| SITE SURVEY
Using the latest logging
technology, we will visit your factory and carry out a full in-depth
investigation into the way your production process uses compressed air. We will then compile
and produce a report and offer
recommendation on ways to improve the energy efficiency, reduce the servicing
costs and improve the reliability of the equipment, thus leading to a direct increase in your company profits.
Compressed
air plays a fundamental role in your production process and as the operation is
continuous the supply of high quality, reliable compressed air is both critical
and costly.
With
this in mind, Anglian Compressors and Equipment Limited has developed a number of tools that
are designed to identify ways to reduce your
operating costs.
It is not generally recognised that compressed air
represents approximately 10% of all industrial electricity usage and is present
on virtually all industrial sites. It is
however generally recognised that most compressed air systems operate very
inefficiently and savings of up to 40% of the annual operating costs can be
achieved, by a number of methods.
Typically these are:-
- by identifying and repairing air leaks
- by identifying
the inefficient use of the compressed air
- by identifying
inefficient equipment producing the
compressed air
- by showing that
the air sytem is operating at to high a pressure
- by showing that
the pipework system is poorly designed or undersized pipe-work
system
Traditionally
compressors have been purchased based on either purchase cost, or association
with existing suppliers. With current
energy costs increasing and government taxation on energy there is a far
greater need to take the energy efficient option as the prime
consideration.
In
most compressed air systems we find, the energy cost over a single year can
be up to 150% of the capital purchase price of the installed compressor, so
savings of up to 40% per year on electrical energy can be substantial.
The
survey that we will carry out will establish the operating pattern of your
compressed air system over a typical 7-day period. With the collected data we can analyse the
system operation and make recommendations, which will improve your system
reliability and efficiency.
Method of
Investigation
The type of equipment that
may have been used to carry out monitoring and logging of your system
Mass
flow measurement meter
Leak detection equipment
Power meter monitors
Compressor load logger box (ME BOX)
Below we have illustrated the air flow over
a typical system over the measurement
period.

Benefits
from the survey are:-
1. A
clear understanding of your compressed air usage
2. A
potential understanding of the amount of air being wasted on air leaks
3. A
factual analysis of how to reduce the compressed air production costs
Below is a sample of the
type of data that can be obtained.
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Total System
|
|
Compressor information
|
455
|
6075
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
FAD (1/s)
|
153.8
|
146.3
|
---
|
---
|
---
|
---
|
---
|
---
|
298.1
|
|
Unload Power (kW)
|
16.4
|
15.2
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Load Power (kW)
|
68
|
63
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Unload Pressure (Bar)
|
7.5
|
7.3
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Load Pressure (Bar)
|
7
|
6.8
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Loaded Time (hrs/wk)
|
79.4
|
0
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Unloaded Time (hrs.wk)
|
97.6
|
0.6
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Energy Loaded (kWh)
|
4786
|
0
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Energy Unloaded (kWh)
|
4671
|
11
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Annual Cost to produce compressed
air @ £0.055 per kWh (Loaded)
|
£13,682
|
£0
|
---
|
---
|
---
|
---
|
---
|
----
|
£13,391
|
|
Annual Wasted Energy
Costs @ £0.055 per kWh unit (Unloaded)
|
£13,359
|
£31.5
|
---
|
---
|
---
|
---
|
---
|
---
|
£13,391
|
|
|
|
|
|
|
|
|
|
|
£27,073
|
By using our simulation
software we can show the following, the system air generation costs can be reduced
by the installation of new energy efficient equipment
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Total System
|
|
Compressor information
|
GA55VSD
|
|
|
|
|
|
|
|
|
|
FAD (1/s)
|
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
172
|
|
Unload Power (kW)
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Load Power (kW)
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Unload Pressure (Bar)
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Load Pressure (Bar)
|
7.0
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Loaded Time (hrs/wk)
|
168
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Unloaded Time (hrs.wk)
|
0
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Energy Loaded (kWh)
|
4589
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Energy Unloaded (kWh)
|
0
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
|
|
Annual Cost to produce compressed
air @ £0.055 per kWh (Loaded)
|
£13,125
|
---
|
---
|
---
|
---
|
---
|
---
|
---
|
£13,125
|
|
Annual Wasted Energy
Costs @ £0.055 per kWh unit (Unloaded)
|
£0
|
---
|
---
|
---
|
---
|
---
|
---
|
|
£0
|
|
|
|
|
|
|
|
|
|
|
£13,125
|
This then gives us an accurate energy saving that
could be obtained by carrying out our recommendations; in this case £13,948 could be achieved every year
|