F05D2250/141—Two-dimensional elliptical circular

Definitions

  • the present invention relates to at least one turbine comprising at least one chassis for providing at least partial rotation around itself by means of movement of a fluid, and at least one flap which is in semilunar form in a manner protruding on said chassis.
  • ORC Organic Rankine Cycle
  • the solution described in the application no WO2022150933A1 known in the literature relates to a turbine which can be used in ORC systems.
  • the fluid which passes through the channels that exist at the lateral side of said turbine, passes through flaps that exist in semilunar form and the turbine is rotated. Electricity is produced by means of the rotated turbine.
  • the present invention relates to a turbine wheel, for eliminating the abovementioned disadvantages and for bringing new advantages to the related technical field.
  • An object of the present invention is to provide a turbine with increased energy efficiency.
  • Another object of the present invention is to provide a turbine whose air receiving capacity is increased for providing torque increase.
  • Another object of the present invention is to provide a turbine which provides both compression and expansion for providing torque increase.
  • the present invention relates to at least one turbine comprising at least one chassis for providing at least partial rotation around itself by means of movement of a fluid, and at least one flap which is in semilunar form in a manner protruding on said chassis. Accordingly, the improvement is that a first diameter wherein the flap height is included is provided on a first face and a second diameter wherein the flap height is included is provided on a second face where said first face and said second face are existing on mutual sides of the chassis; wherein said first diameter is smaller than said second diameter.
  • ORC organic rankine cycle
  • a bulge which is in outward spring form, is provided between the first diameter and the second diameter.
  • the capacity of the fluid between the flaps is increased.
  • the proportion of the first diameter to the second diameter is between 1 -1 .2.
  • the flaps have conical form.
  • the proportion of the first diameter to the second diameter is 1 .12.
  • the flaps have conical form.
  • the proportion of the flap number to the second diameter is between 3-4 quantities/mm.
  • the proportion of the flap number to the second diameter is 3.45 quantities/mm.
  • the flap density in the turbine is adjusted to optimum value for efficiency.
  • the second diameter is between 30-150 mm.
  • the diameter is adjusted in accordance with said flap density and conicity of the turbine.
  • Figure 1 a representative frontal view of an energy production system whereon the subject matter turbine is positioned is given.
  • FIG. 1 a representative frontal view of the energy production system (10) whereon the subject matter turbine (20) is positioned is given. Accordingly, electricity can be produced from the movement energy of air thanks to said energy production system (10). The produced electricity can be used in predetermined locations and machines.
  • the energy production system (10) essentially operates with an organic rankine cycle (ORC) principle.
  • ORC organic rankine cycle
  • the waste heat is taken by means of an exchanger, and said waste heat is given to the fluid gases or liquids whose kinetic is rapidly changed, and the kinetic energy thereof is increased. With this increasing kinetic energy, the turbine (20) is rotated and this movement energy can be directly used or can be used as electricity by connecting the generator.
  • the energy production system (10) comprises at least one first body part (11) and at least one second body part (12). In order to bring together said first body part (11) and said second body part (12), the whole body is obtained. There is an inner gap between the first body part (11) and the second body gap (12), and at least one turbine (20) is positioned at this part.
  • said turbine (20) is configured to rotate at least partially around itself. For this reason, there is at least one hole (24) at the center of the turbine (20), and at least one shaft (15) is positioned in this hole (24). In order to be able to position the shaft (15) on the first body part (11) and on the second body part (12) with a predetermined stability, there can be at least one bearing in between.
  • the shaft (15) is also rotated around itself, and energy conversion is obtained.
  • FIG. 2 a representative perspective view of the subject matter turbine (20) is given.
  • this turbine (20) also called the turbine expander, is centrifugal or axis flow system where a high pressure gas is expanded for producing the work essentially used for operating a compressor or a generator.
  • At the turbine (20) there is essentially a cylindrical chassis (21) and at least one flap (25) at the sides of said chassis (21) that are facing outwardly.
  • the chassis (21 ) is essentially the main body of the turbine (20). There is a hole
  • the flaps (25) are positioned around the turbine (20) at predetermined intervals.
  • the flaps (25) essentially have semilunar form (27). Since the flaps (25) have said semilunar form (27), ergonomics is provided during taking the fluid between the flaps (25) through the input opening (13) and during discharge of the fluid through the output opening (14).
  • This first diameter (D1) is essentially configured to be smaller than the second diameter (D2).
  • the flap (25) structures of the turbine (20) are provided to have a conical structure.
  • Said bulge (26) is the arc geometry provided between the first diameter (D1) and the second diameter (D2) of the flap (25).
  • the proportion of the first diameter (D1) to the second diameter (D2) is between 1-1.2.
  • the proportion of the first diameter (D1) to the second diameter (D2) is 1.12.
  • the turbine (20) rotates at high revolution and meets the air without forming resistance.
  • the proportion of the number of flaps (25) to the second diameter (D2) is preferably between 3-4 quantities/mm.
  • the proportion of the number of flaps (25) to the second diameter (D2) is 3.45 quantities/mm.
  • the second diameter (D2) of the turbine (20) is between 30-150 mm.
  • the turbine (20) is operated by means of various high pressure fluids and movement energy is obtained. At the same time, efficiency is increased to top level by means of unique and innovative design which is suitable for use in ORC systems.
  • By means of the turbine (20) structure both kinetic energy is utilized and the expansion function is tried to be provided.
  • This turbine (20) has been designed for being used in ORC systems in a compliant manner to realize expansion.
  • ORC systems are waste heat recovery systems. It is suitable for use in order to obtain movement energy from the energy of pressured fluids.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The present invention relates to at least one turbine (20) comprising at least one chassis (21) for providing at least partial rotation around itself by means of movement of a fluid, and at least one flap (27) which is in semilunar form (29) in a manner protruding on said chassis (21). The improvement of the present invention is that a first diameter (D1) wherein the flap (25) height is included is provided on a first face (22) and a second diameter (D2) wherein the flap (25) height is included is provided on a second face (23) where said first face (22) and said second face (23) are existing on mutual sides of the chassis (21); wherein said first diameter (D1) is smaller than said second diameter (D2).

