Saturday, May 16, 2015

Difference between Solar #waterpumping system and Tradition #waterSystem.

by Surya Prakash Singh

The solar water pumping system uses solar energy to pump water.

• Solar PV panel
• One of the following motor-pump sets compatible with the photovoltaic array:
• surface mounted centrifugal pump set,
• submersible pump set,
• floating pump set,
• Submersible pump set,
• Any other type of motor-pump set, after approval from MNRE.
• Pipes

Working of a solar water pumping system

The system operates on power generated using solar PV (Solar Photo Voltaic Module) system. The photovoltaic array converts the solar energy into electricity, which is used for running the motor pump set. The pumping system draws water from the open well, bore well, stream, pond, canal etc.
The system requires a shadow-free area for installation of the Solar Panel.

A system with 1800 watt PV array capacity and 2 HP pump can give a water discharge of 1.4 lakh liters per day from a depth of 6 to 7 meters. This quantity of water is considered adequate for irrigating about 5-8 acres of land holding for several crops.
Approximate Cost
Total cost of the system - Rs. 2,90,000/-
GOI subsidy through MNRE - Rs. 1,80,000/-

• No fuel cost - as it uses available free sun light
• No electricity required
• Long operating life
• Highly reliable and durable
• Easy to operate and maintain
• Eco-friendly

Traditionally the water pumping technology of choice has been the wind pump. Wind pumps provide long lasting solutions with a basic technology which is well understood and can be maintained locally. However even wind pumps have become expensive to install and to replace.

Solar water pumps and dc pumps are currently being used to irrigate crops, water livestock, and provide potable drinking water. Solar water pump uses peak solar array output which frequently coincides with high water demand during long, dry summer days. In the event of cloudy weather solar water pump systems often use storage tanks to store excess water. Unlike generator powered water pumping systems, solar water pumps do not require fuel or constant maintenance. Solar water pumps can also be designed for portability to be moved as water demand or change of seasons requires. Solar water pumps cost less to operate, offer modular capability to be quickly expanded as demand increases, unlike a generator or windmill water pumps.

Diesel water pumping is attractive due to the large power range of the pumps and the availability of water when it is needed. It can pump water for varying daily demands through longer operating periods (assuming sufficient borehole strength), thus allowing for the flexibility required in some applications. The technology is well understood and service for diesel engines is readily available. Recent fuel price increases and generally intensive maintenance schedules however can make diesel water pumps a costly pumping option.
Solar water pumps are often thought of as being an expensive technology, which is not able to pump enough water and which is not durable.
However, solar water pumps have come a long way in 25 years and today there are solar pumps on the market which have improved on previous technology.

1: Submersible pumps which can pump up to 200m heads;
2: Pumps that are able to pump larger volumes of water, e.g.:
At 100m, about 10,000 liters per day;
At 50m, about 20,000 liters per day;
Above performance can be doubled through dual systems (if the borehole allows his).
3: Low maintenance requirements (3 to 5 years).
4: Good performance which means fewer solar panels to pump the same amount of Water.
5: Some of the pump models can be backed-up by a genset to pump additional water with the same pump during the night or during overcast days;
6: Good quality and reliability.
7: Simple to install: Furthermore, solar pumps are well known for having the following features:
8: Require minimal attention as they are self-starting;
9: Solar pumps are “good” for boreholes as they pump over the whole day;
10: Weak boreholes can be used effectively with a low volume pump due to pumping 8 to
10 hours a day;
11: In most cases, a solar pump offers an ideal solution to the diesel option which requires operating funds (with uncertainty about future diesel prices), time investment for operating pump (manual starting etc) and logistics for fuel, maintenance, installation and de-installation;
12: Tracking arrays can be used to increase daily water pumping rates;
13: Solar pumps offer clean solutions with no danger of borehole contamination.
Theft of solar photovoltaic panels is a problem and one needs to look at counter measures if there is a risk of theft. Refer to web links below for more information.

