US 11,841,025 B2
Method for analyzing, monitoring, optimizing and/or comparing energy efficiency in a multiple compressor system
Christian Merheim, Helsingborg (SE); and Anders Sjögren, Lund (SE)
Assigned to ENERSIZE OY, Helsinki (FI)
Appl. No. 16/982,534
Filed by Enersize OY
PCT Filed Mar. 19, 2019, PCT No. PCT/EP2019/056813
§ 371(c)(1), (2) Date Sep. 18, 2020,
PCT Pub. No. WO2019/180003, PCT Pub. Date Sep. 26, 2019.
Claims priority of application No. 201810231363.4 (CN), filed on Mar. 20, 2018; application No. 1850311-0 (SE), filed on Mar. 20, 2018; and application No. 1851209-5 (SE), filed on Oct. 5, 2018.
Prior Publication US 2021/0003137 A1, Jan. 7, 2021
Int. Cl. F04D 25/16 (2006.01); F04C 28/02 (2006.01); F04D 27/00 (2006.01); F04C 23/00 (2006.01)
CPC F04D 25/16 (2013.01) [F04C 23/00 (2013.01); F04C 28/02 (2013.01); F04D 27/001 (2013.01); F04B 2203/0208 (2013.01); F04B 2205/09 (2013.01); F04C 2270/80 (2013.01)] 12 Claims
OG exemplary drawing
 
1. 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 the 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;
plotting the data points of the 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,
wherein an ideal specific energy consumption curve(s) is plotted and each ideal specific energy consumption curve is complemented with another curve visualizing the working limit for each certain compressor or compressor combination in the multiple compressor system, and wherein the curves together form a working area for each certain compressor or compressor combination in the multiple compressor system and
adapting the multiple compressor system based on the data points of the specific energy consumption.