Project Implementation
Enman as a one stop company implement various types of energy efficiency project. A business case study is normally performed by Enman’s consultants before implementing such projects.
Enman provides project management services and takes the turn key responsibilities to implement energy management projects.
Over a number of years Enman has developed expertise and technology to implement energy efficiency project. These products are:
Energy Management Control Systems
Power Factor Controll
Energy Management for Motor System Efficiencyy
Project Management / Implementation:
Enman takes the turnkey responsibility to implement energy management projects.
Should the client want to manage their own project, Enman can provide technical assistance to ensure that the system is designed properly and saving can be realised.
Industrial Energy Management System
This
is the third generation Enertrol, well proven industrial energy management
system breaking new grounds in control and utility service automation
systems. The Enertrol provides all the monitoring and automation facilities
of a conventional industrial energy management system and provides today's
best practices to manage, optimise and control energy consumption.
In addition, it provides utility service equipment with increased operating
lifetime and reduced maintenance costs.
Monitoring System:
Enertrol's standard monitoring display, allows you to monitor the present and past status of the building. Some of these displays are:
- Picturesque
graphic representation of the plant
- Status
and control monitoring displays.
- Trends-
Present and historical trends
- Alarms-
Acknowledged and unacknowledged
- Reports
All the displays are in printable format.
Automation System:
The complete utility service facilities can be automated and controlled by the system. This provides control of:
-
Refrigeration
-
Chillers
-
Air
Compressors
-
Boilers
-
Pumps
-
Fans
-
Lights
etc.
Control Function:
Control functions are tailored for your requirements. They are proven, ergonomically designed and developed with a view to building energy efficiency and improved equipment operation. Some of these control functions are:
- Electricity
and Gas Metering.
- Demand
Management and Control
- Air
Compressor Optimal Control
- Boiler
Management and Control
- Cool
Room Monitoring and Control
- Intelligent
Time Scheduling
- Lighting
Control
- Plant
Air-Conditioning Control.
System Architecture:
Enertrol industrial energy management system is an open system architecture which is based upon a PLC and SCADA system. The user can select their own choice of hardware and SCADA package.
This is the third generation Enertrol, well proven building energy management system breaking new grounds in control and building automation systems. The Enertrol provides all the monitoring and automation facilities of a conventional building management system and provides today's best practices to manage, optimise and control energy consumption.
In
addition, it provides building service equipment with increased operating
lifetime and reduced maintenance costs.
Monitoring System:
Enertrol's standard monitoring display, allows you to monitor the present and past status of the building. Some of these displays are:
- Picturesque
graphic representation of the plant
- Status
and control monitoring displays.
- Trends-
Present and historical trends
- Alarms-
Acknowledged and unacknowledged
- Reports
All the displays are in printable format.
Automation System:
The complete utility service facilities can be automated and controlled by the system. This provides control of:
-
Chillers
-
Compressors
-
Pumps
-
Fans
- Lights
-
Regulatory
control such as room temperature control
Control Function:
Control functions are tailored for your requirements. They are proven, ergonomically designed and developed with a view to building energy efficiency and improved equipment operation. Some of these control functions are:
- Chiller
Optimal Control
- Feed
Forward Variable Speed of Fan Control
- Cooling
Tower Optimal Control
- Optimal
Start of Air-Conditioning System
- Night
Purge
- Economy
Cycle
- Electricity
Demand Management & Control
- Intelligent
Time Scheduling
System Architecture:
Enertrol building energy management system is an open system architecture, which is based upon a PLC and SCADA package. Alternatively it can use a standard building management system supplied by different instrumentation and control system companies.
Energy Management System (EMS) For Air Compressor Plant:
Enman as a leading energy management system supplier provides systems for air compressors as a stand alone system or along with other industrial process and utility plants, such as refrigeration, chillers, boilers etc systems.
Enman's air compressor energy management system goes beyond conventional control systems by providing:
- Automation
- Optimal
control
- House keeping data logging function
Automation
The EMS provides full automation to start/stop and loading of the compressors.
Besides compressor automation it provides automation of auxiliary equipment
such as cooling tower, fans, pumps, etc.
Optimal
control
Optimal compressor control is the key to success for energy conservation,
reduced run hours and maintenance costs. Enman's energy management system,
selects and loads compressor based on air demand and performance of
each compressor whereas conventional energy management systems operate
on lead/lag and compressor loading. The benefit of Enman's EMS is that
it maximises energy saving and minimises compressor run hours to a greater
extent than conventional control systems.
House
Keeping
Enman's house keeping functions are:
-
Air leakage index. This helps you to monitor leakage in order to maintain
economical performance.
- It provides daily air demand with hourly demand profiles. This helps management to identify the misuse of air and take corrective action.
