Mechartes performed studies to reduce minimize mixing of the hot and cold fluids leading to a small transition region between the hot and cold fluid regions

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THERMAL ENERGY STORAGE
TANKS

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Energy efficiency of TES Tanks is
considerably influenced by thermal
stratification.
Thermal stratification is an issue that
arises because of the separation of the
hot and cold regions mainly as a result
of buoyancy forces during charging
and discharging operations.
SCOPE

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Thermal stratification results from the
gravity and density difference in the
storage tank, which is due to the
temperature gradient. The factors
influencing the thermal stratification
can be listed as:
SCOPE

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Heat losses to environment
Mixing due to outlet and inlet stream
Configuration of the tankConfiguration of the diffuser
design
Conductive heat transfer because of temperature
gradients in the fluid
Mass Flow Rate and Velocity from Diffusers

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Ensure Stratification
Minimize Thermocline Thickness
Laminar flow through diffuser slots
Low Froude Number
Low Reynold’s Number
Mechartes uses 3D transient Computational Fluid Dynamics (CFD)
simulations to design the diffusers (inlet & outlet) of the TES Tanks and
perform studies pertaining to the thermal stratification and minimize
the thickness of the thermocline such that mixing of the hot and cold
fluids can be minimized leading to a small transition region between
the hot and cold fluid regions
Mechartes with its multi-disciplinary team of engineers, ensures that
the followings parameters are maintained:

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Analysis of diffuser design on the
performance of the TES tank
Ensuring Stratification
Three-dimensional visualization of water
flow patterns in the tank
Prediction of the discharge water
temperature with time
Prediction and optimization of thermocline
thickness
Design and optimization of supply and
return diffusers
OUTPUTS FROM
THE STUDY:

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Applications Areas
Cooling District Plant Data Centers

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WEBSITE
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