How many lift pumps should be used for 100 meters tall buildings?
35m lift around. HVAC pump lift is generally between 5~50m, the selection of the head is mainly to see the difference between water pressure. As head of 35m as an example, if the inlet height of 60m, so the theory of height =60+35=95m, if all pipe closed air conditioning water system, and resistance of the equipment for water is equal to the pressure difference is equal to the pump head to choose your height, and out of the water is the same, the resistance loss of lift all into the water. The calculated resistance loss is needed to pump lift. The resistance component (1) chiller resistance at 60-100kpa (2) water collector resistance in 120-200kpa (3) 20-50kpa (4) air terminal equipment body resistance is generally not less than 40kpa so 100m building the resistance calculation of estimated value = (1) 80kp+ (2) chiller resistance pipe, the collector resistance (140kpa+ 3) air terminal equipment 40kpa+ (4) body resistance 50kp=310kpa safety factor of 10% 320x1.1=341kpa H= P/ (head of pressure water density * acceleration of gravity g =352000/ (10m) X9.8 =34.8m fand) so we head for 35 meters
Specific to calculate pipeline loss in order to know.. According to my experience, feeling that life would be 130 meters -140 meters to 110 meters can fire if the premise is the roof of a pump group
At least 130m guarantee that the top floor customer has 3KG water pressure
