Water, wind and sun - the most accessible and inexhaustible source of energy that nature gives to man. It is no accident to them in recent years, re-drawn the most attention as a science and industry, and creativity enthusiasts, amateur designers. Some of them created by «home» devices using wind and solar, we have [...]
Continue reading about Energy - the gift (solar water heater)
Just when you thought ice cube-creation technology had peaked, a team of engineering students from San Jose State University has come up an ice maker that has zero carbon footprint. It’s more than an eco-party trick — consider it an electricity-free alternative to refrigeration and air conditioning, which is critical if you happen to be [...]
Continue reading about Solar icemaker: get the sun to keep things cool for a change
This a Stirling engine concept that I am developing as part of my Masters of engineering degree at the university of Canterbury (New Zealand).
The displacer, shown at the right, is a segment of a third of a cylinder, which is rotated back and forth by an electric motor, forcing air through the heat exchangers and [...]
MAKING THE GENERATOR
Although you can simply wind the coil directly around the plastic film can (see picture of the first prototype) it is neater and easier to make a simple bobin to wind the coil round. Here’s how to do it:
Step 1
Find a 35mm plastic film can and remove the lid. Cut out two cardboard [...]
Continue reading about THE SIMPLEST HOMEMADE ELECTRICAL GENERATOR
The Turgo turbine is an impulse type turbine; water does not change pressure as it moves through the turbine blades. The water’s potential energy is converted to kinetic energy with a nozzle. The high speed water jet is then directed on the turbine blades which deflect and reverse the flow. The resulting impulse spins the [...]