Saturday, April 20, 2013

Pakistan science club launches news science videos tutorials online website

Pakistan science club launches news science videos tutorials online website

Videos content viewer increasing day by day they like to watch videos related to interest instead of reading article or stories. Video of any topic is more interesting to watch than reading of articles. PSC also have science and technology video category but all videos host on YouTube and YouTube not running in Pakistan so mostly video can not play for Pakistani visitors. PSC launches new sub domain (http://science-videos.paksc.org) of science videos portal all videos can watch in Pakistan. 

Some videos are:

 
Photo Synthesis


Photo Synthesis Photosynthesis is a process used by plants and other auto tropic organisms to convert light energy, normally from the sun, into chemical energy which is used in produce in carbohydrates, water and oxygen have produce in by product

static electricity in Human


static electricity in Human in this experiment show how static electricity in Humans body can charge.

paper chromatography video


paper chromatography video separation of plants pigments Paper chromatography is an analytical method technique for separating and identifying mixtures that are or can be coloured,especially pigments. This can also be used in secondary or primary colours ...

DIY inverter UPS Transformer

Thursday, April 11, 2013

How Does a work Horizontal Axis Wind Turbines (HAWT)

How Does a work Horizontal Axis Wind Turbines (HAWT)

Wind turbines extract conduct energy from wind and transform into electricity in this video, we will learn working principle of horizontal axis wind turbine which is the most commonly used one. When with high energy passes over specially shaped wind turbine blades it produce a lift force try gentle component of lift force will make the blade rotate the slow-speed rotation will be transformed to high speed with help of gear mechanism inside and generator in the cell will transform mechanical energy obtained to electrical energy. Direction of one can change anytime so its own mechanism on m in turbine makes sure that in is always in direction of wind. Visual showing maximum power extraction most often wind speed will have dramatic fluctuation with time. Power produced by wind turbine is highly sensible to wind speed so unless if you don't have a suitable mechanism power produced will be highly fluctuating. In practice wind turbines starts only when there is a minimum speed to win called cut in speed wind-win speed is between cutting speed and the rated speed they will be much Empowered production after reading speed power production has maintained a constant level achieved by adjusting pitch of the blades with help of a controller. higher wind speed may be fatal for wind turbines so after a cut out limit power production is turned off in affect power produced by wind turbine will very like the This wind speed such a profile would give much smoother power production. we will see what is the maximum performance a wind turbine can using a simplified one dimensional analysis since the turbine is extracting some energy an outlet when will have lesser kinetic energy compared to in sunlit exit when the velocity will be lower compared to in will follow a trend like this from inlet to exit mass flow rate passing through believe swept area is given as when the velocity of blame times density into area when the velocity through blade can be approximated s average of him leading to exit velocities since velocity at inlet is higher than outlet the same nice will flow through unleavened outlet through a smaller and bigger area fluid passing through swept area will follow if low volume like this power extracted by the wind turbine is same as decrease in Connecticut urging from inlets wildlife so winter buying can extract maximum energy when product of these two terms are maximum power extracted will very likely this with ratio of exit to inlet velocity and we'll have a maximum value n exit velocity is one by a third of unlevel law city power input to wind turbine is inlet kinetic energy of wind passing through same swept area which can be modified in terms of the law city efficiency of winter minus ratio of power extracted to power input so we can show that a wind turbine can convert up to fifty nine point to six percent when kinetic energy to work this is no was billet’s limit this is an idealistic case possible only when wind turbine is rotating it high rpm and having infinite number of blades a real turbine will have much slower performance will learn about factors which affect wind turbine design the next video

