Thursday 17 April 2014

hybrid energy system



hybrid system refer to a home wind or solar power system that can be connected to a national grid system,  hybrid system is many advantages over signal power generation because it combine wind, electrical, solar and photovoltaic technologies in a single one.
in many area when the wind pressure is greater in one season and solar is less, or solar is greater and wind is less, etc hybrid system is the best option for these areas, for the time when neither the wind neither the solar system are , most hybrid system provide power through batteries or engine generator using fuels such us diesel etc, if batteries low then generator provide the power.
many system are stand alone system which operate off grade, i.e not connected to any system, to store the power which is produces its advisable to purchase batteries, and a charge controller.power condition equipment , safety equipment , metering and instrumentation.

DO YOU KNOW

DO YOU KNOW 
In Turkish, the bird we call a Turkey is called "Hindi" ("from India"). In India, it's called "Peru." In Arabic, the bird is called "Greek chicken"; in Greek it's called "French chicken"; and in French it's called "Indian chicken." The bird is indigenous to none of these places.

Wednesday 16 April 2014

Projectable Virtual Keyboard.


Projectables Virtual Keyboard.
The device simply projects the laser image of a keyboard onto a plane surface. Just type on that keyboard
projection keyboard is an  input device  of a computer whereby the image of a virtual keyboard is projected onto a surface: when a some one  touches the surface covered by an image of a key, the device records the corresponding keystroke.
its was first invented by IBM engineer  in 1992,
in this keyboard a sensor is used which convert the movement of the finger into identical action by using software , in some keyboard infrared rays is used over the surface of the light , when some one tough the virtual button , infrared rays reflect from the finger of the user and back to the projector, which passed through an infrared filter and on the way is pass through a camera which measure the angel at which these infrared rays were reflected and sense back by the projector, which use a software and identify the virtual button which was press by the user. the diode used in it is infrared red laser diode and the sensor is CMOS sensor chip.
user can connect this virtual keyboard to computer by either usb or through usb port.

Request a new IP address from your ISP server

Here's how to do it in windows:
1. Click Start
2. Click run
3. In the run box type cmd.exe and click OK
4. When the command prompt opens type the following. ENTER after each new line.

ipconfig /flushdns
ipconfig /release
ipconfig /renew
exit
5. Erase your cookies in whatever browser you are using.

Frequently you will be assigned a new IP address when this happens. Sometime you will, sometimes you will not. If you are on a fixed IP address, this method will not work. If this works for you, you may want to save the above commands into a batch file, and just run it when you need it.

Tuesday 15 April 2014

how to calculate electrical bill of your home

                             
let us suppose your home load(fan,bulb etc) connected to the main supply , remain on during the following hours .


Time                 No                       Power                            Name

6pm to 12am           1                               1000w(1kw)                             Air conditioner 
6am to 10am           1                               2000w(2kw)                             washing machine 
6am to 9am             5                               100w( 5*100w =1kw)               bulb
   
                        Now the total unit consumed in the given hours will be 
                        E = 1 kw*6 hour + 2 kw*4 hour + 1 kw*3 hour =17kwh = 17 units 
if the electrical unit supply to you, by an electrical company at a rate of 2$/unit, then your exist electrical bills during the above hour will be 17 units*2$ = 34$ daily 
and your electrical bill for the whole month will be 17 units* 2$* 30 days = 1020$/months 

Monday 14 April 2014

Digital shoes



Digital Shoe.
It talks when you walk. This shoe has DVD player, speaker, USB port and headphone facilities.
You can play music from memory card by USB port..
it was first announced by NIKE On wednesday,NIKE + basketball shoes is equipped with pressure sensor that sense/collect data and send it to the smart phone, four different sensor are used at the tip of the toes , in the sole, heel of the  foot, that sense the pressure, acceleration and thus speed, power and vertical jump can be easily determine in games etc...

DOZER


Dozer 

DOZER 
A dozer is a machine equipped with a substantial metal plate used to push large quantities of soil , sand , rubble etc.
 COMPONENTS
THE TRACTOR
 THE  ENGINE
 THE TRACKS
 THE  BLADE

 
THE TRACTOR 
It encompasses the cab where  
the controls are located.  


THE ENGINE 
They are high powered diesel engines, mainly because of the torque necessary to move through very rough terrain.

THE TRACKS 
located on either side of the body, are made up of heavy metal links that create powerful traction.

THE BLADE
  Located at the front of the tractor , and is able to lift 
    the blade up and down.


Types 
 Wheel Dozer
 Crawler Dozer


Tasks 
 Stripping/spreading topsoil and materials
  cut and fill
  stock pilling
  bulk excavation


Capacities
They are available in various hp capacities

Saturday 12 April 2014

Graders


Graders  are  multipurpose
machines  used  primarily for general construction and maintenance of roads and runways,
 moving large amounts of materials like soil ,snow  laterally by side casting.




Moldboard: it is also referred as blade. Used for side cast the material it encounters .its ends can be raised or lowered. it can be placed in may position.
Frame : the frame connected to the front axle extends the full length of grader and enhances the mechanism.
Scarifier : material too hard to cut with the moldboard are broken with the scarifier.
Circle : the circular shape beneath the frame allows the moldboard to position at any angle. 
main component


Different Tasks of a grader:
1) Planning surface: Mold board can be set at any angle to plane off irregular surfaces and using the resultant material to fill low spots.
2) Ditch cuts: Ditches can be cut by moldboard and scarifier combined normally at 2nd gear at full throttle.
3) Creating a bank slope: Grader  can be used for Sloping the bank of road prevents slope failure.

