Marmite norvégienne/en : Différence entre versions

Version actuelle datée du 9 août 2024 à 11:45

Prototype de Low-tech Lab | Catégories : Alimentation

Low-tech Lab

https://wiki.lowtechlab.org/wiki/Marmite_norv%C3%A9gienne/en

Dernière modification le 09/08/2024

Difficulté

Facile

Durée

1 heure(s)

Coût

10 EUR (€)

Description

The Norwegian Kettle allows for an extended period of passive cooking without supplying heat. THIS TUTORIAL IS A PROTOTYPE AND NEEDS TO BE GREATLY IMPROVED.

Difficulté

Facile

Durée

1 heure(s)

Coût

10 EUR (€)

Autres langues :

English • ‎español • ‎français

Sommaire

1 Description
2 Sommaire
3 Introduction
4 Video d'introduction
5 Étape 1 - Manufacturing stages
6 Étape 2 - Prepare the installation
7 Étape 3 - Construct the small box
8 Étape 4 - Construct the larger box
9 Étape 5 - Line the small box with the foil blanket
10 Étape 6 - Line the large box with the insulation
11 Étape 7 - Fit everything together
12 Étape 8 - Advice for use
13 Étape 9 - Educational content to download
14 Notes et références
15 Commentaires

Licence : Attribution-ShareAlike (CC BY-SA)

en fr 1

Introduction

Cooking is an incredibly inefficient process. The thermal efficiency varies from 13% for electric hot plates to 23% for gas hot plates and from 5% to 25% for open fires and biomass stoves. Stoves also cause increased pollution levels in the interior air space, particularly in developing countries but also in modern kitchens.

Low-tech solutions do exist for the improvement of these problems. Whilst we can see clear improvements through the use of a pressure cooker, these containers lose significant heat through their inner surfaces which are often poorly insulated or uninsulated. And there is still the problem of losses from heat transfer in the case where the low-tech insulating wrapper has not been used low-tech insulating skirt. But if the food contents are brought to their boiling point and the container placed in a well-insulated box, the heat losses are minimised and the cooking can continue without the addition of further energy.

This is the principle of the Norwegian Cooker, also known as a hay box. By analogy, one can compare this type of cooker with the concept of a passive house: that is a well-insulated building that requires only a little energy for heating or cooling.

Of course the energy economics depend on several factors: the material used for the insulation, the overall design of the cooking pot, the time required to cook the dish, the food and the speed with which it is transferred from the gas cooker to the cooking pot. According to the Partnership for Clean Indoor Air and their comparative test of 18 types of solid fuel stoves, there would be on average a 50% energy-saving from using a Norwegian Cooker.

Here we are going to integrate the Norwegian Cooker into a kitchen drawer

THIS TUTORIAL IS A PROTOTYPE AND NEEDS TO BE GREATLY IMPROVED. A MORE COMPLETE VERSION WILL BE AVAILABLE SOON.

Find in this report an analysis of the usage of the Norwegian Cooker as well as 11 other low tech. experiments throughout the project "In Search of a Sustainable Habitat"

Video d'introduction

Youtube

Matériaux

Wooden planks from wine boxes, palettes, plywood off-cuts, etc. ....
Nails
1 foil blanket
1 duvet for insulation
Assembly feet and screws

You get the idea

Other options for the insulating material

Blanket
Duvet
Eiderdown
Sleeping bag
Wool
Textiles (old pullovers, anoraks, towels, curtains...);
Cushions
Jute sacs
Hemp
Sawdust
Bark
Cork
Polystyrene
Foil blanket (survival blanket)
Straw, hay...
Glass wool
Banana leaves
...

Outils

If you already have containers, no need for tools!

