Document: NUREG-0800
Document ID: 4cf3fa16-4c16-442f-9f37-a4f430fc022d
Document Type: srp
Title: EMERGENCY DIESEL ENGINE COMBUSTION AIR INTAKE AND EXHAUST SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350043.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.8
CFR Part: 
CFR Title: 

Content:
functional requirements are met. 8. The SAR is reviewed to assure that provisions have been made in the diesel generator combustion air intake design to minimize the ingestion of airborne particulate material over the entire time period that emergency- power is required. The reviewer also verifies the following: a. That the intake design is reviewed to assure that the bottom of the intake opening is located a minimum of 20 feet above grade. b. That the SAR is reviewed to assure that provisions have been made to minimize the generation of dust, particularly in multiunit plants when one unit is operating and the other is under construction (abnormal generation of dust). Dust control in the diesel generator rooms entering via the ventilation system is reviewed by ASB as part of its review responsibility for SRP 9.5.8-5 Rev. 2 - July 1981 Section 9.4.5. In SRP Section 8.3.1, PSB reviews the SAR to assure that the electrical equipment associated with starting the diesel generators (e.g., auxiliary relay contacts, control switches, individually or panel mounted) are protected from dust accumulation, other deleterious material entering diesel generator room, and dust generated from concrete floors and walls. IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided and his review supports conclusions of the following type, to be included in the staff's safety evaluation report: The emergency diesel generator combustion air intake and exhaust system (EDECAIES) includes all components and piping of the air intake system from the atmospheric air intake to its connection to the engine interface and all components and piping of the exhaust system from its connection to the engine interface to the point where it exhausts to the atmosphere. The scope of the review of the EDECAIES for the plant included layout drawings, piping and instrumentation diagrams, and descriptive information for the system and auxiliary supporting systems that are