Weanas Solar Panel Power Home System Kit with LED Bulbs External Battery Power Bank Solar Energy Recharge USB Combo Charging Charger Cable for iPhone iPad Samsung HTC Camping Trip Home Indoor OutdoorSpecification: * Safety and easy installation; * Good quality panel to ensure the high efficiency and long life needs; * Lighting Source: LED lamp * Charging time: by sun 9 hours (Sunny weather, at 77°F) * Solar Batteries: lasts 7 Hrs (at 77°F) * 4000mAh Lithim Battery * USB Output: 5V 2.1A / 5V 1A * For iPhone 6 Plus 5S 5C 5 4S, iPad Air 2 Mini 3, Samsung Galaxy S6 S5 S4 Note Tab, Nexus, HTC, Motorola * Applicable to Camping trip, Home, Indoor, Outdoor, Driveway, Stairs, Walkway NOTE:The suitable working temperature of the battery is +32°F - +104°F. When the temperature is ...
Presents the fundamental principles behind solar energy technology for serious students in science and engineering. Discusses the apparent motion of the sun and the energy it provides at the earth's surface, the principles of heat transfer and optics, solar heating applications, and thermodynamic and photovoltaic conversion of solar energy to useful work. Contains numerical examples and derivations of formulas.
This handbook provides climatological data which can be used as an input for the design of passive solar buildings and solar systems. Solar radiation data are presented for 37 typical European locations, e.g.: -- monthly average global and direct solar irradiation for several surfaces (types of receiver, orientation and inclination), and -- cumulative frequency and utilizability curves of solar irradiance. Ambient temperature data are presented for 186 European locations as monthly average ambient temperatures and monthly degree-days at several base temperatures. A set of methods and algorithms is also given for the reconstitution of these parameters at places where little information is available. Examples of design tools are introduced. The Handbook has been developed within the framework of a European concerted action entitled EUFRAT. Reference is made to a set of computer programmes and data bases which complement the Handbook in a useful way. The Handbook can easily be used by anyone (scientist, engineer, student or even non-specialist) who needs climatic data for the design of systems.