lib

lib:phIoT

Project Haystack definitions for Internet of Things

meta

terms

absorption

Cooling process using energy from heat source such as hot water

ac

Relating to alternating current electricity

ac-elec

Alternating current electricity

ac-freq

Frequency of alternating current

active

Working, operative, effective

active-power

Active power or real power

ahu

Air handling unit

ahu-chilledWaterCooling

Cooling using transfer of heat to chilled water

ahu-dxCooling

Cooling using refrigerant vapar expansion and compression

ahu-elecHeating

Heating by the conversion of electrical energy

ahu-gasHeating

Heating by the combustion of natural gas

ahu-hotWaterHeating

Heating using energy of hot water

ahu-steamHeating

Heating using energy of steam

ahuCoolingProcess

Method used to cool air for conditioning spaces

ahuHeatingProcess

Method used to heat air for conditioning spaces

ahuRef

AHU which supplies air to an equipment or space

ahuZoneDelivery

AHU delivery method of conditioned air to the zone

airCooling

Cooling by dissipating heat into the surrounding air

apparent-power

Apparent power is perceived magnitude of power due to the combination of active and reactive power

area

Area of a shape or floor space

barometric

Relating atmospheric pressure

battery

Device used to store electric energy

blowdown

Removal from container or pipe

blowdown-water

Water expelled from a system to remove mineral build up

boiler

Boilers generate hot water or steam for heating

boiler-gasHeating

Heating by the combustion of natural gas

boiler-oilHeating

Heating by the combustion of fuel oil

boilerHeatingProcess

Method used to heat water in a boiler

building

Site which is a building

bypass

Pipe used to bypass an equipment

centrifugal

Compression via a continuous flow of fluid through an impeller

chilled

Cooled

chilled-water

Water used for HVAC cooling

chilled-water-plant

Plant used to generate chilled water for cooling

chilledBeamZone

AHU supplies air to chilled beam terminal units

chilledWaterCooling

Cooling using transfer of heat to chilled water

chilledWaterPlantRef

Plant which supplies chilled water to the entity

chiller

Device to remove heat via a vapor compression or an absorption refrigeration cycle

chiller-absorption

Cooling process using energy from heat source such as hot water

chiller-airCooling

Cooling by dissipating heat into the surrounding air

chiller-centrifugal

Compression via a continuous flow of fluid through an impeller

chiller-condenserCooling

Removal of heat through the process of water condensation

chiller-reciprocal

Piston compressor driven by a crankshaft

chiller-rotaryScrew

Rotary screw compression

chillerCoolingProcess

Processed used to remove heat from refrigerant

chillerMechanism

Primary mechanism of chiller

closedLoop

Working fluid is kept separate from fluid used for heat transfer into the atmosphere