4)Cleaning Ditches: Grader can be used to remove unwanted material from ditch during the bank slope operation.
5)Spreading material: Graders are often used to spread and mix loads.

Capacities
Different capacities of grader ranges from 
about 60 to 600hp.

Blade size ranges from 2.5 to 7.3 meter.

Fork lift


Introduction
Also known as lift truck, a stacker-truck, trailer loader, side loader, fork truck.
The Pennsylvania Railroad in 1906 introduced battery powered platform trucks.
A tool capable of lifting thousands of pounds
It has two metal forks on the front used to lift cargo.
Toyota Forklift 



Main components
Truck Frame - Is the base of the machine to which the mast, axles, wheels, counterweight, overhead guard and power source are attached. 
 Counterweight - is a mass attached to the rear of the forklift truck frame. The purpose of the counterweight is to counterbalance the load being lifted.

Cab - is the area that contains a seat for the operator along with the control pedals, steering wheel, levers, switches and a dashboard containing operator readouts.
Overhead Guard - is a metal roof supported by posts at each corner of the cab that helps protect the operator from any falling objects.

Power Source - may consist of an internal combustion engine that can be powered by LPG, CNG gas, gasoline or diesel fuel.
Tilt Cylinders - are hydraulic cylinders that are mounted to the truck frame and the mast. The tilt cylinders pivot the mast to assist in engaging a load.

Mast - is the vertical assembly that does the work of raising and lowering the load.
Carriage - is the component to which the forks or other attachments mount. 

Load Back Rest - is a rack-like extension that is either bolted or welded to the carriage in order to prevent the load from shifting backward when the carriage is lifted to full height.
Attachments - may consist of forks or tines that are the L-shaped members that engage the load. Some attachments include sides hifters, slip sheet attachments.

Types
Standard Trucks
Reach Trucks
Order Selecto
Motorized Pallet Trucks
Swing Mast Trucks
Turret Trucks
Internal Combustion Forklifts
Electric Forklifts

Tasks
To carry heavy materials on to the elevated platform.
The load rest on forks maneuvered securely under the ground.
Carry heavy materials from one place to the other.
Does not occupy more space unlike the trucks and lorries.

Capacities
Forklift trucks are available in many variations and load capacities.
Up to 50 tons lift capacity are used for lifting heavier loads.
The engine horsepower and bucket capacity depends from company to company.

Faults
Gearbox faults
Sensor power supply voltage has a malfunction.
Connectors coming loose ,wires breaking inside the sheathing.
Problems due to heat exposure or long run.

Fork lifter Safety
Pinch Points
Watch where you place your hands and feet. Be aware of and stay clear of pinch points. 



Stay in Your Truck  
 Stay under the overhead guard. It is designed to protect you while you operate the truck.

You are Responsible for Others
  

Operating your lift truck safely means you are not only responsible for your safety, but also for the safety of the people around you. Always look out for others before moving your lift truck.

precaution




introduction to site( civil engineering mini student project)

Introduction To Site
                 Casualty Block KTH
Client: C&W KPK
Consultant: M/S Shaz Consultants
Completion Time: 36 Months (3 years)
It is constructed by Frame Structure Method
It has 9 stories
Total Covered Area : 229,282 sqft
Building consists of surgical wards, medical wards, cardiology wards and ICU
Cost estimate : Rs 332 million
Ground Floor Plan Details
The NSL of Floor level is 14ft
Bricks masonry is used in walls with different types of bonds
The width of external boundary walls is 13-1/2in  having Single Flemish Bond
Width of walls of rooms are 9in having English Bond

9″ Wall
Width of washroom & partition walls is 4-1/2in having Stretcher Bond
Wards : 43′-2″*17′-3″
Waiting Room : 16′*12′
X-Ray Room : 29′*20′
Mortar used in walls is of ratio = 1:2:4
The Mortar used has strength of 3000psi
60-grade steel is used in beams and columns having 60000psi strength
#08 Bars are used in columns



English Bond
9″ Wall

Friday 11 April 2014

Stair Reinforcement( civil engineering mini student project)

Detail


A  staircase or  simply stairs is a construction designed to bridge a large vertical distance by dividing it into smaller vertical distances, called steps.

It make easier for the inhabitants of the building to move with ease through different stories of the building.

 A staircase isn't just a link between two floors  it's a major architectural feature that turns an ordinary entryway into an elegant grand entrance.
We Generally Use two Terms While Talking about the Dimensions of Stairs
Riser
Tread

Tread 
        The part of the stairway that is stepped on.
Riser 
      The vertical portion between each tread on the stair.
site detail are 
Casuality Block
Work is Under C&W KPK
Consultant : M/S Shaz Consultant
Completion Time = 36 months
Sponser Agency : Health          Department KPK
Here are Some Snaps Which I took during my Visit to the construction sight











Specifications of these stairs
Riser = 6.75”
Tread = 12”
Width = 5’
Steel Used
Grade 60 Steel was Used
 #4 steel  was used  in                                                             Distribution bars
#5 steel was used in main Bars