Author/Authors :
KAMARUDIN, MOHD SALLEH Universiti Putra Malaysia - Faculty of Agriculture - Dept of Aquaculture, Malaysia , KAMARUDIN, AHMAD KAMIL Politeknik Jeli Kelantan - Dept of Agrotechnology and Bio-Industry, Malaysia , SHAHMAD, SABARINAH Universiti Teknologi MARA - Faculty of Architecture, Planning and Surveying, Malaysia , SALLEH, ELIAS Universiti Kebangsaan Malaysia - Solar Energy Research Institute, Malaysia
Abstract :
This paper investigated the effects of roof design on the thermal conditions of indoor air and larviculture tank water of a tropical freshwater prawn Macrobrachium rosenbergii (de Man 1879) hatchery building. The research method was through a simulation study, using Integrated Environmental Solutions Virtual Environment (IES VE) software and the building modelled was based on an existing medium scale enclosed freshwater prawn hatchery. Monitor roof (vented ridge) was compared with the existing pitched roof design. The results showed the vented monitor roof design provided a considerable improvement to the indoor thermal environment of the prawn hatchery. The indoor air temperatures recorded under the monitor roof was close to the upper human acceptable thermal limit (34.0 °C) and some of the thermal readings were adequate for humanly comfortable condition. The indoor air temperatures became totally acceptable for the occupants during daytime through the installation of reflective aluminium foil (RAF) to the monitor roof. Therefore, the combination of monitor roof and RAF was recommended to achieve acceptable indoor air thermal condition for occupants while successfully maintaining the water thermal requirement for optimal prawn larval growth.
