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Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties.

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Presentation on theme: "Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties."— Presentation transcript:

1 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Representative response to state variation and continuous thermal state averaging heat dissipation schemes Figure Legend:

2 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 The EMU and one constant temperature radiator integration concept. (Space suit image credit: NASA). Integration scheme modified from Ref. [13]. Figure Legend:

3 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Mechanical counter pressure suit concept and constant flux concept. Space suit image credit: Professor Dava Newman, MIT. (Used with permission–Illustration: Cam Brensinger.) Integration scheme modified from Ref. [13]. Figure Legend:

4 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Example of intermediate emissivity settings achieved with a variable potential source Figure Legend:

5 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Example of effective net emissivity values achieved by high–low state mixing Figure Legend:

6 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Space suit radiator surface area scaled to a cylinder approximation Figure Legend:

7 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Cylinder area approximation's interactions with the lunar pole environment. A, B, C, and D correspond to β angles at 90 deg increments starting with A = 0 deg Figure Legend:

8 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Radiative power distributions across suit segments, 293.72 K (69.02 °F) Figure Legend:

9 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Radiative power distributions with variation in emissivity and radiator temperature Figure Legend:

10 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Suit temperature requirements for constant flux segment dissipation, 300 W Figure Legend:

11 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Emissivity setting requirements for constant flux at a lunar pole at 300 W of constant dissipation Figure Legend:

12 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Emissivity setting requirements for constant flux in lunar pole environment Figure Legend:

13 Date of download: 6/26/2016 Copyright © ASME. All rights reserved. From: Defining a Discretized Space Suit Surface Radiator With Variable Emissivity Properties J. Thermal Sci. Eng. Appl. 2015;7(4):041014-041014-9. doi:10.1115/1.4031132 Allowable total emissivity variations for thermal comfort Figure Legend:


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