8/9/2019 Clculo Economia Ar Comprimido
1/5
Compressed Air Systems
Esta planilha utilizada para calcular o potencial de economia de
energia e U
reduzindo a temperatura de entrada do ar, a presso de operao ou
reparando vazamentos de ar.
Electricity costs 0.08 $/!h
Compressor rating "8 !
Running hours per year #000 h
1. Energy savings from reduced intake air temperature
emperature at compressor air intae %#
emperature o& alternate air suppl' (ie e)ternal to
compressor *uilding+ "8
Energy savings as a % of compressor energy costs ".%
$ Saving "-.% $ per 'ear
2. Energy savings from reduced operating pressure
perating air pressure -00 a
1e2 operating air pressure (ie a&ter lea repairs or 3"#
areduction in pressure drops across s'stem, *alancing o&
load+
Energy savings as a % of compressor energy costs 3.0
$ Saving #-8.0 $ per 'ear
. Energy savings from repair of leaks
S'stem operating pressure 4#0 a gauge
5ea size " mm
6ir loss 3 5/s
otal air loss per 'ear -3,-"4
Savings i& air leas repaired 44- $ per 'ear
o7
o7
!A oC drop in temperature represents a 1% saving in energy"
!1## ka drop in pressure represents an % saving in energy"
(assume temperature at "0o7+
m%/'ear
6 m%air lea 2astes 0.# !h o& electricit'
