River temperature cycling at 181-D
- Resource Type
- Technical Report
- Authors
- Source
- Other Information: DN: Declassified; PBD: 13 May 1966
- Subject
- 22 GENERAL STUDIES OF NUCLEAR REACTORS
54 ENVIRONMENTAL SCIENCES COLUMBIA RIVER
MONITORING
HANFORD PRODUCTION REACTORS
THERMAL EFFLUENTS
TEMPERATURE MEASUREMENT
FLOW RATE
RHODAMINES
DISPERSIONS 220503
CHEMICAL AND THERMAL EFFLUENTS
RADIOACTIVE EFFLUENTS
RESEARCH, TEST, TRAINING, PRODUCTION, IRRADIATION, MATERIALS TESTING REACTORS
SITE RESOURCE AND USE STUDIES
- Language
- English
Daily river temperature cycling has existed at reactor area river pumphouses from the beginning of operations. Of small account at first and due only to the daily air and solar radiation cycle, the phenomenon became significant with the initiation of daily river flow cycling at priest Rapids Dam to meet changing power generation requirements. The problem was compounded by the construction of the N reactor, placing a water intake and outfall at approximately half the previous distance between the K and D reactors. The decidedly non-uniform effluent distributions in the river at the shorter distances has caused apparent daily temperature swings at 181-D. This distribution was determined by the use of rhodamine B dye. Estimates of the relative contributions over a range of river flow to the temperature cycling at 181-N were made. A similar evaluation of the relative contributions at low river flow only at 181-D from K and N reactor operations has been requested by Douglas United Nuclear, Inc. This report is made to satisfy that request.