The variable speed control of the chilled water pumps achieves an additional chilled water plant. power savings of around 5% [2]. These systems put even more demands on the variable speed chiller control. system, while not affecting the fixed-speed control system at all. However, the difference in compressor map.
The density of dry air can be calculated using the ideal gas law, expressed as a function of temperature and pressure: where: The specific gas constant for dry air is 287.058 J/(kgÂ·K) in SI units, and 53.35 (ftÂ·lbf)/(lbmÂ·Â°R) in United States customary and Imperial units. This quantity may vary slightly depending on the molecular composition of air at a particular location.
Gas Laws . Pressure or Volume. Constant Temperature; T. Original pressure x Original Volume=Final pressure x Final Volume. P 1 V 1 =P 2 V 2 Isothermic. Pressure or temperature. Constant Volume: V. Original Pressure x Final Temperature=Final Pressure x Original Temperature. P 1 T 2 =P 2 T 1 Isochoric. Volume or Temperature. Constant Pressure P