Thursday, March 7, 2013

European Union imports of fish from Pakistan to ban took last 6 years

European Union imports of fish from Pakistan to ban took last 6 years, after which Europe once again enjoy the taste of the fish and its products can. Pakistan Sea Food Exporters Association Chairman Iftikhar Zaidi last media interview during the European Union, the Pakistan sea food imports for the 12 March 2013 by User European countries will be notified, so that they Pakistan imports its products directly and start to fish. The recent decision of the European Union, after the initial 2 The company exports to European countries will be able to fish, but a month later 4 more European Union countries, companies and the fish will be able to export this product. Economic experts say the 6-year ban imposed by the EU fish imports from Pakistan from 3 to 5 million dollars a year is likely to increase. The European Union banned the 11 registered exporters European countries annually 5 million more than the value of fish exported from Pakistan used. Year 2007, the European Union, the fish handling procedures and facilities falls Forgive as the marine food imports banned was, however, the ban despite Pakistan's sea food exports not stop that, while the previous year 2012 also from Pakistan seafood exports 6 percent to 5 thousand 32 tons of records were. seafood exports from Pakistan This is the first time the $ 21 million level reached 50 million. Experts say the food products for the China, Egypt, Middle East and Far East markets such as the European Union after removing the effects of the ban were, however, re-access to the EU market their products exports will soon be taken up a billion dollars. The European Union is expected this year from March 12 until the ban on seafood imports will be totally abolished. Marine food product exports from Pakistan during the last few years there has been a rising trend during the financial year 12.2011 69 million worth of 28 billion were exported food products. According to the Federal Statistical Institute reported 13 billion during FY 32 Rs 08.2007, 09.2008 during year 18 billion, 46 billion, 19 billion 4 million in 10.2009, 11.2010 during 25 billion 31 million, During the 12.2011 yet 28 billion worth Rs 69 crore have been exported to many food products. economic experts of the European Union market with the launch azsrnu seafood exports from Pakistan to $ 21 million, a billion dollars will be reached

Photo of Fixed dome biogas plant in Punjab

Photo of Fixed dome biogas plant in Punjab


Photo of Fixed dome biogas plant in Punjab

download Photo of Fixed dome biogas plant in Punjab large size 

Friday, January 18, 2013

Biogas Plant Design

Biogas Plant Design

Pakistan science club's web-portal category about biogas plant design posts different articles, video tutorial and column about biogas plant or gobar gas plant (anaerobic digester) and more post will publish soon

The post on this category are following.

  • Biogas Plant (Anaerobic Digester) Construction and Gobar gas Production
  • Story about biogas plant in flood hazard area of Pakistan By Sonia Malik
  • VACVINA biogas Plant information and Construction Video
  • Foreign renewable energy expert says: Pakistan can make more than 2000 megawatts energy from biological waste
  • Biogas Plant Photos from PDBP
  • Construction of Portable Biogas Digester
  • Building of Biogas Plant by Recycled Plastic Drum


biogas plant design

Friday, January 11, 2013

fixed dome Biogas Plant 's inlet photo

fixed dome Biogas Plant 's inlet photo
fixed dome Biogas Plant 's inlet photo

fixed dome Biogas Plant 's inlet photo take by abdul in this picture animal dung showing. inlet of biogas plant consist of iron made mixture which can mix water and dung (gobar) inlet of fixed biogas plant made up of concrete and inlet pipe opens in to digester tank
 

Saturday, December 1, 2012

The compact biogas plant

The compact biogas plant



Note
Biogas or Gobar Gas Plant is design by Appropriate rural of technology institute ARTI India, this biogas digester made by two 1000 and 750 litter Plastic water tank one is called Digester or fermenter tank other is called gas holder tank or movable dome.I am sharing on Pakistan Science club's web for educational and promotional purpose we hope its will helps Pakistani people and PSC's web portal international readers


The compact biogas plant many rural household used biogas as cooking food  the tradition of domestic biogas plant require a daily input of forty kilograms of dung mixed about forty litter of water it takes about forty days for the dung to start producing biogas in order to accommodate the daily input of forty kilo gram dung and retaining it  in to plant for forty days requires of plant having of very large capacity up about four cubic meters because of the large size such a plant requires a lot of space and it  cost also high because of the moving populations of cattle the availability of animal manure has declined causing many of the existing biogas plants stop operation.


