Main parameters of Si14 Solar thermal power generation system

Contents Description and parameters

System specification

Rated power output

20-35kw

Frequency

50Hz

Voltage

3-phase 400VAC

Light-electricity conversion ratio

28-31%

System weight

5-6t

Tracking system

Type

Parabolic dish

Rated DNI

Based on the local solar resources

Dish area

94.8-105.4 

Intercept ratio

94-100%

Reflectivity

93-95%

Focal distance

7.3-8.5m

Type of tracking

Dual axis tracking

Stirling power conversion unit

Engine type

4 cylinder Stirling engine

Engine model

Si14-001/base/NRB

Working gas

H2

Heater head tube temperature

720°C

Maximum working pressure

20Mpa

Swept volume

380cm3

Generator

Induction motor

Rotation speed

1500rpm

voltage

3-phase 400VAC

weight

920kg

Environmental condition for normal operation

DNI

250W/-1050W/

Wind speed

<13.6m/s

Ambient temperature

-20°C-+50°C

Snow load

<250mm or <25kg/

Earthquake

≤6 magnitude

Altitude

≤3000m

Humidity

≤90% (25°C)

Survival conditions

Ambient temperature

-40°C-+70°C

Wind speed

<40m/s

Hail size

≤19mm

Sand storm

≤20m/s

Ice load

≤150mm

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