PAST PROJECTS

2 small Q Solar air heaters for a house

Brief:

• Location: Victoria, Australia (37⁰ latitude)
• Single storey house with large eaves
• Installation on a North-facing wall, about 10 degrees azimut offset
• The owner was very satisfied and said:"..the efficiency is amazing..".

Details:

• The owner installed himself the 2 Q Solar ARC, each having an area of 2.1m²
• The units are equipped with AC fans to provide high heating efficiency
• During sunny winter days the solar air heaters provide all the necessary heating.
• The output of both heaters is of up to 4kW (depending on sunshine)
• The solar heaters made savings of about $4/day and paid back in about 3 years
• During 10 years of service, the heaters will provide 1/3 price heat.
• The real savings are larger because the fossil fuel price is increasing.
• Q Solar were surprised to subsequently find out that the owner, Mr M. Whiters is a HVAC engineer who thoroughly tested our solar heaters and has presented this testimonial.

Large Q Solar air heater for a tourist villa in Eastern Europe

Brief:

• Location: Eforie Sud, Eastern Europe (45⁰ latitude)
• Multi-storey tourist villa
• Installation on a South-facing wall with about 15 degrees azimut offset
• The owner said:"...very reliable, do not require maintenance and I make important savings".

Details:

• The task was to provide heat to a villa comprising 30m² tourist units
• For a unit, we installed a Q Solar ARC having an area of 6m²
• The solar heater is equipped with an AC fan
• During sunny days the solar air heaters provide all the necessary heating.
• In sunny weather it delivers 60-70⁰C air at the outlet; in cloudy weather 30-40⁰C
• The heating power output of a solar heater during sunny days is of about 3.5kW
• The solar heater made savings of about $3/day and paid back in about 2 years
• During 10 years of service, the heaters will provide 1/4 price clean heat.
• The real savings are larger because the fossil fuel price increases.
• The owner, Mr Cristian Mamo has presented this testimonial.

Q Solar air pre-heater for burner

Brief:

• Location: Brisbane, Australia (27⁰ latitude)
• Industrial LPG burner
• Installation on a roof of very small tilt
• The payback time was 2 years.

Details:

• We installed a Q Solar ADU air pre-heater of 25m² for an LPG burner .
• The solar heater did not need a fan because the burner has a blower fan.
• During 10 years of service, the heater could provide 1/5 price clean heat.
• The real savings are larger, because the fossil fuel price increases.

Large Q Solar industrial drier

Brief:

• Location: Brisbane, Australia (27⁰ latitude)
• Industrial drier for food supplements
• Installation on a horizontal roof
• The beneficiary company has shown interest to order another Q Solar heater.

Details:

• Above is a satelline image of the 307m² solar heater
• The beneficiary required to dry about 2 tonnes of product from 98% to 4% moisture
• The 4GJ of net heat requirement had to be transmitted through 5.3m³/s of air
• We installed a Q Solar ADU air heater, of 307m²
• An LPG burner compensates during times with low solar radiation.
• Drying tipically takes about 20 hours, therefore we have made and installed a 22 tonnes heat accumulator to allow drying when there is no sunshine.
• The heat accumulator also diminishes the maximum air temperature from 70⁰C to 60⁰C not to destroy the bio-active substances of the product.
• An LPG burner provides backup, but cannot heat the air as uniformly as the solar air heater
• The nominal power of the solar heater is 210kW for the given conditions
• The solar air heater can provide about 3GJ of heat ($135) per day
• If used 3 days/week, the solar air heater could pay back in less than 2 years
• During the 7 years of warranty, the heater could provide 1/4 price heat.
• The director of the company, Mr A. Scott has presented this testimonial.