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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Nahme-Griffith number, Nakashima, CY Nanoparticles, for heat transfer augmentation, Naphthalene: Napthenes: National practice, in mechanical design, guide to, Natural convection: Natural draft cooling towers: Natural frequency of tube vibration in heat exchangers, Navier-Stokes equation, Neon: Neopentane: Net free area, in double-pipe heat exchangers, Netherlands, guide to national mechanical design practice, Networks, of heat exchangers, pinch analysis method for design of, Neumann boundary conditions, finite difference method, Nickel, thermal and mechanical properties Nickel alloys, Nickel steels, Niessen, R, Nitric oxide: Nitriles: Nitrobenzene: Nitro derivatives: Nitroethane: Nitrogen: Nitrogen dioxide: Nitrogen peroxide: Nitromethane: m-Nitrotoluene: Nitrous oxide Noise: Nonadecane: Nonadecene: Nonane: Nonene: Nonanol: Nonaqueous fluids, critical heat flux in, Non-circular microchannels: Noncondensables: Nondestructive testing, of heat exchangers Nongray media, interaction phenomena with, Nonmetallic materials: Non-Newtonian flow: Nonparticipating media, radiation interaction in, Nonuniform heat flux, critical heat flux with, Non-wetting surfaces, in condensation augmentation, North, C, No-tubes-in-window shells, calculation of heat transfer and pressure drop in, Nozzles:
design to ASME VIII, design to EN13445,
Shell-and-Tube Heat Exchanger Design to EN13445
design to PD5500 impinging jets from, heat transfer in, loads in, loss coefficients in, in shell-and-tube heat exchangers: constructional features
Nowell, D G, Nucleate boiling: Nuclear industry, fouling problems in, Nucleation: Nucleation sites: Nuclei, formation in supersaturated vapor, Number of transfer units (NTU): Numerical methods: Nusselt: Nusselt-Graetz problem, in laminar heat transfer in ducts, Nusselt number:

Index

HEDH
A B C D E F G H I J K L M N
Nahme-Griffith number, Nakashima, CY Nanoparticles, for heat transfer augmentation, Naphthalene: Napthenes: National practice, in mechanical design, guide to, Natural convection: Natural draft cooling towers: Natural frequency of tube vibration in heat exchangers, Navier-Stokes equation, Neon: Neopentane: Net free area, in double-pipe heat exchangers, Netherlands, guide to national mechanical design practice, Networks, of heat exchangers, pinch analysis method for design of, Neumann boundary conditions, finite difference method, Nickel, thermal and mechanical properties Nickel alloys, Nickel steels, Niessen, R, Nitric oxide: Nitriles: Nitrobenzene: Nitro derivatives: Nitroethane: Nitrogen: Nitrogen dioxide: Nitrogen peroxide: Nitromethane: m-Nitrotoluene: Nitrous oxide Noise: Nonadecane: Nonadecene: Nonane: Nonene: Nonanol: Nonaqueous fluids, critical heat flux in, Non-circular microchannels: Noncondensables: Nondestructive testing, of heat exchangers Nongray media, interaction phenomena with, Nonmetallic materials: Non-Newtonian flow: Nonparticipating media, radiation interaction in, Nonuniform heat flux, critical heat flux with, Non-wetting surfaces, in condensation augmentation, North, C, No-tubes-in-window shells, calculation of heat transfer and pressure drop in, Nozzles:
design to ASME VIII, design to EN13445,
Shell-and-Tube Heat Exchanger Design to EN13445
design to PD5500 impinging jets from, heat transfer in, loads in, loss coefficients in, in shell-and-tube heat exchangers: constructional features
Nowell, D G, Nucleate boiling: Nuclear industry, fouling problems in, Nucleation: Nucleation sites: Nuclei, formation in supersaturated vapor, Number of transfer units (NTU): Numerical methods: Nusselt: Nusselt-Graetz problem, in laminar heat transfer in ducts, Nusselt number:
O P Q R S T U V W X Y Z
N Nozzles: design to EN13445,
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Shell-and-Tube Heat Exchanger Design to EN13445

DOI 10.1615/hedhme.a.000420

4.3 SHELL-AND-TUBE DESIGN CODES
4.3.3 Design to EN 13445

R. Fawcett

A. General

(a) Introduction

EN 13445 (European Committee for Standardisation, 2002) is a new pressure vessel code (in this case also a “standard”) written to go with the European Pressure Equipment Directive (Directive 97/22/EC, 1997) that came into full force on May 22 2002.

It was put together over a period of 10 years by CEN Technical Committee TC54. Various sub-committees, made up of members from the national delegations, looked after the individual parts. While it does not have behind it the history of the well known national codes it was written by those same experts who are responsible for maintaining the various national codes across Europe. Bringing together different points of view and insights has the obvious potential disadvantage of “lowest common denominator” writing, but it also makes it possible to bring together good new methods for all to use. In general the intention has been to include the best available methods in the new standard. The design section is notable for new methods based on limit analysis for a number of components, especially flanges and tubesheets.

As is usual with pressure vessel codes and standards, it is intended to “update” EN 13445 regularly. Errors will be discovered and more material will be added. As will be seen, there are some important gaps, notably in materials of construction.

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