This is an infrequent occurrence that takes place if the shutdown valve HV5002 fails to close, when the hydraulically operated ERC (Emergency Release Connection) comes into effect. 2 Single stage valve closure with an accumulator 1.1.1.2 Emergency Shutdown In this scenario a number of cases are considered: Two stage valve closure type 1 without an accumulator Two stage valve closure type 1 with an accumulator Two stage valve closure type 2 without an accumulator Two stage valve closure type 2 with an accumulator Single stage valve closure without an accumulator
#Pipenet gilroy manual
1.1.1 The Scenarios Two basic scenarios are considered: 1.1.1.1 Planned Shutdown This is an everyday occurrence effected by the closure of shutdown valve HV5002 by a local manual switch or from the control room.
To investigate the effect of an acumulator in reducing surge pressure. The objectives of the study are the following: To establish if the pressure surges experienced by the existing valves due to valve closures are below the allowable limit of 25.5 bar G. As this is the first example, the methods used here are discussed in some detail. Most of the techniques used in this simple case are also applicable when solving other problems with PIPENET Transient Module. The design of the section under consideration is sketched below.įigure 1-1 Sketch Of The Engineer's Problem This example illustrates not only how easy it is to predict pressure surges using PIPENET Transient Module, but also how quickly one can appraise a proposed solution to the problem. An important aspect of the design was ensuring that pressure surges arising from the closure of valves would not cause damage to the pipework resulting in product spillage. The environmental implications were of major concern in the design because leakage of the product into the sea could have serious consequences. APPLICATION 1: SURGE ANALYSIS IN PRODUCT EXPORT LINE FROM A PETROCHEMICAL PLANT TO A JETTY 1.1 The Problem In our first application we consider an engineering company that had been contracted to design the product export pipeline from Product Storage Tanks in a petrochemical plant to a Jetty into loading tankers.
#Pipenet gilroy code
Also not applicable if Code section 403(b)(1), 403(b)(7) or 408 arrangements/accounts/annuities.ĢT - Total or partial participant-directed account plan - plan uses default investment account for participants who fail to direct assets in their account.ģD - Pre-approved pension plan - A master, prototype, or volume submitter plan that is the subject of a favorable opinion or advisory letter from the IRS.PIPENET APPLICATIONS MANUAL Rev 3.2 - August 1997ġ. Not applicable if plan is 401(k) plan with only QNECs and/or QMACs. 404c-1 is intended to be met.ĢK - Stock bonusCode section 401(m) arrangement - Employee contributions are allocated to separate accounts under the plan or employer contributions are based, in whole or in part, on employee deferrals or contributions to the plan.
404c-1.ĢG - Total participant-directed account plan - Participants have the opportunity to direct the investment of all the assets allocated to their individual accounts, regardless of whether. New comparability or similar plan: Allocations are based on participant classifications and a classification(s) consists entirely or predominantly of highly compensated employees or the plan provides an additional allocation rate on compensation above a specified threshold, and the theshold or additional rate exceeds the maximum threshold or rate allowed under the permitted disparity rules of section 401(l).ĢF - ERISA section 404(c) Plan - This plan, or any part of it is intended to meet the conditions of. 2A - Age/Service Weighted or new comparability or similar plan - Age/Service Weighted Plan: Allocations are based on age, service, or age and service.