HEALTH & SAFETY
New design facility for safer oil and gas operations Understanding depressurising
H
oneywell Process Solutions (HPS) has announced a key enhancement to its UniSim
design and simulation software designed to help manufacturing facilities improve safety and reduce capital expenditures for both new and existing installations. The new UniSim Design Blowdown
Utility, designed specifically for oil and gas, petrochemical and chemical industry applications assists in designing systems to allow for safe depressurisation of process equipment. It also helps companies manage capital costs by more accurately selecting the right construction materials and blowdown system sizes needed for the site.
behaviour in a blowdown system is critical to the function of the system and ultimately the safety of the facility and employees. Rapid depressurising and gas expansion can result in very low temperatures, potentially putting equipment at risk of brittle fracture if the construction material goes below its ductile-brittle transition temperature. In addition, the entire pressure relief system, including safety valves, relief orifices, flare piping and knockout drums, must be sufficiently sized to handle the flowrates that occur during blowdown, in addition to the piping and capacity of the flare system. For new constructions, an accurate prediction of the minimum vessel
wall temperature during blowdown is important for the selection of the appropriate construction material, for the elimination of overdesign and with the additional benefit of lowering project costs. Similarly, having an accurate prediction of the maximum flow rate during blowdown is important for the reduction of overdesign associated with the relief valve/network sizing, without compromising on safety. For existing facilities, blowdown studies can prompt for changes in operating procedures, process equipment material or capacity to avoid brittle fracture during blowdown. UniSim Design achieves improved
fidelity by using a modelling approach consistent with the new recommended practices and analytical fire method set forth in the Sixth Edition (Jan 2014) of the API Standard 521 Pressure- relieving and Depressuring Systems. Validation tests show that the UniSim Design Blowdown Utility matches experimental data from publically available and proprietary sources, with the desired accuracy for blowdown prediction. l
For more information visit
www.honeywellprocess.com
AUMA Aplisens Bronswerk Heat Transfer Circuit Design Curtiss-Wright Digital Edge Subsea Egger Fine Tubes
54
www.engineerlive.com
Index of Advertisers 5
13 IFC 26 51 21 51 9
Fischer Connectors Franklin Offshore HILCO HILCO Hillesheim Krohne
NETZSCH Pumpen & Systeme Opsis
29 35 21 47 47 26 35 9
Parker Rotork Steatite Tekla Valeport WEKA Waukesha Bearings WireCo World Group
17 39 43 7
19 39
OBC IBC
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56