Concentrated solar thermal power plants

Concentrated solar thermal power plants

Concentrated solar thermal power plants

Concentrated solar thermal power plants

ALSOLEN 300

Small to medium capacity 

Technical specification

ALSOLEN 300, a simple and optimized design based upon:

  • A solar field using the Fresnel mirrors technology
    • The solar beams are reflected by mirrors and concentrated to receivers in which circulates a heat transfer fluid warmed up to 300 °C. This heat transfer fluid participates to store the energy.
  • A thermal energy storage system
    • The thermal energy system is directly linked to the fluid loop of the solar power plant. It uses the thermocline principle (a thin horizontal distinct layer of fluid which alloys a rapid change of temperature of the heat transfer fluid). The heat stored is available on demand as the consumption goes even all night if necessary.

Multiple Applications

ALSOLEN 300 produces heat that can be simultaneously transformed into multiple applications:

  • Electricity production
  • Seawater desalination or brackish water (ex: production of drinkable water)
  • Solar cooling (ex: air conditioning)
  • Heat production (ex: industrial drying or sterilization)

ALSOLEN 300 concentrated solar thermal power plants are adaptable in size, power and hours of storage fitting to the customers’ requirements.

Construction and maintenance

ALSOLEN 300 has given priority to easiness during the construction phase. Due to an innovative mobile factory, on site manufacturing and assembly process of the solar field, logistics costs are minimized, local employment favored, carbon footprint seriously reduced.

The mobile factory contributes to ensure high performance of the solar power plant.

ALSOLEN 300 is smoothly operated and boasts an extended lifespan. Priority has been given to be ecofriendly during operations. An innovative robotized concept has been developed for minimizing use of water during the mirrors cleaning process.

Patented technologies

ALSOLEN has launched a thorough R&D campaign to guarantee best-in-class technology for its clients. Driven by a unique policy of constant innovation the company has been mobilizing a network of experts from research departments and industrials. ALSOLEN’s engineers, technicians and their partners, have contributed to the registration of several patents among which:

  • Receiver: high temperature absorber
  • Reflector: a specific sensor to measure optical performance
  • Thermal storage: internal configuration for a stable thermocline

This work has led to the construction of a prototype fully representative of the multi-thermal applications. Equipped with a 4 hours’ heat storage system, the prototype is able to deliver simultaneously:

  • Electricity
  • Desalinated water through a Multi Effect Distillation
  • Solar cooling (air cooling and ice)
     
ALSOLEN 300 Concentrated solar thermal power plants

ALSOLEN 450

Large capacity 

Technical specification

ALSOLEN 450, two major breakthroughs:

  • Superheated steam directly generated from the solar field
    • The solar beams are reflected by mirrors and concentrated to receivers in which circulates water used as a heat transfer fluid. The water is vaporized and superheated up to 450°C. 
  • A thermal energy storage system
    • The thermal energy system is declined in three stages: High, medium and low temperature. This unique system allows to discharge the superheated steam at a constant temperature which improves the thermodynamic cycle’s performance. This storage concept does not use molten salts. 

Applications

Two major applications are possible with ALSOLEN 450: 

  • Transform the heat into electricity through a turbine producing a power output or more than 50 MWe.
  •  Provide process heat for industrial purpose 

Construction and maintenance

ALSOLEN 450 is easy to build. Due to an innovative mobile factory, on site manufacturing and assembly process of the solar field, logistics costs are minimized, local employment favored, carbon footprint seriously reduced. The mobile factory contributes to ensure high performance of the solar power plant.

ALSOLEN 450 is smoothly operated and boasts an extended lifespan. Priority has been given to be ecofriendly during operations. An innovative robotized concept has been developed for minimizing use of water during the mirrors cleaning process.

Patented technologies

ALSOLEN has launched a thorough R&D campaign to guarantee best-in-class technology for its clients. Driven by a unique policy of constant innovation the company has been mobilizing a network of experts from research departments and industrials. ALSOLEN’s engineers, technicians and their partners, have contributed to the registration of several patents among which:  

  • Reflector: a specific sensor to measure optical performance
  • Thermal energy storage: internal for thermal gradient regularity
  • The prototype is actually being tested and a full demonstration of its benefits is expected by 2018
ALSOLEN 450 Concentrated solar thermal power plants

Heat4Cold

From ice to air conditioning

ALSOLEN develops and commercializes a portfolio of absorption chillers under the brand name Heat4Cold. 

Heat4Cold is a refrigerating machine converting non-used heat generated by industrials or solar thermal plants into cold water. 

The cold water generated by absorption chiller can be used through air conditioning and/or ice. 

Efficient with at least 40% savings in electricity consumption, Heat4Cold reduces by 80% the greenhouse gases emissions. 

With a zero Global Warming Potential, the refrigerant fluid used, ammonia, respects the environment requirements. 

Heat4Cold ALSOLEN