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Date of download: 11/5/2017 Copyright © ASME. All rights reserved.

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1 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Schematic of resolute marine energy [10] wave-powered desalination system. The paddle, driven by ocean waves, powers a pump that sucks water from a beach well and pushes it toward a reverse osmosis membrane. The pressure pulsations in the beach well water are stabilized by a pressure damping device.

2 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: (a) Stub-filters, (b) elastic pipe, and (c) accumulators

3 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Bladder accumulator

4 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Different shapes tested for pipe

5 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Material and flow cross-sections in the pipe

6 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: (a) Cylindrical pipe with uniform stress field. (b) Triangular pipe with non-uniform stress field and stress concentration at the corners on the inner side.

7 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: (a) Square pipe with nonuniform stress field and stress concentration at the corner on the inner side. (b) Elliptical pipe with nonuniform stress field and higher stress levels on the major axis.

8 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Spherical capacitive elements

9 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Circuit diagram for input-output model. Iin is the incoming pulsating flow and Iout is the flow to the resistor. Pch is the line charge pressure and is only present if an accumulator is used. RRP is the resistance of the RO membrane and C is the capacitance of the fluidic capacitive element.

10 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Assembled experimental setup

11 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Flowchart for experimental setup

12 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: (a) Flow at the inlet and after accumulator. Average pressure substracted from presented values. (b) Comparison of % ripple based on prediction experiments. Factor of 2 Fit is the predicted value multiplied by a factor of 2.

13 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Cost comparison of different shapes at varying internal pressure

14 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Cost of ownership of spheres and accumulators over the course of time

15 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Capacitance from a pipe

16 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: Stress generation in a circular pipe under internal pressure

17 Date of download: 11/5/2017 Copyright © ASME. All rights reserved. From: Damping Pressure Pulsations in a Wave-Powered Desalination System J. Energy Resour. Technol. 2014;136(2): doi: / Figure Legend: (a) Triangular cross-section, (b) uniformly loaded beam, and (c) pinned-pinned end-conditions


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