1
2
Renewable Sun Power
Team members
Niels Brandenburg
Wim Faes
Johannes Ihle
Hafizul Ilias
Víctor Porras
Ionuț Marius Dobroaia
3
Team members
Niels
Brandenburg
Ionuț Marius
Dobroaia
Wim
Faes
Johannes Ihle
Hafizul
Ilias
Víctor
Porras
Mechanical
Engineering
Mechanical
Engineering
Construction
Engineering
Mechanical
Engineering
Mechanical
Engineering
Electrical
Engineering
The Hague
University of
Applied
Sciences
Politehnica
University of
Bucharest
University of
Antwerp
University of
Applied
Sciences
Kempten
EPSEVG
EPSEVG
4
Index
• Planning
• Goals
• Renewable energy sources
• Mirror system
• The ORC system
• Protoype
• Working fluids
• Heat exchanger
• Generator
• Pump
• Conclusion
5
Planning
• Planning
• Goals
• Renewable energy sources
• Mirror system
• The ORC system
• Protoype
• Working fluids
• Heat exchanger
• Generator
• Pump
• Conclusion
6
Goals
• Main goal:
• Design and calculate a solar ORC system
• Sub goals:
• Calculate the minimum requirements of the condenser,
evaporator, generator and pump
• Find a matching standardized condenser and evaporator
• Find a matching standardized generator and pump
7
Renewable energy sources
Types of renewable energy
Solar (1%)
Wind (4%)
Geothermal (5%)
Biomass (48%)
Hydro (42%)
8
The need for renewable energy
3%
4%
0.5%
7%
Oil
39%
Coal
Gas
Nuclear
23%
Hydroelectric
Biomass
Others
24%
9
The mirror system
10
Mirror materials
11
Organic Rankine Cycle (ORC)
12
Pressure-Enthalpy Diagram
13
Prototype
• Pump
QPump  1.8kW
• Turbine
QTurbine  8.9kW
• Plant
QPlant  7.2kW
14
Prototype
• Solar constant
W
E0  1367 2
m
• Required area of mirrors
 Pump  50% 
wt
  ORC  q  8%
Turbine  60%
23
 ORC  8% 

 Pipes  90%  total  7%
 Mirror  95%
QPlant
A
 75m 2
E0 total
15
Working fluids
Treat water
R245 fa
Industrial water
16
R245 fa
P1( bar)
P2(bar)
Tc(ºC)
Vapor Quality (%)
Efficiency (%)
R134a
32.47
10.170
101.0
96.15
4.57
R245fa
28.15
2.496
154.0
100
9.19
R227ea
25.56
7.003
102.8
100
4.50
R423a
29.47
9.306
99.52
100
2.64
17
Industrial water
•
•
•
•
•
Excellent Thermal
Excellent Chemical Stability
High Specific Heat
Non Toxicity
Low Cost
•
Corrosion
18
Treated water
•
•
•
•
•
•
Non Toxicity
Excellent Thermal
Excellent Chemical Stability
High Specific Heat Capacity
Save Water
Low Cost
19
Heat Exchangers
A heat exchanger is a piece of
equipment built for efficient heat
transfer from one medium to
another.
20
Heat Exchangers
Applications
• space heating
• refrigeration
• air conditioning
• power plants
• petrouleum refineries
• natural gas procesing
• sewage treatment
21
Shell and tube heat
exchangers
Heat Exchangers
Types
Double pipe heat
exchangers
Plate
heat exchangers
Plate and shell
heat exchangers
22
Heat Exchangers
ORC Evaporator
Material:
Stainless steel (AISI
316L)
Pipes length:
Shell diameter:
No. of pipes:
Water flow:
R245fa flow:
1.4 m
0.44 m
196
1.2 kg/s
0.4 kg/s
23
Heat Exchangers
ORC Condenser
Material:
Stainless steel (AISI
316L)
Pipes length:
Shell diameter:
No. of pipes:
Water flow:
R245fa flow:
1.4 m
0.4 m
90
4.1 kg/s
0.4 kg/s
24
Generator
• Turbine
𝑊 = 𝑚 · 𝑊𝑡34
𝑊𝑇𝑢𝑟𝑏𝑖𝑛𝑒 ≈ 8.9 𝑘𝑊
25
Generator
• Alternator
𝑊𝐴𝑙𝑡𝑒𝑟𝑛𝑎𝑡𝑜𝑟 ≈ 8.9 𝑘𝑊
26
Pump
𝑊𝑃𝑢𝑚𝑝 ≈ 1.8 𝑘𝑊
𝑚𝑃𝑢𝑚𝑝 ≈ 0.4 𝑘𝑔/𝑠
𝑝𝑃𝑢𝑚𝑝 ≈ 31 𝑏𝑎𝑟
27
Conclusions
WGenerator = 8.9 kW
T = 145 °C
T = 40 °C
WPump = 1.8 kW
28
Thank you for your attention!
Feel free to ask any questions!
29