Computer program for cryogenic piping systems

Li Zhang, Kaufui Wong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A computer program has been developed to evaluate piping systems in which cryogens are used as the fluid medium. It covers general piping systems (series, parallel, and series-parallel network) with typical cryogens (hydrogen, helium, nitrogen, oxygen, argon, and methane) in the temperature range from 2 K to 400 K and the pressure range from 0 bar to 1,200 bar. With data on thermodynamic and transport properties of cryogens, the calculated results show a significant difference between using constant cryogenic properties and updated cryogenic properties. This program is probably the first of its kind in the public domain that accounts for variable cryogenic properties. It indicates that for some cryogens, such as hydrogen, helium, and argon, using constant fluid properties in piping system calculations will create non-negligible errors in the results of pressure drop, flow rate, and pipe diameter. This program advises when constant cryogenic properties are adequate and when their variability must be taken into account. This program, which could update cryogenic properties, is recommended for the calculation and design of cryogenic piping systems.

Original languageEnglish (US)
Title of host publicationASHRAE Transactions
PublisherASHRAE
Pages295-299
Number of pages5
Volume100
Edition2
StatePublished - 1994
Externally publishedYes
EventProceedings of the ASHRAE Annual Meeting - Orlando, FL, USA
Duration: Jun 25 1994Jun 29 1994

Other

OtherProceedings of the ASHRAE Annual Meeting
CityOrlando, FL, USA
Period6/25/946/29/94

Fingerprint

Piping systems
Cryogenics
Computer program listings
Helium
Argon
Hydrogen
Fluids
Methane
Transport properties
Pressure drop
Nitrogen
Thermodynamic properties
Pipe
Flow rate
Oxygen

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Zhang, L., & Wong, K. (1994). Computer program for cryogenic piping systems. In ASHRAE Transactions (2 ed., Vol. 100, pp. 295-299). ASHRAE.

Computer program for cryogenic piping systems. / Zhang, Li; Wong, Kaufui.

ASHRAE Transactions. Vol. 100 2. ed. ASHRAE, 1994. p. 295-299.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zhang, L & Wong, K 1994, Computer program for cryogenic piping systems. in ASHRAE Transactions. 2 edn, vol. 100, ASHRAE, pp. 295-299, Proceedings of the ASHRAE Annual Meeting, Orlando, FL, USA, 6/25/94.
Zhang L, Wong K. Computer program for cryogenic piping systems. In ASHRAE Transactions. 2 ed. Vol. 100. ASHRAE. 1994. p. 295-299
Zhang, Li ; Wong, Kaufui. / Computer program for cryogenic piping systems. ASHRAE Transactions. Vol. 100 2. ed. ASHRAE, 1994. pp. 295-299
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