Project Haystack definitions for Internet of Things
baseUri | https://project-haystack.org/def/phIoT/ |
---|---|
def | phIoT |
doc | See above |
includes | lib:ph, lib:phScience |
is | lib |
lib | phIoT |
version | 3.9.2 |
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-pipe |
Pipe which conveys fluid |
f-tank |
Tank which stores fluid |
f-thermal-meter |
Meter to measure energy transfer via fluid |
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-q-point |
Point which measures or controls phenomenon |
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 |
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-f-pipe |
Pipe in equipment section |
s-pipe |
Pipe in equipment section |
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 |