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Development of a 'Smart' Monolayer Application System for Reducing Evaporation from Farm Dams - Introductory Paper

Agricultural Technologies In a Changing Climate: The 2009 CIGR International Symposium of the Australian Society for Engineering in Agriculture

Abstract: Chemical monolayer films are potentially an economical low-impact means of reducing evaporative loss from farm water storages. However, their performance can be highly variable as they are affected by climatic and environmental factors: principally wind, wave action and bio-degradation. These limitations must be accommodated for in the management of the applied monolayer by means of appropriate and timely autonomous application and re-application. Although a number of autonomous application systems for monolayer already exist, none has proved overly successful. It is argued that whilst this is in part due to sub-optimal performance of monolayer materials, it is also due in large measure to inaccuracies and/or inappropriate design in both application systems and particularly application strategies which are not adaptive to the prevailing environmental conditions. Therefore, a control system is being developed to adaptively and spatially vary monolayer application rates according to changing conditions monitored on-site. This will form part of an autonomous electromechanical system for the optimal application and spreading of chemical monolayer. This paper reports progress towards this objective; firstly by evaluation of the design requirements for automated systems at a range of spatial scales; and secondly via the construction of a first 'pre-prototype' to act as an evaluation platform and concept demonstrator.

To cite this article: Brink, GN; Symes, TW and Hancock, NH. Development of a 'Smart' Monolayer Application System for Reducing Evaporation from Farm Dams - Introductory Paper [online]. In: Agricultural Technologies In a Changing Climate: The 2009 CIGR International Symposium of the Australian Society for Engineering in Agriculture. Brisbane, Queensland: Engineers Australia, 2009: [512]-[520]. Availability: <http://search.informit.com.au/documentSummary;dn=645968829193298;res=IELENG> ISBN: 9780858259096. [cited 01 Oct 16].

Personal Author: Brink, GN; Symes, TW; Hancock, NH; Source: In: Agricultural Technologies In a Changing Climate: The 2009 CIGR International Symposium of the Australian Society for Engineering in Agriculture. Brisbane, Queensland: Engineers Australia, 2009: [512]-[520]. Document Type: Conference Paper, Research ISBN: 9780858259096 Subject: Monomolecular films; Reservoirs--Evaporation control; Prototypes, Engineering; Water-supply, Agricultural--Management; Electromechanical devices; Affiliation: (1) Faculty of Engineering and Surveying, National Centre for Engineering in Agriculture, and CRC for Irrigation Futures, University of Southern Queensland, Toowoomba. QLD 4350
(2) National Centre for Engineering in Agriculture, and CRC for Irrigation Futures, University of Southern Queensland, Toowoomba. QLD 4350
(3) Faculty of Engineering and Surveying, National Centre for Engineering in Agriculture, and CRC for Irrigation Futures, University of Southern Queensland, Toowoomba. QLD 4350

Database: Engineering Collection