If you want to make a hay box from wooden planks for example, you will need the usual tools:

Hammer
Screwdriver
Tape measure
Wood saw or appropriate choice for the selected material
Gloves
Safety glasses
Ruler
Scissors

Other possible tools

Wood glue
Set-square
Double sided Scotch tape
Stapler

Marmite_norv_gienne_Affiche_MarmiteNorvegienne_FR.pdf

Marmite_norv_gienne_Rapport_E3_MN_2020.pdf

Étape 1 - Manufacturing stages

1) Prepare the installation

2) Construct the small box

3) Construct the large box

4) Line the small box with the small blanket

5) Line the large box with insulation

6) Fit everything together

Étape 2 - Prepare the installation

The pot

1) Decide which cooking pot or casserole dish you will use for cooking in the Norwegian kettle

Measure the length, width and depth of the cooking pot

The location of the installation

3) Determine the location of your Norwegian kettle. If it is to be a kitchen drawer or a cupboard, measure the height, width and depth.

Validation

4) Confirm that the space between the two boxes is at least 10 cm so that they can be placed inside each other and that the thickness of the insulation will be sufficient.

Étape 3 - Construct the small box

Note: The small box must be at least 1 cm higher than the cooking pot and at least 4 cm wider or longer

1) Using either a wood saw or a jig saw cut the wooden planks using the measurements taken previously

2) Assemble the wooden planks using nails and a hammer

Planks for the small box

- 2 planks (1 cm taller than the cooking pot) x (4 cm longer than the cooking pot)

-2 planks (1 cm taller than the cooking pot) x (4 cm wider than the cooking pot)

- 1 or several planks (4 cm wider than the pot) x (4cm longer than the pot)

Étape 4 - Construct the larger box

1) Take measurements of the location

2) Take 1 cm off these measurements to ensure that the outer box can easily fit

3) Cut the planks using either a wood-saw or a jigsaw

Notes:

The large box must be adapted to the proposed location for the Hay Box, be larger (in length, height and width) than the small box by at least 10 cm to allow the fitting of an insulating blanket at least 5 cm thick on all sides

The bottom of the drawer can be used as the bottom of the box

4) Assemble the wooden planks using nails and a hammer

Planks for the large box

-2 planks (10 cm taller than the cooking pot) x (10 cm longer than the cooking pot)

- 2 planks (10 cm taller than the cooking pot) x (10 cm wider than the cooking pot)

- If you need a bottom for the box: one or more planks (10 cm wider than the the small box) x (10 cm longer than the small box)

Étape 5 - Line the small box with the foil blanket

1) Unfold the foil blanket and line the the small box with the silvered side of the blanket facing outwards because this reflects heat

Cutting Out

2) Place the cooking pot in the small box

3) Cover the cooking pot with the foil blanket

4) Determine the surplus amount of the foil blanket and cut so that there is not too great an excess

5) If necessary, staple or sellotape the foil blanket to the small box

Étape 6 - Line the large box with the insulation

Note : The goal is to make a cozy home for your pot so that it does not catch cold. The more insulation there is, the more heat the pot will retain.

Cutting Out

1) Place the duvet (or other insulating material) in the bottom of the large drawer

2) Place the small box inside

3) Fold the insulation on to the small box to estimate how much extra there is

4) Cut off the surplus insulation

Note To make a cover, it's possible to cut a square of insulation which is the size of the larger box

Make sure that the cooking pot is designed to allow complete closure so that there is no space in the insulation

Don't hesitate to try different insulating materials to assess which one performs the best

Étape 7 - Fit everything together

1) Pull out the drawer that will accommodate the cooking pot

2) Nest everything together

Étape 8 - Advice for use

Using the Norwegian cooking bot (Hay-box) is very simple

Bring your dish to boiling or the desired temperature on a normal hot-plate
Place it in the cooking pot and close it
The cooking time in the pot is on average 1/3 longer than on the stove; that might seem like a constraint but imagine all the things you can do whilst waiting, knowing that now you won't have to keep an eye on your pot in order to to stop over-cooking or burning

Étape 9 - Educational content to download

You can download an educational file created by Low-tech lab in the "files" tab of the tutorial (tab under the section Tools & Materials)

Notes et références

Another interesting tutorial video

Report about experiments performed by students at ENS3 on the Norwegian cooking pot

If We Insulate Our Houses, Why Not Our Cooking Pots? : Article from Low-tech Magazine about alternative cooking techniques. Some data is provided regarding the energy performance of cooking without external heat.

