You can size your solar array in just two easy steps! (Well, okay, there's a little research involved, too.) To estimate the size of your solar array, you'll need to know: # The number of Watt-hours (Wh) you plan to produce in one day. # The insolation value at your location. I have found this website to offer the easiest way to find out How Many Solar Panels do you need in your Solar Array?
http://howto.altestore.com/Library-Articles/Solar-Electric-Power-or-PV-Systems/How-Many-Solar-Panels-do-you-need-in-your-Solar-Array/a88/
When installing surface mounted cable the best method of ensuring that it is kept straight is by using more fasteners that is required by the electrical code. Another way is to install it into a conduit chase. The conduit can be fastened to the building using a level to keep it straight. The cable can then be pulled into the conduit.
Undesired current flow across the surface of a semiconductor device due to contamination of that surface. This disturbs the operation of the device and causes a variety of failures. Insulators can also have surface leakage current for similar reasons.
Multiple stranded cable is used in transmission lines because the high voltage potential of each line causes the electrons to tend to run only on the surface of the line due to repulsion. You want to maximize the surface area of the line, hence the multiple stranded lines, so that you maximize the efficiency of the line. In fact, some transmission lines have a non-conductive core, adding strength while maintaining low weight.
It's a surface over which electric charges are evenly distributed, caused by the mutual repulsion between charges of the same polarity.
over 9000
It depends on how long you are prepared to wait!
A matchstick needs friction to ignite, which is provided by the rough striking surface on the matchbox or matchbook. A smooth surface lacks the abrasiveness required to generate the necessary heat to ignite the matchstick.
ISTEA was created to generate as much as $90 billion in additional funds for new mass transit projects between 1992 and 1997.
ISTEA was created to generate as much as $90 billion in additional funds for new mass transit projects between 1992 and 1997.
One word- gravity. Mercury is just simply not massive enough to generate the gravity required to hold gases close enough to the surface to create an atmosphere.
Water covers about 70 percent of the Earth's surface.
the high efficiency is obtained by using a larger condenser surface or by using more mordern alloys with more extended surface or fins
We use about 38 percent of Earth's land surface for agriculture.
Landmasses occupy approximately 29 percent of the Earth's surface.
Shells on wind turbines are designed to be smooth to reduce aerodynamic drag and improve efficiency. A smooth surface helps to minimize turbulence, which allows the turbine to capture more wind energy and generate electricity more effectively. Rough surfaces create more drag and can reduce the efficiency of the turbine.
About 71 % of the surface is covered by water. The rest (29 %) is land.
The efficiency of a heat exchanger is directly proportional to its surface area. This means that a larger surface area allows for more heat transfer, resulting in a more efficient heat exchanger.