Experimental study of the thermal performance parameters of a liquid-heating flat plate solar collector. Master's thesis

Technical Report · Mon Sep 01 00:00:00 EDT 1980

OSTI ID:6298391

Woodrum, C D

From the results of this investigaiton the following conclusions are drawn: (1) The use of turbulators greatly enhanced the internal heat transfer coefficient, but unfortunately, made little difference in the overall performance; (2) The use of turbulators improved flow uniformity by increasing the pressure drop in the tubes; (3) The diameter of the headers should be larger to help ensure flow uniformity. This is especially true for low flowrate conditions such as those tested; (4) The bond conductance for the clamped fin was competitive with soldering since little gain in performance is realized after a value of 20 B/hr-ft-F is achieved; (5) The bond conductance of the woven fin configuration was unacceptable; and (6) Kalwall material was essentially opaque to far infrared radiation.

• Research Organization: Air Force Inst. of Tech., Wright-Patterson AFB, OH (USA). School of Engineering
• OSTI ID: 6298391
• Report Number(s): AD-A-091085
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
FLAT PLATE COLLECTORS
PERFORMANCE
BONDING
COVERINGS
FINS
FLOW RATE
HEAT TRANSFER
PRESSURE DROP
SOLDERING
TURBULENT FLOW
ENERGY TRANSFER
EQUIPMENT
FABRICATION
FLUID FLOW
JOINING
SOLAR COLLECTORS
SOLAR EQUIPMENT
WELDING
141000* - Solar Collectors & Concentrators