cmd

Point is a command, actuator, AO/BO

coldDeck

Duct carries air for cooling

condenser

Device or related to process of condensation

condenser-water

Water used used to remove heat through condensation

condenserCooling

Removal of heat through the process of water condensation

conduit

Duct, pipe, or cable to convey a substance or phenomenon

conveys

What type of substance or phenomenon conveyed by a conduit

cooling

Associated with a cooling process

cooling-process

Processed used to cool a substance

coolingCapacity

Measurement of a chiller ability to remove heat measured

coolingLoop

Open or closed loop

coolingOnly

Device without heating

coolingOnly-vav

Cooling only VAV without fan or reheat

coolingTower

Device used to transfer waste heat into the atmosphere

cur

Related to a current value

cur-point

Point with support to report a "real-time" current value

curErr

Error description when curStatus indicates error condition

curStatus

Status of point's current value reading

curVal

Current value of a point

current-angle

AC current phase angle

current-imbalance

Current phase imbalance in a multiphase AC system

current-magnitude

Magnitude of electrical current

current-thd

Total harmonic current distortion

dc

Relating to direct current electricity

dc-elec

Direct current electricity

directZone

AHU supplies air directly to the zone

discharge

Duct with air leaving an equipment

domestic

For human use

domestic-water

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

dualDuct

Two ducts

duct

Conduit used to convey air for HVAC

ductConfig

Ductwork configuration

ductDeck

Cold, hot, or neutral deck

ductSection

Equipment section of ductwork

dxCooling

Cooling using refrigerant vapar expansion and compression

elec-meter

Electricity meter

elecHeating

Heating by the conversion of electrical energy

entering

Pipe conveys fluid into an equipment

equip

Equipment asset

equipRef

Reference to equip which contains this entity

exhaust

Duct used to expel air back outside

f-flow-meter

Meter to measure flow rate and total volume of fluid f

f-pipe

Pipe which conveys fluid f

f-tank

Tank which stores fluid f

f-thermal-meter

Meter to measure energy transfer via fluid f

fanPowered

Device with a fan

fanPowered-vav

VAV contains a fan with reheat

floor

Storey of a building

flow-meter

Meter to measure flow rate and total volume of fluid

fuelOil

Petroleum based oil burned for energy

gasHeating

Heating by the combustion of natural gas

gasoline

Petroleum derived liquid used as a fuel source

heatExchanger

Device used to transfer heat between two fluids

heating

Associated with a heating process

heating-process

Processed used to heat a substance

his

Related to historization of data

his-point

Historized point with a history log of timestamp/value pairs

hisErr

Error description when hisStatus indicates error condition

hisMode

Indicates the way that history data is collected for a point

hisStatus

Status of point's history collection or synchronization

hisTotalized

Indicates values which are a continuous stream of totalization

hot

Having high degree of heat

hot-water

Hot water used for HVAC heating or supply to hot taps

hot-water-boiler

Boiler which outputs hot water

hot-water-plant

Plant used to generate hot water for heating

hotDeck

Duct carries air for heating

hotWaterHeating

Heating using energy of hot water

hotWaterPlantRef

Plant which supplies hot water to the entity

hvac

Heating, ventilation, and air conditioning

hvac-zone-space

Zone related to conditioning of a space's air temperature and quality

imbalance

Lacking balance

inlet

Duct with air entering an equipment

inputs

Input to a process, usually energy source

leaving

Pipe conveys fluid out of an equipment

lighting

Systems associated with illumination in the built environment

lighting-zone-space

Zone related to lighting system

makeup

Restore soemthing missed or lost

makeup-water

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

meter

Equipment to meter a substance or electricity

meterSphere

Classifies a meter as a main site meter or submeter

mixed

Duct where fresh outside and return air is mixed together

multiZone

AHU discharge air is split into a duct per zone

naturalGas

Fossil fuel energy source consisting largely of methane and other hydrocarbons

neutralDeck

Duct carries air which by-passes both heating and cooling coils

oilHeating

Heating by the combustion of fuel oil

openLoop

Uses working fluid itself for evaporation into the atmosphere

outputs

Output of a process

outside

Duct to access fresh outside air

p-point

Point which measures or controls phenomenon p

p-q-point

Point which measures or controls phenomenon p and quantity q

parallel

Circuit with multiple paths of flow

pf

Electrical power factor

pipe

Conduit used to convey a fluid

pipeSection

Equipment section of piping

plant

Central plant used to generate a substance for a process

point

Data point such as a sensor or actuator

pointKind

Point value type

pointType

Classifies the point as a sensor, command, or setpoint

pressureDependent

VAV damper modulates to control space temp

pressureIndependent

VAV damper or a control valve that modulates to maintain desired flow setpoint

primaryFunction

Primary function of building as US Energy Star key

process

Industrial or HVAC process

q-point

Point which measures or controls quantity q

reactive

Relating to reactance

reactive-power

Reactive power or imaginary power

reciprocal

Piston compressor driven by a crankshaft

refrig

Fluid used in refrigeration and heat exchange

return

Duct returning air back to equipment

room

Enclosed room of a building

rotaryScrew

Rotary screw compression

s-duct

Duct in equipment section s

s-f-pipe

Pipe in equipment section s which conveys fluid f

s-pipe

Pipe in equipment section s

sensor

Point is a sensor, input, AI/BI

series

Circuit with single path of flow

singleDuct

One single duct

site

Site is a geographic location of the built environment

siteMeter

Main meter for the associated site

siteRef

Site which contains the entity

sp

Point is a setpoint, soft point, internal control variable, schedule

space

Space is a three-dimensional volume in the built environment

spaceRef

Reference to space which contains this entity

steam-boiler

Boiler which outputs steam

steam-plant

Plant used to generate steam for heating

steamHeating

Heating using energy of steam

steamPlantRef

Plant which supplies steam to the entity

stores

What is stored by an equipment

submeter

Submeters measure usage of a sub-system or equipment within a site

tank

Tank used to store a substance for temporary holding

thd

Total harmonic distortion

thermal

Related to energy of heat

thermal-meter

Meter to measure energy transfer via fluid

tripleDuct

Three ducts

vav

Variable air volume terminal unit

vav-elecHeating

Heating by the conversion of electrical energy

vav-hotWaterHeating

Heating using energy of hot water

vav-parallel

VAV pulls air from outside the primary air flow

vav-series

VAV pulls air from the primary air flow

vav-steamHeating

Heating using energy of steam

vavAirCircuit

How does the VAV pull in air

vavModulation

How does VAV modulate the temp based on duct pressure

vavReheat

Method used by VAV to reheat air

vavZone

AHU supplies air to VAV terminal units

volt-angle

AC voltage phase angle

volt-imbalance

AC voltage phase imbalance

volt-magnitude

Magnitude of electrical voltage

weatherStation

Weather station

wire

Cabling used to convey electricity

writable

Related to data which can written

writable-point

Point with writable output using 16-level priority array

writeErr

Error description when writeStatus indicates error condition

writeLevel

Current priority level for writeVal as number between 1 and 17

writeStatus

Current status of a writable point output

writeVal

Current desired value to write to output

yearBuilt

Original year of construction as four digit year such as 1980

zone

Related to spaces from a system perspective

zone-space

Space associated with a specific system