Figueroa Et Al

gas storage tank and vaporizer, air compressor, and boiler feed water make-up system, which are separate from the BOP skid. It is anticipated that in a commercial plant, the auxiliary equipment will be part of the BOP skid or eliminated. The electrical equipment and control system is within a control room and electrical room, which would be reduced to cabinet size equipment in a commercial product.

Objectives:

The objectives of the PDT test are:

• Determine plant component performance

• Prove that the BOP can be constructed using proven commercial equipment

• Applicability of the product simulating a distributed generation system at an end user site.

• Demonstrate the practicality of building, operating and maintaining power plants with non-specialized work force, which is not the normal operating procedure for an electric utility.

Coordination and Planning:

Construction of the 250 kW PDT plant was an integrated process between six different entities: M-C Power, Bechtel Engineering, Stewart & Stevenson, IHI, The U.S. Navy, and SDG&E. Each group had individual responsibilities, MCP to deliver the fuel cell, Bechtel to deliver process design and construction packages for the mechanical, instrumentation, and electrical contracts including control system design and specifications. Stewart & Stevenson incorporated the BOP into a skid-mounted unit, and SDG&E was the site coordinator providing, civil engineering and design, construction management, plant start-up, and operation. The Navy provided information on utilities on the selected site at NAS. Although IHI was perceived as a vendor of the reformer, coordination was required to ensure the compatibility of the reformer with the process design and transportation of the reformer to the site.

Planning for construction began with site definition and permitting. Site definition included negotiations with the Navy to install the project within the NAS facility followed by site selection. The permits were primarily from the Navy to meet environmental and safety requirements. Since the installation was within a Federal installation, a construction permit from the city was not required. We did however, submit construction drawings to the San Diego Navy Civil Engineering South West Division for their approval. Additional permits were required from the local pollution control district, the DOE environmental department, and the Navy's environmental group within the NAS facility. The PDT project was issued an exception by the San Diego Air Pollution Control District. DOE and NAS issued a categorical exclusion from an Environmental Impact Report

Construction of the PDT plant began in May 1995 and was completed in September 1996. Figure 1 is a photograph of the near completed plant at the time this paper was issued. Site preparation and civil construction was complete in November 1995 followed by mechanical and electrical construction which began in February 1996. To optimize the available resources, SDG&E electrical crews worked in parallel with the mechanical and civil contractors to expedite the construction process. We experienced some delays in construction due to field design changes.

Plant Commissioning and Start-up:

Although the PDT plant is 250 kW net, the commissioning process was quite similar to commissioning larger conventional power plants. The entire system was divided into subsystems

0 0

Post a comment