English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Rope-pumps are a highly successful method of lifting water by hand in developing countries. The primary aim of this work was to develop a validated methodology to decide the most cost effective renewable power sources in order to fully automate the operation of the rope-pump for given well depth, volume of water required and environmental conditions in the proposed installation location. The renewable energy sources considered were a 150W photovoltaic (PV) panel and a 100W wind turbine, either used in isolation or in combination with a battery and motor, or direct drive to a motor, providing five viable systems for further consideration. All system elements and the rope-pump itself were fully characterised through experimental testing. Computer-based simulations incorporating environmental conditions for Lilognwe, Malawi, were used to provide a 15 year lifecycle analysis. Results show that the use of PV powered system can deliver water reliably, at the lowest cost. For validation purposes, each rope-pump system was also analysed with the environmental conditions found in Bristol, UK providing comparison results, indicating the approach is systematic and rigorous enough to provide an effective decision making tool for the installation of rope-pumps anywhere, provided environmental data is available.

Rope-Pump System Modelling using Renewable Power Combinations