Describe how solar radiation can be utilised to rpovide domestic hot water and lightening
The solar radiation can be converted in two different domestic forms of final energy, the first one is electricity, second one is the energy from which we can warm up disposable water.
This process begins with the energy provided by the sun that has to be gathered in a collector from which it can reach photovoltaic cells to produce electricity or it can reach a heat exchanger to be converted in heat and give hot water. This step is dependent on the amount of sunlight that can be collected by the machines.
The second step is the integration of the solar energy previously gathered in accumulators (giving electricity) or in water tanks (giving hot water), the so called secondary circuits.
The final output of this process is in the domestic use of electricity lightening up our lights, and in the tap water coming out of the taps in our buildings.
- The graph below gives information about international tourist arrivals in different parts of the world. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. 80
- The graphs below show some trends in visits to the UK by overseas residents and visits overseas by UK residents between 1982 and 2002 Summarize the information by selecting and reporting the main features and make comparisons where relevant Write at least 75
- the map below show the village of stokeford in1930 and 2010. summarise the information and make comparison where relevant. 70
- The chart below shows the changes that took place in three different areas of crime in New Port city center from 2003-2012. Summarize the information by selecting and reporting the main features, and make comparisons where relevant. 80
- In some countries an increasing number of people are suffering from health problems as a result of eating too much fast food It is therefore necessary for governments to impose a higher tax on this kind of food To what extend do you agree or disagree with 80
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