Technology data sheet solar water pumping solar water pumping systems are a practical and affordable solution used to solve water shortage problems. They transfer the suns heat, as opposed to generating electricity. Solar pump systems come in many forms for many different applications, but are. Solar thermal panels are a very different technology. Hundreds of solar photovoltaic pumps have been built and operated in countries of asia and the pacific. Positive displacement pumps allow liquid to flow into an open cavity trap the liquid in the pump transport liquid from the suction to discharge port mechanically force liquid out of the pump. Solar panels the type and number of solar panels required are a function of. Water pumping from a pv array is a valid option to pollutiongenerating diesel and humanpowered water pumps. Pdf solar photovoltaic water pumping system for irrigation. Under the average daily solar radiation condition of 7. Surface pumps can draw water from only 2025 ft 78 m below ground level, but they can push it far uphill. Pressure loss can allow contaminants to enter the drinking water distribution system from. Solar water pumping basics sunrotor solar products.
Study of solar pv water pumping system for irrigation of horticulture crops. Feature article solar powered water pumping systems. Replacing gasassisted glycol pumps with electric pumps. Pvarray water pumping can be fulfilled with or without a backup module. Active systems use pumps and controls to regulate the hot wa. Msxseries 1 medium capacity and msxseries 23 highcapacity pumps provide that assurance along with long.
When deployed, the benefits include improved livelihoods increased productivity and. Less common types of solar powered pumps include solar pv powered reciprocating piston nodding donkey pumps and solar thermal pumps or thermosyphones pumps exits but are not figure 4. Solar powered water pumping is one of the most attractive applications for solar energy which is mostly available in the very areas and at the very times when the needs for water are greatest. The most common pumps used in remote communities are. As expected, an increase in power caused an increase in the volume of water pumped. Trade names mentioned are for specific information and do not constitute a guarantee. Inoperable pumps at a drinking water utility can make firefighting difficult and cause local health care facilities and. The most efficient type of dc motor is a permanent magnet motor. Our solar transfer pumps systems can deliver up to 32,000 litres per hour, or pump water up to 150m high vertical lift. Studies have shown that the technology has improved greatly over the past 30 years, with systems becoming more efficient, costeffective and versatile solar powered 2. Andre butler2 abstract this project will consist of a water pumping system to supply potable water to an orphanage located in the chuluchosema community of malawi, africa. Study of solar pv water pumping system for irrigation of. Challenges and risks mainstreaming without piloting. Outline the solar pv market a disruptive technology.
Pdf irrigation is a well established procedure on many farms and is practiced on various levels around the. Surface mount transfer pumps are nonsubmersible pumps for water transfer or pressure boosting. Displacement pumps use diaphragms, vanes or pistons to seal water in a chamber and force it through a discharge outlet. Selecting a solar water pump for any remote application. Evolution of solar pumps the technology of choice a propoor technology. The water will be pumped from a nearby well up to a water tower located in the orphanage center. This is shown in figure 1 for the two alternative suction arrangements.
Methodology a solar powered water pumping system is made up of two main components, 1 solar panels. Designing, modeling, and testing a solar water pump for. Piping shall be type l or type m copper tubing, astm b 88, with 955 tinantimony soldered joints. Solar water pumping systems in order to design and successfully implement solar water pumping systems, you need an understanding of several concepts as well as information specific to how you will use your system. The panels have no moving parts, and have life expectancies of around 30 years. Photovoltaic pv energy production is recognized as an important part of the future energy generation. Introduction to solar water pumping solar water pumping systems are a modern but field proven means of pumping water in locations where access to grid power is not available, or where the grid is not reliable. Solarpowered pumps run on electricity generated by photovoltaic panels or the radiated thermal energy available from collected sunlight as opposed to grid electricity or diesel run water pumps. Vast potential in solarpowered irrigation 4 replacement of conventional pumps with 3hp solar pumps, assuming a 19% utilization rate, would not match current electricity consumption by agriculture consumers.
