FLT, AN IBM-704 DIGITAL COMPUTER PROGRAM FOR THE CALCULATION OF MULTI-LOOP FLOW TRANSIENTS

Technical Report · Sat Apr 01 04:00:00 EST 1961

OSTI ID:4064643

Borrmann, G H; Burgess, R D; Strain, B L; Taylor, R B

ABS>The FLT program is an IBM-704 digital computer pro gram developed specifically for the calculation of flow translents occurring in a multi-loop flow system closed by a common flow path. Such transients may arise from pumping faults such as pump motor open circuiting, loss of excitation, and mechanical failure, or from normal pump startup and pump switching. The present program is capable of calculating complete or sequential loss of flow accidents arising from the first three pumping faults listed. The program is based on a multi-loop model of up to three inertially symmetric flow loops with one canned rotor, variable frequency, induction motor driven pump per loop having a separate motor power supply. Each loop also has a check valve representation, and a separately controlled isolation valve making it possible to initially or subsequently use any combination of flow loops. For the above transient flow conditions, specified as computer input for any loop combination and pump failure stagger time, the program wlll calculate flow and pump speed as a function of time for each flow loop. Subsequent versions of FLT will include other pumping faults as well as startup and switching transients. FLT is a FORTRAN program requiring an IBM-704 digital computer of 8,000 word minimum core storage. (auth)

• Research Organization: Knolls Atomic Power Lab., Schenectady, N.Y.
• DOE Contract Number: W-31-109-ENG-52
• NSA Number: NSA-15-022627
• OSTI ID: 4064643
• Report Number(s): KAPL-M-DIG-TD-14
• Country of Publication: United States
• Language: English

Related Subjects

MATHEMATICS AND COMPUTERS