Special working medium turbine power generation experiment platform based on hydraulic braking and test method

Abstract

The invention discloses a special working medium turbine power generation experiment platform based on hydraulic braking and a testing method, and belongs to the technical field of turbine mechanical performance testing. The experiment table comprises a compressor, a special working medium gas storage tank, a pressure flow adjusting system, a turbine experiment section, a hydraulic power measuring device and an experiment table body. The pressure flow adjusting system accurately controls parameters of a special working medium entering a turbine through an electric adjusting valve and a flow meter; the turbine experiment section converts the energy of the high-pressure special working medium into mechanical energy; the hydraulic dynamometer measures the output power of the turbine through a brake disc, a hydraulic brake caliper and a dynamometer, and measures the rotating speed of the turbine through a speed meter. The test method comprises the steps of system establishment and calibration, initialization, gas source starting, working condition adjustment and test, and multi-working condition data acquisition and data analysis. The method has the advantages of being accurate in control, reliable in measurement, low in investment cost and the like, the turbine performance curve can be efficiently obtained, and experimental support is provided for turbine design and optimization.

Description

Technical Field

[0001] This invention relates to the field of turbine mechanical performance testing technology, and in particular to a special working fluid turbine power generation experimental platform and testing method based on hydraulic braking. Background Technology

[0002] Turbomachinery, as a core power source, is widely used in aero engines, gas turbines, small power plants, and waste heat recovery systems. Its performance directly affects the efficiency and reliability of the entire system. In the research and development and improvement of turbines, experimental testing is an indispensable step in verifying their design performance and obtaining real-world operational data.

[0003] Currently, existing turbine testing platforms generally suffer from the following problems: First, the dynamometer methods are traditional, such as hydraulic dynamometers or simple reverse-drive motors, whose measurement accuracy, response speed, and control flexibility are insufficient to meet the requirements of high-precision testing; second, the systems are complex and their structures are unclear, making it difficult to define the role of each component, which affects experimental understanding and operation; third, the investment cost is high, with numerous auxiliary systems and high investment costs. Furthermore, there is a lack of low-cost experimental platforms specifically designed for integrated performance testing of small turbine power generation systems.

[0004] Therefore, there is an urgent need for a special working fluid turbine power generation test bench that is precise in control, reliable in measurement, and low in cost, which can provide strong experimental support for turbine design verification, performance optimization, and power generation efficiency evaluation. Summary of the Invention

[0005] The purpose of this invention is to provide a special working fluid turbine power generation experimental platform based on hydraulic braking to meet the needs of turbine performance testing. By building a stable high-pressure gas source, a precise pressure and flow regulation system, a turbine test section, and a high-precision dynamometer system, the platform can complete the performance tests of the turbine under different inlet conditions, such as output power and efficiency, by adjusting the flow rate and pressure of the incoming working fluid. This provides experimental data support for the design and optimization of turbine power generation systems.

[0006] The objective of this invention can be achieved through the following technical solution: a special working fluid turbine power generation experimental platform based on hydraulic braking, comprising an experimental platform, a compressor and a special working fluid storage tank, wherein a hydraulic dynamometer, a turbine experimental section and a pressure and flow regulation system are provided on the experimental platform;

[0007] The compressor, special working fluid storage tank, pressure and flow regulation system and turbine test section are connected in sequence through pipelines to provide working fluid airflow to the turbine test section;

[0008] In the turbine test section, the turbine inlet section, turbine outlet section, and bearing housing are fixedly connected to the turbine volute, and the shaft is supported by the bearing housing. The working fluid flow is guided by the turbine inlet section, then by the rear cover plate, and then by the stationary blade guide, which drives the moving blade to rotate, thereby driving the shaft to rotate. Finally, the working fluid flow is discharged after being guided by the outlet guide cone.

[0009] The hydraulic dynamometer includes a brake disc, a force-measuring shaft, and a force gauge.

