Solar installations

Go green and harness the free power of the sun

Throughout most of the year, radiation from the sun can raise the temperature of water to a point suitable for domestic use. With careful planning, it is possible to harness the free power of the sun to heat a house and provide hot water for showers and baths, and in addition, heat a swimming pool.
Only on cloudy days is another heat source needed to compliment the system.

Euro-lec are able to design, supply and install solar panel installations
Using only high quality products for: -

• Pool heating
• Under floor heating
• Domestic hot water

Products

Integrated and pressurised Solar Water Heater 200L

This product also called Pre-heat and pressurized solar water heater, combines the advantages of a Non-pressure solar water heater and Separated pressurized solar water heater together. Frankly speaking, the system has a copper coil inside the Non-pressure solar water tank which allows water at mains pressure to be delivered. The hot water produced and stored inside the tank improves on the problems of traditional solar water heaters, reducing limited hot water volume and long heat up times.

The vacuum tube collectors absorb heat energy from the sun and heat the water in the storage tank. When domestic hot water taps are opened, cold water flows through the copper coil, where a heat exchange takes place and the water temperature is gradually raised and finally the outlet water is hot.

Product information:
1. Product model: XK-IP
2. Inner tank material: food grade stainless steel SUS304-2B with thickness of 0.4mm.
3. Outer shell material: galvanized coloured steel sheet with thickness of 0.4mm and 55mm polyurethane foaming insulation.
4. Vacuum tubes: Ø58 1800mm.
5. Assistant auto filler tank: 5L
6. Internal copper coil 6bar, length: 35m.
7. Frame: Galvanized steel plate with thickness of 1.5mm
8. Pressure bearing: =0.7Mpa
10. Daily efficiency: 55% ( 42% in winter)
11 Hailstone resistance: Dia=25mm
12. Back up electric heater 1500W.

Work principle for Integrated-pressurized solar water heater

Separated and pressurised Solar Water Heater

This system is a combined pressurised collector and storage tank and work station together and is specially designed for larger properties and able to offer hot water farther distances than non pressurised systems.

Using heat pipes for the heat conduction, a high absorption efficiency and rapid heat transfer is obtained. As no water is introduced into the vacuum tubes, they remain in a perfect and relatively low maintenance free condition. With an assisted electrical heater and operated from an intelligence controller, the system can provide hot water more or less at anytime.

The solar collectors gather energy and heat and transfer it to a water/anti-freeze solution which is pumped around a copper coil in the pressurised tank, where a heat exchange takes place. When the temperature of the water in the tank reaches the set value, the controller shuts off the circulation pump automatically.

The highly efficient absorptive coating and vacuum insulation technology provides a much higher heat output that general vacuum tubes, even in cloudy and wet conditions and in winter can operate to a temperature of -35.

Product information:
1. Product model: XK-SP
2. Inner tank material: food grade SUS304-2B with thickness from 1.0 mm to 2.0mm.
3. Outer shell material: galvanized steel sheet with thickness from 0.5mm to 0.6mm.
4. Vacuum tube: Ø58-1800mm vacuum tube with heat pipe.
5. Heat pipe: with thickness of 0.75mm and anti-freeze to -35
6. Copper coil Dia: 12mm with thickness of 1.0mm.
7. Copper coil length: 20m (bottom),15m (up);or there abouts.
8. Electrical heater power: 3000W , 50HZ / 220V
9. Frame: Galvanised steel plate with thickness of 1.5mm
10. Pressure bearing: 0.7Mpa
11. Daily efficiency: 55% (42% in winter)
12. Haistone resistance: 25mm Dia

Photovoltaic

Why should I install a photovoltaic system
A photovoltaic system never needs refueling, emits no pollution, and can be expected to operate for over 30 years while requiring minimal maintenance. A typical PV system on a house roof could prevent over 34 tonnes of greenhouse gas emissions during its lifetime.
With global climate change threatening all our futures, we need to switch to clean, renewable forms of energy and electricity production. Solar electric panels can generate electricity that is free from pollution, fuelled by the natural resource of the sun

Solar Energy

Solar energy is the cleanest and most inexhaustible of all known energy sources. It is the heat, light and radiation that is emitted from the sun. It contains huge amounts of energy and is responsible for almost all the natural processes on earth. The suns energy, although plentiful, has been hard to directly harness until recently.

Solar Energy can be classified into two categories, Thermal and Light. Photo-voltaic cells (PV) use semiconductor-based technology to convert light energy directly into an electric current that can either be used immediately, or stored in a battery, for later use. PV panels are now becoming widely used as they are very versatile, and can be easily mounted on buildings and other structures. They can provide a clean, renewable energy source which can supplement and thus minimize the use of mains electricity. In regions without main electricity such as remote communities, PV energy can provide a reliable electricity supply. The disadvantage of PV panels is their high cost and relatively low energy conversion rate (only 13-15%). Thermal solar on the other hand has average efficiency levels 4-5 times that of PV and is therefore much cheaper per unit of energy produced. Thermal energy can be used to passively heat buildings through the use of certain building materials and architectural design, or used directly to heat water for household use. In many regions, solar water heaters are now a viable supplement or alternative to electric or gas hot water production.

Thermal energy obtained from the sun can be used for a number of applications including producing hot water, space heating and even cooling via use of absorption chilling technology Using solar and other forms of renewable energy reduces reliance on fossil fuels for energy production, thus directly reducing CO2 emissions. CO2 emissions contribute to global warming, an environmental issue which is now of great concern. The average household can reduce CO2 emissions by as much as 20% by installing solar collector supplied and installed by euro-lec.For several decades, flat plate thermal solar collectors have been in use, but only in relatively small numbers, particularly in Western countries.

Evacuated tubes have also been in use for more than 20 years, but have always been much more expensive and therefore only chosen for high temperature applications or by those with money.In recent years the production volume of evacuated tubes has exploded, resulting in greatly lowering manufacturing and material costs. The result is that evacuated tubes are now similar in price to flat plate, but with the insulating benefits of the evacuated tube, they have now become the default choice for thermal solar applications worldwide.