Water warmed via way of means of
the solar expands and rises because it will become much less dense. Once it reaches the floor, the water
loses its warmth to the air via convection, or evaporates, taking warmth with it. The colder
water, that is heavier, movements right all the way down to update the nice and cozy water, developing a natural
convective flow that combines the water and dissipates the warmth. The layout of sun
ponds reduces both convection or evaporation so that it will shop the warmth accumulated via way of means of the
pond. A sun pond can shop warmth a good deal extra effectively than the frame of water of same
length due to the fact the salinity save you convectional current.
Working Principle
 The sun pond works on a totally easy principle. It is famous that water or air
is heated they come to be lighter and upward push upward. Similarly, in an normal pond, the
solar`s rays warmth the water and the heated water from in the pond rises and
reaches the pinnacle however loses the warmth into the atmosphere. The internet end result is that the
pond water stays on the atmospheric temperature. The sun pond restricts this
tendency via way of means of dissolving salt withinside the backside layer of the pond making it too heavy to
upward push.
 A sun pond is an artificially built water pond wherein significant
temperature rises are brought on withinside the decrease areas via way of means of stopping the incidence of
convection currents. The extra unique phrases salt-gradient sun pond or non-
convecting sun pond also are used. The sun pond, that is without a doubt a massive location
sun collector is a easy era that makes use of a pond among one to 4 metres
deep as a running material.
 The sun pond possesses a thermal garage ability spanning the seasons. The
floor location of the pond impacts the quantity of sun strength it may collect. The dark
floor at the lowest of the pond will increase the absorption of sun radiation. Salts
like magnesium chloride, sodium chloride or sodium nitrate are dissolved withinside the
water, the awareness being densest at the lowest (20 % to 30 %) and gradually
lowering to nearly 0 on the pinnacle.
Typically, a salt gradient sun pond includes 3 zones.
 An higher convective quarter of clean clean water that acts as sun collector/receiver
and that is notably the maximum shallow extensive and is commonly near ambient
temperature.