Thermal transmittance coefficients (lambda) of Terra Cotta This article is part of a general article on the Lambda thermal transmission coefficients given in W / mK Terracotta nominal density 1000 0.34 Terracotta nominal density 1100 0.38 Terracotta nominal density 1200 0.41 Terracotta nominal density 1300 0.46 Terracotta […]
Month: September 2007
Insulation of plaster and plasterboard
Coefficients of thermal transmission (lambda) of plaster and plasterboard (plasterboard, gyproc, etc.) This article is part of a general article on Lambda thermal transmission coefficients given in W / mK Plaster Standard plasterboard 0.25 Plaster Placo-plaster fire stop 0.25 High hardness plaster by vol. 800 0.30 High hardness plaster by vol. 600 0.18 High plaster […]
Insulating power of concrete (cellular, reinforced, special ...)
Thermal transmittance (lambda) coefficients of concrete This article is part of a general article on Lambda thermal transmittance coefficients given in W / mK Bauge 1.1 Cavernous concrete 1.35 Cavernous concrete of expanded clay 0.33 Bonded cellular concrete mass vol. 400 0.16 Bonded cellular concrete mass vol. 450 0.17 Aerated concrete bonded mass vol. 500 0.18 […]
Thermal insulation of natural stones
Thermal transmittance coefficients (lambda) of natural stones This article is part of a general article on Lambda heat transmittance coefficients given in W / mK Andesite 1.1 Slate 2.2 Basalt 1.6 Gneiss 3.5 Granite 2.8 Sandstone (silica) 2.3 Calciferous sandstone 1.9 Sandstone quartzose 2.6 Lava 0.55 Marble 3.5 Grindstone 1.8 Hard stone 1.7 Firm stone […]
Thermal transmission coefficients of insulating materials
Properties of common insulating materials Key words: insulation, insulators, insulator, materials, property, performance, performance, lambda coefficient, calculation, losses, loss, heat balance… All lambda values are given in W / (mK) Calculation of thermal resistance of a wall or a wall The thermal resistance is given by the following formula: R = e / lambda With e = thickness of […]
Taxation, taxation and cost of petroleum fuels: TIPP and VAT
Everyone knows that petroleum fuels are heavily taxed. But what exactly are the weight and nature of these taxes and how are the different costs of a liter of fuel distributed? This article attempts to answer this question briefly. On the basis of one liter of petroleum fuel sold for € 1,02, here is what […]
Download: Specifications Carver One, hybrid car-bike
Main features of the Carver One, hybrid Auto-Moto, which could have made a good eco-vehicle if the engine was chosen wisely. Download the file (a subscription to the Newsletter may be required): Technical characteristics of the Carver One, hybrid motorcycle
Download: Kager Water and Hydrogen Torch
Newspaper article on a water electrolysis torch developed in the 70s by Kager. This device (like its competitors) has never had commercial success. The water torch burner on the forums Download the file (Newsletter subscription may be required): Water and hydrogen torch by Kager
Mobility Week: Move differently!
“Move Otherwise! », Here is the message of the government campaign as part of the eco-responsibility week aiming to develop and / or promote professional travel by favoring walking, cycling, public transport, co- carpooling… Knowing that the annual cost of a private car (6000 euros) is almost 20 times higher […]
Download: E85 SuperEthanol and flex-fuel car: Engine modifications of the Renault Megane
General internal changes made to a Flex fuel vehicle compared to a gasoline vehicle. Download the file (a subscription to the Newsletter may be required): E85 SuperEthanol and flex-fuel car: Engine modifications of the Renault Megane