Design and development of potassium formate based atmospheric water harvester

Veeresh Ayyagari, Yunho Hwang and Jungho Kim

Energy, 2021, vol. 221, issue C

Abstract: Potassium formate, the potassium salt of formic acid, is an inexpensive, non-corrosive, non-toxic, and bio-degradable desiccant that has not been considered thus far in atmospheric water harvesting applications.ster is proposed that utilizes an aqueous solution of potassium formate as the medium for moisture absorption during the night when the ambient relative humidity is high, and desorption of absorbed moisture from the desiccant solution during the day using solar energy. A simple prototype was constructed that was able to extract 1.9 L of water∙m−2 of solar area∙day−1 with a moisture uptake of 0.34 kgwater∙kgsalt−1at 25 °C and 79% RH and 0.29 kgwater∙kgsalt−1 at 25 °C and 65% RH.

Keywords: Water scarcity; Liquid-desiccant; Atmospheric water harvester; Potassium formate (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544220328334
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:221:y:2021:i:c:s0360544220328334

DOI: 10.1016/j.energy.2020.119726

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().