Hay boxes or Fireless Cookers

Traducción al español: Andrea Hernándiz López

Translation in English: Matthew Bowman

Commentaires

Draft

@@ Ligne 3 : / Ligne 3 : @@
 |Licences=Attribution-ShareAlike (CC BY-SA)
 |Description=The Norwegian Kettle allows for an extended period of passive cooking without supplying heat.
+THIS TUTORIAL IS A PROTOTYPE AND NEEDS TO BE GREATLY IMPROVED.
 |Area=Food
 |Type=Prototype
@@ Ligne 15 : / Ligne 16 : @@
 }}
 {{Introduction
-|Introduction=Cooking is an incredibly inefficient process. The thermal efficiency varies from 13% for electric hot plates to 23% for gas hot plates and from 5% to 25% for open fires and biomass ?stoves? Stoves also cause increased pollution levels in the interior air space, particularly in developing countries but also in modern kitchens with ?assisted? hearths.
+|Introduction=Cooking is an incredibly inefficient process. The thermal efficiency varies from 13% for electric hot plates to 23% for gas hot plates and from 5% to 25% for open fires and biomass stoves. Stoves also cause increased pollution levels in the interior air space, particularly in developing countries but also in modern kitchens.
-Low-tech solutions do exist  for the improvement of these problems. Whilst we can see clear improvements through the use of a pressure  cooker, these containers lose significant heat through their inner surfaces which are often poorly insulated or uninsulated.  And there is still the problem of losses from heat transfer  in the case where the low-tech insulating wrapper has not been used [insert link]. But if the food contents are brought to their boiling point and the container placed in a well-insulated box, the heat losses are minimised and the cooking can continue without the addition of further energy.
+Low-tech solutions do exist  for the improvement of these problems. Whilst we can see clear improvements through the use of a pressure  cooker, these containers lose significant heat through their inner surfaces which are often poorly insulated or uninsulated.  And there is still the problem of losses from heat transfer  in the case where the low-tech insulating wrapper has not been used [https://wiki.lowtechlab.org/wiki/jupe_isolante_pour_casserole low-tech insulating skirt]. But if the food contents are brought to their boiling point and the container placed in a well-insulated box, the heat losses are minimised and the cooking can continue without the addition of further energy.
 This is the principle of the Norwegian Cooker, also known as a hay box. By analogy, one can compare this type of  cooker with the concept of a passive house:  that is a well-insulated building that requires only a little energy for heating or cooling.
@@ Ligne 26 : / Ligne 27 : @@
 Here we are going to integrate the Norwegian Cooker into a kitchen drawer
-Find in  [https://lowtechlab.org/assets/files/rapport-experimentation-habitat-low-tech-low-tech-lab.pdf this report] an analysis of the usage of the Norwegian Cooker as well as 11 other low tech. experiments throughout the project "In Search of a Sustainable Habitat''
+THIS TUTORIAL IS A PROTOTYPE AND NEEDS TO BE GREATLY IMPROVED. A MORE COMPLETE VERSION WILL BE AVAILABLE SOON.
+'''Find in  [https://lowtechlab.org/assets/files/rapport-experimentation-habitat-low-tech-low-tech-lab.pdf this report] an analysis of the usage of the Norwegian Cooker as well as 11 other low tech. experiments throughout the project "In Search of a Sustainable Habitat" '''
 }}
 {{TutoVideo
@@ Ligne 36 : / Ligne 39 : @@
