Environment

Acids - pH Values

Some common acids as sulfuric, acetic and more

Air Properties

Temperature, density, specific heat, thermal conductivity, expansion coefficient, kinematic viscosity and Prandtl's number for temperatures ranging -150 - 400 ^oC

Bases - pH Values

Some common bases as sodium hydroxide, ammonia and more

Beaufort Wind Scale

The Beaufort description and observation of wind and wind velocity

Bio Fuels - Energy Content

Common bio fuels and their energy content

Biocides and Effectiveness

Effectiveness against bacteria, fungi and algae

Biogas - Carbon Nitrogen Ratios for various Materials

Carbon - Nitrogen ratios for materials actual for biogas production

Biogas - Potential Production from Animals

Potential biogas production from animals

Biogas - Typical Composition

Typical composition of biogas produced from household waste

Biomass Energy

Units of biomass energy - converting values

Sponsored Links

Capacitors - Energy Stored

Energy stored and potential power generated from capacitors

Carbon Monoxide - Health Effects

Exposure health effects of Carbon Monoxide - CO

Combustion Fuels - Carbon Dioxide Emission

Environmental emission of carbon dioxide CO₂ when combustion fuels like coal, oil, natural gas, LPG and bio energy

Earthquake Scales

Earthquake Scales - Richter Magnitude, Moment Magnitude and Mercalli Intensity

Energy Balance and Energy Ratio

Energy balance and energy payback ratio

Ethanol Bio Fuel - Raw Materials

Ethanol Bio-fuel production from common raw materials

Food and Foodstuff - pH Values

Approximate pH values for some common food products as apples, butter, wines and more ..

Fossil Fuels - Energy Content

Convert between common fossil fuels units

Fuels Combustion - Nitrogen Oxides (NO_x) Emission

Emission of Nitrogen Oxides - NO_x - when combustion fuels like oil, coal, propane and more

Fujita-Pearson Tornado Intensity Scale

Scale for rating tornado intensity

Glazing Materials - Optical Properties

Optical properties of some commonly used glazing materials

Hurricane Intensity Scale

Saffir-Simpson damage potential scale for hurricanes

Hydropower

Water - power, head and flow rate

Ice - Thermal Properties

Thermal and thermodynamic properties of ice - density, thermal conductivity and specific heat at temperatures from 0 to -100 ^oC

Refrigerants - Environment Properties

Refrigerants - Ozone Depletion (ODP) and Global Warming Potential (GWP)

Salinity of Water

Water salinity of fresh, brackish and sea water

Solar Radiation through Windows

Sun heat through windows

Sun Charts

Online solar chart creator

Surface Solar Radiation

Daily total solar surface energy

US Heating Degree-Days

Standard and industrial heating degree-days

Water - Thermal Properties

Thermal properties of water - density, freezing temperature, boiling temperature, latent heat of melting, latent heat of evaporation, critical temperature and more

Water Content Soil

Water content - moisture content - of soil

Wind Chill Index or 'chilled' temperature of air in movement - the wind chill index

The cooling or

Wind Energy

Available wind energy

Wind Power

Power generated from the wind

Wind Shear

Wind is slowed down at the surface by trees and obstructions

Wind Turbine Power Calculator

Online wind turbine calculator