Q_As_0002.pdf

1. What is the expected runtime?

a. The expected continuous operating time is up to 12 hours.

2. How frequently will it operate?

a. The system may operate up to seven (7) days per week, but is expected to typically operate three (3) to four (4) days per week during the colder months.

3. What is the expected duration of use and the number of cars?

a. The Government intends X5313 to remain in long-term operational service and provide steam heat for the anticipated passenger service consist.

4. Where is the fill station located and what is the water hardness at Steamtown?

a. Water will typically be supplied from municipal fire hydrants at Steamtown

National Historic Site. Water hardness data is not available.

5. Is a Reverse Osmosis (RO) system required in the tender?

a. Yes. The Contractor shall furnish, procure, install, and commission a reverse osmosis treatment system in accordance with the requirements of the Scope of Work.

6. What are the water softener requirements?

a. No water softener is required under this contract. The Contractor shall furnish a water treatment system, including the required Reverse Osmosis (RO) system, that meets or exceeds the steam generator manufacturer’s feedwater quality requirements.

7. Is standby or backup heat required when not running?

a. No. Standby or backup heat is not required under this contract. However, the

Contractor may incorporate such features if they are integral to the proposed system design.

8. What is the feed water per heat requirement?

a. No specific feedwater rate is established. The Contractor shall size the feedwater and water treatment systems to support the steam generator performance requirements specified in the Scope of Work.

9. Are blowdown tanks or separators required?

a. No. Blowdown tanks or separators are not required. Blowdown may be discharged into the Government’s existing oil-water separator system in accordance with site procedures.

10. What are the pollution control and PA requirements to run #2 fuel oil?

a. The Contractor shall comply with all applicable regulatory requirements governing the installation and operation of the proposed equipment.

11. Should the steam outlet be on both sides of the tender with the new HEP system?

a. Yes. Steam and HEP trainline connections shall be provided at both ends of Train Car X5313 in accordance with the Scope of Work.

12. Regarding water capacity, what is the maximum operational duration per day?

a. The maximum anticipated operational duration is up to 12 hours per day.

13. Is insulation or sound deadening preferred?

a. No. Insulation and sound deadening are not required under this contract.

14. Should water dump valves be included to protect the boiler, holding tanks, pumps, and RO in freezing temperatures in the tender?

a. Yes. The system shall include provisions to drain water from the boiler, water tanks, pumps, piping, and RO system for freeze protection.

15. Are the water softener and RO required before water enters the tanks and to be inside the tender?

a. No water softener is required under this contract. The RO system shall draw water from the existing onboard bulk water tanks and supply treated water to a dedicated clean-water storage tank within Train Car X5313.

16. What are the requirements for water storage prior to running?

a. The Contractor shall provide sufficient onboard water storage to support the operating requirements specified in the Scope of Work.

17. How should water chemical treatment be introduced to the system?

a. The method of water chemical treatment shall be determined by the Contractor in accordance with the steam generator manufacturer’s recommendations.

18. What is the load requirement for the step-down transformer from 480 3-phase to 220 volts and 120 volts?

a. The Contractor shall size the transformer as necessary to support the connected 120V and 220V loads required by the proposed equipment and systems in accordance with the Scope of Work.

19. Are extra roof vents required to allow heat to escape, or are power exhaust fans preferred?

a. The Contractor shall provide adequate ventilation for the installed equipment. The method of ventilation, including roof vents or powered exhaust fans, shall be at the Contractor’s discretion.

20. Is a larger air inlet required to meet the airflow requirements?

a. The Contractor shall evaluate the existing air inlets and provide any additional intake or ventilation necessary to meet the airflow requirements of the proposed equipment.

21. What are the exhaust venting requirements for the generator?

a. Exhaust shall be vented through the roof utilizing the existing roof vent location where practical. The Contractor shall ensure the exhaust system complies with the equipment manufacturer's requirements.

22. If the new boiler system has its own compressor, is an additional air compressor still required?

a. No. A separate air compressor is not required, provided the Contractor’s proposed system includes adequate compressed air to support operation of the steam generator.

23. Does the new boiler require float-style or probe-style water level controls?

a. The method of water level control shall be determined by the Contractor in accordance with the steam generator manufacturer’s recommendations.

24. How should potential delays and the manufacturing of new parts be handled if unforeseen truck work is required?

a. Unforeseen truck conditions shall be handled in accordance with Section

3.2.9.3.1 of the Scope of Work. The Contractor shall document the condition and obtain COR concurrence prior to performing corrective repairs.

25. Does the pressure for the trainline need to be regulated?

a. Yes. The trainline steam supply shall be regulated. The regulator shall be adjustable from approximately 5 PSIG minimum to at least 100 PSIG, with the operating pressure set as needed for the consist.

26. What is the steam load or consumption of the cars?

a. Steam consumption data for the passenger cars is not available. The steam generator shall meet or exceed the performance requirements specified in the Scope of Work.

27. Is there a requirement for a welded or threaded pipe steam delivery system?

a. Yes. The steam delivery piping system shall utilize threaded pipe connections where permitted by applicable codes and the steam generator manufacturer’s recommendations.

Government Clarification - Running gear

Train Car X5313 is equipped with Timken roller-bearing trucks.