New Energy Solar Thermal Power Generation Teaching and Research Platform

main purpose

Research on the Basic Principles and Performance of High Temperature Collectors and Thermal Power Generation Functions

Target audience

Undergraduate teaching, teacher research, and training of master's students

Cooperate with the course

1.Fundamentals of Electrical Engineering

2.Thermal energy storageTechnology and Applications

3.New energy generation technology

4.Medium high temperature solar thermal utilization

5Thermal Engineering and Heat Transfer

6Thermal energy storage technology

7Solar hot water system

8. College Physics

9. Solar thermal power generation system 16Solar Energy Utilization: Principles, Technologies, and Engineering

10.Energy Engineering and Automation

11.Thermal Power Equipment and Applications

12.Steam turbine

13.Energy Engineering and Automation Thermal Power Equipment and Applications Steam Turbine

Number of applicable students per unit

10 people

serial number

Item number

Main parameters

1

Multi energy data computing system

1) A/D conversion: 32bit

2). Scanning frequency: 100Hz

3). Simulated channels: 22

4). Analog voltage range:+-5000mV

5). Analog voltage accuracy:+- (reading * 0.1%+offset),

6). Measurement resolution: 0.48UV;

7). Switch excitation channel: 8 voltages, 4 currents

8）. Pulse channels: 6;

9). Protocol support: Supports BODBUS RTU, RS232/485, wireless communication protocol

10). Memory: 2M

11). Power consumption: 35mA

2

Concentrated heat collection system

1. Parabolic collector:

Unit length: 7.93m

Opening width: 2.55m
Safe wind speed: ≤ level 10

Operating wind speed: ≤ 7

Parabolic equation: Y=X ^ 2/4f (f=0.7m)

Lighting area: approximately 20M2

2)Parabolic spotlight: silver plated mirror surface;

Reflectance rate: ≥ 0.93

Mirror size: 1404x1570x4mm

3) Collecting vacuum tube:

Size: φ 100x φ 42x200

Absorption rate:>0.90

Work pressure: 5MPa

Operating temperature: -35-350 ℃

4）Single axis tracking device:

Vertical high-precision worm gear reducer transmission ratio 62:1

DC deceleration motor DC24V

Single axis automatic tracking accuracy: 0.2 °

Daily range: 0-180 °

5）mechanical structure

（1）Adopting M-II type torque box structure, it has a beautiful appearance, reduces weight, and improves structural strength,

（2）Strengthening ribs are used on the side wings to enhance structural strength,

（3）Self aligning bearings are used between the main shaft and the bracket, and flange or hose connections are used between the heat collection tubes for easy installation and debugging,

（4）Double layer anti rust treatment on the surface, beautiful structure, strong wind resistance

6）Transmission system

• High strength rotary reducer with resistance to dynamic loads;
• Double stage large reduction ratio, high transmission accuracy;
• DC motor, stable power output,
• NPN encoding control, high transmission accuracy

3

heat exchange system

1) Preheater: 2 square meters, pressure 3MPa

2) Superheater: 5 square meters, pressure 3MPa

3) Horizontal thermal oil steam generator: 0.5T/H,

Heat exchange area: 20 square meters, pressure 3MPa

4) Air cooled steam condenser: 5 square meters, pressure 0.5 MPa;

4

steam turbinePower generation system

1)rated power 5-10 KW

2)rated speed 1500r/min

3)Inlet pressure 0.98MPa

4)Inlet steam temperature 180℃

5)Inlet steam volume 0.5t/h

6)Rated load of exhaust pressure 0.1MPa

5

circulatory system

Head: 25M, Speed: 2840r/min，Power: 20kW

6

Water injection system

Pressure 1.0MPa, flow rate: 2 cubic meters per hour, power: 03KW

7

Power generation monitoringsystem

Solar total radiation sensing

A. Sensitivity: (7-14) μ V/w/m-2;

B. Response time: ≤7Seconds (99%);

C. Internal resistance: about 350 Ω;

D. Stability: ≤± 1%;

E. Cosine response: ≤± 5% (at a solar elevation angle of 10 °);

F. Temperature characteristics: ± 1% (-20 ℃ -40 ℃)

G. Nonlinear: ≤± 2%;

H. Test range: 0-2000W/m2

Solar direct radiation sensor

1.Response time (95%)：≤ 25 seconds

2.Annual stability：±1%

3.Non linear error (0~1000W/m2)：±2%

4. Impedance: Approximately 100 Ω

5. Working temperature: -45~45℃

6. Spectral wavelength: (50% point: 300~3000)

7. Signal output: 0-20mV

8. High radiation intensity: 0-2000W/m2

Scattered solar radiation

2.spectral range：305-2800 nm

3.response time：7s

4.Zero offset：<10W/㎡

5.Azimuth error：<20W/㎡ （1000W/ ㎡到80°）

6.Operating Temperature： -40℃~+80℃

7.High irradiance：0~2000W/ ㎡

8.sensitivity：7 - 14μV/W/m²

9.Sensitivity temperature error：<0.1%/℃

Precision temperature sensor

A.7 channels;

B. Measurement range 0-400 ℃;

C. Measurement accuracy: ± 0.05 ℃;

D. Display resolution: 0.01 ℃.

Temperature and humidity meter

A. Measurement range -40~70 ℃/0～100%

B. Measurement accuracy: ± 0.5 ℃/±5%

C. Display resolution: 0.1 ℃

environmental wind speed

Measurement range: 0-60m/s;

