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 language | English (US) |
|---|---|
| Title of host publication | ASHRAE Transactions |
| Publisher | ASHRAE |
| Pages | 295-299 |
| Number of pages | 5 |
| Volume | 100 |
| Edition | 2 |
| State | Published - 1994 |
| Externally published | Yes |
| Event | Proceedings of the ASHRAE Annual Meeting - Orlando, FL, USA Duration: Jun 25 1994 → Jun 29 1994 |
Other
| Other | Proceedings of the ASHRAE Annual Meeting |
|---|---|
| City | Orlando, FL, USA |
| Period | 6/25/94 → 6/29/94 |
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ASJC Scopus subject areas
- Fluid Flow and Transfer Processes
Cite this
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 proceeding › Conference contribution
}
TY - GEN
T1 - Computer program for cryogenic piping systems
AU - Zhang, Li
AU - Wong, Kaufui
PY - 1994
Y1 - 1994
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=0028713960&partnerID=8YFLogxK
M3 - Conference contribution
VL - 100
SP - 295
EP - 299
BT - ASHRAE Transactions
PB - ASHRAE
ER -