Photovoltaic panels use solar energy to power a submersible pump. Water is then pumped up into a water storage tank, with gravity then allowing this water to be piped to tap stands or directly into households. A schematic of a typical directcoupled dc solar photovoltaic water pumping system with mppt is shown in fig. Due to rolling blackout and the constantly rising cost of fuel, pumping of water from surface. Water supply source water supply source can be a pond, stream, spring, deep drilled well or a river. The following table gives the expected flow rate that you would obtain for different pipe sizes assuming the pipe or tube is kept at the same level as the connection to the main water pressure supply and. This is generally to protect the pipes from freezing when outside temperatures drop to freezing or below. Ensure the list manager understands how quickly water services can degrade without power and how long it takes to restore water services once power is lost. This would require either an additional 25 million, 3hp solar pumps or replacing the existing fleet with 5. Example of surface solar water pumping system surface pumps are used to move water from sources such as shallow wells, ponds, streams, and tanks, where the pump itself can be located no more than 6 meters above the water level.
Water purification and treatment systems solar pumps are powered by a photovoltaic solar electric panels. But primarily there are four types of solar water pumpssubmersible pumps and surface pumps, direct current dc pumps and alternate current ac pumps. Flowserve msx pumps are expressly designed to handle sewage and wastes of almost every form and description, including both solids in solution and solids in suspension. Most glycol dehydration systems use triethylene glycol teg as the absorbent fluid and rely on pumps to circulate teg through the dehydrator. Solarpowered water pumping is one of the most attractive applications for solar energy which is mostly available in the very areas and at the very times when the needs for water are greatest. Determining the optimum solar water pumping system for. As you can see, solar water pumps are superior in almost every waymaintenance, fuel costs, installation, reliability, and mobility. To file a complaint of discrimination, write to usda, director, office of civil. However, there are very few papers on the following topics with regards to standalone water pumping. Technology overview solar powered water pumps have been in mass production since 1983. These pumps are submersible, and are to be placed in a 6 inch borehole.
Dc pumps are classed as either displacement or centrifugal, and can be either submersible or surface types. Some solar water heaters use pumps to recirculate warm water from storage tanks through collectors and exposed piping. Understanding different types of solar and mounting solutions. Detailed site and resource assessment, including soil type, crop type, water. Improving livelihoods and sustainability 5 solar based solutions can provide reliable, costeffective and environmentally sustainable energy for decentralised irrigation services in a growing number of settings. Introduction and feasibility guide, jan 2007, updated 2011. Water purification and treatment systems solar pumps are powered by a photovoltaic solarelectric panels. Santa fe, nm 87505 usa phone 505 4733800 fax 505 4733830 email. In consequence, most of the dry pumps available on the market need water cooling and have more stages about double than an equivalent oilsealed pump. Ratio of water requirement to solar radiation w r s r from table 5 it was cleared that for a month of may the ratio of water requirement to solar radiations was largest therefore solar radiation of 680 wm2 and water requirement of 17. Determine your daily water requirements for your application using the table below.
Improving livelihoods and sustainability 5 solarbased solutions can provide reliable, costeffective and environmentally sustainable energy for decentralised irrigation services in a growing number of settings. Centrifugal pumps are generally considered for the boreholes with low static heads 8. Design of small photovoltaic pv solarpowered water pump. And though it has a slightly higher upfront cost than some of the other options, the money you will save on a solar water pump system in fuel costs will more than pay for the investment in a relatively short period of time. Solar pv water pumps with pv array capacity in the range of 1 kwp to 2 kwp to be installed on a suitable borewell, open well, water reservoir, water stream, etc. In our hemisphere, a solar collector is mounted on the. A water tank provides a simple, economical means of storage for sunless periods. But primarily there are four types of solar water pumps submersible pumps and surface pumps, direct current dc pumps and alternate current ac pumps.
