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2. Pipe insulation - Wikipedia

   en.wikipedia.org/wiki/Pipe_insulation

   Insulated hot water supply and return hydronic piping on a gas-fired boiler. Since pipework can operate at temperatures far removed from the ambient temperature, and the rate of heat flow from a pipe is related to the temperature differential between the pipe and the surrounding ambient air, heat flow from pipework can be considerable.

3. R-value (insulation) - Wikipedia

   en.wikipedia.org/wiki/R-value_(insulation)

   The primary mode of heat transfer impeded by insulation is conduction, but insulation also reduces heat loss by all three heat transfer modes: conduction, convection, and radiation. The primary heat loss across an uninsulated air-filled space is natural convection, which occurs because of changes in air density with temperature. Insulation ...

4. ASHRAE Handbook - Wikipedia

   en.wikipedia.org/wiki/ASHRAE_Handbook

   An enhanced electronic version, known as ASHRAE Handbook Online is a web-based version updated annually that contains the four latest volumes as well as extra content such as calculations, demonstration videos, and spreadsheets. The various versions of the Handbook are typically available to the public via technical, and other, libraries and ...

5. Standing loss - Wikipedia

   en.wikipedia.org/wiki/Standing_loss

   Standing loss, or standing losses, is a non-technical term to define energy losses in a system, usually associated with heat and hot water storage systems.It is the amount of energy lost through heat transfer to the surrounding environment; as such it is directly related to how well insulated a system is.

6. Thermal insulation - Wikipedia

   en.wikipedia.org/wiki/Thermal_insulation

   Insulating these pipes using pipe insulation reduces energy into unoccupied rooms and prevents condensation from occurring on cold and chilled pipework. Pipe insulation is also used on water supply pipework to help delay pipe freezing for an acceptable length of time. Mechanical insulation is commonly installed in industrial and commercial ...

7. NTU method - Wikipedia

   en.wikipedia.org/wiki/NTU_Method

   The number of transfer units (NTU) method is used to calculate the rate of heat transfer in heat exchangers (especially parallel flow, counter current, and cross-flow exchangers) when there is insufficient information to calculate the log mean temperature difference (LMTD). Alternatively, this method is useful for determining the expected heat ...