scholarly journals PATs Behavior in Pressurized Irrigation Hydrants towards Sustainability

Water ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1359
Author(s):  
Modesto Pérez-Sánchez ◽  
João F.P. Fernandes ◽  
P.J. Costa Branco ◽  
P. Amparo López-Jiménez ◽  
Helena M. Ramos
Keyword(s):  
Sustainable Development Goals ◽  
Electrical Circuit ◽  
Resistive Load ◽  
Water Network ◽  
The Sustainable Development ◽  
Real Behavior ◽  
Pressurized Irrigation ◽  
Development Goals ◽  
Reduction Of Energy Consumption ◽  
Flow Head

Sustainability and efficiency in irrigation are essential in the management of the water–energy–food nexus to reach the Sustainable Development Goals in 2030. In irrigation systems, the reduction of energy consumption is required to improve the system efficiency and consequently the sustainability indicators of the water network. The use of pumps working as turbines (PATs) has been a feasible solution to recover the excess of energy where pressure reduction valves are installed. This research demonstrates the use of PATs under steady and unsteady conditions by analyzing the application in a real irrigation networks located in Vallada (Valencia, Spain). The study shows the possibility of recovering 44 MWh/year using PATs installed upstream of the irrigation hydrants. The real behavior of the PAT operation in a stand-alone recovery energy solution allowed analysis of the flow, head and efficiency variation as a function of the rotational speed, as well as the minimum capacitance to self-excite the generator and the resistive load of the electrical circuit. The PAT limit is examined in terms of the overpressure induced by a fast closure manoeuvre of hydrants, and the runaway conditions due to the disconnection from the electrical load.

scholarly journals Methodological Proposal for the Identification of an Interregional Project Portfolio for the Economic Development and the Exploitation of Riverine Vocation of Colombia

2018 ◽  
Vol 12 (23) ◽  
pp. 63
Author(s):  
Henry Murcia Fernandez ◽  
Adriana Salgado Martínez ◽  
Carlos Gil De Los Ríos ◽  
Jimmy Saravia Arenas ◽  
Milena Ortega Buelvas
Keyword(s):  
Sustainable Development ◽  
Sustainable Development Goals ◽  
National Development ◽  
Social Aspects ◽  
Project Portfolio ◽  
Water Network ◽  
The Sustainable Development ◽  
2030 Agenda ◽  
Starting Point ◽  
Development Goals

The Colombian riverine system is composed by a 27.725km water network distributed in the four major basins (Magdalena, Amazonas, Atrato, Orinoco) along the country. 73.1% of the system can be considered as waterways. However instead of leveraging the potential for the exploitation of this natural resource and the promotion of a riverine transportation system which can impact neighboring populations in social aspects such as health and education, in Colombia the priority is focused to road transportations systems. The National Government, which has adopted the challenges for the sustainability of the planet, has accepted the Sustainable Development Goals (SDG) promulgated by the UN and at the same time has linked the iniciative to its 2014 – 2018 National Development Plan. The possibility of connecting the promotion of its riverine vocation and capabilities for solving known socioeconomic needs motivate the creation of this methodological proposal that is driven by the identification of an interregional project portfolio that can be the starting point for closing the diagnosed gaps. At the same time it also makes the accomplish. Went of the goals established by the 2030 Agenda for Sustainable Development, defined by United Nations, feasible.

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