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CFD Modelling of Communications Shelter

HRL assists client to understand thermal performance of communications shelter

Challenge

 

HRL was approached by a client to conduct thermal modelling analysis of a telecommunications shelter located in outback Australia. The shelter needed to be maintained below a given temperature to protect the internal equipment.  The shelter was to be cooled by a combination of ambient air flow and air conditioning to minimise electricity consumption given that the shelter was not connected to grid electricity.  The client needed to understand the thermal performance of the shelter under different internal and external heat load conditions and meteorological conditions to ensure that the shelter would operate effectively across the range of expected ambient conditions. The challenge was to develop a CFD model that could accurately predict the temperatures inside the shelter and provide insights into the impact of dynamic heat loads on the shelter's thermal performance.

Solution

 

HRL developed a CFD model of the shelter using ANSYS Fluent software. The model was calibrated against site-monitored data to ensure that the input parameters were accurate. HRL simulated three cases to investigate the effect of increased internal heat load and the impact of external heat loads on the shelter temperatures. The transient simulations were run with equipment heat generation, solar radiation, and variable wind conditions for sufficient flow time that represented several day-night cycles. The dynamic boundary conditions were injected using customised coding.  This approach ensured that a steady cyclic behaviour of temperature profile inside the shelter was achieved.

CFD modelling results showcasing thermal performance

 

 

Results

 

The CFD model developed by HRL predicted the temperatures inside the shelter under different heat load conditions and meteorological conditions. Further improvements of the shelter design were recommended to decrease the air conditioning cooling requirements.

 

HRL's CFD modelling expertise and capabilities were instrumental in providing valuable insights into the thermal performance of the shelter. The client was able to use these insights to make informed decisions about the heat management aspect of the shelter. The results of the CFD model developed by HRL were used by the client to optimise the thermal performance of the shelter based on the different heat load conditions and meteorological conditions to be experienced by the shelter.

HRL's expertise in CFD modelling can be applied to a wide range of engineering problems, including thermal management, fluid dynamics, and combustion analysis.

 

 

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