Sensible Heat Energy Calculator
Calculate sensible heat energy with transparent engineering inputs and the displayed formula.
Open calculator →WAVE 1 · ENGINEERING HUBDownload spreadsheet-compatible calculation register →Confirmed source Confirmed source Confirmed source Source being confirmed Source being confirmed Source being confirmed Source being confirmed Source being confirmed Source being confirmed Confirmed source Source being confirmed Source being confirmed Source being confirmed Confirmed source Confirmed source
Heat Transfer
Work through conduction, convection, radiation and heat-exchanger screening calculations while keeping boundary conditions and property assumptions visible.
Tool index
Only resources currently allowed by the Part 1 verification gate, Part 2 source policy and rollout flags appear here.
Plane Wall Conduction Calculator
Calculate plane wall conduction with transparent engineering inputs and the displayed formula.
Open calculator →Insulation Thickness from Heat Loss Calculator
Calculate insulation thickness from heat loss with transparent engineering inputs and the displayed formula.
Open calculator →Thermal Conductivity from Heat Flow Calculator
Calculate thermal conductivity from heat flow with transparent engineering inputs and the displayed formula.
Open calculator →Conduction Area Calculator
Calculate conduction area with transparent engineering inputs and the displayed formula.
Open calculator →Conduction Temperature Difference Calculator
Calculate conduction temperature difference with transparent engineering inputs and the displayed formula.
Open calculator →Convection Heat Transfer Calculator
Calculate convection heat transfer with transparent engineering inputs and the displayed formula.
Open calculator →Convection Coefficient Calculator
Calculate convection coefficient with transparent engineering inputs and the displayed formula.
Open calculator →Thermal Radiation Heat Transfer Calculator
Calculate thermal radiation heat transfer with transparent engineering inputs and the displayed formula.
Open calculator →Radiative Heat Flux Calculator
Calculate radiative heat flux with transparent engineering inputs and the displayed formula.
Open calculator →Emissivity from Radiation Calculator
Calculate emissivity from radiation with transparent engineering inputs and the displayed formula.
Open calculator →Heat Exchanger Duty Calculator
Calculate heat exchanger duty with transparent engineering inputs and the displayed formula.
Open calculator →Heat Exchanger Area Calculator
Calculate heat exchanger area with transparent engineering inputs and the displayed formula.
Open calculator →LMTD Calculator
Calculate lmtd with transparent engineering inputs and the displayed formula.
Open calculator →Overall Heat Transfer Coefficient Calculator
Calculate overall heat transfer coefficient with transparent engineering inputs and the displayed formula.
Open calculator →Learning path
- Identify the dominant heat-transfer mode and geometry.
- Define boundary temperatures and material/fluid properties.
- Calculate the simple mode relationship first.
- Combine thermal resistances only when their series/parallel structure is justified.
- Use equipment-specific correction factors and property data for final exchanger or insulation design.
Glossary
- Thermal conductivity
- A material property relating conductive heat flux to temperature gradient.
- Convection coefficient
- A proportionality coefficient relating convective heat flux to a surface-to-fluid temperature difference.
- Emissivity
- A dimensionless surface property used in thermal-radiation relationships, bounded between 0 and 1.
- Thermal resistance
- A representation of opposition to heat flow for a defined geometry and mode.
- Overall U-value
- An overall heat-transfer coefficient combining the modeled thermal resistances between two bulk streams or environments.
- LMTD
- Log-mean temperature difference used to represent the driving temperature difference in a steady heat exchanger.
- Heat flux
- Heat-transfer rate per unit area.
- Thermal diffusivity
- Thermal conductivity divided by volumetric heat capacity, describing transient temperature diffusion.
Worked examples
Examples are calculated from PROFENG's own tool defaults. Confirmed-source examples may be indexable; examples whose exact formula source remains pending stay noindex.
Sensible Heat Energy Calculator worked example
(100)*(4.186)*(20) = 8,372 kJ
Open worked example →Plane Wall Conduction Calculator worked example
(0.04)*(50)*(20)/(0.1) = 400 W
Open worked example →Insulation Thickness from Heat Loss Calculator worked example
(0.04)*(50)*(20)/(400) = 0.1 m
Open worked example →Thermal Conductivity from Heat Flow Calculator worked example
(400)*(0.1)/((50)*(20)) = 0.04 W/(m·K)
Open worked example →Conduction Area Calculator worked example
(400)*(0.1)/((0.04)*(20)) = 50 m²
Open worked example →Conduction Temperature Difference Calculator worked example
(400)*(0.1)/((0.04)*(50)) = 20 K
Open worked example →Convection Heat Transfer Calculator worked example
(15)*(10)*(25) = 3,750 W
Open worked example →Convection Coefficient Calculator worked example
(3750)/((10)*(25)) = 15 W/(m²·K)
Open worked example →Thermal Radiation Heat Transfer Calculator worked example
(0.9)*5.670374419e-8*(2)*(Math.pow((500),4)-Math.pow((300),4)) = 5,552.431 W
Open worked example →Radiative Heat Flux Calculator worked example
(0.9)*5.670374419e-8*(Math.pow((500),4)-Math.pow((300),4)) = 2,776.215 W/m²
Open worked example →Emissivity from Radiation Calculator worked example
(6000)/(5.670374419e-8*(2)*(Math.pow((500),4)-Math.pow((300),4))) = 0.973
Open worked example →Heat Exchanger Duty Calculator worked example
(500)*(20)*(30)/1000 = 300 kW
Open worked example →Heat Exchanger Area Calculator worked example
(300)*1000/((500)*(30)) = 20 m²
Open worked example →LMTD Calculator worked example
Math.abs((50)-(20))<1e-9?(50):((50)-(20))/Math.log((50)/(20)) = 32.741 K
Open worked example →Overall Heat Transfer Coefficient Calculator worked example
(300)*1000/((20)*(30)) = 500 W/(m²·K)
Open worked example →