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Techno-economic feasibility of the irrigation system for the grassland and farmland conservation in China: Photovoltaic vs. wind power water pumping
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
Malardalen Univ.
2015 (English)In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 103, 311-320 p.Article in journal (Refereed) Published
Abstract [en]

Photovoltaic water pumping (PVWP) and wind power water pumping (WPWP) systems for irrigation represent innovative solutions for the restoration of degraded grassland and the conservation of farmland in remote areas of China. The present work systematically compares the technical and economic suitability of such systems, providing a general approach for the design and selection of the suitable technology for irrigation purposes. The model calculates the PVWP and WPWP systems sizes based on irrigation water requirement (IWR), solar irradiation and wind speed. Based on the lowest PVWP and WPWP systems components costs, WPWP systems can compete with PVWP systems only at high wind speed and low solar irradiation values. Nevertheless, taking into account the average specific costs both for PVWP and WPWP systems, it can be concluded that the most cost-effective solution for irrigation is site specific. According to the dynamic simulations, it has also been found that the PVWP systems present better performances in terms of matching between IWR and water supply compared to the WPWP systems. The mismatch between IWR and pumped water resulted in a reduction of crop yield. Therefore, the dynamic simulations of the crop yield are essential for economic assessment and technology selection. (C) 2015 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2015. Vol. 103, 311-320 p.
Keyword [en]
Photovoltaic, Wind, Water pumping, Irrigation, Crop yield, Simulation
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-173410DOI: 10.1016/j.enconman.2015.06.034ISI: 000359873300032ScopusID: 2-s2.0-84935445930OAI: diva2:853704
Sida - Swedish International Development Cooperation Agency

QC 20150914

Available from: 2015-09-14 Created: 2015-09-11 Last updated: 2015-09-14Bibliographically approved

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