Najmat district occupies approximately 20% of Reem Island at 150Ha and will be home to some 80,000 residents.
B&W undertook a novated design and construction management of Najmat Phase 1 district cooling reticulation network for a connected cooling load of 230MW (65,000TR) entailing coordination with other infrastructure services and recovery of condensate from plot developers as make-up water to the central plant cooling towers. B&W also produced a concise plot developer energy transfer station (ETS) guideline document detailing the parameters and performance criteria the plot developers were expected to comply with.
For the Phase 3 expansion of the Najmat district B&W provide assessment of the district cooling requirements taking into account the viability of its use for the different plot developer buildings. The overall connected cooling load totalled 405MW (115,000TR); considering diversity, a district cooling plant of 280MW (80,000TR) with 35MW (peak-hour) of thermal energy storage was planned. The district cooling plant was planned for phased construction to suit the take-up of load by plot developers.
B&W were awarded the Contract to manage the provision of district cooling to plot developers. B&W were conscious that district cooling plants are often under-utilised and for successful operation require confirmed loads and efficient use of chilled water by plot developers. B&W provided briefings to plot developer, encouraged sustainable design solutions and interrogated end user HVAC provisions for compliancy with the mandatory requirements of the ETS guideline document throughout the design and installation stages. B&W monitored district cooling take-up of plot developers for the purpose of establishing the build-out phasing of the district cooling plant and reporting progress to the Client.
B&W were tasked with the design and contract supervision of temporary cooling plants to serve isolated plots whose completion were in advance of the district cooling plant becoming operational. B&W determined optimum sized temporary cooling plants for fast mobilisation based upon ADWEA regulations, oversaw the installation, monitored operation and facilitated monthly billing to the plot developer.