Solar Energy Groundwater Pumping: A Sustainable solution to Energy Squeeze in Smallholders’Irrigation in India

2017 ◽  
Vol 4 (04) ◽  
Author(s):  
ATIQUR RAHMAN ◽  
B. P. BHATT

India′s smallholder agriculture boomed with supplemental irrigation made possible by diesel and electric pumps.Nevertheless, the smallholders’ irrigation is under siege from an energy squeeze with deteriorating farm power supplyandmanifold increase in diesel prices. This energy squeeze undermines the adoption of broad range precision irrigation technologies and profitable productivity of small holdings.However, the use of solar energyparticularlyin groundwaterpumping anduse of pressured irrigationcould improve energy access, reduce fossil fuels consumptions, asaverage incident solar radiationover India’sgeographical areais of 4-7 kWh/m2/ day with 250-300 clear sunshine days/year. To promote solar energyuse under the prevailing solar radiation conditions and depth to water level scenario of groundwater a suitablegroundwater pumping system model is required to fulfil the irrigation needs. This paper describes a solar photovoltaic groundwater pumping model suitable for small farmirrigation ether by traditional methods of irrigations orby pressuredmethod, as it generates pressure headsof98 -147kPa whenincident solar radiation ranged from400- 800W/m2, the solar radiation condition which prevailsover its geographical area between 9.00-14.00 hrsround the year.

Author(s):  
Krishna Muniyoor

Rajasthan, the largest state in India, occupies 10.5 per cent of the total geographical area of the country, although about two-thirds of its area is arid. The state has a predominantly agrarian economy, and agriculture is the mainstay of about two-thirds of the workforce. Interestingly, only 28 per cent of the net cultivable area in the state is irrigated, compared to the national average of 49.8 per cent. With the aim to improve irrigation facilities and increase agricultural productivity, the state government implemented the solar photovoltaic water pumping system (SPVWPS) in 2008-09 as an appropriate alternative to grid-connected water pumping. The aim of this paper is to assess the costs and benefits of adopting the SPVWPS using data from a field survey of 126 households. The findings show that use of the SPVWPS offers substantial benefits to adopters in the long run. In addition, government subsidy plays a major role in determining the payback period of adopters' investment in the scheme. The paper suggests that, alongside timely implementation of the scheme, the government should facilitate domestic manufacturing of solar cells and panels to fully harness social benefits of the SPVWPS.


Analytical study of solar photovoltaic water pumping system can be performed on the basis of technical, economical and environmental phenomenon. Use of solar energy to generate off grid electric power has been enhanced in these days and it is continuously increasing day to day due to the active interest of government and people. Numbers of applications are available in the solar energy field and amongst its various applications solar photovoltaic water pumping system is best utilized for agriculture and community water supply. It has increased agriculture productivity due to the power availability when needed for irrigation. This technology has improved the living standard of farmers and villagers who have not proper electrical supply as per their requirement for water pumping. This technology is helping to complete the mission of government and helps farmers to get water pumping system without any need of grid connection. The use of fossil fuels was common earlier for the pumping system and mostly diesel generator based systems are used which causes emission of CO2 and other harmful gases. Fossil fuels increase pollution and causes global warming, health problems and many more while solar energy based applications are helping to reduce CO2 emission and making a step toward green environment. This manuscript presents study of technical and economic analysis of solar water pumping system useful for various water supply applications especially in agriculture sector.


2015 ◽  
Vol 2015 ◽  
pp. 1-8
Author(s):  
Bülent Yılmaz

The specific case of scattering of a plane wave by a two-layered penetrable eccentric circular cylinder has been considered and it is about the validity of the on surface radiation condition method and its applications to the scattering of a plane wave by a two-layered penetrable eccentric circular cylinder. The transformation of the problem of scattering by the eccentric circular cylinder to the problem of scattering by the concentric circular cylinder by using higher order radiation conditions, is observed. Numerical results presented the magnitude of the far field.


2016 ◽  
Vol 99 (3) ◽  
pp. 839-846 ◽  
Author(s):  
Abdelhakim Belkaid ◽  
Ilhami Colak ◽  
Korhan Kayisli

2018 ◽  
Vol 240 ◽  
pp. 04004 ◽  
Author(s):  
Marek Jaszczur ◽  
Qusay Hassan ◽  
Janusz Teneta ◽  
Ewelina Majewska ◽  
Marcin Zych

The operating temperature of the photovoltaic module is an important issue because it is directly linked with system efficiency. The objective of this work is to evaluate temperature distribution in the photovoltaic module under different environmental conditions. The results shown that photovoltaic module operating temperature depends not only on the ambient temperature or solar radiation dependent but also depends on wind speed and wind direction. It is presented that the mounting conditions which are not taken into consideration by most of the literature models also play a significant role in heat transfer. Depends on mounting type an increase in module operating temperature in the range 10-15oC was observed which cause further PV system efficiency decrease of about 3.8-6.5 %.


