Solar Thermal Technology: Flat Plate Vs. Vaccum Tube

853 views
791 views

Published on

Richard Good of Solar Services Inc. discusses the technical benefits of using a Flat Plate vs. Evacuated Tubes in your solar hot water installations.

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
853
On SlideShare
0
From Embeds
0
Number of Embeds
9
Actions
Shares
0
Downloads
21
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Solar Thermal Technology: Flat Plate Vs. Vaccum Tube

  1. 1. Flat Plate Collectors VS. Evacuated Tubes Presented By: Richard Good
  2. 2. AP-30
  3. 3. AE-40
  4. 4. Performance in (Btu’s Per ft^2) Btu's Per Panel Per Day Gross Area Category Clear Day Mildly Cloudy AE-40 39.78 ft^2 AE-40 AP-30 AE-40 AP-30 AP-30 44.76 ft^2 A) (-9F) 52 46.1 39 34.8 B) (9F) 47 44 35 32.7 C) (36F) 40 40.6 27 29.3 D) (90F) 24 34.2 13 23 E) (144F) 9 27.1 1 16.8 Btu's Per ft^2 Category Clear Day Mildly Cloudy AE-40 AP-30 AE-40 AP-30 A) (-9F) 1307 1030 980 777 B) (9F) 1181 983 880 731 C) (36F) 1006 907 679 655 D) (90F) 603 764 327 514 E) (144F) 226 605 25 375
  5. 5. Efficiency Based On Temperature 1 0.9 0.8 0.7 Collector Efficiency 0.6 Unglazed Pool Collectors 0.5 Selective Flat-Plate 0.4 Evacuated Tubes 0.3 0.2 0.1 1000 W/m^2 Irradiance 0 0 50 100 150 200 250 300 Collector Inlet Temperature Above Ambient (F)
  6. 6. Ice and Snow Issues

×