The Horse 2021/22

Environment & Technology

Concept draft - IDAF Task 5

Main part of the IDAF project
"Energy 100 years ago, today, in 100 years"
 
My project will be about nuclear energy. I find it a really interesting topic and I know different things to write and research about it.
 
Below is my concept draft for the project - own thoughts of how I could start and what I could write about it.
 
100 years ago:
writing and researching about Marie Curie, polonian physician who discovered radioactivity and radiochemistry
 
Today:
  • how is nuclear energy used today?
  • is it more dangerous or safer than 100 years ago?
  • Accident of Tchernobyl and atombombs in Hiroshima and Nagasaki
  • "Halbwertszeit" and the C14-method (S. 144 mathbook)
  • Nuclear energy in our everyday life especially in movies/hollywood productions
 
In 100 years:
evtl. a new form of calculating the radioactivity - too little timespan for such a long timedurance - thoughts are working
 
Required calculation:
I will do a calculation about the radioactive decay with the C14-method and a simple example ( e.g. radioactivity in the area of Tchernobyl or something else with high radioactivity)
 
Required pictures, drawing, graphics, photos:
I don't know how to solve this problem yet. Because I can't travel to Tchernobyl only to take pictures of nuclear power plants by myself. I'm too bad at drawing and so I think I have to take pictures from the internet. (licensefree pictures or whatelse)

Task 18 - Instagram Propagation

Travel is a passion and is a very significant luxury. Therefore, it is even more important to maintain this as sustainable and long-lasting as possible. With simple tricks and tips from first-hand travel professionals from Thailand and Switzerland, it is possible to easily travel more sustainably.

Check out our post on dontwastemy.energy to learn more! :-)

Link: Sustainable Tourism - การท่องเที่ยวอย่างยั่งยืน | Don't Waste My Energy! (dontwastemy.energy)

 

IDAF Task 2 - what is your heat source

We replaced our old oil heating system with an air-to-water heat pump in 2019. We had decided on this type of heating to get away from oil. One part of the house is heated by radiator and the other part by floor heating. However, the difference between the two heat exchangers is noticeable. The floor heating is by far more effective. In the living room we also have a wood-burning stove that you can light in winter.

More...

IDAF - Showcase / The history of heating

The history of heating


For all of us, a heated apartment has become a matter of course. Especially in winter, we do not have to worry at all, because the latest technology always offers us a warm home. But the road to this goal was long and often arduous. New technologies with more efficient and cheaper fuels were tested again and again. In the end, climate protection also played an increasingly important role. This project deals with the eventful history of heating.

  • The beginnings of heating 
  • The first underfloor heating already existed in ancient times 
  • More safety and comfort through stoves and fireplaces 
  • From the oil crisis to ecological heating 

Are you aware of how much heating energy you use in your home? 

What is used for heating in Switzerland? 

What are the most modern heating technologies? 

Are there still outdated heating technologies from back then? 

Calculation

Experts and homeowners can also roughly calculate the heating capacity using guide values. These depend on the year of construction as well as the construction method of buildings and lead very quickly to initial results in practice. The following table shows how many kW of heating power are required per square metre of living space:

Baujahr               

bis 1958 

180 W/m² 

1959 bis 1068 

170 W/m² 

1969 bis 1973 

150 W/m² 

1974 bis 1977 

115 W/m² 

1978 bis 1983 

95 W/m² 

1984 bis 1994 

75 W/m² 

ab 1995 

60 W/m² 

 

Example calculation

A 150-square-metre detached house built in 1975 thus has a heating capacity of 17.25 kilowatts (150 square metres x 115 W/m² = 17,250 watts or 17.25 kW).

It is important to know, however, that the values given are only guide values. If old buildings have been renovated in the meantime to improve their energy efficiency, for example by insulating the exterior walls, the real values are usually lower. The heating output may then be lower.

Media

Taming the fire was one of the greatest achievements of the Stone Age. The centre of every family was the hearth, where people ate, cooked and worked. But how did the Stone Age people make fire?

For example, if you work a piece of pyrite violently with a flint, splinters jump off and ignite themselves. If they hit easily flammable material, they start to glow. Blow caPublishrefully and refeed with dry shavings - this is how a fire starts.

How to make fire

Sources

(1) Geschichte der Heizung (was-war-wann.de)
(2) Gesellschaft & Religion (srf.ch)
(3) Die Wärmepumpe (heliotherm.com)
(4) Vom Lagerfeuer zur Zentralheizung (fischerfutureheat.de)