Author(s):  
Santosh S. Raghuwanshi ◽  
Vikas Khare

<p>Solar photovoltaic systems convert energy of light directly into electrical<br />energy. This work presents, a process to compute the required size of the<br />stand-alone solar photovoltaic generator based water pumping system<br />for an existing area. In addition solar photovoltaic generator is<br />connecting voltage source inverter fed vector controlled induction<br />motor-pump system. Perturb and observe are used for harvesting<br />maximum power of PV generator in between buck-boost DC converter<br />and inverter system. In this paper system result is validated by fuzzy<br />logic system and compare with variable frequency drives based PI<br />controllers, driving motor-pump system. The operational performance<br />at 60 m head, VFD based controllers in terms overshoot and setting time<br />and also analysis performance of motor-pump set under different<br />weather conditions. By assessment of system we find that speed and<br />torque variation, overshoot and settling time is more with PI controller,<br />Fuzzy logic controller (FLC) performance have dominance to VFD<br />based PI controller.</p>


Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6676
Author(s):  
Muhammad Saydal Khan ◽  
Ali Tahir ◽  
Imtiaz Alam ◽  
Sohail Razzaq ◽  
Muhammad Usman ◽  
...  

This paper investigates the impact of tube wells on the discharge and water table of the Quetta Valley aquifer and conducts a financial analysis of the solar photovoltaic water pumping system (SPVWP) in comparison with a typical pumping system for the Water and Sanitation Agency of Quetta’s (WASA) tube wells. Quetta Valley is dependent on groundwater as surface resources are on decline and unpredictable. The population of this city has exponentially increased from 0.26 million in 1975 to 2.2 million in 2017 which has put a lot of pressure on the groundwater aquifer by installing more than 500 large capacity tube wells by WASA and Public Health Engineering (PHE) departments in addition to thousands of low-capacity private tube wells. The unprecedented running of these wells has resulted in drying of the historical Karez system, agricultural activities, and the sharp increase in power tariffs. There are 423 tube wells in operation installed by WASA in addition to PHE, Irrigation and Military Engineering Services (MES), which covers 60% of the city’s water demand. The results will be beneficial for organizations and positively impact the operation of these wells to meet public water demand. For the two zones, i.e., Zarghoon and Chiltan in Quetta Valley, recommendations are given for improved water management.


Author(s):  
V Mounika and Tejavath Suhasini

This Paper Presents Novel DC-DC Converter Based Closed Loop Control of BLDC Motor for SPV fed Water Pumping System Solar Photovoltaic (SPV) Array fed Water pumping System Utilizing Buck-boost DC-DC Converter in order to extract the maximum available power from Solar system. Solar energy has the greatest availability compared to other energy sources. For such solar PV systems, maximum power point tracking control is preferred for efficient operation. This concept is dealing with INC method which is one of the MPPT methods. This study deals with a buck–boost converter controlled solar photovoltaic (SPV) array fed water pumping in order to achieve the maximum efficiency of an SPV array and the soft starting of a permanent magnet brushless DC (BLDC) motor. The current sensors normally used for speed control of BLDC motor are completely eliminated. The speed of BLDC motor is controlled through the variable DC-link voltage of a voltage-source inverter (VSI). The VSI is operated by fundamental frequency switching, avoiding the losses due to high-frequency switching, in order to enhance the efficiency of the proposed system.


2019 ◽  
Author(s):  
Wandifa Saidyleigh ◽  
A. I. Olcer ◽  
R Baumler

The increase in world seaborne trade over the past decade due to global economic and population expansion has resulted in a corresponding increase of world shipping fleet with even greater size and power requirements. The bulk of these ships use cheap and widely available fossil fuels, mainly oil for operation but which has deleterious effects on the environment. In order to address environmental concerns in the shipping sector, the International Maritime Organization (IMO), responding to the global call to reduce greenhouse gases emissions from international shipping adopted technical and operational measures. These are to ensure efficient energy management on ships and have led to the application of many innovative technologies including the use of renewable energies and alternative fuels on ships to minimize fossil fuel consumption and reduce emissions. However, in order to achieve a substantial emissions reduction in international shipping, the potential applicability of a technology which utilizes a universal renewable energy resource on the largest ship type in international shipping fleet should be investigated. This research focuses on investigating the potential of Solar Photovoltaic technology on dry bulk carriers using a developed methodology and Levelised cost of energy concept as the basis for comparison. The results of this research can be used to guide decision makers about the potentials of Solar Photovoltaic technology on dry bulk carriers in general whilst its developed methodology may be useful in the specific context for determining which ships and under what circumstances solar PV is an option.


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