Lessons from Other Sectors.
An efficient heat rejection system design is limited by the following parameters:.Supply air/water temperature:.
the design temperature the cabs/racks/CDU require during normal conditions..Peak summer and yearly external temperatures:.the design temperature the external heat rejection equipment must be rated to, typically there will also be an additional allowance for recirculation for multi-unit installations (usually validated by an external CFD based on extreme temperatures and wind conditions)..
In an ideal scenario, the peak summer design temperature would be lower than the required supply air/water temperature in the data hall.This allows the data centre to rely solely on the heat rejection plant and no chillers - minimising energy consumption and resulting in low PUE values.
PUE is dependent upon whether the heat rejection plant operates using adiabatic cooling..
However, for most data centres, peak summer temperatures exceed the required supply temperature.Structural optimisation and validation are included as part of this process to ensure that the truss meets the required specification.
Once complete, these 3D models become a suite of outputs which can drive further analysis of the wider system.This includes detailed analysis of parts of the assembly process, such as robotic welding cells..
In addition, the mathematical modelling and simulation tools (including process simulation models) can then be used to test the proposed manufacturing process and production options, providing stakeholders with more information to make better informed decisions.. Construction automation case study: the fabrication process.The factory takes square hollow section steel and plate steel as raw materials and fabricates different types of painted trusses.
(Editor: Collapsible Lighting Kits)