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When radiant energy strikes the surface of an object, a proportion (depending upon the angle of incidence and the nature of the surface) is reflected, part is absorbed and part may be transmitted through the object. With a few important exceptions, such as photovoltaic cells, the energy of the absorbed radiation is degraded rapidly to heat.
The balance between the absorbed input energy and the heat loss to the environment determines the temperature attained. The heat loss increases with the temperature and limits the ultimate temperature attained by a collector system. It also reduces the proportion of useful heat extractable from the system. Maximum temperatures and maximum useful power outputs are therefore obtained when a highly absorbent, well-insulated body is exposed to a high intensity of solar radiation. A wide range of systems, designed to meet a variety of needs and situations, have been developed and many are available commercially.
The best known solar heating device is the flat-plate collector, which is widely used for water heating in many parts of the world. The flat-plate collector absorbs as much as possible of the incident solar energy that falls upon it. Since the collector is normally fixed in position, the plate is close to perpendicular to the beam of sunlight (and therefore maximum absorption) for only part of the time, and the level of energy received therefore varies more strongly with time and season than does the actual intensity of the solar radiation. Because of the large areas over which heat can be lost, the retention of heat and hence the collection efficiency, falls off rapidly with increase in collection temperature. Since domestic water is normally needed at only about 50oC this is not normally a problem
What else can I help you with?
What Used to disinfect water?
Ozone and Chlorine
What does coccus eat?
Cocci is easily transmitted through contaminated food or dirty water. Cocci is a bacteria and can get its food from either sunlight, organotrophs or lithotrophs.
If sun UV rays can poison purified water?
No it can't poison water. If that was the case nothing could live in or around water. Animals drink it. People drink it. Trees grow around and in water. Fish swim it. In fact, it's the opposite. UV rays can purify contaminated water. The SODIS method (look it up) is used in many countries around the world where clean water is not available. Water is put into a clean PET bottle and left in the sun for 6 hours. After that the water is clean and safe to drink.
Can sugar water disinfect surfaces?
No. In fact, the sugar may promote bacterial growth.
What water travels across land may pick up substances and become?
contaminated. This contaminated water can harm aquatic life, plants, and even humans if consumed. Therefore, it is important to protect water sources from pollution to ensure clean and safe water for all.
Does hot water disinfect better then cold water?
Cold water will not disinfect. Water must be boiling for it to be able to disinfect anything. It is not recommended to pour boiling water on the skin, though. If you're looking to disinfect a wound, try alcohol.
How can a magnifying glass be used for water purification?
A magnifying glass can be used for water purification by focusing sunlight through the glass onto contaminated water. The heat from the concentrated sunlight can kill harmful bacteria and pathogens in the water, making it safer to drink.
What are Micropur tablets used for?
it is a water purifier tablet, allow the contaminated water to sit in an area away from the sunlight for a minimun of 4hours before drinking
How hot should water be to disinfect crockery?
Water should be about 185 degrees Fahrenheit to disinfect crockery.
How do I disinfect a used appliance I have acquired?
Simply wipe down any area that may come in contact with things you wish to not have contaminated with a solutin of bleach and water. The parts that come in contact with contaminatable things, such as food, will be water proof.
How much bleach should be added to water to effectively disinfect it?
To effectively disinfect water, add 8 drops of bleach per gallon of water.
Does salt water effectively disinfect surfaces and objects"?
Yes, salt water can effectively disinfect surfaces and objects due to its antimicrobial properties.
What is used to disinfect water?
Ozone and Chlorine
What Used to disinfect water?
Ozone and Chlorine
How much bleach should be added per gallon of water to effectively disinfect?
To effectively disinfect water, you should add 8 drops of bleach per gallon of water.
How Is ground water naturally contaminated?
It is not natural for water to be contaminated, however, all natural water is contaminated because water in essence is a particle carrier and particles are contaminants.
What does coccus eat?
Cocci is easily transmitted through contaminated food or dirty water. Cocci is a bacteria and can get its food from either sunlight, organotrophs or lithotrophs.
