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Namespace Prefixes

Prefix	IRI
n2	http://qudt.org/vocab/quantitykind/
dcterms	http://purl.org/dc/terms/
n4	http://qudt.org/vocab/unit/
n3	http://qudt.org/schema/qudt/
skos	http://www.w3.org/2004/02/skos/core#
n8	http://qudt.org/vocab/dimensionvector/
rdfs	http://www.w3.org/2000/01/rdf-schema#
n6	http://qudt.org/2.1/vocab/
rdf	http://www.w3.org/1999/02/22-rdf-syntax-ns#
xsdh	http://www.w3.org/2001/XMLSchema#

Statements

Subject Item

n2:HeatFlowRate

rdf:type

n3:QuantityKind

rdfs:label

Heat Flow Rate

rdfs:isDefinedBy

n6:quantitykind

skos:broader

n2:Power

dcterms:description

The rate of heat flow between two systems is measured in watts (joules per second). The formula for rate of heat flow is \(\bigtriangleup Q / \bigtriangleup t = -K \times A \times \bigtriangleup T/x\), where \(\bigtriangleup Q / \bigtriangleup t\) is the rate of heat flow; \(-K\) is the thermal conductivity factor; A is the surface area; \(\bigtriangleup T\) is the change in temperature and \(x\) is the thickness of the material. \(\bigtriangleup T/ x\) is called the temperature gradient and is always negative because of the heat of flow always goes from more thermal energy to less).

n3:applicableUnit

n4:BTU_TH-PER-MIN n4:BTU_TH-PER-HR n4:THM_US-PER-HR n4:KiloBTU_IT-PER-HR n4:BTU_TH-PER-SEC n4:KiloBTU_TH-PER-HR n4:TON_FG n4:KiloCAL_TH-PER-MIN n4:BTU_IT-PER-MIN n4:KiloCAL_TH-PER-SEC n4:KiloCAL_TH-PER-HR n4:CAL_TH-PER-MIN n4:BTU_IT-PER-SEC n4:CAL_TH-PER-SEC n4:MegaBTU_IT-PER-HR n4:BTU_IT-PER-HR n4:KiloCAL-PER-MIN n4:KiloCAL-PER-SEC

n3:expression

\(heat-flow-rate\)

n3:hasDimensionVector

n8:A0E0L2I0M1H0T-3D0

n3:informativeReference

http://en.wikipedia.org/wiki/Rate_of_heat_flow

n3:latexSymbol

\(\Phi\)