Start-up schedule

Rafineria Gadansk/ Poland 1600 tonne/ day Shell Asphalt Start-up scheduled for 2006 — will produce power and H2... 

In the following section, three occurrences which caused serious delays in the nonnuclear start-up schedule are described repair of the sodium dump and leakage hold-up tanks recovery of fragments of a broken vibration measurement lance and increased hydrogen concentration in the reactor vessel and the sodium-cooled fuel store inert gas plenum. 

Uniform, rehable flow of bulk soflds can allow the production of quaUty products with a minimum of waste, control dust and noise, and extend the hfe of a plant and maximi2e its productivity and output. By conducting laboratory tests and utili2ing experts with experience in applying soflds flow data, plant start-up delays that can impact schedule and cost can be eliminated. 

The next generation of gas turbine-based, combined-cycle power plants, under constmction in many parts of the world, is to feature net plant efficiencies in the 60% range based on LHV of fuel input. These faciUties, scheduled for start-up in the latter 1990s, are anchored by large gas turbines capable of simple-cycle efficiencies >40% LHV in some cases. To develop these machines, manufacturers have scaled up and improved upon designs that have already proved to be highly rehable. 

The project review process involves multiple steps that should be definea in management gmdelines (CCPS, 1993, pp. 57-61). The steps include (1) review pohcy, (2) review scheduling, (3) reviewtech-nique, (4) review team representation, (5) review documentation, (6) review follow-up, (7) review follow-up verification, and (8) review procedures change management. These steps define how a review, whether it be a safety review, environmental review, pre-start-up review, or whatever, is conducted and how closure of review aclion items is achieved. 

Irradiated Fuel A historically important and continuing mission at the Hanford site is to chemically process irradiated reactor fuel to recover and purify weapons-grade plutonium. Over the last 40 years, or so, several processes and plants— Bismuth Phosphate, REDOX, and PUREX—have been operated to accomplish this mission. Presently, only the Hanford PUREX Plant is operational, and although it has not been operated since the fall of 1972, it is scheduled to start up in the early 1980 s to process stored and currently produced Hanford -Reactor fuel. Of nine plutonium-production reactors built at the Hanford site, only the N-Reactor is still operating. 

On the other hand, Union Carbide was plagued by all sorts of problems in starting up its chemical complex at Taft, La. It was reported that startup problems reduced corporation after-tax earnings by 30,000,000 and set the time schedule for full production back 18-24 months.12... 

The PERT technique was developed in connection with the Navy s crash project to produce the Polaris submarine. It is given much of the credit for the completion of that program 18 months ahead of schedule. In another spectacular success, the turnaround time (the time necessary to shut down, repair, maintain, inspect, and start up the unit) for a methanol unit was cut from 12 to 9 days, with no increase in personnel, by using CPM. This is especially impressive since a similar turnaround had been done annually for 25 years,2 and using the best methods available the turnaround time had never been less than 12 days. 

JSP is due to complete in June a 120 t/y moulding plant for vehicle bumper cores based on P-Block expanded PP on the plant site of its US subsidiay J V Foam Products. JSP has also begun to build a 1, 200 t/y expanded PP beads plant on the same site, scheduled to start up in January. The products will be marketed in Mexico and the US. 

Minimize changes during the EPC, turnover, and start-up phases. Reduce project schedule and capital cost. 

A go/no go decision for on-board fuel processing work is scheduled for 2004. The primary criteria for this decision will be the identification of a credible path to achieve a 30-second start-up time target. 

Recommendation 4-1. The Army should evaluate off-site management of hydrolysates both for potential cost and schedule benefits and as a contingency plan in case difficulties arise during start-up and pilot testing of the on-site (postneutralization) process steps. 

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