def

fluid

Liquid or gas

meta

supertypes

marker

Marker labels a dict with typing information

    phenomenon

Aspect of scientific interest with measurable quantities

        substance

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

subtypes

gas

Substance with neither definite volume nor shape

    air

The mixture of gases which surrounds the earth

    naturalGas

Fossil fuel energy source consisting largely of methane and other hydrocarbons

    steam

Water in its gas form

liquid

Substance with definite volume but takes the shape of its container

    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 used for HVAC cooling

        condenser-water

Water used used to remove heat through condensation

        domestic-water

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

        hot-water

Hot water used for HVAC heating or supply to hot taps

        makeup-water

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

refrig

Fluid used in refrigeration and heat exchange

quantities

flow

Measure of volumetric flow of fluid

level

Fill level of a vessel containing a fluid where 0% is empty and 100% is filled

pressure

Measure of force applied

temp

Temperature - measure of hot and cold