Document: NUREG-0800
Document ID: 91b47227-679e-4e3e-95a7-e32002caa9a9
Document Type: srp
Title: EMERGENCY DIESEL ENGINE COMBUSTION AIR INTAKE AND EXHAUST
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550033.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.8
CFR Part: 
CFR Title: 

Content:
SYSTEM REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of diesel generator support systems Secondary - None I. AREAS OF REVIEW The emergency diesel engine combustion air intake and exhaust system (EDECAIES) supplies combustion air of reliable quality to the diesel engines and exhausts combustion products from the diesel engines to the atmosphere. The system is reviewed from the outside air intake to the combustion air supply lines connected to the diesel engine interface and from the exhaust connections at the diesel engine interface1 to the discharge point outside the building for compliance with General Design Criteria (GDCs) 2, 4, 5, and 17. The specific areas of review are as follow: 1. EDECAIES review verifies that: A. Each diesel engine has an independent combustion air intake and exhaust system. 9.5.8-2 Revision 3 - March 2007 B. The components are designed, fabricated, erected, and tested to acceptable quality standards. C. The system has boundary divisions between safety-related and nonsafety-related sections. D. Failures of any non-seismic Category 1 structure, system, or component (SSC) (or failures of other non-seismic components or systems) will not affect the safety functions of the system adversely. E. Sections of the system important to safety are housed in or on a seismic Category I structure. F. The consequences of a single, active failure in an engine combustion air intake or exhaust system will not lead to the loss of function of more than one diesel generator. G. Instrumentation and control features permit operational testing of the system and assure that normal protective interlocks do not preclude engine operation during emergency conditions. H. Sufficient space permits inspection, cleaning, maintenance, and repair of the system. 2. Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC). For design certification (DC) and combined license (COL) reviews, the staff reviews the applicant's proposed ITAAC associated