[0010] The brake disc is fixedly connected to one end of the shaft, and the rotation of the shaft drives the brake disc to rotate; a digital tachometer for recording the rotation speed is set on the side of the brake disc; one end of the force measuring shaft is set in the force gauge, and the other end is rigidly connected to the hydraulic brake caliper through the brake caliper fixing sleeve and the brake caliper connecting plate; the hydraulic brake caliper clamps to the outside of the brake disc; the shaft and the force measuring shaft are on the same axis;

[0011] The hydraulic brake caliper increases the load on the turbine by the friction between the brake disc and the hydraulic brake caliper, controlling the speed of the turbine. The friction between the hydraulic brake caliper and the brake disc is measured by a force gauge, and the turbine speed is measured by a digital speedometer, thereby obtaining the turbine's output power, torque and efficiency.

[0012] The pressure and flow regulation system includes an electric regulating valve for controlling the magnitude of the working fluid flow and a flow meter for detecting the flow rate of the working fluid.

[0013] Furthermore, the turbine outlet section and bearing housing are on the same axis as the shaft, and the turbine inlet section is perpendicular to the axis of the shaft.

[0014] Furthermore, the special working medium storage tank is equipped with a safety valve, a special working medium storage tank inlet, and a special working medium storage tank outlet.

[0015] Furthermore, the inlet of the electric regulating valve is connected to the outlet of the special working fluid storage tank.

[0016] Furthermore, the compressor is connected to the inlet of a special working fluid storage tank.

[0017] Furthermore, the force gauge is installed inside the dynamometer bracket, and the height of the force gauge is adjusted so that the shaft and the force measuring shaft are on the same axis.

[0018] Furthermore, the friction force f between the brake disc and the hydraulic brake caliper is measured using a digital tachometer positioned directly above the brake disc to determine the turbine speed n; after collecting the above data, the turbine speed is determined according to the formula... The output power of the turbine is calculated; according to the formula The output torque of the turbine is calculated; according to the formula... The isentropic efficiency of the turbine was calculated.

[0019] in, Where m is the output power of the turbine, m is the mass flow rate of the special working fluid flowing through the turbine, and D is the diameter of the brake disc. The enthalpy value is given by the inlet temperature and inlet pressure. This represents the enthalpy value under import entropy and export pressure.

[0020] A test method for a special working fluid turbine power generation experimental platform based on hydraulic braking includes the following steps:

[0021] S1. Test bench setup and calibration: Connect each component according to the description of the test platform above, ensuring that the connection is correct. The central shaft (2d) of the turbine test section and the central shaft of the hydraulic dynamometer are concentric. The digital speedometer (1e) is aligned with the side of the brake disc (1a).

[0022] S2. System initialization: Turn on the data acquisition system and perform static calibration on the electric regulating valve (3b), flow meter (3c), and force gauge (1c).

[0023] S3. Start the gas source: Start the compressor (5) and charge the special working medium into the special working medium storage tank (4) with high pressure special working medium;

[0024] S4. Operating Condition Adjustment and Testing: By adjusting the opening of the electric regulating valve (3b) through the control system and in conjunction with the reading of the flow meter (3c), the turbine inlet parameters are adjusted to the target operating condition one; after the flow and pressure stabilize, the values ​​of each measuring point are collected.

[0025] S5. Multi-condition test: Keep the gas supply stable, repeat step S4, and adjust the system to other conditions in turn until data collection of all preset conditions is completed;

[0026] S6. Data Analysis: Based on the collected friction and rotational speed data, calculate the turbine's output power, and combine it with data from other measuring points to analyze the turbine's performance characteristics under different operating conditions.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] This invention addresses the performance testing of turbine power generation systems using special working fluids. Through modular design, it integrates a stable and reliable gas source, a precisely controllable pressure and flow system, and a high-precision dynamometer. A test bench provides a stable mounting reference for the core rotating components, ensuring alignment accuracy and operational reliability. This test bench features a clear structure, precise and efficient control, and accurate and reliable measurements. It can efficiently acquire turbine performance curves and has a low investment cost, providing a practical experimental platform for turbine design verification and optimization. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the turbine power generation test bench of the present invention.

[0030] Figure 2 This is a top view of the overall structure of the turbine power generation test bench of the present invention.

[0031] Figure 3 This is a schematic diagram of the turbine test section and hydraulic dynamometer device in the turbine power generation test bench of the present invention.

[0032] Figure 4 This is a front view of the turbine test section and hydraulic dynamometer device in the turbine power generation test bench of the present invention.

[0033] Figure 5 This is a cross-sectional view of the turbine test section in the turbine power generation test rig of the present invention.