Description

A TURBINE WITH INCREASED ENERGY EFFICIENCY
TECHNICAL FIELD
The present invention relates to at least one turbine comprising at least one chassis for providing at least partial rotation around itself by means of movement of a fluid, and at least one flap which is in semilunar form in a manner protruding on said chassis.
PRIOR ART
Organic Rankine Cycle (ORC) is an ideal technology for heat recovery in industrial applications. In a different manner from the heat recovery systems based on traditional vapor Rankine cycle, ORC eliminates the need to purify water and add water, and provides transformation in closed system. One of the most important items which must be taken into account in studies related to providing energy efficiency is to recover the waste heat that occurs as a result of processes. In various systems, the waste heat energy released to the atmosphere is recovered by using various systems and energy saving is obtained. In ORC, the waste heat is received by means of an exchanger, and is applied to fluid gases or liquids whose kinetic is rapidly changed, and the kinetic energy thereof is increased. As a result of this increasing kinetic energy, the structures like turbine, etc. are rotated, and this rotational energy can be used directly or as electricity by connecting a generator.
The solution described in the application no WO2022150933A1 known in the literature relates to a turbine which can be used in ORC systems. The fluid, which passes through the channels that exist at the lateral side of said turbine, passes through flaps that exist in semilunar form and the turbine is rotated. Electricity is produced by means of the rotated turbine.
In the turbines used in the present art (in ORC and in similar systems), the form of the flaps affects the energy efficiency directly. However, the desired efficiency cannot be obtained from the flaps used in the systems known in the present art. Since fluid receiving capacity is low in the flap systems known in the present art and because of the problems faced during realization of said compression, the energy efficiency of the turbine decreases. As a result, because of the abovementioned problems, an improvement is required in the related technical field.
BRIEF DESCRIPTION OF THE INVENTION
The present invention relates to a turbine wheel, for eliminating the abovementioned disadvantages and for bringing new advantages to the related technical field.
An object of the present invention is to provide a turbine with increased energy efficiency.
Another object of the present invention is to provide a turbine whose air receiving capacity is increased for providing torque increase.
Another object of the present invention is to provide a turbine which provides both compression and expansion for providing torque increase.
In order to realize the abovementioned objects and the objects which are to be deducted from the detailed description below, the present invention relates to at least one turbine comprising at least one chassis for providing at least partial rotation around itself by means of movement of a fluid, and at least one flap which is in semilunar form in a manner protruding on said chassis. Accordingly, the improvement is that a first diameter wherein the flap height is included is provided on a first face and a second diameter wherein the flap height is included is provided on a second face where said first face and said second face are existing on mutual sides of the chassis; wherein said first diameter is smaller than said second diameter. Thus, a turbine structure is obtained which has optimum efficiency for the circuits that have organic rankine cycle (ORC) principle.
In a possible embodiment of the present invention, a bulge, which is in outward spring form, is provided between the first diameter and the second diameter. Thus, the capacity of the fluid between the flaps is increased.
In another possible embodiment of the present invention, the proportion of the first diameter to the second diameter is between 1 -1 .2. Thus, the flaps have conical form.
In another possible embodiment of the present invention, the proportion of the first diameter to the second diameter is 1 .12. Thus, the flaps have conical form. In another possible embodiment of the present invention, the proportion of the flap number to the second diameter is between 3-4 quantities/mm. Thus, the flap density in the turbine is adjusted to optimum value for efficiency.
In another possible embodiment of the present invention, the proportion of the flap number to the second diameter is 3.45 quantities/mm. Thus, the flap density in the turbine is adjusted to optimum value for efficiency.
In another possible embodiment of the present invention, the second diameter is between 30-150 mm. Thus, the diameter is adjusted in accordance with said flap density and conicity of the turbine.
In another possible embodiment of the present invention, it is suitable for circuits that have organic rankine cycle (ORC) principle. Thus, efficiency in ORC circuits is increased.
BRIEF DESCRIPTION OF THE FIGURES
In Figure 1 , a representative frontal view of an energy production system whereon the subject matter turbine is positioned is given.
In Figure 2, a representative perspective view of the subject matter turbine is given.
In Figure 3, a representative lateral view of the subject matter turbine is given.
In Figure 4, a representative frontal view of the subject matter turbine is given.
DETAILED DESCRIPTION OF THE INVENTION
In this detailed description, the subject matter is explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.
