Temperature rise (NASA)

Corrosion engineering consultant

Corrosion Doctors site map

Alphabetical index of the Corrosion Doctors Web site

Solar Thermal

Humans have used sunlight to perform a variety of tasks for centuries, but the concept of solar thermal energy really got cooking in 1767 when the Swiss scientist Horace de Saussure invented the world's first solar collector, or "hot box". Renowned astronomer Sir John Herschel used solar hot boxes to cook food during his expedition to Southern Africa in the 1830's. Solar thermal energy became important in parts of Africa for cooking and water distillation. Solar thermal systems concentrate heat and transfer it to a fluid. The heat is then used to warm buildings, heat water, generate electricity, dry crops or destroy dangerous waste. Solar Thermal Collectors are divided into three categories:

Concentrating Solar Thermal Systems use three different types of concentrators:

Technology Examples