[0034] Figure 6 This is an enlarged view of the hydraulic dynamometer device of the turbine power generation test bench of the present invention.

[0035] Figure 7 This is a schematic diagram of the structure of the special working fluid storage tank in the turbine power generation test bench of the present invention.

[0036] In the diagram: 1. Hydraulic dynamometer; 1a. Brake disc; 1b. Hydraulic brake caliper; 1c. Force gauge; 1d. Dynamometer bracket; 1e. Digital tachometer; 1f. Brake caliper connecting plate; 1g. Brake caliper fixing sleeve; 1h. Force measuring shaft; 2. Turbine test section; 2a. Turbine outlet section; 2b. Turbine volute; 2c. Bearing housing; 2d. Shaft; 2e. Turbine inlet section; 2f. Outlet guide cone; 2g. Moving blade; 2h. Stationary blade; 2i. Rear cover plate; 3a. Electric regulating valve; 3b. Flow meter; 4. Special working fluid storage tank; 4a. Safety valve; 4b. Special working fluid storage tank inlet; 4c. Special working fluid storage tank outlet; 5. Compressor; 6. Test bench. Detailed Implementation

[0037] The turbine power generation test bench of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] A turbine power generation test bench includes a hydraulic dynamometer, a turbine test section, a gas source system, a pressure and flow regulation system, and the test bench.

[0039] The hydraulic dynamometer is coaxially connected to the turbine shaft via a rigid connection between the brake disc, hydraulic brake caliper, and turbine shaft. It is used to increase the load and control the turbine speed. The friction between the brake disc and hydraulic brake caliper is measured by a force gauge, and the turbine shaft speed is measured by a digital tachometer, thereby obtaining parameters such as turbine output power, torque, and efficiency.

[0040] The turbine test section comprises a turbine outlet section, a turbine volute, a shaft, a turbine inlet section, a bearing housing, and an outlet guide cone, moving blades, stationary blades, and a rear cover plate within the turbine volute. The turbine inlet section is connected to the outlet of the flow meter. After the high-pressure special working fluid from the pressure and flow regulation system enters the turbine inlet section, it is guided by the rear cover plate and guide vanes, impacting and driving the turbine moving blades to rotate, which in turn drives the shaft to rotate, converting the energy of the high-pressure special working fluid into mechanical energy. Finally, it is guided by the outlet guide cone and discharged from the turbine outlet section.

[0041] The gas supply system includes a compressor and a special working fluid storage tank. The outlet of the compressor is connected to the inlet of the special working fluid storage tank to generate and store high-pressure special working fluid, providing a sufficient and stable gas supply for the entire experimental platform.

[0042] The pressure and flow regulation system includes an electric regulating valve and a flow meter connected in sequence along the airflow direction. The outlet of the special working fluid storage tank is connected to the inlet of the electric regulating valve. The electric regulating valve is used to receive control signals and precisely adjust the valve opening to control the flow rate or pressure of the special working fluid entering the turbine. The flow meter is used to monitor and provide feedback on the flow rate or pressure of the special working fluid flowing into the turbine test section in real time.

[0043] The experimental platform is a rigid support frame or platform. The pressure and flow regulation system, the turbine test section, and the hydraulic dynamometer are all fixedly installed on the experimental platform through their respective bases. The experimental platform provides a stable installation foundation for the turbine and the hydraulic dynamometer, and ensures the alignment accuracy of their rotating shafts, thereby guaranteeing the smoothness of the experimental operation and the accuracy of the measurement data.

[0044] Furthermore, the hydraulic dynamometer includes a brake disc, a hydraulic brake caliper, a force gauge, a dynamometer bracket, and a digital tachometer. The force gauge is used to measure the frictional force between the brake disc and the hydraulic brake caliper, the digital tachometer is used to measure the rotational speed of the turbine shaft, and the dynamometer bracket is used to support the above components to ensure that the position of the hydraulic dynamometer shaft and the turbine shaft can rotate coaxially.

[0045] Furthermore, the flow meter in the pressure and flow regulation system is also equipped with a pressure sensor to monitor the pressure of the special working fluid at the turbine inlet.

[0046] Furthermore, probes can be used to add measuring points on the turbine outlet section, turbine volute, and turbine inlet section to further measure parameters such as temperature and pressure at the turbine inlet and outlet positions.