Measurement accuracy: ± 0.5m/s;

C. Display resolution: 0.1 m/s

Environmental Windto, toward, at, facing

（1）Range: Mechanical 0-360º，

（2）Starting wind speed: 0.22m/s

（3) MeasurementAccuracy: ± 3 º

（4）Resolution:<0.1 º

Pressure transmitter

A.Quantity: 2 routes;

B. Pressure range: 0-0.2MPa;

C. Measurement accuracy: ＜ 50PA;

D. Temperature resistance: 0-350 ℃

flow sensor

(1) Measurement range: 0-1000kg/h;;

(3) Measurement accuracy: 0.2% (0.02-0.2kg/s);

(4) Temperature resistance: -40-350 ℃;

(5) Work pressure: 0-4Mpa;

(6) Explosion proof grade: Exib (ib) Ⅱ BT2-T5.

8

automatic control instrument

1. Number of temperature and flow channels: 7 channels for temperature; Flow 1 channel;

2. Control accuracy: ± 0.1 ℃;

3. Oil temperature detection accuracy: ± 0.05 ℃;

4. Control channel: 14 channels;

5. Console structure: stainless steel structure, surface spray treatment, outdoor all-weather working structure, embedded installation of measuring instruments;

6. Dimensions: 1200mm × 850mm × 1500mm;

7. System power supply: AC380V, 50Hz;

8. Control mode: human-machine dialogue and touch control, automatic operation status;

9. Safety protection function, automatic power-off when the load exceeds the current temperature It has high and low oil level alarm and automatic water cut-off function, whether there is water flow in the plate heat exchanger, and has the protection function of the refrigeration machine.

9

automatic control system

(1)Console structure: SUS201 steel structure, surface spray treated, outdoor all-weather working structure, embedded installation of measuring instruments;

(2)Safety protection function, automatic power-off when the load exceeds the current temperature Has high and low water level alarm function, whether there is medium flow in the plate heat exchanger, and has the protection function of the refrigeration machine;

(3)System power supply: 380V (± 10%), 50Hz (± 2%);

(4)Control mode: human-machine dialogue and touch control, automatic operation status;

(5)The control logic switch is composed of intermediate relays and contactors to achieve the switching of various circuits.

10

Sun tracker

1.Sensor tracking mode tracking error ≤ 0.2 °;

2.The response sensitivity of the collimation sensor is ≤ 0.03 °;

3.Calendar tracking mode tracking error ≤ 1.5 °;

4.The capture time of the photoelectric sensor is ≤ 5s;

5.The effective capture angle of the photoelectric sensor is ≥ 5 °;

6.Horizontal movement range ≤ 360 °, automatically returns to initial position before sunrise

Location;

7.Vertical motion range ∈ (-15 °,+100 °);

Suitable for longitude 73 ° E to 136 ° E and latitude 18 ° N to N

Any location within the 54 ° range of mainland China;

11

One time temperature control system

1 plate heat exchanger: 1 unit Material: stainless steel plate SUS316L, heat exchange area: 12m² Pressure resistance: 3.0MPa

1) High efficiency: 3-6 times higher than traditional shell and tube heat exchangers (tube and tube heat exchangers) in terms of heat transfer efficiency.

2) Small size and light weight: only equivalent to 20-30% of shell and tube heat exchangers.

3) High temperature and high pressure resistance: high temperature resistance (up to 400 ° C) and pressure resistance (working pressure 3.0MPa）.

4) Low cost: saves material costs and installation space compared to general heat exchangers (fixed tube plate heat exchangers).
5) Corrosion resistance: It has good corrosion resistance.

6)*Flow channel design：*The design of the flow channel can increase the turbulence intensity when the medium flows through the plate heat exchanger, enhance the heat transfer effect, and reduce the corresponding pressure loss

2 Cooling circulating water pumps: 1 set of material: stainless steel single-stage centrifugal water pump: with characteristics of corrosion resistance and low noise.

3 electric control valves: 1 set, material: stainless steel

12

Secondary temperature control system

1. The fuel storage tank is welded with SUS304 stainless steel plate and has a capacity of 300L. The outer surface is wrapped with 50mm high temperature resistant insulation, and the surface is wrapped with 0.5mm stainless steel plate to achieve insulation effect,

2. The electric heater is made of stainless steel, with a power of 6kW and a voltage of AC220V. It consists of three U-shaped heaters

3. High temperature heat transfer oil pump: Head: 0.27MPa Flow rate: 3m³/Motor power: 1.5KW Motor voltage: AC380V

13

Triple temperature control system

1.The tube type heater is made of SUS304 stainless steel tube, with a capacity of 2L and a pressure resistance of 0.6MPa

2.The electric heater is made of stainless steel, with a power of 500W and a voltage of AC220V;

14

Flow control system

Adopting frequency conversion controltechnology

1. High temperature heat transfer oil pump: Head 0.22MPa: Flow rate: 1.5m³/Motor power: 0.75KW Motor voltage: AC380V

2. Electric control valve: stainless steel electric ball valve is used, DN15， Voltage: AC220V;

3. The constant temperature and pressure stabilizing tank is made of stainless steel plate, with a capacity of 15L and a pressure resistance of 0.6MPa;

4. Pipeline: All pipes are made of stainless steel fittings, with threaded connections and resistance to corrosion

High temperature sealant is used for sealing, and all pipelines are protected by high-temperature resistant insulation

Wrap with warm materials to achieve insulation effect.