Experimental analysis of heat transfer characteristics and pressure drop through screen regenerative heat exchangers. Master's thesis

Technical Report · Wed Dec 01 00:00:00 EST 1993

OSTI ID:5301875

Wiese, J L

This study investigated the effect on heat transfer and friction characteristics for screen regenerative heat exchangers with the screen thickness reduced by rolling. The experiments were performed on 250 and 325 mesh, 304 stainless steel screen using helium gas. Reynolds numbers, based on hydraulic radius, Re, were between 10 and 100. Both the Colburn factor, StPr(2/3), and friction factor, f, decreased as the screen thickness was reduced. A correlation was found for predicting friction factor, f. The drag coefficient per screen remained nearly unchanged for thicknesses reduced not more than 30 percent. The decrease in Colburn factor was significant for Re less than 40. For Re between 40 and 100 the decrease in Colburn factor was less than the experimental uncertainty. Regenerative Cooling, Regenerators, Cryogenic Engines, Screens (Woven Materials), Mesh, Stirling Cycle.

• Research Organization: Air Force Inst. of Tech., Wright-Patterson AFB, OH (United States). School of Engineering
• OSTI ID: 5301875
• Report Number(s): AD-A-273902/7/XAB; AFIT/GAE/ENY-93D-30
• Resource Relation: Other Information: Master's thesis
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
HEAT EXCHANGERS
HEAT TRANSFER
PRESSURE DROP
SCREENS
FRICTION
EXPERIMENTAL DATA
REGENERATORS
STAINLESS STEELS
STIRLING CYCLE
ALLOYS
DATA
ENERGY TRANSFER
HIGH ALLOY STEELS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
NUMERICAL DATA
STEELS
THERMODYNAMIC CYCLES
420400* - Engineering- Heat Transfer & Fluid Flow
425003 - Engineering- Power Cycles- Stirling- (1980-)