[0047] Furthermore, the turbine shaft of the turbine test section can also be connected to a generator, and the designed power generation turbine can be directly evaluated by the power output of the generator.

[0048] The turbine power generation test bench of this invention has the following gas path flow: After the compressor 5 starts, the high-pressure special working fluid generated, such as R1233ZDE or R245fa, is first stored in the special working fluid storage tank 4 through the inlet 4b. The special working fluid storage tank 4 is equipped with a safety valve 4a at the top to ensure safety and stabilize the outlet pressure. After the special working fluid flows out of the special working fluid storage tank outlet 4c, it passes through the electric regulating valve 3a and the flow meter 3b in sequence. The electric regulating valve 3a receives control signals to precisely adjust its opening, thereby forming a closed-loop control with the control core. It works in conjunction with the flow meter 3b to ensure that the parameters (pressure and flow rate) of the special working fluid entering the turbine test section 2 are stable at the set values.

[0049] The hydraulic dynamometer 1 consists of a brake disc 1a, a hydraulic brake caliper 1b, a force gauge 1c, a dynamometer bracket 1d, and a digital tachometer 1e. The brake disc 1a is fixedly connected to one end of shaft 2d; rotation of shaft 2d drives the brake disc 1a to rotate. A digital tachometer 1e for recording rotational speed is mounted on the side of the brake disc 1a. One end of the force-measuring shaft 1h is housed in the force gauge 1c, and the other end is rigidly connected to the hydraulic brake caliper 1b via a brake caliper fixing sleeve 1g and a brake caliper connecting plate 1f. The hydraulic brake caliper 1b is clamped to the outside of the brake disc 1a. Shaft 2d and the force-measuring shaft 1h are coaxial. The friction between the brake disc 1a and the hydraulic brake caliper 1b increases the load on the turbine, controlling its rotational speed. The force gauge 1c measures the magnitude of the friction, and the digital tachometer 1e measures the turbine shaft rotational speed. The turbine's output power is calculated based on the friction and rotational speed. The dynamometer bracket 1d supports the force gauge 1c and the hydraulic dynamometer shaft, ensuring concentricity between the force-measuring shaft and the turbine shaft.

[0050] The principle of the hydraulic dynamometer: When shaft 2d is stationary, the two force gauges are in equilibrium. During turbine test operation, i.e., when shaft 2d rotates, brake disc 1a is fixed to shaft 2d by bolts, and both rotate together. Friction is generated between the hydraulic brake caliper 1b and brake disc 1a. The force-measuring shaft, rigidly connected by screws, should rotate with shaft 2d, but it is pulled by the two force gauges, keeping it relatively stationary. The difference between the readings of the two force gauges is the frictional force f between the hydraulic brake caliper 1b and brake disc 1a. The turbine output power is calculated using the formula W=πDnf / 60, where D is the brake disc diameter, n is the turbine speed measured by the digital tachometer 1e, and f is the frictional force measured by the two force gauges 1c.

[0051] The output torque of the turbine is calculated using the formula M=fD / 2, where D is the brake disc diameter and f is the friction force measured by the two force gauges. The isentropic efficiency of the turbine is calculated in the formula. Where m is the output power of the turbine, and m is the mass flow rate of the special working fluid flowing through the turbine. The enthalpy value is given by the inlet temperature and inlet pressure. This represents the enthalpy value under import entropy and export pressure.

[0052] Turbine test section 2 is the main area for turbine power generation. A high-pressure special working fluid enters the turbine volute 2b through the turbine inlet section 2e, and after being guided by the rear cover plate 2i and the stationary blades 2h, it efficiently impacts the turbine rotor blades 2g. The turbine rotor blades 2h are fixedly mounted on the turbine shaft via a key connection and rotate at high speed under the drive of the airflow, converting the energy of the airflow into mechanical work. The exhaust gas after performing work is guided by the outlet guide cone 2f and then directly discharged into the atmosphere through the turbine outlet section 2a. The turbine shaft 2d is supported by bearing seats 2c at both ends.

