Emergency relief system design for reactive and non-reactive systems: Extension of the DIERS methodology

1988 ◽  
Vol 7 (3) ◽  
pp. 153-158 ◽  
Author(s):  
Hans K. Fauske
Keyword(s):  
System Design ◽  
Reactive Systems ◽  
Emergency Relief ◽  
Relief System

Emergency Relief System Design Using DIERS Technology

1993 ◽  
Author(s):  
H. G. Fisher ◽  
H. S. Forrest ◽  
S. S. Grossel ◽  
J. E. Huff ◽  
A. R. Muller ◽  
...  
Keyword(s):  
System Design ◽  
Emergency Relief ◽  
Relief System

scholarly journals The Pressure Relief System Design for Industrial Reactors

2013 ◽  
Vol 2013 ◽  
pp. 1-14 ◽  
Author(s):  
Iztok Hace
Keyword(s):  
System Design ◽  
Systems Design ◽  
Process Industry ◽  
Industrial Accidents ◽  
Pressure Relief ◽  
Blow Down ◽  
Emergency Relief ◽  
Industrial Plants ◽  
Ecological Problems ◽  
Relief System

A quick and simple approach for reactor—emergency relief system design—for runaway chemical reactions is presented. A cookbook for system sizing with all main characteristic dimensions and parameters is shown on one realistic example from process industry. System design was done based on existing theories, standards, and correlations obtained from the literature, which were implemented for presented case. A simple and effective method for emergency relief system is shown, which may serve as an example for similar systems design. Obtained results may contribute to better understanding of blow down system frequently used in industrial plants, for increasing safety, decreasing explosion damage, and alleviating the ecological problems together with environmental pollution in case of industrial accidents.

Study on the Relief Capacity and Safety Integrity of Multiple Relief Valves of Charge Gas Pipe in Ethylene-Cracking Plant

2013 ◽  
Author(s):  
Jianxin Zhu ◽  
Xuedong Chen ◽  
YunRong Lu ◽  
Zhibin Ai ◽  
Weihe Guan
Keyword(s):  
Large Scale ◽  
Relief Valve ◽  
Pressure Relief ◽  
Emergency Relief ◽  
Safety Integrity Level ◽  
Upstream Pressure ◽  
Minimum Number ◽  
The Difference ◽  
Relief System

The shutdown of charge gas compressor in large-scale ethylene-cracking plant always involves emergency pressure relief of charge gas through multiple safety valves. The emergency relief capacity plays an important role on the safety of the overall plant. In this paper, by studying the difference between the configuration of the pressure relief system of two 1000 KTA ethylene-cracking plants (the inner diameters of the charge gas pipeline in both plants are 2m, while the number of same-sized relief valves are 28 and 19, respectively), the relief capacity of multiple relief valves is studied and compared with empirical calculation and numerical analysis. It is found that, due to the interruption of fluid flow when compressor is emergency shutdown, the upstream pressure of each relief valve increase steadily with the continuously make-up of the charge gas, but the difference between the inlet pressure of all relief valves can be neglected. With the increase of the upstream pressure, the opening of relief valves is determined mainly by the set pressure. In multiple valves pressure relief scenario, normally the downstream valves have greater relief capacity than those upstream valves if both relief valves have the same back pressure. Also, by analysis it is noted that the pressure relief capacities of multiple relief valves in both plants are sufficient. The minimum number of relief valves required for process safety is obtained. The maximum achievable Safety Integrity Level (SIL) of pressure relief system is determined by calculation of the reliability of the redundant relief valves. The analysis is used for determination of the SIL of the pressure relief system. The finding is also significant for determination of the required capacity of multiple relief valves.

Thermodynamic methods for pressure relief system design parameters

2006 ◽  
Vol 241 (1-2) ◽  
pp. 41-50 ◽  
Author(s):  
Kwang W. Won ◽  
Arnie R. Smith ◽  
Gerald A. Zeininger
Keyword(s):  
System Design ◽  
Design Parameters ◽  
Pressure Relief ◽  
Relief System
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