Construction World December 2021

individual AC uni ts to reduce energy consumpt ion • During NV mode in the respect ive rooms , the AC wi l l be of f, which reduces energy consumpt ion • There i s a 30% reduct ion in Port land cement content of the concrete mixes used • The façade has the abi l i ty to be 100% di sassembled. Thi s means that i t can eas i ly be removed for future reuse. The components are able to be reused wi thout having to be recycled. • 16% of the bui lding materials were sourced wi thin 50 km of the s i te and a further 20% wi thin 400 km of the s i te. Thi s resul ted in less carbon emi ss ions f rom the logi st ics to get materials to the s i te. Promot ing transport sustainabi l i ty • 54 parking bays have been provided for the VTLL Admin bui lding. (Thi s i s less than i s requi red by the local planning authori t ies to encourage bui lding users to make use of al ternat ive modes of transport ) . • Preferent ial parking for fuel ef ficient (FE) vehicles and motorbike parking • Two electric vehicle charging bays have been provided on s i te • Bicycle cycl ing faci l i t ies (cycl ing lanes , parking faci l i t ies , showers , and lockers) are avai lable to staf f and vi s i tors . 

wi l l command al l the hopper windows to close. Thi s weather stat ion also records instantaneous wind di rect ion, and wi l l plot data over a 12-month period to al low further refinement of the NV control logic. The intent ion i s to reconfigure the control system to open windows on the s ide of the bui lding oppos ing the wind di rect ion. Thi s wi l l al low the bui lding to funct ion in NV mode for longer periods . The NV system i s also l inked to internal space temperature sensors that al low the windows to modulate based on the room temperatures . For securi ty and other reasons (e.g. to avoid insect ingress) , the NV system i s locked out at 18:00, which then act ivates the mechanical system. Advanced VRF ai r condi t ioning plant The ai r condi t ioning system cons i sts of a Variable Ref rigerant Flow (VRF) plant instal led wi th heat recover y modules to recover heat during intermediate seasons . Each space has i ts own evaporator uni t l inked to an individual port of the heat recover y module. Thi s al lows for separate heat ing and cool ing s imul taneously throughout al l the requi red spaces wi thin the bui lding. Whi le VRF systems are commonly used, thi s system i s l inked to a central control system networked to the bui lding management system (BMS) . The bui lding management system analyses the room occupancy status f rom the DALI l ight ing system. I f the space has been unoccupied for an extended period, then the BMS wi l l turn that speci fic indoor uni t and l ight of f, to save energy. Reducing the bui lding’s carbon footprint A range of inter vent ions were implemented to reduce the carbon footprint of the VTL Admin bui lding and the related global warming ef fect , including: • The ai r condi t ioning system contains R410 ‒ a ref rigerant gas wi th a Zero Ozone Deplet ion Potent ial (ODP) • The LED energy ef ficient l ights lower energy demand and consumpt ion • The roof top Photovol taic cel ls provide on-s i te clean energy generat ion • The occupancy sensors swi tch of f the l ight ing and

PROJECT INFORMATION

• Company entering: Zutari • Project start date: February 2019 • Project end date: December 2020 • Main contractor: Enza Construction • Architects: Fokkema & Partners Architects (Netherlands), Messaris Wapenaar Cole Architects (South Africa)

• Principal Agent: Vopak South Africa • Project Manager: Vopak South Africa • Quantity Surveyors: Zutari • Civil Engineer: Zutari

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20 th Best Project Awards 2021