Tips & Warnings. 1  Use an epoxy resin spray on cured pieces to cover indents or other imperfections. 2  You can also buff out imperfections with plastic polish and a buffing stick. 3  If air bubbles form in the mold, blow gently on them to pop them. 4  Wear gloves and work in a well-ventilated room.f it does show an indentation, leave to cure for an additional 1 to 2 days. Turn the mold upside down and lightly tap the back until the the resin piece emerges. Spread the resin pieces out on a sheet of wax paper and leave them to finish curing for an additional 12 to 24 hours before buffing or mounting.
1.0 Passive Solar Design Introduction. Solar energy is a radiant heat source that causes natural processes upon which all life depends. Some of the natural processes can be managed through building design in a manner that helps heat and cool the building. The basic natural processes that are used in passive solar energy are the thermal energy flows associated with radiation, conduction, and natural convection.
Small Solar Electric Systems. A small solar electric or photovoltaic system can be a reliable and pollution-free producer of electricity for your home or office. A small solar electric or photovoltaic (PV) system can be a reliable and pollution-free producer of electricity for your home or office.Small PV systems also provide a cost-effective power supply in locations where it is expensive or impossible to send electricity through conventional power lines.ecause PV technologies use both direct and scattered sunlight to create electricity, the solar resource across the United States is ample for home solar electric systems. However, the amount of power generated by a solar system at a particular site depends on how much of the sun's energy reaches it.