Cost of solar and diesel pumps:

A cost comparison was conducted for solar and diesel water pumps over a range of pumping heads (10 to 200m) and a range of daily flow rates (3 to 50m3/day). The all-inclusive costs were calculated taking into account.
The initial upfront cost, the operating costs (diesel fuel for the operating life), maintenance costs, and replacement costs (diesel engine, solar submersible pump unit etc).Calculating the all-inclusive cost is a fair way of comparing solar pumps (usually higher upfront cost) with a diesel pump (usually lower upfront cost, but with ongoing diesel and intensive maintenance costs). The all-inclusive cost takes a long term approach and is calculated over a twenty year period, which is also the minimum life expectancy of a solar panel. The cost comparisons show that diesel pumps are on average two to four times more expensive over a 20 year period than solar pumps for pumping the same average amount of water per day! Refer to costing approach in final report for more detailed information.

Prakash Singh is the author of Difference between Solar water pumping system and Tradition water System.Solar Lanterns,Solar Water Pumping System,Reading Lamp.

Article Source: Difference between Solar water pumping system and Tradition water System.

Sunday, May 10, 2015

Deep #WellWater

By Jam Leynes
A deep well is a simple device that uses the vacuum pump principle in order to extract water from the ground. One of our great innovations that helped us survived. A manual water pump converts human energy into mechanical energy in order to pump out liquid through a series of poles or tubes inserted in the ground tapping to the water reservoir underneath. A hand pump is widely used in every country mostly for irrigation.
A deep well sometimes called a hand pump is pretty popular in the Philippines especially in the rural areas. It is used to pump out water below 15 meters from the ground. There are far places where the only means of getting water is by using deep wells. Water generated from the deep well is not yet safe to drink. People use different types of filtration. Some use make shift filters from stone, sand, coal and some uses advance water filter with different stages. This helps filter the water from debris, mud, and rust. Boiling the water is the most effective way on killing the bacteria, and makes the water safe to drink.
The water coming from the deep well pump is used for cooking, drinking, washing clothes, washing the dishes, house cleaning, taking a bath. Rice farms that are far from the river and is hard to irrigate uses deep well and water pump. Some uses vacuum pump filter with compressed air filter incorporated on it. There are groups of people who check and maintain this deep well pump and they are supported by different non profit and non governmental group organization.
Jam Leynes invites you to learn more about compressed air filter from Fluitek a world leader in providing high quality filter.
For 25 years, Fluitek has helped customers with their every filtration need. From occasional small-item shopper to supplying large factory floors, we've covered most ground over the years to learn exactly what our customers need.
Article Source:

Sunday, May 3, 2015

Looking For the Best Water Purifier For #WellWater?

by Lauren Leddy

If you are looking for the best water purifier for well water, maybe I can help you figure out which filter system is going to work best for you.

There are quite a few companies out there peddling less than adequate appliances for keeping your drinking water clean, and I wouldn't want to see you get stuck with one of them. Let's take a look at what it is that you need.

Most people that live in an area where there is no mainline service seem to feel as though their water is far safer to drink than that being supplied to people by the water treatment facilities. Our public reservoir systems are filled with toxic and carcinogenic chemical agents, pharmaceuticals and prescription drugs, disinfectant resistant microbes, and toxic heavy metals. It is highly likely that the water coming out of your well is in much better condition than what the mainline customers are receiving.

Although you may think that your drinking water is safe due to the fact that it only feeds your property, and you don't spread chemical fertilizer, herbicides, or pesticides, you may be wrong in your assumption. You will want the best water purifier for well water installed in your home, because what is going on in other places can have a dramatic effect on the groundwater where you live.

Improper waste disposal, faulty septic tanks, and pesticides and fertilizer spread by others can possibly taint your drinking water. Contaminants can travel for miles through the groundwater system, and evidence has shown that contamination from one area can show up years later at a source far removed from the original site. This is why you need to take precautions.

Studies have estimated that 50% of all waterborne diseases treated each year can be attributed to drinking water that has been contaminated by faulty septic systems. In order to prevent your family from developing some form of waterborne disease, the best water purifier for well water provides you with sub micron filtration. This removes 99.99% of the harmful bacteria from your water.

The best water purifier for well water will also feature an activated granular carbon filter for the removal of chemical matter, and ion exchange for preventing toxic metals from making your family ill. It is better to be safe than sorry when it comes to pollutants in your water. Even if you think your water is safe, you want to ensure that you are protected just in case.