Investigation of Thermal and Environmental Conditions of an Enclosed White Shrimp Hatchery Building

Conference proceedings article

Authors/Editors

Author list: Kamthon Septham, Yaowaree Sakvimonporn, Tanawat Suthon, Jiraphon Ngamtrirat, and Witthawat Sanghirun

Publication year: 2021

Start page: 72

End page: 77

Number of pages: 6

Languages: English-United States (EN-US)

White shrimp is one of the most significant products exported by Thailand. Nowadays, enclosed

hatchery buildings are commonly used to obtain desired environmental conditions and to ensure biosecurity.

The main objective of this study is to investigate thermal and environmental conditions of an enclosed white

shrimp hatchery building by means of computational fluid dynamics (CFD) and in situ measurements. The

information gathered would be useful for the development of enclosed hatchery buildings to obtain

favourable thermal rearing conditions for the growth and survival of shrimp larvae. The commercial full

scale enclosed hatchery building situated in Pathio, Chumphon, Thailand, was selected for this study. Multi

data loggers were placed at designated areas of the hatchery building to measure indoor/outdoor dry bulb

air temperature and rearing water temperature. The results show that the indoor air temperature fluctuated

within 26.9-37.8^oC during a day; it increased during the daytime and decreased at nighttime. Water

temperature varied within 30.6-32.5^oC exceeding the recommended values, 28-30^oC. The distribution of

indoor air temperature obtained from CFD agreed well with those obtained from in situ measurements with

a maximum relative error of approximately 5%. Large areas of extremely low airflow (dead zones) were

presented inside the hatchery building. It is suggested that the improvement of a ventilation system is needed

to minimize dead zones and to obtain appropriate thermal rearing conditions.

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