[0053] A test method for a special working fluid turbine power generation experimental platform based on hydraulic braking includes the following steps:

[0054] S1. Experimental Platform Setup and Calibration: As described above, assemble the hydraulic dynamometer 1, turbine test section 2, pressure and flow regulation system, special working fluid storage tank 4, and compressor 5 according to the experimental platform specifications. Figure 1 The air circuit connection shown is securely installed on the test bench 6. Adjust the relative position of the hydraulic dynamometer 1 and the turbine test section 2 to ensure that the two shafts rotate coaxially and that the digital tachometer 1e is directly opposite the brake disc 1a.

[0055] S2. System initialization and equipment calibration: Turn on the data acquisition system, establish communication with electric regulating valve 3a, flow meter 3b, and digital tachometer 1e, and calibrate electric regulating valve 3a, flow meter 3b, force gauge 1c and digital tachometer 1e under no airflow conditions;

[0056] S3. Start the gas source: Start the compressor 5 and fill the special working medium storage tank 4 with high-pressure special working medium until the special working medium storage tank is full;

[0057] S4. Operating Condition Adjustment and Testing: Increase the load by using brake disc 1a and hydraulic brake caliper 1b, determine the turbine speed by using digital tachometer 1e, and control the turbine speed within the design operating condition. Adjust the opening of electric regulating valve 3a by using the control instrument, and combine the inlet pressure reading of flow meter 3b to adjust the turbine inlet parameters to the target operating condition one. After the pressure stabilizes, record the value of force gauge 1c, and record the flow rate and pressure values.

[0058] S5. Multi-condition test: After completing the test of condition one, keep the air source stable, control the electric regulating valve 3a through the control instrument to make the turbine inlet pressure reach the design speed in other conditions, record the values ​​of each measuring point, then adjust the brake disc 1a and hydraulic brake caliper 1b to change the load, adjust the turbine speed, and calculate the working conditions of other speeds.

[0059] S6. Post-Experiment Operation and Data Analysis: After completing all operating condition tests, first close the electric regulating valve 3a to the zero position to cut off the air supply. Then stop the compressor 5 and release the residual pressure in the pipeline to atmospheric pressure. Based on the collected speed and friction data, calculate the turbine's output power and efficiency. Based on the values ​​of other measuring points, analyze its performance characteristics under different operating conditions.

[0060] Traditional dynamometers use torque meters, but since they lack speed control capabilities, a separate dynamometer is required to increase the load and control the speed for experimental purposes. For example, a 5kW turbine at 20,000 RPM requires an investment of 8,200 yuan for a torque meter and approximately 68,000 yuan for an eddy current dynamometer, totaling about 76,200 yuan for the traditional method. In contrast, the dynamometer solution proposed in this patent only requires a force gauge (980 yuan), a digital speedometer (535 yuan), a hydraulic brake caliper (1,460 yuan), and the processing cost of the dynamometer bracket, totaling approximately 4,000 yuan. The comparison shows that this patented dynamometer method has a lower investment cost compared to traditional methods, especially for high-speed turbines.

[0061] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the invention in any way. Any changes or modifications made by those skilled in the art based on the above-disclosed technical content should be considered as equivalent and valid embodiments, and all fall within the scope of protection of the present invention.

Claims

1. An experimental platform for generating electricity using a special working fluid based on hydraulic braking, comprising an experimental platform (6), a compressor (5), and a special working fluid storage tank (4), characterized in that: The experimental platform (6) is equipped with a hydraulic dynamometer (1), a turbine experimental section (2), and a pressure and flow regulation system; The compressor (5), special working fluid storage tank (4), pressure and flow regulation system and turbine test section (2) are connected in sequence through pipelines to provide working fluid flow to the turbine test section (2); In the turbine test section (2), the turbine inlet section (2e), turbine outlet section (2a), and bearing housing (2c) are fixedly connected to the turbine volute (2b), and the shaft (2d) is supported by the bearing housing (2c). The working fluid flow is guided by the turbine inlet section (2e), the rear cover plate (2i), and the stationary blade (2h) to drive the moving blade (2g) to rotate, which in turn drives the shaft (2d) to rotate. The working fluid flow is finally guided by the outlet guide cone (2f) and discharged. The hydraulic dynamometer (1) includes a brake disc (1a), a force measuring shaft (1h), and a force gauge (1c). The brake disc (1a) is fixedly connected to one end of the shaft (2d), and the rotation of the shaft (2d) drives the brake disc (1a) to rotate; a digital tachometer (1e) for recording the rotation speed is provided on the side of the brake disc (1a); one end of the force measuring shaft (1h) is set in the force gauge (1c), and the other end is rigidly connected to the hydraulic brake caliper (1b) through the brake caliper fixing sleeve (1g) and the brake caliper connecting plate (1f); the hydraulic brake caliper (1b) is clamped to the outside of the brake disc (1a); the shaft (2d) and the force measuring shaft (1h) are on the same axis; The hydraulic brake caliper (1b) increases the load on the turbine and controls the turbine speed by the friction between the brake disc (1a) and the hydraulic brake caliper (1b). The friction between the hydraulic brake caliper (1b) and the brake disc (1a) is measured by a force gauge (1c), and the turbine speed is measured by a digital speedometer (1e), thereby obtaining the turbine's output power, torque and efficiency. The pressure and flow regulation system includes an electric regulating valve (3a) for controlling the magnitude of the working fluid flow and a flow meter (3b) for detecting the flow rate of the working fluid.