In Figure 1 , a representative frontal view of the energy production system (10) whereon the subject matter turbine (20) is positioned is given. Accordingly, electricity can be produced from the movement energy of air thanks to said energy production system (10). The produced electricity can be used in predetermined locations and machines. The energy production system (10) essentially operates with an organic rankine cycle (ORC) principle. In ORC, the waste heat is taken by means of an exchanger, and said waste heat is given to the fluid gases or liquids whose kinetic is rapidly changed, and the kinetic energy thereof is increased. With this increasing kinetic energy, the turbine (20) is rotated and this movement energy can be directly used or can be used as electricity by connecting the generator.
The energy production system (10) comprises at least one first body part (11) and at least one second body part (12). In order to bring together said first body part (11) and said second body part (12), the whole body is obtained. There is an inner gap between the first body part (11) and the second body gap (12), and at least one turbine (20) is positioned at this part. Here, said turbine (20) is configured to rotate at least partially around itself. For this reason, there is at least one hole (24) at the center of the turbine (20), and at least one shaft (15) is positioned in this hole (24). In order to be able to position the shaft (15) on the first body part (11) and on the second body part (12) with a predetermined stability, there can be at least one bearing in between. As the turbine (20) is rotated around itself, the shaft (15) is also rotated around itself, and energy conversion is obtained. For providing rotation of the turbine (20) around itself, there is at least one input opening (13) and at least one output opening (14) on the body. The fluid, taken from said input opening (13), rotates the turbine (20) and then it is discharged through said output opening (14).
In Figure 2, a representative perspective view of the subject matter turbine (20) is given. Accordingly, this turbine (20), also called the turbine expander, is centrifugal or axis flow system where a high pressure gas is expanded for producing the work essentially used for operating a compressor or a generator. At the turbine (20), there is essentially a cylindrical chassis (21) and at least one flap (25) at the sides of said chassis (21) that are facing outwardly. The chassis (21 ) is essentially the main body of the turbine (20). There is a hole
(24) thereon. It has predetermined wall thickness. The flaps (25) are positioned around the turbine (20) at predetermined intervals.
In Figure 3, a representative lateral view of the subject matter turbine (20) is given. Accordingly, in a possible embodiment of the present invention, the flaps (25) essentially have semilunar form (27). Since the flaps (25) have said semilunar form (27), ergonomics is provided during taking the fluid between the flaps (25) through the input opening (13) and during discharge of the fluid through the output opening (14). The semilunar form (27) flaps
(25) expand and extend from a first face (22) of the turbine (20) and takes its widest form towards the turbine (20) center and narrows again towards a second face (23). Said first face (22) and said second face (23) of the turbine (20) are essentially the mutual sides of the turbine (20). In Figure 4, a representative frontal view of the subject matter turbine (20) is given. Accordingly, there are some proportions related to the number and form of the flaps (25) in turbine (20) structure, and these contribute to improvement of the efficiency of the turbine (20). It is assumed that there is at least one first diameter (D1 ) on the first face (22) of the turbine (20) by including heights of the flap (25), and there is at least one second diameter (D2) on the second face (23) thereof by including the flap (25) heights. This first diameter (D1) is essentially configured to be smaller than the second diameter (D2). By means of this, the flap (25) structures of the turbine (20) are provided to have a conical structure. On the flap (25), there is at least one bulge (26) form which is outwardly between the first diameter (D1) and the second diameter (D2). Said bulge (26) is the arc geometry provided between the first diameter (D1) and the second diameter (D2) of the flap (25). By means of this bulge (26), the fluid retention capacity of the flaps (25) is increased. In a possible embodiment of the present invention, the proportion of the first diameter (D1) to the second diameter (D2) is between 1-1.2. Preferably the proportion of the first diameter (D1) to the second diameter (D2) is 1.12. By means of this, it is enabled that the turbine (20) rotates at high revolution and meets the air without forming resistance. On the turbine (20), the proportion of the number of flaps (25) to the second diameter (D2) is preferably between 3-4 quantities/mm. Preferably, the proportion of the number of flaps (25) to the second diameter (D2) is 3.45 quantities/mm. Additionally, the second diameter (D2) of the turbine (20) is between 30-150 mm.
Together with all these embodiments, the turbine (20) is operated by means of various high pressure fluids and movement energy is obtained. At the same time, efficiency is increased to top level by means of unique and innovative design which is suitable for use in ORC systems. By means of the turbine (20) structure, both kinetic energy is utilized and the expansion function is tried to be provided. This turbine (20) has been designed for being used in ORC systems in a compliant manner to realize expansion. ORC systems are waste heat recovery systems. It is suitable for use in order to obtain movement energy from the energy of pressured fluids.
The protection scope of the present invention is set forth in the annexed claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention. REFERENCE NUMBERS
10 Energy production system
1 1 First body part
12 Second body part
13 Input opening
14 Output opening
15 Shaft
20 Turbine
21 Chassis
22 First face
23 Second face
24 Hole
25 Flap
26 Bulge
27 Semilunar form
D1 First diameter
D2 Second diameter