Saving
The energy saving can vary depending on the number and type of compressors
being used and the current control system.
Energy saving from 10 to 25% are achievable together with 10 to 30% reduction in maintenance costs. Centrifugal compressors are most critical in their operation and selection, and therefore provide more opportunities for energy conservation.
System
Configuration
The control system is based on a PLC and SCADA package. The customer
can select the make of PLC and SCADA package as a part of standardisation
of the plant. The PLC can control the compressors either electrically
hard wired or serial communication or combined together as shown below
which is a typical control system provided by Enman to large air compressor
plants.
Economy
The pay back time of such a system varies from 1 to 3 years depending
upon the energy consumption, the number and type of compressors and
the level of existing instrumentation and control system.
-
Flash Steam heat recovery
-
Heat recovery from process waste heat
-
Economiser
-
Condensate return
-
Air preheater
Complex heat recovery systems require a technical study, which includes energy and mass balance and a detailed design.
The above flash steam heat recovery system is a unique design by Enman implemented in the food industry.
Power Factor Correction Equipment
Why Power Factor Control?
Power Factor Control is used to reduce electricity supply demand cost when the network electricity tariff is based on actual supplied power (kVA), and not on actual used power (kW). Raising the Power Factor lowers the Demand (kVA), and hence this reduces the cost of electricity.
A Power Factor regulator keeps track of the Power Factor and automatically switches capacitors in and out as the load on the installation varies.
Besides electricity cost reduction, the Power Factor Controller will allow you to install additional machinery without expensive switchboard upgrades, when there is limited power supply capacity.
A New Approach To Power Factor Control:
This uses the latest technology microprocessor based
controller which monitors the Power Factor and controls capacitor
banks, to increase or decrease Power Factor and maintain a preset
Power Factor. As an option, the controller can also monitor and
control electricity demand through load shedding or an alternative
intelligent method of control. This provides more saving than just
a Power Factor Control.
Consultation Service:
Enman provides a comprehensive technical and economic analysis for
both Power Factor and demand control. This includes an analysis of
the demand, power factor, and electricity distortion level. The
analysis will provide information to design and estimate the cost
of the system. A saving analysis will provide estimated
electricity cost reduction for both Power Factor and electricity
demand.
A Cabinet Made To Your Choice
We are able to cater for the specific needs of your organisation.
The following two choices are available at your request:
1. A complete cubicle, fully wired and tested, with all required protection and control, that is ready for installation.
2. Alternatively, a fully tested frame containing capacitors, contactors, and fuses, ready for installation into your own cubicle.
Power Factor Correction For Distorted Power
Harmonic detuning reactors are used when there are high harmonic levels. A typical tuning frequency is 189 Hz. This prevents the Power Factor system from 'resonating'. Harmonics are generated from variable speed drives, induction furnaces, static UPS systems, and virtually any equipment that draws a non-linear current.
Cooling
Adequate air movement around the capacitors is essential for long life operation. Larger capacity Power Factor Controlers are provided with fan forced cooling. The tall and thin cylindrical capacitors, housed in aluminium cases, are most suited to Australia's high temperature areas. The capacitors use the latest self healing technology, with a very low energy loss.
Commissioning
All systems are thoroughly checked before leaving the factory, to maximise the life of the equipment.
The following check-ups are made prior to installation:
1)Power and Control Connection
2)Insulation Check
3)Primary C.T. and Neutral Connections
4)Application of Power and Relay Set-Up
A Power Factor Correction equipment commissioning report is made available after commissioning the Power Factor Controller.
Maintenance
Enman offers regular preventative maintenance to ensure long life of the equipment and maintenance on failure of the Power Factor Controller.
Energy Management for Motor System Efficiency
Electric
drives are by far the largest single user of electricity in industry
and commercial buildings. Their maintenance is vital to an energy management
program.
How energy efficiency can be improved:
-
Maintenance
- Alignment and balancing
- Proper design and maintenance of belt drive such as belt tension, over or under belting
-
Power Supply quality
- Supply voltage
- Harmonics
- Balanced power supply
-
Motor sizing. An oversize motor can reduce motor efficiency.
-
Rewind motors. This can substantially reduce energy efficiency of the motors.
-
Use high efficiency motors
Consultation Services:
-
Enman provides an energy management program for your motor drive, which includes:Condition monitoring
-
Servicing motor drives to improve efficiency, which are:
- Laser alignment and balancing drives
- Belt tensioning
-
Develop an ongoing energy management program for drives, such as:
- Rectifying power quality
- Use high efficiency motor
- Avoiding/reducing rewind of burnt motor
Phone: 61-3-9877 2266 Fax: 61-3-9894 1911 Free Call: 1800 68 68 65
E-mail: enman@enman.com.au