News from IIR members: Johnson Controls

Johnson Controls and Princess Noura bint Abdulrahman University are beating the record books with York CYK chillers. To construct what is claimed to be the world's largest chiller plant using air-cooled radiators, Johnson Controls is providing 26 York CYK chillers to Princess Noura bint Abdulrahman University, Saudi Arabia, the largest women-only university in the world. Each high-lift chiller has a capacity of 7280 kW. The university campus will be 8 million m² in total, with approximately 3 million m² of built-up area. The campus will include an administration building, a central library, conference centres, buildings for 15 faculties, several laboratories, and a state-of-the-art 700-bed hospital. Located in the arid climate of Riyadh, where water is scarce and very expensive, the university selected a cooling system design that will minimize water consumption. Compared to a plant that uses evaporative cooling towers, air-cooled radiators, that remove heat from the closed-loop, condenser-water circuit, will save an estimated 7 million litres of water per day of chiller operation.