A Study on the Discharge System of Thermal Waste Water

J. Ocean Eng. Technol. 2007;21(6):87-94.

Kwak Ki-Su,Jeon Yong-Ho,Kim Heon-Tae,Ryu Cheong-Ro,Lee Kyung-Seon

Seatech R&D,Department of Ocean Engineering Pukyong National University,Department of Ocean Engineering Pukyong National University,Department of Ocean Engineering Pukyong National University,Department of Ocean Engineering Pukyong National University

온배수 방류시스템에 관한 기초적 연구

곽기수,전용호,김헌태,류청로,이경선

(주)씨테크 R&D,부경대학교 해양공학과,부경대학교 해양공학과,부경대학교 해양공학과,부경대학교 해양공학과

Keywords: Thermal waste water, Discharge system, Tidal current, Water temperature

핵심용어: 온배수, 방류시스템, 조류, 수온

Abstract

This study used POM (Princeton ocean model) improved for applying to coastal area in order to predict the distribution of thermal waste water. This model was applied to the coastal circulation and the effect of thermal waste water of Cheonsu-Bay. So this study compared the discharge of thermal waste water with each layer and section. The tidal current was about 1.5 m/sec at surface level and 0.9 m/sec on bottom level at flood tide; tidal current was about 1.3 m/sec on surface level and 0.8 m/sec on bottom level at ebb tide. The method discharging the thermal waste water in the nearshore region (case 1) accelerates the diffusion of the thermal waste water in the north-south direction(longshore direction). However, the method discharge the thermal waster water in the offshore region (case 2) reduced the diffusion of the thermal waste water over the coastal region. According th the diffusion region of the thermal waste water with case 1 and case 2 at three different layers (surface, middle, bottom), the diffusion region by case 1 discharge method generally influenced wider region (twice) than the one by case 2 discharge method with lower temperature between $1^{circ}C;and;2^{circ}C$, whereas the case 2 discharge method influenced the deeper region (middle and botton layers) with higher change of the water temperature ($1{sim}3^{circ}C$).