Practice Quiz

Green Plumbing

Category - Solar Hot Water

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Each of the following is a widely-accepted fact about the design of solar thermal installations, except:
  1. No universal solar thermal installation design exists
  2. The transfer liquid used has no effect on collector performance
  3. More collectors can usually be added to an installation later, if needed
  4. Whether a system is passive or active is one of its main design considerations.
Explanation
Answer: B - The transfer liquid used in the solar thermal installation is indeed one of the factors in collector performance. Propylene glycol is one of the most popular current transfer liquids. Each of the other three responses is widely accepted. There is no universal solar thermal design, as they vary widely based upon site and needs. Most systems can add more collectors if needed. The active vs. passive status of a system is key to its design.
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