Centrifugal reciprocating pump there are two basic types of solar powered water pumping systems. Common water pump designs while many pumps can be found on job sites there are two very general types of water pumps in the construction industry. Review different pump types commonly used understand the difference between centrifugal pumps and positive displacement pumps understand the working principle of the tuthill. Most solar pumps operate without the use of storage batteries. Design of small photovoltaic pv solarpowered water pump systems. Centrifugal pumps develop pressure by increasing the velocity of the liquid liquid is literally flung out of the cutwater. Solar water pumping guide 63 pages 4mb pdf file green empowerment. Solar water pumps swp use electricity generated by photovoltaic pv panels to. Low volume pumps use positive displacement volumetric mechanisms which seal water in cavities and force it upward.
High lift solar water pump instructions installation. Ratterman, cohen and garwood, solar pumping systems sps. Santa fe, nm 87505 usa phone 505 4733800 fax 505 4733830. These are low voltage pumps and are also often available in 24 or 12 volt pump format. As the name suggests, a submersible pump is located deep below the ground level and remains submerged under water. Introduction photovoltaic pv panels are often used for agricultural operations, especially in remote areas or where the use of an alternative energy source is desired. Solar water pumps are specially designed to utilize dc electric power from photovoltaic modules. These modules consist of multiple strings of solar cells, wired in series positive to negative, and are mounted in an aluminum frame. Background solar powered water pumps are comprised of three basic components. Designing solar water pumping systems for livestock. To illustrate the differences in output between a fixed tilt system, a manual tilt system.
The various types of commercially available dry pumps are summarised in table 2. Remote water pumps are often designed to run without battery backup, since water pumped out of the ground during daylight hours can be stored in a holding tank for use anytime. Malawi solar powered water pump system hunter king1 dr. Absolute reliability is the most critical requirement for these pumps. Installing a solar water heater can reduce your water heating bill by as much as 50 percent.
Design of small photovoltaic pv solar powered water pump systems technical note no. Submersible pumps are sometimes suitable for either deep or surface water sources. If cold water piping supplying the swh system is of another type, such as pvc, it shall be replaced within 10 feet of the swh system with copper to avoid bulging and rupture due to proximity to the higher temperatures of the solar system. The bos is all the other stuff like cabling and mount. Standalone systems can be designed to run with or without battery backup. The pumps must work during low light conditions, when power is reduced, without stalling or overheating. With no fuel inputs and simple operation, swp are cheaper, cleaner and more reliable than diesel pumps. The operation of solar powered pumps is more economical mainly due to the lower operation and maintenance costs and has less environmental impact than pumps powered by an internal. One popular type of solar thermal heating system uses pipes filled with. Design of photovoltaic water pumping system and compare it with. Solar water pumps swp use electricity generated by photovoltaic pv panels to pump water from bore holes, wells or reservoirs directly onto fields or into a storage tank for gravity based irrigation. Different in design and application they each basically serve the same purpose, which is to move water from point a to point b.
Engineering manual neh 210 on hydraulics and irrigation engineering. Waterunderoffgridand decentralisedsolarapplications. There are also papers on modeling and field testing of solar pumps in different locations in the world 3, 4, 5. A solar powered water pumping system is made up of. At night, or in heavy cloud conditions, electrical production and pumping ceases economics of solar water pumping the economy and reliability of solar electric power make it an excellent choice for remote. Types of solar water pumps the various types of current con. Wait a few years for solar pumps for ponds, i suggest. Pv pumps, is much easier than the other types because they can be transported in pieces and reassembled on site khatib, 2010. Table 2 various types of dry pumps type of pump compression per stage speed m3h. Solar photovoltaics, water pumping s ystem, irrigation, photovoltaic pv pumping system.
Insert main title of the frequently asked questions on. The total static head therefore depends on the site conditions between the suction and delivery. Our wells tend to be between 100 and 200 feet deep with a static. Replacing gasassisted glycol pumps with electric pumps executive summary approximately 36,000 glycol dehydrators in the natural gas production sector are used to remove water from the gas. Heating water for bathing, dishwashing, and clothes washing is the second largest home energy cost.