 |Material=*Wooden planks from wine boxes, palettes, plywood off-cuts, etc. ....
 *Nails
-* 1 protective cover [?check]
+* 1 foil blanket
 * 1 duvet for insulation
-*Pattes d'assemblages [?? ] and screws
+*Assembly feet and screws
 *A wooden box
@@ Ligne 72 : / Ligne 75 : @@
 *Cork
 *Polystyrene
-*Survival blanket
+*Foil blanket (survival blanket)
 *Straw, hay...
 *Glass wool
 *Banana leaves
 *...
-|Tools=If you already have containers, no need for tools!
+|Tools='''If you already have containers, no need for tools!'''
 If you want to make a hay box from wooden planks for example, you will need the usual tools:
@@ Ligne 108 : / Ligne 111 : @@
 ) Construct the large box
-) Add the protective cover to the small box
+) Line the small box with the small blanket
-) Add the insulation to the large box
+) Line the large box with insulation
 ) Fit everything together
 }}
 {{Tuto Step
-|Step_Title=<div class="mw-translate-fuzzy">
+|Step_Title=Prepare the installation
-) Prepare the installation
+|Step_Content='''The pot'''
-</div>
-|Step_Content="The pot"
 ) Decide which cooking pot or casserole dish you will use for cooking in the Norwegian kettle
@@ Ligne 124 : / Ligne 125 : @@
 Measure the length, width and depth of the cooking pot
-'"The location of the installation"'
+'''The location of the installation'''
 ) Determine the location of your Norwegian kettle. If it is to be a kitchen drawer or a cupboard, measure the height, width and depth.
-'"Validation"'
+'''Validation'''
 ) Confirm that the space between the two boxes is at least 10 cm so that they can be placed inside each other and that the thickness of the insulation will be sufficient.
@@ Ligne 136 : / Ligne 137 : @@
 {{Tuto Step
 |Step_Title=Construct the small box
-|Step_Content="Note": The small box must be at least 1 cm higher than the cooking pot and at least 4 cm wider or longer
+|Step_Content='''Note''': The small box must be at least 1 cm higher than the cooking pot and at least 4 cm wider or longer
 ) Using either a wood saw or a jig saw cut the wooden planks using the measurements taken previously
@@ Ligne 142 : / Ligne 143 : @@
 ) Assemble the wooden planks using nails and a hammer
-'"Planks for the small box"'
+'''Planks for the small box'''
 - 2 planks (1 cm taller than the cooking pot) x (4 cm longer than the cooking pot)
@@ Ligne 161 : / Ligne 162 : @@
 ) Take 1 cm off these measurements to ensure that the outer box can easily fit
-) Découper les planches à l'aide d'une scie à bois ou d'une scie sauteuse.
+) Cut the planks using either  a wood-saw or a jigsaw
-'''Remarque''' :
+'''Notes''':
-La grande boite doit être adaptée à l'emplacement où va être disposer la marmite norvégienne, être plus grande (en largeur, hauteur et longueur) que la petite caisse d'au moins 10 cm pour permettre la mise en place d'une couche d'isolant d'au moins 5 cm de chaque côté.
+The large box must be adapted to the proposed location for the Hay Box, be larger (in length, height and width) than the small box by at least 10 cm to allow the fitting of an insulating blanket at least 5 cm thick on all sides
-Le fond du tiroir peut faire office de fond de caisse.
+The bottom of the drawer can be used as the bottom of the box
-) Assembler les planches ensemble à l'aide de clous et d'un marteau
+) Assemble the wooden planks using nails and a hammer
-'''Planches obtenues pour la grande caisse''':
+'''Planks for the large box'''
-- 2 planches (hauteur du plat+10cm) x (longueur du plat + 10cm)
+-2 planks (10 cm taller than the cooking pot) x (10 cm longer than the cooking pot)
