Units of Heat Transfer - Maple Programming Help

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Units of Heat Transfer

Description

 • Heat transfer has the dimension mass per time cubed thermodynamic temperature. The SI composite unit of heat transfer is the kilogram per second cubed kelvin.
 • Maple knows the units of heat transfer listed in the following table.

 Name Symbols Context Alternate Spellings Prefixes Ufactor standard * Ufactors USI @ SI

 An asterisk ( * ) indicates the default context, an at sign (@) indicates an abbreviation, and under the prefixes column, SI indicates that the unit takes all SI prefixes, IEC indicates that the unit takes IEC prefixes, and SI+ and SI- indicate that the unit takes only positive and negative SI prefixes, respectively.  Refer to a unit in the Units package by indexing the name or symbol with the context, for example, tog[standard]; or, if the context is indicated as the default, by using only the unit name or symbol, for example, tog.
 The units of heat transfer are defined as follows.
 A standard U factor is defined as $1$ international table Btu per hour square foot degree Fahrenheit.
 An SI U factor (USI) is defined as $1$ watt per square meter kelvin.

Examples

 > $\mathrm{convert}\left('\mathrm{Ufactor}','\mathrm{dimensions}','\mathrm{base}'=\mathrm{true}\right)$
 $\frac{{\mathrm{mass}}}{{\mathrm{thermodynamic_temperature}}{}{{\mathrm{time}}}^{{3}}}$ (1)
 > $\mathrm{convert}\left(1,'\mathrm{units}','\mathrm{Ufactor}','\mathrm{USI}'\right)$
 $\frac{{52752792631}}{{9290304000}}$ (2)
 > $\mathrm{convert}\left(1,'\mathrm{units}','\mathrm{USI}',\frac{'\mathrm{kg}'}{{'s'}^{3}'K'}\right)$
 ${1}$ (3)