Related Posts

Construction of Portable Biogas Digester
VACVINA biogas Plant information and Construction Video
Building of Biogas Plant by Recycled Plastic Drum
Biogas Digester Photos


Arti biogas plant

Appropriate rural of technology institute (arti) has developed new compact biogas system which is very easy to use. This biogas plant’s works on starchy sugary cellulose or fatty substances. One can use non vegetable oil seeds like pongamian, neem, caster, damaged or override fruits, grains, flour mill wastes, fruits of vaecas non animal risen of banana peel, or any other substance related feedstock, the feedstock must be closed grand and applying to the biogas plant. After mixing it with  the about five to ten liters of water about one to one in half kilo gram of starchy material would yield sufficient gas to cook the meal is about four to five persons the amount of gas generated everyday depends upon the capacity of the fermenter or bio gas digester and gas holder  fermenter capacity
Five hundred litters gas holder capacity four hundred available gas tow hundred and fifty liters duration of burning one hour
Digester capacity one thousand litters’ gas holder capacity seven hundred fifty litters available gas 700 litter and duration of burning two hours
Digester capacity two thousand five hundred letters
Gas holder capacity two thousand litters
Available gas one thousand seven hundred and fifty litters and duration of burning five hours
There are various ways which this biogas plants can be fabricated this arti biogas plant has been fabricated that the help of tow plastic tanks this one has a cement concrete tank has the fermenter or digester and the plastic tank has a gas holder.
This third model tank has tank made by sheet metals. Although the fermenter tank made of different materials the gas hold tank always made of plastic.

How to make a Biogas plant digester by 1000 litter of water tank and gas holder tank 750 litter


Video of The compact biogas plant part one watch ARTI Biogas Plant anaerobic digester Introduction Part one




Material required

  1. 1st 1000 litter Black colored molded plastic tank
  2. 2nd 7500 litter Black colored molded plastic tank
  3. 90 millimeter T one piece PVC
  4. 90 millimeter female adapter 1 piece PVC
  5. 90 millimeter male adapter 2 piece PVC
  6. 90 millimeter cap 1 piece PVC
  7. 2 meter 90 millimeter diameter 1 piece PVC Pipe
  8. Elbow 63 millimeter 1 piece
  9. 60 millimeter male adapter 2 piece PVC
  10. 60 millimeter check nut 1 piece PVC
  11. 63 millimeter PVC pipe 90 centimeter long
  12. 12.5 PVC mail adapter 1 piece
  13. 12.5 Millimeter iron elbow
  14. Epoxy risen and hardener
  15. PVC cement Solution
  16. Biogas Stove
  17. PVC valve 50 millimeter dia
  18. And tools
  19. 90 millimeter barrel piece
  20. 63 millimeter barrel piece
  21. 50  millimeter barrel piece
  22. 12.5 millimeter barrel piece

Construction of ARTI Compact Biogas Plant

First Take the one thousand  liter tank cut in this manure  perforated near the base By pressing Preheated Nineteen mm barrel piece against than  perforated tank Also near the bottom but With  fifty millimeter bout of peace Prudhomme of this position Would be helpful b sixty three millimeter barrel peace
Make a third holes one this position with the help of 63 mm barrel piece
The tank as three holes 2 near the bottom and 1near the top
Now PVC glue to the nineteen millimeter main adopted And fix it into this ball from inside the trades no protrude out of the tank fixed.
biogas plant diagram


Video of The compact biogas plant part Two Visit Compact Biogas Plant anaerobic digester



Page is still updating.




See Also

Making of DIY Biogas Plant, Anaerobic Digester Experiment

Making of DIY Biogas Plant, Anaerobic Digester Experiment Making of DIY Biogas Plant, Anaerobic Digester Experiment Concept The purpose of this project is to discover ways to produce Biogas with alternate sources by using our local resources this project can help students to basics of Anaerobic digestion and…read more DIY Biogas Plant