Enhancement of Atmospheric Water Harvesting via Salt-Infused Sponges and Peltier Devices †
<p>Illustration of agglomeration processes of calcium chloride salts upon moisture absorption and drying. The clumping reduces the amount of surface area in direct contact with the moist environment.</p> "> Figure 2
<p>(<bold>a</bold>) Sponge types tested. Each container has a respective sponge and control; change in mass was measured every 15 min for 6–7 h. (<bold>b</bold>) Sponge type curves. Graph shows water uptake by various commercial sponges. They were soaked in 5M solutions, dried, and left to absorb. The vertical dotted lines indicate a new trial. The weight changes during the drying phase were not tracked, except for the beginning and final weight.</p> "> Figure 3
<p>Time-lapsed water uptake of cellulose sponge. Solid line represents the curve fit using the double exponential equation (Equation (1)).</p> "> Figure 4
<p>Proposed physical model of the salt-cellulose sponge system. Cellulose sponge with minimal agglomeration.</p> "> Figure 5
<p>Prototype of the Peltier-based clean water generator. (<bold>a</bold>) Side view showing the three water channels to transfer water from the top evaporation to bottom condensation/collection chambers. (<bold>b</bold>) front view. (<bold>c</bold>) View of the Peltier module.</p> ">
Abstract
:1. Introduction
2. Methods
2.1. Sample Preparation
2.2. Moisture Absorption Time Dependence Measurement
3. Results and Discussion
3.1. Preliminary Experiment
3.2. Salt-Cellulose Sponge Water Uptake Time Dependent Measurements
3.3. Proposed Model
3.4. Peltier Device Prototype
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Name | Medium | Water Uptake (%) | Conditions (Temperature, Dewpoint [°C], Water Vapor Pressure [mbar], RH [%]) | Reference |
---|---|---|---|---|
Alg-CaCl2 | Alginate based | 288 | 28, 24.1, 30, 79% | [2] |
AC07 | 39 | 27, 7.9, 10.7, 30% | [6] | |
MIL-101 (Cr) | MOF | 88 | 30, 10.6, 12.8, 30% | [3] |
Cr-soc-MOF-1 | MOF | 200 | 25, 19.1, 22.2, 70% | [4] |
MOF-801 | MOF | 30 | 25, 6,2, 9.5, 30% | [7] |
Co2Cl2 (BTDD) | MOF | 90 | 25, 6,2, 9.5, 30% | [5] |
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Lee, J.; Jobiliong, E.; Bastiaan, T.; Manua, D.J.; Taniara, E.; Steven, E. Enhancement of Atmospheric Water Harvesting via Salt-Infused Sponges and Peltier Devices. Environ. Sci. Proc. 2023, 25, 67. https://doi.org/10.3390/ECWS-7-14177
Lee J, Jobiliong E, Bastiaan T, Manua DJ, Taniara E, Steven E. Enhancement of Atmospheric Water Harvesting via Salt-Infused Sponges and Peltier Devices. Environmental Sciences Proceedings. 2023; 25(1):67. https://doi.org/10.3390/ECWS-7-14177
Chicago/Turabian StyleLee, Jaewoong, Eric Jobiliong, Timothy Bastiaan, Darren Johanes Manua, Ezekhiel Taniara, and Eden Steven. 2023. "Enhancement of Atmospheric Water Harvesting via Salt-Infused Sponges and Peltier Devices" Environmental Sciences Proceedings 25, no. 1: 67. https://doi.org/10.3390/ECWS-7-14177