Articles
OPTIMISATION OF AIR CONDITIONING DIFFUSERS LOCATION IN LARGE AGRICULTURAL WAREHOUSES USING CFD TECHNIQUES
Article number
1008_30
Pages
229 – 234
Language
English
Abstract
The implementation of air conditioning devices for climate control in large agricultural warehouses is required to keep adequate atmospheres for several plant species and industrial or human activities.
Factors as temperature, air velocity or humidity are fundamental for plant growing or product conservation.
Diffusers geometry and their placement strongly affect temperature and velocity fields.
In the case study presented, a metallic structure warehouse in the south of Spain is considered, assuming that very warm outside conditions (temperature of 38°) are reached outside.
An evaporative cooling system of low energy consumption is used to cool the warehouse, allowing human activity inside the warehouse in acceptable conditions, despite of the outside extreme temperature.
The cooling system uses only a fan and a small water pump, generating a humid air breeze across wet pads.
Diffusers separation is investigated for an optimal cooling of the warehouse using CFD techniques.
The complexity involved due to convective and diffusive terms, buoyancy forces and nonlinearities of the flow governing equations make it necessary in practice to develop individual numerical simulation for each diffuser geometry, climate scenario, boundary conditions and objective climate control conditions.
Factors as temperature, air velocity or humidity are fundamental for plant growing or product conservation.
Diffusers geometry and their placement strongly affect temperature and velocity fields.
In the case study presented, a metallic structure warehouse in the south of Spain is considered, assuming that very warm outside conditions (temperature of 38°) are reached outside.
An evaporative cooling system of low energy consumption is used to cool the warehouse, allowing human activity inside the warehouse in acceptable conditions, despite of the outside extreme temperature.
The cooling system uses only a fan and a small water pump, generating a humid air breeze across wet pads.
Diffusers separation is investigated for an optimal cooling of the warehouse using CFD techniques.
The complexity involved due to convective and diffusive terms, buoyancy forces and nonlinearities of the flow governing equations make it necessary in practice to develop individual numerical simulation for each diffuser geometry, climate scenario, boundary conditions and objective climate control conditions.
Authors
D. Valero Huerta , R. García-Bartual
Keywords
air conditioning, climate control, FLOW-3D, numeric simulation, turbulence model
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