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Project integrate sustainable solutions that leverage existing resources . This not only reduces operational costs but also enhances system reliability by avoiding unnecessary complexities in control mechanisms ."
OVERCOMING CHALLENGES Reflecting on the project ' s challenges , Ndlala cites space constraints as a significant hurdle . " Despite building from scratch , space limitations posed logistical challenges , particularly for accommodating the required airflow volumes . While the initial design accounted for technical requirements like double-skin ducting to mitigate noise and thermal loss — a critical factor in an ICU environment – on-site realities often presented unforeseen obstacles ."
Ndlala recounts one such challenge : " A misplaced pipe required careful coordination among contractors to ensure minimal disruption . However , the main issue was a face brick wall that initially hindered airflow from the plant room to the ICU . Fortunately , once removed , internal installations proceeded smoothly ."
" Meticulous coordination among the Maninga Engineering team and various contractors was imperative as the project encompassed wet services , medical gases , lifts , and HVAC systems designed by Maninga Engineering . Managing these disciplines ensured seamless integration and adherence to project timelines ,” says Ndlala .
INNOVATIONS IN PLUMBING AND WATER MANAGEMENT Detailing the integration of plumbing solutions , Ndlala highlights the use of a calorifier for efficient steam utilisation in water heating . " The calorifier , akin to a large geyser , harnesses steam from the hospital ' s boilers . The hot water is circulated through a multilayer pipe composed of PE-RT and aluminium , blending the advantages of plastic and metal piping systems . The substantial aluminium layer guarantees strong stability and exceptional mechanical strength ."
Additionally , a backup water tank equipped with a filtration system guarantees continuous water supply , crucial for both operational efficiency and patient care .
ICU ward passage .
ICU ward room interior .
" By prioritising patient comfort and system reliability , we integrated redundant systems for HVAC units . Each VRF unit was designed with an N + 1 redundancy , ensuring uninterrupted operation even in case of unit failure ."
www . refrigerationandaircon . co . za RACA Journal I October 2024 33