Microtube strip heat exchanger

Technical Report · Tue Apr 02 00:00:00 EST 1991

OSTI ID:5554197

Doty, F D

During the last quarter, Doty Scientific, Inc. (DSI) continued to make progress on the microtube strip (MTS) heat exchangers. The team has begun a heat exchanger stress analysis, however they have been concentrating the bulk of their analytical energies on a CFD model to determine the location and magnitude of shell-side flow maldistribution which decreases heat exchanger effectiveness. DSI received 120 fineblanked tubestrips from Southern Fineblanking (SFB) for manufacturing process development. Both SFB and NIST provided inspection reports of the tubestrips. DSI completed the tooling required to encapsulate a tube array and press tubestrips on the array. Pressing the tubestrips on tube arrays showed design deficiencies both in the tubestrip design and the tooling design. DSI has a number of revisions in process to correct these deficiencies. The research effort has identified a more economical fusible alloy for encapsulating the tube array, and determined the parameters required to successfully encapsulate the tube array with the new alloy. A more compact MTS heat exchanger bank was designed. 1 ref., 4 figs.

• Research Organization: Doty Scientific, Inc., Columbia, SC (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG01-90CE15440
• OSTI ID: 5554197
• Report Number(s): DOE/CE/15440-T2; ON: DE91009884
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
HEAT EXCHANGERS
HEAT TRANSFER
PERFORMANCE TESTING
ALLOYS
HEAT SINKS
PROGRESS REPORT
STRESS ANALYSIS
THERMAL TESTING
THERMODYNAMIC MODEL
TUBES
DOCUMENT TYPES
ENERGY TRANSFER
MATERIALS TESTING
MATHEMATICAL MODELS
NONDESTRUCTIVE TESTING
PARTICLE MODELS
SINKS
STATISTICAL MODELS
TESTING
420400* - Engineering- Heat Transfer & Fluid Flow