Analysis of Thermal Storage Temperature Control for Solar Thermal Power Plant

Author(s):  
Fauzi Handy Dewanto ◽  
Burhanuddin Halimi
Author(s):  
Khamid Mahkamov ◽  
Piero Pili ◽  
Roberto Manca ◽  
Arthur Leroux ◽  
Andre Charles Mintsa ◽  
...  

The small solar thermal power plant is being developed with funding from EU Horizon 2020 Program. The plant is configured around a 2-kWel Organic Rankine Cycle turbine and solar field, made of Fresnel mirrors. The solar field is used to heat thermal oil to the temperature of about 240 °C. This thermal energy is used to run the Organic Rankine Cycle turbine and the heat rejected in its condenser (about 18-kWth) is utilized for hot water production and living space heating. The plant is equipped with a latent heat thermal storage to extend its operation by about 4 hours during the evening building occupancy period. The phase change material used is Solar salt with the melting/solidification point at about 220 °C. The total mass of the PCM is about 3,800 kg and the thermal storage capacity is about 100 kWh. The operation of the plant is monitored by a central controller unit. The main components of the plant are being manufactured and laboratory tested with the aim to assemble the plant at the demonstration site, located in Catalonia, Spain. At the first stage of investigations the ORC turbine will be directly integrated with the solar filed to evaluate their joint performance. During the second stage of tests, the Latent Heat Thermal Storage will be incorporated into the plant and its performance during the charging and discharging processes will be investigated. It is planned that the continuous filed tests of the whole plant will be performed during the 2018–2019 period.


2013 ◽  
Vol 664 ◽  
pp. 1007-1011
Author(s):  
Y.B. Liao ◽  
M. Yang ◽  
C. Bi ◽  
K. Zhang ◽  
Y.Q. Song ◽  
...  

The constant temperature control is required for the steady output of photo thermal generator of a solar thermal power plant in the case of transient mutation of sun light . The potential risk incurred by the conventional photo thermal control system based on the temperature dependent flux control is thoroughly explored, with a proposition of a system control technique based on the law of energy conservation for the project. We present in the research that the critical factor for keeping constant temperature during photo thermal conversion is to ensure the equilibrium between input and output energy all the time between different parts of photo thermal conversion. The idea is implemented by the sun light dependent flux control. This research provides solution for overcoming the damage to susceptible system because of the transient mutation of sun light.


2012 ◽  
Vol 232 ◽  
pp. 609-613
Author(s):  
Ali Baghernejad ◽  
Mahmood Yaghoubi

In the present study, a specific and simple second law based exergoeconomic model with instant access to the production costs is introduced. The model is generalized for a case study of Shiraz solar thermal power plant with parabolic collectors for nominal power supply of 500 kW. Its applications include the evaluation of utility costs such as products or supplies of production plant, the energy costs between process operations of an energy converter such as production of an industry. Also attempt is made to minimize objective function including investment cost of the equipments and cost of exergy destruction for finding optimum operating condition for such plant.


Sign in / Sign up

Export Citation Format

Share Document