Here you have the documentation of thermal energy

Thermal Energy Documentatiopn by Alvaro Befeater

BY ALVARO

Here is a video about convection, conduction and radiation.

 Alvaro

How does a heating plant works

A thermal station is the one that transforms the heat energy of the coal or gases in electric energy.  We can also consider the nuclear station as thermal. All thermal station must follow a cycle of production of steam destined to the preparing of the turbines that moves the alternator rotor:

-1 The water is heatten that have been pumped to a cooling coil (that is a pipe system) .The water heating its produce because a boiler that obtains energy of the combustion of the combustible (pulverized coal).

-2 The liquid water goes to transform in steam; this steam is wetter and low energetic.

-3 The steam over heat it self that turn dry, to higher temperature and pressure.

-4Thre overheating steam goes trough a conduction system and it set free it self to a turbine.

-5The turbine is connected to an alternator, finally, it produce the electric energy.

-6In this last stage, the steam goes colder it also condenses and returns to the liquid status. The liquid water take art in a close circuit and it will return to the boiler again, with the previous heating. The electrical current generates more less 20.000 volts of tension and it goes to the transformers  to elevate the tension up to 400.000 volt, to transport it to the shop point.

Alvaro

HOW IS THERMAL ENERGY USED IN

NEW ZEALAND?

Thermal energy plays a key role in supplying

New Zealand’s electricity.

Genesis Energy’s Huntly Power Station is the

country’s largest power station. It has six

separate generating units: four conventional

boiler and turbine units that can burn coal

or gas and that each generate 250 MW of

power, one gas-­red turbine generating

48 MW and a 385 MW combined cycle gas

turbine (a 250 MW gas turbine plus a 135 MW

steam turbine) – a total capacity of 1433 MW.

Huntly is capable of producing nearly 13 TWhr

(13 million MWhr) of energy each year – about

20% of New Zealand’s electricity requirements.

Other fossil-fuel burning power stations are

located in Auckland, Taranaki and Hawke’s

Bay. New Zealand is a pioneer in the use of

geothermal energy. Wairakei is the oldest

operational geothermal power station in the

world. New Zealand’s other geothermal

power stations are all in the Taupo Volcanic

Zone and the Northland geothermal ­eld.

In total they account for 635 MW or nearly

7% of our generating capacity.

Pablo

How can affect the temperature to thermal energy.

Hi here is a video about how does the temperature affects to the thermal energy.
Alvaro, Pablo

Disadvantages of thermal energy

The hot fuels generates emissions of greenhouse gases and acid rain in the atmosphere, with flying particles that may contain heavy metals.
Some disadvantges are:
· When fossil fuels finite energy source, its use is limited to the duration of reserves and / or profitability.
· Their thermal and vapor emissions can alter the local microclimate.
· Adversely affect river ecosystems due to discharges of hot water in them.

Victoria.