2. The experimental platform for generating electricity using a special working fluid based on hydraulic braking according to claim 1, characterized in that: The turbine outlet section (2a) and bearing housing (2c) are on the same axis as the shaft (2d), and the turbine inlet section (2e) is perpendicular to the axis of the shaft (2d).

3. The experimental platform for generating electricity using a special working fluid based on hydraulic braking according to claim 2, characterized in that: The special working medium storage tank (4) is equipped with a safety valve (4a), a special working medium storage tank inlet (4b), and a special working medium storage tank outlet (4c).

4. The experimental platform for generating electricity using a special working fluid based on hydraulic braking according to claim 3, characterized in that: The inlet of the electric regulating valve (3a) is connected to the outlet (4c) of the special working fluid storage tank.

5. The experimental platform for generating electricity using a special working fluid based on hydraulic braking according to claim 4, characterized in that: The compressor (5) is connected to the inlet (4b) of the special working fluid storage tank.

6. The experimental platform for generating electricity using a special working fluid based on hydraulic braking according to claim 5, characterized in that: The force gauge (1c) is installed inside the dynamometer bracket (1d). By adjusting the height of the force gauge (1c), the shaft (2d) and the force measuring shaft (1h) are made to be on the same axis.

7. The experimental platform for generating electricity using a special working fluid based on hydraulic braking according to claim 6, characterized in that: The frictional force f between the brake disc (1a) and the hydraulic brake caliper (1b) is measured by a digital tachometer (1e) positioned directly above the brake disc (1a), which measures the turbine speed n. After collecting the above data, the turbine speed is determined according to the formula... The output power of the turbine is calculated; according to the formula The output torque of the turbine is calculated. Where D is the diameter of the brake disc; According to the formula The isentropic efficiency of the turbine was calculated. in, Where m is the output power of the turbine, and m is the mass flow rate of the special working fluid flowing through the turbine. The enthalpy value is given by the inlet temperature and inlet pressure. This represents the enthalpy value under import entropy and export pressure.

8. The test method for a special working fluid turbine power generation experimental platform based on hydraulic braking as described in any one of claims 1-7, characterized in that, Includes the following steps: S1. Experimental platform setup and calibration: Connect the various components of the experimental platform, make the shaft (2d) of the turbine experimental section and the force measuring shaft (1h) in the hydraulic dynamometer concentric, and align the digital speedometer (1e) with the side of the brake disc (1a). S2. System initialization: Turn on the data acquisition system and perform static calibration of the electric regulating valve (3b), flow meter (3c) and force gauge (1c). S3. Start the gas source: Start the compressor (5) and charge the special working medium into the special working medium storage tank (4) with high pressure special working medium; S4. Operating Condition Adjustment and Testing: By adjusting the opening of the electric regulating valve (3b) through the control system and in conjunction with the reading of the flow meter (3c), the turbine inlet parameters are adjusted to the target operating condition; after the flow and pressure stabilize, the values ​​of each measuring point are collected. S5. Multi-condition test: Keep the gas supply stable, repeat step S4, and adjust the system to other conditions in turn until data collection of all preset conditions is completed; S6. Data Analysis: Based on the collected friction and rotational speed data, calculate the turbine's output power and analyze the turbine's performance characteristics under different operating conditions.

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