C US Nuclear Power Plants

About 41 undesired events involving hydrogen (Table C-2) have occurred in US nuclear power plants until 1992. Most of the hydrogen was used in the cooling system of the electrical generators.

Event Location

Explosion Fire events events

Leakage

Other events

Total Events

Turbine building, generator cooling system

2

7

7

O

16

hydrogen storage system for turbine coolant

2

1

O

O

3

Vapor collection tank cover system

O

O

11

O

11

Radioactive waste gas, radiolytic hydrogen

1

O

1

s

1O

lead acid batteries

1

O

O

O

1

Total hydrogen events

6

8

19

8

41

C.2.9 NASA Operations

C.2.9 NASA Operations

An important report discussing incidents with hydrogen in aerospace operations is [148]. The report lists 96 incidents of releases of hydrogen, both gaseous and cryogenic. This study was performed on National Aeronautic and Space Administration (NASA) facilities. Twenty-six percent of the accidents were caused by work area deficiencies, such as inadequate work conditions during installation or maintenance, or lack of training. Procedure deficiencies accounted for 25% of the mishaps. Design deficiencies accounted for 22% of the events. Planning deficiencies, such as test plans and hazard studies, resulted in 14% of the events. Component malfunctions (accountable to the component) resulted in 8% of the events. Material incompatibility and material failures accounted for 3% of the events. These events were not catastrophic failure, and few events resulted in fires.

DIY Battery Repair

DIY Battery Repair

You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.

Get My Free Ebook


Post a comment