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Project
sizes and pipe coil lengths are calculated by the programme , which need to be installed later into the foundational structures of the lodge buildings . This programme makes ordering all necessary equipment for the installation possible , as it provides detailed engineering results needed for every component . The broad overview of the piping reticulation can be seen in the following picture :
Broad overview of Monwana ’ s pipe reticulation network .
Aerial view of PV solar panels for electricity generation on roof structures .
also transferred to the hot buffer tanks . The heat pumps with partial heat recovery can be seen in the following picture :
We first make use of what is freely available to us in sunny South Africa : the sun . We obtain energy from the sun through the solar water heating panels adding around 1.5 – 2Kw of heating per panel to the system . The energy is transferred to insulated buffer tanks . The solar thermal panels can be seen in the following picture :
ANL desuper heat recovery units .
The energy stored in the hot buffer tanks is transferred to various energy-hungry elements by the distribution stations . The distribution stations can be seen in the following picture :
Sungazer solar hot water flat plate collectors
A second source of hot water is a chiller with full heat recovery . It is the main source of cooling for the server rooms and any spatial cooling demand . Any heat removed is recovered and transferred to the hot buffer tanks .
A third source of heat is heat pumps equipped with desuper heaters . They can heat the buffer tanks . These heat pumps can also assist with cooling , as about 20 % of the heat rejection is recovered as high temperature hot water that is
Boilernova hot water buffer tanks , expansion vessels and distribution stations .
In the picture above , the hot water buffer tanks can be seen on the left hand side together with expansion vessels that deal with the expansion and contraction of the system .
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RACA Journal I July 2024 www . refrigerationandaircon . co . za