Other sources of energy

Question 1

What are the main energy sources?

Answer 1

coal, hydro(hydro electrics), nuclear, oil and gases

Question 2

What is one disadvantage that coal, oils and gases have In common?

Answer 2

having limiting supplies(non-renewable)

Question 3

What are traditional energy sources called?

Answer 3

Fossil fuels.

Question 4

How are traditional energy sources used to make energy?

Answer 4

They burned the any type of fossil fuel(gas, oil and coal) and produces heat. This heat is then used to turn water into heat which turns the turbines and rotate the generator.

Question 5

What are the disadvantages of nuclear and hydro(hydro electrical?)

Answer 5

All do hydro is clean and renewable. You will need to have a mountain and dams to store a lot of water.

Whilst nuclear doesn’t produce any green houses but has over problems like what to do with the waste of material.

Question 6

What are renewable energies?

Answer 6

Nuclear ​,Hydro-electric​ ,Batteries and cells​ ,Solar power (thermal/photovoltaic)​, Wind energy​, Wave energy​,Micro-hydro​, Ground source heat pumps​ And Combined heat and power (CHP) including micro-CHP​

Question 7

What are Batteries?

Answer 7

Batteries consist of multiple cells connected in series

Question 8

What is the difference between a normal cell and a battery?

Answer 8

A normal cells has one whilst a battery has multiple

Question 9

What is the EMF of a cell and a battery?

Answer 9

1.2 to 2v for cells and for battery it 6v connected in 3-4 series

Question 10

What is the EMF of a car battery?

Answer 10

12v and have six lead acid of 2v in series.

Question 11

What are the two types for battery?

Answer 11

Primary & secondary.

Question 12

What is a primary battery source?

Answer 12

A primary battery source consists of a zinc plate potential caused by different materials. Applications of primary sources can include a torch light. The zinc decays over time which means It cannot be charged.

Question 13

What is a secondary battery source?

Answer 13

Secondary sources can needs to be recharge to be used this means it can be reused for a long period of time but it slight more expense then zinc battery’s.

Question 14

What is the disadvantage of using a battery?

Answer 14

Battery need to be constantly recharged in order to use it again and the store up is quite minor compared to a power station.

Question 15

What are the two types of solar power?

Answer 15

Thermal & photovoltaic

Question 16

What is thermal?

Answer 16

Thermal does not produces electricity it is instead used to produce heat water.

Question 17

Give an example of how thermal produces heat for water pipe?

Answer 17

Water filled pipes are exposed to the sun which heats up the water.

Question 18

What is the process of water pipe?

Answer 18

A pump circulates the water through heat exchangers in the hot water cylinder and heats up the water in the tank.

Question 19

What is photovoltaic (PV)?

Answer 19

Photovoltaic are silicon semiconductors cells that are usually roof-mounted where light energy(protons) hits direct current is produces.

Question 20

What are examples of PV other than roof-mounted?

Answer 20

Calculators, gardens, luminate pathways at night and roadside signs.

Question 21

What can produce wind power?

Answer 21

Wind turbines

Question 22

Why is wind power being used most now?

Answer 22

Because it the best alternative source of energy now.

Question 23

How does turbines work?

Answer 23

As the blades on the turbines turn, they drive electrical generator within the turbines housing via gearbox and the output from the generator produces the supply for the public

Question 24

Where are wind turbines usually grouped?

Answer 24

Around farms

Question 25

What are the types of turbines available?

Answer 25

They many types but are usually come either horizontal or vertical.

Question 26

What is wave energy?

Answer 26

Wave energy is the transport of capture energy by the ocean wave.

Question 27

How is it captured?

Answer 27

By using absorber or buoy

Question 28

How is wave energy converted?

Answer 28

Using hydraulic ram and hydro-electric turbine

Question 29

What is the difference between hydro-electric and Micro-hydro?

Answer 29

Hydro-electric schemes rely on water for a dam running down in low speed using a water turbine which drives the a.c. generator whilst Micro-hydro has the same principle but uses less water the hydro electric.

Question 30

What is the process of micro hydro?

Answer 30

Takes existing ponds or river(with permission) and run through a pipe to a turbine or generator (usually up to 100kw rating) and intakes water which is then filtered to remove fish, debris and once water has passed through it will then be discharged to another water source.

Question 31

Why is micro hydro used in conjunction with photovoltaic systems?

Answer 31

Micro hydro and photovoltaic systems are use in together because when their tends to be a lot of water they will be less sunlight and vices Versia so the combination of both systems will give a more consistent source of energy.

Question 32

What does GSHP stand for?

Answer 32

Ground source heat pumps

Question 33

What are ground source heat pumps function?

Answer 33

GSHP collects low-level energy from the ground and condensed it and then uses that as energy to heat up the water and building.

Question 34

How does GSHP store it energy?

Answer 34

GSHP works like a refrigerator with the refrigerator coil transferring heat to the soil the summer for cooling and takes up heat from the soil in the winter(for heating)

Question 35

How does combine heat and power work?

Answer 35

Well power stations produce electricity, heat and waste due to this the efficiency of Morden power is 38% however by using the left over heat produce by the power station to heat the building which would otherwise be lost the efficiency is then increase by 90%