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From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels

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1 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Configuration of in-line chip pairs. Subcooled coolant enters from the right.

2 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Design of the in-line chip pairs, offsets and location of thermocouples. Heaters are 12 mm in length, and offset from the wall is 0.6 mm. All dimensions are in mm.

3 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Assembly of flow chamber with heaters. The gasket determines the gap between heaters. Inlet plenum is on left side of assembly.

4 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Flow loop and flow rate monitoring system

5 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Power input calculated from single phase energy balance compared to ideal case (zero losses). Deviations occur in regions of two phase flow.

6 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Exit quality based on Eq. (2) and total input power. Subcooling = 21 °C. d = 0.36 mm.

7 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Overall heat transfer coefficient versus empirical quality. Hollow data points are for a single chip pair [1].

8 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Chip pair temperatures with second pair at 1.5X the average power density and Novec™ d = 0.36 mm. “First set” is chip pair at flow inlet. (a) G = 250 kg/m2s, Ti = 25 °C; (b) G = 250 kg/m2s, Ti = 55 °C; (c) G = 500 kg/m2s, Ti = 25 °C; (d) G = 500 kg/m2s, Ti = 55 °C; and (e) G = 250 kg/m2s, Ti = 66 °C.

9 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Subcooling effect on local heat transfer coefficients with Novec™ 7200 and uniform applied power. Each value of the heat transfer coefficient represents an average over power density range of Fig. 6. First chip pair is denoted by “1” on the abscissa. d = 0.36 mm.

10 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Heat transfer coefficients with uniform power density for Novec™ “First set” is the chip pair at inlet. d = 0.36 mm. (a) G = 250 kg/m2s, Ti = 25 °C; (b) G = 500 kg/m2s, Ti = 25 °C; (c) G = 250 kg/m2s, Ti = 55 °C; (d) G = 500 kg/m2s, Ti = 55 °C; and (e) G = 250, Ti = 66 °C.

11 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Chip temperatures with uniform power density with Novec™ d = 0.36 mm. “First set” is heater pair at flow inlet. (a) G = 250 kg/m2s, Ti = 25 °C; (b) G = 250 kg/m2s, Ti = 55 °C; (c) G = 500 kg/m2s, Ti = 25 °C; and (d) G = 500 kg/m2s, Ti = 55 °C; and (e) G = 250 kg/m2s, Ti = 66 °C.

12 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Overall heat transfer coefficients versus exit quality for Novec™ Uniform power density. d = 0.36 mm. (a) G = 250 kg/m2s and (b) G = 500 kg/m2s.

13 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Subcooling effect on local heat transfer coefficients with Novec™ 7200 and uniform applied power. Each value of the heat transfer coefficient represents an average over power density range of Fig. 9. First chip pair is denoted by “1.” d = 0.36 mm.

14 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Heat transfer coefficients with Novec™ 7200 in terms of power density at second chip pair at 1.5X average power density. d = 0.36 mm. “First set” is the chip pair at inlet. (a) G = 250 kg/m2s, Ti = 25 °C; (b) G = 250 kg/m2s, Ti = 55 °C; (c) G = 500 kg/m2s, Ti = 25 °C; (d) G = 500 kg/m2s, Ti = 55 °C; and (e) G = 250 kg/m2s, Ti = 66 °C.

15 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Overall heat transfer coefficients versus exit quality for Novec™ Uniform power density. d = 0.36 mm. (a) G = 250 kg/m2s and (b) G = 500 kg/m2s.

16 From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels
Date of download: 10/20/2017 Copyright © ASME. All rights reserved. From: Flow Boiling in an In-Line Set of Short Narrow Gap Channels J. Heat Transfer. 2015;137(11): doi: / Figure Legend: Overall Nusselt number with correlation relations for d = 0.36 mm. Results for a single chip pair [1] are shown for comparison.


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