def

phenomenon

Aspect of scientific interest with measurable quantities

meta

supertypes

marker

Marker labels a dict with typing information

subtypes

elec

Associated with electricity or with electrical force, power, or energy

    ac-elec

Alternating current electricity

    dc-elec

Direct current electricity

light

Electromagnetic radiation in the visible spectrum

solar

Relating to energy from the sun

substance

Matter in one the three states solid, liquid, or gas

    biomass

Plant or animal material used as fuel to produce electricity or heat

    fluid

Liquid or gas

        gas

Substance with neither definite volume nor shape

            air

The mixture of gases which surrounds the earth

            ch2o

Formaldehyde (CH₂O)

            ch4

Methane (CH₄)

            co

Carbon monoxide (CO)

            co2

Carbon dioxide (CO₂)

            hfc

Hydrofluorocarbons

            n2o

Nitrous oxide (N₂O)

            naturalGas

Fossil fuel energy source consisting largely of methane and other hydrocarbons

            nf3

Nitrogen trifluoride (NF₃)

            nh3

Ammonia (NH₃)

            no2

Nitrogen dioxide (NO₂)

            o2

Oxygen (O₂) - the common dioxygen allotrope in the air

            o3

Ozone (O₃)

            pfc

Perfluorocarbons

            propane

By-product of natural gas processing and petroleum refining (C₃H₈)

            sf6

Sulphur hexafluoride (SF₆)

            steam

Water in its gas form

            tvoc

Total volatile organic compound (TVOC)

        liquid

Substance with definite volume but takes the shape of its container

            condensate

Liquid phase produced by the condensation of steam or other gas

            diesel

Liquid fuel specifically designed for use in diesel engines

            fuelOil

Petroleum based oil burned for energy

            gasoline

Petroleum derived liquid used as a fuel source

            water

Water in its liquid form

                blowdown-water

Water expelled from a system to remove mineral build up

                chilled-water

Water cooled for use in HVAC and industrial processes

                cold-water

Water supplied to cold taps

                condenser-water

Water used used to remove heat through condensation

                cool-water

Relatively cool water without active chilling

                domestic-water

Tap water for drinking, washing, cooking, and flushing of toilets

                ground-water

Water present under the ground or from a well

                hot-water

Hot water used for HVAC heating or supplied to hot taps

                makeup-water

Water used used to makeup water loss through leaks, evaporation, or blowdown

                purge-water

Water expelled from a system to remove contaminants

                warm-water

Relatively warm water without active heating

        refrig

Fluid used in refrigeration and heat exchange

    solid

Substance with definite shape and volume

        coal

Combustible sedimentary rock

        ice

Water in its solid form

        pm01

Particulate matter 0.1

        pm10

Particulate matter 10

        pm25

Particulate matter 2.5

weather

Associated with atmospheric air or phenomenon

wind

Flow of air on surface of the Earth