Note that these coefficients are very rough. They depends on fluid velocities, viscosities, conditions of the heating surfaces, size of the temperature differences and so on. For exact calculations - always check manufacturing data.
A roughly estimate of the specific heat transmission in a copper heat exchanger with water (mean temperature 80 oC) on one side and air (mean temperature 20 oC) on the other side - where the overall heat transfer coefficient U is 13.1 W/(m2 K) - can be calculated as
q = (13.1 W/(m2 K)) ((80 oC) - (20 oC))
= 786 W/m2
≈ 750 - 800 W/m2
Steam and condensate pipes - heat loss uninsulated and insulated pipes, insulation thickness and more.
Heating systems - capacity and design of boilers, pipelines, heat exchangers, expansion systems and more.
Steam & condensate systems- properties, capacities, pipe sizing, systems configuration and more.
Thermodynamics of steam and condensate systems.
Work, heat and energy systems.
Arithmetic Mean Temperature Difference in Heat Exchangers - AMTD - and Logarithmic Mean Temperature Difference - LMTD - formulas with examples - Online Mean Temperature Calculator.
Heat transfer when steam condensates.
Convective air flows from typical heat sources like people, computers, radiators and more.
Heat transfer between a solid and a moving fluid is called convection. This is a short tutorial about convective heat transfer.
Heat fluxes for various cooling or heat transfer modes.
Heat loss from uninsulated copper pipes - dimensions ranging 1/2 - 4 inches.
Physical properties of Dowtherm A.
Boiling and freezing points of glycerine aqueous solutions.
Heat-transfer in heat exchangers are reduced by fouling.
Overall heat transfer coefficients in common heat exchanger designs - tubular, plate or spiral.
Walls or heat exchangers - calculate overall heat transfer coefficients.
Heat transfer coefficients for steam and hot water coils submerged in oil tanks.
Heat loss through common building elements due to transmission, R-values and U-values - imperial and SI units.
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