Results 281 to 290 of about 7,299,202 (356)
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Characterisation and use of energy flexibility in water pumping and storage systems
, 2020Renewable energy integration in power systems and increasing electrification of energy demand create new challenges to which energy flexibility can provide effective solutions.
R. Lopes +5 more
semanticscholar +1 more source
Solar Energy, 1978
Abstract The principles of solar water pumping are briefly described. The mechanical energy needed for pumping water may be produced by thermodynamic, or direct-conversion methods. In thermodynamic conversion a fluid with high internal energy is produced in solar collectors or concentrators. The internal energy of the fluid may be utilized in Rankine-
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Abstract The principles of solar water pumping are briefly described. The mechanical energy needed for pumping water may be produced by thermodynamic, or direct-conversion methods. In thermodynamic conversion a fluid with high internal energy is produced in solar collectors or concentrators. The internal energy of the fluid may be utilized in Rankine-
openaire +1 more source
IEEE transactions on power electronics, 2020
This article deals with a photovoltaic-grid integrated system operating an induction motor (IM) coupled to a water pump. A simple dc-link voltage regulation approach is adopted for the power transfer.
Saurabh Shukla, Bhim Singh
semanticscholar +1 more source
This article deals with a photovoltaic-grid integrated system operating an induction motor (IM) coupled to a water pump. A simple dc-link voltage regulation approach is adopted for the power transfer.
Saurabh Shukla, Bhim Singh
semanticscholar +1 more source
Conransporters as molecular water pumps
2002Molecular water pumps are membrane proteins of the cotransport type in which a flux of water is coupled to substrate fluxes by a mechanism within the protein. Free energy can be exchanged between the fluxes. Accordingly, the flux of water may be relatively independent of the external water chemical potential and can even proceed uphill. In short, water
Zeuthen, Thomas, MacAulay, Nanna
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Cuticular Water Pump in Insects
Nature, 1967AMONG the ways in which terrestrial arthropods can control their environmental water relations, the active retention of water1, the regulation of water loss2, and the active uptake of atmospheric water3 have been found to be concerned with the movement of water through the cuticle.
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Implementation of PMSM Drive for a Solar Water Pumping System
IEEE transactions on industry applications, 2019This paper proposes the design and experimental investigation of fuzzy precompensated hybrid proportional-integral (PI) controller for a permanent magnet synchronous motor (PMSM)-driven standalone solar water pumping system.
Shadab Murshid, Bhim Singh
semanticscholar +1 more source
Review of PV fed water pumping systems using BLDC Motor
, 2020Energy demand is increasing significantly nowadays due to increase in population, industrialization and transportation. The fossil fuel depletion is high with this increase in energy demand.
R. Nisha, K. Sheela
semanticscholar +1 more source
2008
There is good evidence that cotransporters of the symport type behave as molecular water pumps, in which a water flux is coupled to the substrate fluxes. The free energy stored in the substrate gradients is utilized, by a mechanism within the protein, for the transport of water.
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There is good evidence that cotransporters of the symport type behave as molecular water pumps, in which a water flux is coupled to the substrate fluxes. The free energy stored in the substrate gradients is utilized, by a mechanism within the protein, for the transport of water.
openaire +2 more sources
, 2019
This study presents a developed assessment methodology for Photovoltaic-Battery power system featured with utilization of the dumbed power for secondary applications such as water pumping.
B. A. Bhayo +2 more
semanticscholar +1 more source
This study presents a developed assessment methodology for Photovoltaic-Battery power system featured with utilization of the dumbed power for secondary applications such as water pumping.
B. A. Bhayo +2 more
semanticscholar +1 more source
Solar Energy, 1959
Abstract The left-way cyclic process, introduced in the preceding paper, is described for obtaining water out of air. Two working methods are utilized. The first one delivers drinking water out of air without any service, maintenance, etc. The second method requires opening a cover above the absorbent during the evening.
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Abstract The left-way cyclic process, introduced in the preceding paper, is described for obtaining water out of air. Two working methods are utilized. The first one delivers drinking water out of air without any service, maintenance, etc. The second method requires opening a cover above the absorbent during the evening.
openaire +1 more source