Based on observed thrust and flow volume profiles as a function of the lift in closure and nozzle assemblies of known geometry, the flow volume can easily be determined for variation in pressure for a safety valve with a geometrically similar closure and nozzle of any size, combined with a spring of any prestress and rigidity. The outflow conditions and the spring capacity are considered, starting with a non-dimensional evaluation in order to generalize the problem. The resulting program permits calculation of the operating characteristics of a safety valve of specific properties under set operating conditions, in only a few minutes, even using a medium capacity computer. (R.H.)
Numerical determination of safety valve efficiencies / Minelli, G.; Borghi, M.; Carra, R.. - In: FLUID. - ISSN 0374-3225. - 26:263(1986), pp. 43-46.
Numerical determination of safety valve efficiencies
Borghi M.;
1986
Abstract
Based on observed thrust and flow volume profiles as a function of the lift in closure and nozzle assemblies of known geometry, the flow volume can easily be determined for variation in pressure for a safety valve with a geometrically similar closure and nozzle of any size, combined with a spring of any prestress and rigidity. The outflow conditions and the spring capacity are considered, starting with a non-dimensional evaluation in order to generalize the problem. The resulting program permits calculation of the operating characteristics of a safety valve of specific properties under set operating conditions, in only a few minutes, even using a medium capacity computer. (R.H.)
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