Inches to pixels online converter: Converter Inches to pixels and vice versa. Conversion formulas Inches to Pixel: px = 96* In. In = px / 96. where: px: Pixel. In: Inches. Pixel Definition: Definition of Pixel provided by WikiPedia: In digital imaging, a pixel, pel,[1] dots, or picture element[2] is a physical point in a raster image, or the smallest addressable element…
Cm to pixels online converter: Converter Cm to pixels and vice versa. Conversion formulas Centimeter to Pixel: px = 37.7952755906* Cm. Cm= px / 37.7952755906. where: px: Pixel. Cm : Centimeter. Pixel Definition: Definition of Pixel provided by WikiPedia: In digital imaging, a pixel, pel,[1] dots, or picture element[2] is a physical point in a raster image, or the smallest…
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Piping, Plumbing Abbreviation
As isometric piping drawing become denser in information and crowded with compound, the piping engineer start to use piping abbreviations in the design work to reduce the space requirement of the callout of the fitting or in the note section of the mechanical piping drawing. The list below includes most of the piping abbreviation used…
Use our online Log Mean Temperature Difference Calculator: LMTD Formula: LMTD = [ΔT1- ΔT2]/[lnΔT1 / lnΔT2 ] where ΔT1 and ΔT2 as defined below for the LMTD counter-current flow and LMTD parallel flow: LMTD Counter-current flow exchanger LMTD Parallel flow Exchanger We used the equations shown above in our calculator Log Mean Temperature Difference Calculator. Why…
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Dimensionless Numbers in Heat Transfer
Biot number (Bi) The Biot number, Bi is dimensionless, which is ratio between of the internal and external resistance. where h is the average heat Transfer coeficient. L length dimention, The ratio between the volume and the surface area. k thermal conductivity. Drag coefficient (Cf) The drag coefficient is the ratio of surface shear stress…
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Prandtl Number of Water
Prandtl number of water Pr = μ cp / k Where: cp : specific heat, (SI units: J/kg·K). μ : dynamic viscosity, (SI units: Pa s = N s/m2). k : thermal conductivity, (SI units: W/m·K). The specific Heat, dynamic viscosity and the thermal conductivity required for the calculation of Prandtl number of the water were calculated…