-- 2 planches (hauteur du plat+10cm) x (largeur du plat+10cm)
+- 2 planks (10 cm taller than the cooking pot) x (10 cm wider than the cooking pot)
--Si besoin pour le fond de caisse : 1 ou plusieurs planches (largeur de la petite boite + 10cm) x (longueur de la petite boite+10cm)
+- If you need a bottom for the box: one or more planks (10 cm wider than the the small box) x (10 cm longer than the small box)
 |Step_Picture_00=Marmite_norv_gienne_DSC_0202.JPG
 |Step_Picture_01=Marmite_norv_gienne_DSC_0131.JPG
 }}
 {{Tuto Step
-|Step_Title=Tapisser la petite caisse de la couverture de survie
+|Step_Title=Line the small box with the foil blanket
-|Step_Content=1) Déplier la couverture de survie et tapisser la petite boite avec la face argentée vers l'extérieur car c'est elle qui réfléchit la chaleur.
+|Step_Content=1) Unfold the foil blanket and line the the small box with the silvered side of the blanket facing outwards because this reflects heat
-'''Découpe'''
+'''Cutting Out'''
-) Placer le plat dans la petite caisse
+) Place the cooking pot in the small box
-) Refermer la couverture de survie sur votre plat
+) Cover the cooking pot with the foil blanket
-) Anticiper le surplus et découper la couverture de survie afin de ne pas être encombré par un surplus trop important lors de l'utilisation.
+) Determine the surplus amount of the foil blanket and cut  so that there is not too great an excess
-) Si besoin agrafer ou scotcher la couverture de survie à la petite caisse.
+) If necessary, staple or sellotape the foil blanket to the small box
 |Step_Picture_00=Marmite_norv_gienne_DSC_0177.JPG
 |Step_Picture_01=Marmite_norv_gienne_DSC_0190.JPG
 }}
 {{Tuto Step
-|Step_Title=Tapisser la grande caisse de l'isolant.
+|Step_Title=Line the large box with the insulation
-|Step_Content='''Remarque''' : Le but est de faire un foyer douillet à votre marmite pour qu'elle ne prenne pas froid. Plus il y a d'épaisseur d'isolant, plus la marmite conservera la chaleur.
+|Step_Content='''Note''' : The goal is to make a cozy home for your pot so that it does not catch cold. The more insulation there is, the more heat the pot will retain.
-'''Découpe'''
+'''Cutting Out'''
-) Placer la couette dans le fond de la grande caisse
+) Place the duvet (or other insulating material) in the bottom of the large drawer
-) Placer la petite caisse dedans
+) Place the small box inside
-) Replier la couette sur la petite boite afin d'estimer le surplus
+) Fold the insulation on to the small box to estimate how much extra there is
-) Découper le surplus.
+) Cut off the surplus insulation
-'''Remarque''' Pour faire office de couvercle il est possible de découper dans la chute de l'isolant un carré de la surface de la grande caisse pour optimiser l'isolation.
+'''Note''' To make a cover, it's possible to cut  a square of insulation which is the size of the larger box
-Prévoir dans le design de la marmite de pouvoir refermer complètement l'enceinte, de façon à ne pas laisser d'espace sans isolant.
+Make sure that the cooking pot is designed to allow complete closure so that there is no space in the insulation
-Ne pas hésiter à essayer différents isolants afin de déterminer lequel sera le plus performant.
+Don't hesitate to try different insulating materials to assess which one performs the best
 |Step_Picture_00=Marmite_norv_gienne_DSC_0204.JPG
 |Step_Picture_01=Marmite_norv_gienne_DSC_0208.JPG
 }}
 {{Tuto Step
-|Step_Title=Imbriquer le tout
+|Step_Title=Fit everything together
-|Step_Content=1) Sortir le tiroir qui accueillera la marmite norvégienne.
