HVAC system design for gymnasium of Urumqi Olympic Sports Center

This paper presents the design of the cold and heat sources, heating and air conditioning water systems, air conditioning air systems and anti-freezing measures, etc. for the gymnasium. Combined with the gymnasium’s function and the local dry-heat climate features, using indirect evaporative chillers provides high-temperature chilled water for floor radiation cooling system and pre-cooling section of air conditioning units of competition hall seat-air-supply system. This paper analyses the measures of anti-freezing in depth and proposes a method to confirm the minimum opening of electric regulating valves in an outdoor air pre-heating system.