Siemens' UVAC (Universal Vacuum Air Collector) offers solar field operators increased thermal heat production and an outstanding degree of efficiency. The UVAC 2010, the company's next-generation solar receiver, advances the field-proven UVAC technology even further with reduced heat emissivity and a larger active area. Its resulting thermal heat production is superior in the market. The UVAC 2010 includes Siemens' patented vacuum maintenance unit and anti-'fluorescent phenomenon' coating, designed to provide stable performance over time, even under extreme conditions. Answers for energy. The unrivaled benchmark in solar receiver efficiency The Siemens UVAC 2010 is designed for outstanding thermal output UVAC 2010 benefits at a glance: Extremely high solar absorption Reduced heat loss Larger active area Increased thermal heat production No fluorescent phenomenon Long-term hydrogen prevention Siemens-backed limited warranty Based on 20 years of field-proven experience 4 7 3 5 2 1 6 Components of the Siemens UVAC 2010 1. Coated stainless steel absorber tube 2. Coated glass sleeve enclosure 3. Glass-to-metal joint 4. Bellows 5. Hydrogen and barium getters 6. External shields 7. Internal shield
The UVAC 2010 is Siemens' next‑generation solar receiver for parabolic trough fields, offering extremely high solar absorption, reduced heat loss, and a larger active area. It incorporates a patented vacuum maintenance unit and an anti‑fluorescent coating to ensure stable performance over many years, even under extreme conditions.
Key features include a stainless‑steel absorber tube with selective coating, glass‑to‑metal seals, metal bellows for vacuum‑tightness, and hydrogen‑preventing getters. Technical specifications list a length of 4,060 mm, an outer tube diameter of 70 mm, a glass envelope diameter of 115 mm, an active‑area‑to‑length ratio of 96.4 % at 350 °C, solar transmittance of ≥96.5 %, absorptance of ≥96 %, and thermal emissivity of <9 % at 400 °C, with a design life of over 25 years.
| Length | 4,060 mm |
|---|---|
| Stainless steel tube outer diameter | 70 mm |
| Glass envelope outer diameter | 115 mm |
| Active area‑to‑length ratio | 96.4 % at 350 °C |
| Solar absorptance factor | ≥96 % |
| Thermal emissivity factor | <9 % at 400 °C |
| Vacuum maintenance design life | >25 years |
The UVAC 2010 has an active area‑to‑length ratio of 96.4 % at 350 °C.
The receiver is 4,060 mm long.
It comes with a Siemens‑backed limited warranty.