Claims

1. The present invention is at least one turbine (20) comprising at least one chassis (21 ) for providing at least partial rotation around itself by means of movement of a fluid, and at least one flap (27) which is in semilunar form (29) in a manner protruding on said chassis (21 ), wherein a first diameter (D1) wherein the flap (25) height is included is provided on a first face (22) and a second diameter (D2) wherein the flap (25) height is included is provided on a second face (23) where said first face (22) and said second face (23) are existing on mutual sides of the chassis (21 ); wherein said first diameter (D1 ) is smaller than said second diameter (D2).
2. The turbine (20) according to claim 1 , wherein a bulge (26), which is in outward spring form, is provided between the first diameter (D1) and the second diameter (D2).
3. The turbine (20) according to claim 1 , wherein the proportion of the first diameter (D1 ) to the second diameter (D2) is between 1 -1 .2.
4. The turbine (20) according to claim 1 , wherein the proportion of the first diameter (D1 ) to the second diameter (D2) is 1.12.
5. The turbine (20) according to claim 1 , wherein the proportion of the flap (25) number to the second diameter (D2) is between 3-4 quantities/mm.
6. The turbine (20) according to claim 1 , wherein the proportion of the flap number (25) to the second diameter (D2) is 3.45 quantities/mm.
7. The turbine (20) according to claim 1 , wherein the second diameter (D2) is between 30-150 mm.
8. The turbine (20) according to claim 1 , wherein it is suitable for circuits that have organic rankine cycle (ORC) principle.
PCT/TR2023/051028 2022-11-24 2023-09-26 A turbine with increased energy efficiency WO2024112289A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2022017815 2022-11-24
TR2022/017815 TR2022017815A1 (en) 2022-11-24 A TURBINE WITH INCREASED ENERGY EFFICIENCY

Publications (1)

Publication Number Publication Date
WO2024112289A1 true WO2024112289A1 (en) 2024-05-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2023/051028 WO2024112289A1 (en) 2022-11-24 2023-09-26 A turbine with increased energy efficiency

Country Status (1)

Country Link
WO (1) WO2024112289A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576770A (en) * 1982-04-01 1986-03-18 General Electric Co. Method of manufacturing a turbomachinery rotor
US20120093640A1 (en) * 2010-10-13 2012-04-19 National Tsing Hua University (Taiwan) Micro turbine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576770A (en) * 1982-04-01 1986-03-18 General Electric Co. Method of manufacturing a turbomachinery rotor
US20120093640A1 (en) * 2010-10-13 2012-04-19 National Tsing Hua University (Taiwan) Micro turbine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BAGINSKI PAWEL, ZYCH PAWEL, ZYWICA GRZEGORZ: "Stress analysis of the discs of axial-flow microturbines", JOURNAL OF VIBROENGINEERING, vol. 22, no. 6, 30 September 2020 (2020-09-30), pages 1519 - 1533, XP093177285, ISSN: 1392-8716, DOI: 10.21595/jve.2020.21165 *
ZYCH PAWEŁ, ŻYWICA GRZEGORZ: "Fatigue Analysis of the Microturbine Rotor Disc Made of 7075 Aluminium Alloy Using a New Hybrid Calculation Method", MATERIALS, vol. 15, no. 3, 22 January 2022 (2022-01-22), CH , pages 1 - 21, XP093177282, ISSN: 1996-1944, DOI: 10.3390/ma15030834 *

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