Abstract: The present invention relates to a method for analyzing energy used for producing a unit of mass or volume of compressed gas (Specific Energy Consumption) in relation to a common output flow in a compressor system, said method comprising the following steps: —for time interval, Tref, collecting reference measured data points of common output flow Fref and energy (or power) consumption Eref (or Pref) in the compressor system; —calculating energy (or power) use as a function of the common output flow Eref (F) (or <Pref>t(F)) from the measured data points and calculating volume output as a function of the common output flow Vref(F): —calculating average energy consumed for producing a unit of mass or volume of compressed gas as a function of the common output flow <SECref>t(F) from equation Eref(F)/Vref(F) (Or <Pref>t)/Pref); —for time interval, Tsav, collecting measured data points of common output flow Fsav and energy (or power) consumption Esav (Psav) in the compressor system; —calculating e

Abstract: The present invention describes a method for gauging energy used for producing a unit of mass or volume of compressed gas (Specific Energy Consumption) in relation to a common output flow in a multiple compressor system, said method comprising: —from a first compressor, constructing an ideal specific energy consumption curve in the first compressor as a function of the output flow of the first compressor; and —from a first compressor and a second compressor, constructing a combined ideal specific energy consumption specific energy consumption curve in the first compressor and the second compressor as a function of the combined output flow of the first compressor and the second compressor, wherein the method involves constructing one or several ideal specific energy consumption curve(s) for multiple combined compressors, in any combination(s), and wherein the method involves creating a theoretical operation model for the multiple compressor system.

Abstract: The present invention provides a method for analyzing, monitoring, optimizing and/or comparing energy used for producing a unit of mass or volume of compressed gas (Specific Energy Consumption) in relation to a common output flow in a multiple compressor system, said method comprising: —collecting measured data of common output flow and energy/power use and calculating the specific energy consumption in the multiple compressor system, —identifying which data points of measured specific energy consumption that affiliate to a certain compressor or compressor combination in the multiple compressor system and/or operating mode(s) of the multiple compressor system; and —plotting the data points of measured specific energy consumption that affiliate to a certain compressor or compressor combination in the multiple compressor system and/or operating mode of the multiple compressor system and marking affiliation of said data points to the certain compressor or compressor combination and/or operating mode.