+|Step_Content=1) Pull out the drawer that will accommodate the cooking pot
-) Y imbriquer le tout.
+) Nest everything together
 |Step_Picture_00=Marmite_norv_gienne_DSC_0208.JPG
 }}
 {{Tuto Step
-|Step_Title=Conseil d'utilisation
+|Step_Title=Advice for use
-|Step_Content=L'utilisation de la marmite est très simple :
+|Step_Content=Using the Norwegian cooking bot (Hay-box) is very simple
-*  Portez votre plat à ébullition ou à température souhaitée sur une plaque classique;
+* Bring your dish to boiling or the desired temperature on a normal hot-plate
-*  Placez le dans la marmite et refermez la;
+*Place it in the cooking pot and close it
-*  La cuisson dans une marmite norvégienne est en moyenne 1/3 plus longue que sur le feu : cela peut passer comme une contrainte, mais imaginez tout ce que vous pouvez faire en attendant, en sachant que vous n'avez pas à surveiller votre plat de peur qu'il cuise trop ou brûle...
+*The cooking time in the pot is on average 1/3 longer than on the stove; that might seem like a constraint but imagine all the things you can do whilst waiting, knowing that now you won't have to keep an eye on your pot in order to to stop over-cooking or burning
 }}
 {{Tuto Step
-|Step_Title=Contenu pédagogique à télécharger
+|Step_Title=Educational content to download
-|Step_Content=Vous pouvez télécharger une fiche pédagogique créée par le Low-tech Lab  dans la partie "Fichiers" du tutoriel (onglet au niveau de la section "Outils-Matériaux")
+|Step_Content=You can download an educational file created by Low-tech lab in the "files" tab of the tutorial (tab under the section Tools & Materials)
 |Step_Picture_00=Marmite_norv_gienne_marmite.JPG
 }}
 {{Notes
-|Notes=*[http://www.marmite-norvegienne.com/ Un blog spécialisé sur la Marmite Norvégienne]
+|Notes=*[http://www.marmite-norvegienne.com/ A blog specialising in Norwegian Marmite]
+*[https://www.facebook.com/groups/1288015614945411 A group specialising in Norwegian Marmite]
-*[https://www.youtube.com/watch?v=yJJayCOW6Uc Autre vidéo tutoriel intéressante]
+*[https://www.youtube.com/watch?v=yJJayCOW6Uc Another interesting tutorial video]
-*[https://cloud.univ-grenoble-alpes.fr/index.php/s/GQtnBwfSDKm5ELy?path=%2F&openfile=268756629#pdfviewer Rapport d'expérimentation des étudiants de l'ENS3 sur la Marmite Norvégienne]
+*[https://cloud.univ-grenoble-alpes.fr/index.php/s/GQtnBwfSDKm5ELy?path=%2F&openfile=268756629#pdfviewer Report about experiments performed by students at ENS3 on the Norwegian cooking pot]
-*[http://www.lowtechmagazine.com/2014/07/cooking-pot-insulation-key-to-sustainable-cooking.html If We Insulate Our Houses, Why Not Our Cooking Pots?] : Article du Low-tech Magazine sur les techniques alternatives de cuisson. On retrouve quelques chiffres sur les performances énergétiques de la cuisson sans feu.
+*[http://www.lowtechmagazine.com/2014/07/cooking-pot-insulation-key-to-sustainable-cooking.html If We Insulate Our Houses, Why Not Our Cooking Pots?] : Article from Low-tech Magazine about alternative cooking techniques. Some data is provided regarding the energy performance  of cooking without external heat.
 *[http://www.rootsimple.com/2011/12/hay-boxes-or-fireless-cookers/ Hay boxes or Fireless Cookers]
-*[http://www.treehugger.com/sustainable-product-design/wonderbag-electricity-free-slow-cooker.html The Wonderbag]
+Traducción al español: Andrea Hernándiz López
+Translation in English: Matthew Bowman
+<br />
 }}
 {{PageLang
 }}
 {{Tuto Status
-|Complete=Published
+|Complete=Draft
 }}
 {{Separator}}