Progress in evaporation mitigation research

Schmidt, E. and Brink, G. and Coop, P. and Hancock, N. and Pittaway, P. and Stuckey, N. and Wigginton, D. (2011) Progress in evaporation mitigation research. In: Irrigation 2011: New Horizons, Fresh Ideas Regional Conference and Exhibition, 22-25 Aug 2011, Launceston, Australia.

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Abstract

Annual evaporation losses from irrigation storage dams and channels are significant and are estimated to be between 1.32GL/yr and 2.88GL/yr from the 2,000,000 farm dams across Australia. Nationally, consideration is currently being given to investment in evaporation mitigation technologies. Floating and suspended covers are proven but involve high capital cost: in contrast, monomolecular chemical films (monolayers) offer potentially cost-effective evaporation mitigation but are as yet unproven. Five years of research funded by the CRC Irrigation Futures and others has enabled significant progress in evaporation mitigation research, and in particular the future use of monolayers. In this paper, developments are reported in six areas: the development of standardised methods for evaporation and seepage monitoring in storages, including Internet-based calculation tools; fundamental understanding of the reasons for seemingly highly-variable performance of monolayers; and from this the formulation of a Universal Design Framework for both (i) monolayer economic feasibility assessment, material selection and application design optimisation for a given storage, and (ii) for the optimal real-time management of monolayer deployment on an hour-by-hour basis; fundamental understanding of interactions between artificial monolayers, natural water-surface microlayers and water quality; the non-laboratory evaluation of alternative monolayer materials; the engineering of monolayer application, monitoring and control systems, including patented prototype designs; and the development of on-storage evaporation reduction measurement systems for monolayer detection.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Deposited with blanket permission of Irrigation Australia Ltd. Only abstract published, as provided here.
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 18 Jun 2012 05:20
Last Modified: 03 Jul 2013 01:12
Uncontrolled Keywords: evaporation; seepage; evaporation mitigation; monolayer
Fields of Research (FOR2008): 14 Economics > 1402 Applied Economics > 140201 Agricultural Economics
07 Agricultural and Veterinary Sciences > 0799 Other Agricultural and Veterinary Sciences > 079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.)
09 Engineering > 0905 Civil Engineering > 090509 Water Resources Engineering
Socio-Economic Objective (SEO2008): D Environment > 96 Environment > 9609 Land and Water Management > 960905 Farmland, Arable Cropland and Permanent Cropland Water Management
URI: http://eprints.usq.edu.au/id/eprint/21350

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