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SOLAR POWER CONCENTRATION TECHNOLOGIES

SOLAR PRODUCTS

 

The sun’s heat and light provide an abundant source of energy that can be

harnessed in many ways. A variety of technologies have been developed to take

advantage of solar energy, including photovoltaic systems and concentrating solar

power thermodynamic systems which heat water or thermal fluids through

concentration of solar process heat, that can be used for production of electricity,

for heating and conditioning, production of steam, salt water desalination, food

cooking systems, etc.

 

The solar energy that reaches the earth in one year per every square metre is equal

to the energy obtained from a barrel of oil.

 

Solar power can be used in both large-scale applications and in smaller systems for

the home. Businesses and industry can diversify their energy sources, improve

efficiency and save money through the use of solar technologies for heating and

cooling in industrial processes where thermal power (hot water or steam) is to be used.

For the linear-parabolic reflector

system the Quasar panel uses

a large-scale, commercially

proven technology. The system

employs a linear parabolic

reflector that concentrates solar

heat to one line only, called

« focus line ». On such focus

line a glass tube with metal

core is installed, inside which

diathermic oil is flowing, that will

be heated at 250°C - 300°C by

concentrated solar energy.

QUASAR PANEL

The panel employs special electronic systems to follow the sun’s trajectory, keeping

the reflector to the optimum position to make the most of solar radiation during the day.

SALT WATER DESALINATION SYSTEM

SOLAR ENERGY DESALINATION SYSTEM

 

The Quasar reflectors are capable to produce a minimum of 600 litres of water per day thanks to solar energy, as during a sunny day it is possible to get about 8 KWh of thermal energy transferred to the desalination system through diathermic oil. The plant, consisting of the panel and tanks, is designed in order to be carried in a wooden case with dimensions of 300x200x100 cm., to be installed and operated in about 10 man-hours, with no connection to electricity and therefore suitable for stand-alone applications.

The power required for the electric control devices and the pump will be provided by an in-built photovoltaic panel and a storage battery, should any orientations or special functions during no solar radiation periods be required. The system consists of fully stainless steel apparatuses, the containers for drinking water are in stainless steel suitable for food, the structure is in galvanized steel painted with special powders to be resistant against corrosive agents and ensure a life of at least twenty years. The mirrors are highly reflecting and, in case of installation on sites with severe environmental conditions, for instance with sandy or corrosive powders, they can be easily replaced at the cost of some hundreds of Euro, thus keeping the system at the highest efficiency at all times. The system can be provided with a filter and a unit to add oligomineral salts into the water in order to make it drinkable. The fluid to be discharged can be diluted and set to a temperature compatible with the standards in force in the various countries, therefore with no environmental impact.

ELECTRIC POWER PRODUCTION SYSTEM

Through ORC (Organic Rankine Cycle) turbines.

The application for electric power production shall be evaluated from time to time on the basis of specific requirements. In fact, the operation data, performance and relevant costs depend on the

size/power/performance of the turbine to be used as well as on the climatic conditions of the installation site. The size of the turbines to be quoted at present are: 30 – 50 – 250 and 500 KW. Systems with some megaWatts using several turbines may also be installed in order to ensure a continuous power supply as it is not necessary to stop the plant completely, but only partially. The operating temperature of the turbines ranges from 93°C to 150 °C.

FOOD COOKING SYSTEM FOR SOLAR CONCENTRATORS

Thanks to the availability of a fluid (diathermic oil) at 350°C, it is possible to heat a plate for food cooking (meat, fish, vegetables, etc.) and keep it at a temperature of 180 – 220°C.

Such a plate, that has an average consumption of about

3 kW/m2, allows to cook for over 50 people per hour. The system also includes an area to put some pans on for boiling, with a similar capacity and consumption. The power required for such cooking option is roughly half of the total power generated by the plant. The non-used power can be stored so that the plant will be able to work for a few hours after solar radiation has gone (see picture below). The system allows to cook in a quite ecologic way because no polluting agents are generated from combustion. Moreover, no valuable power, such as electricity, is consumed and no toxins are generated in the food as a consequence of carbonisation due to high temperatures.

FEATURES OF ABSORBERS

- Applications

Cooling and heating for homes, supermarkets,

exhibitions, offices, hotels, etc.,

designed to use solar energy during the day and fuel

vernight for 365 days a year.

- Modulation of refrigerating power from 20 to 100%, with relevant reduction of

requirements of supply water, electric power and cooling water, on the basis of

the actual refrigerating/thermal requirements, thus resulting in an energy saving.

MONOBLOCK:

Combined, monoblock absorption unit fed by diathermic oil and gas, for production of chilled water for cooling or hot water for heating, with the following characteristics:

 

- combined supply :            diathermic oil – gas

- chilling/absorbing fluid:   water / lithium bromide

- condensation:                  recycled water from cooling tower

 

The chiller for production of chilled water for conditioning or heating consists mainly of a monoblock comprising

The solar concentrator can create:             heating, hot water, cooling water, cooling air conditioning, steam

COOLING & HEATING SYSTEM THROUGH ABSORPTION TECHNOLOGY

PANGOLD INTERNATIONAL SRL

 London (UK)  Constanta (RO)  Vicenza (IT) - Mobile +44 7578934302 (UK) +40 763519300 (RO) +39 3461227380 (IT)

P.IVA: 03813910241  Info@pangoldinternational.com