Transient performance of air-cooled condensing heat exchanger in long-term passive cooling system under decay heat load
| Autor: | Youngmin Bae, Joo Hyung Moon, Young-In Kim, Hee Joon Lee, Myoung Jun Kim |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Passive cooling 020209 energy Nuclear engineering Plate heat exchanger Thermodynamics 02 engineering and technology 020401 chemical engineering Nuclear Energy and Engineering Run-around coil Heat recovery ventilation Regenerative heat exchanger Heat spreader 0202 electrical engineering electronic engineering information engineering Plate fin heat exchanger 0204 chemical engineering Shell and tube heat exchanger |
| Zdroj: | Annals of Nuclear Energy. 102:274-279 |
| ISSN: | 0306-4549 |
| Popis: | The transient performance of an air-cooled condensing heat exchanger in a long-term passive cooling system was evaluated under a decay heat load modeled by the ANS-73 curve. An experiment was conducted in a 1/2500-volume scaled-down model of the emergency cooldown tank (ECT) of the system-integrated modular advanced reactor (SMART). It was confirmed that the scaled design requirement of cooling capacity of the air-cooled condensing heat exchanger was well satisfied under the decay heat load. It was also confirmed that the water level in the emergency cooldown tank was maintained continuously for longer than 72 h by the collection of steam in the air-cooled condensing heat exchanger under the decay heat load. |
| Databáze: | OpenAIRE |
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