Experience

Enman's experience and expertise in the field of energy management, control system and plant upgrades are outstanding, providing their services to over 800 customers in Australia and overseas. These services range from feasibility study to project implementation with innovative design. Enman has also conducted substantial research and development on innovative energy management control system technologies, which are extensively utilised in commercial buildings and industries with great success.

Enman’s services

• Technical or feasibility study
• Business case development
• Plant upgrade
• Project engineering and management
• Project implementation
• Energy performance contracting
• Energy audit
• NABERS assessment
• Measurement and verification under the ‘International Performance Measurement and Verification Protocol’

Enman’s expertise

• Project engineering and management for major projects, including turnkey supply for
• Control system upgrade BMS/EMS including field equipment
• Variable speed drive, control and optimisation
• Chiller system upgrade
• Boiler system upgrade
• HVAC upgrade
• LED lamps and lighting upgrade
• Room management system
• Co/Tri generation
• Assist in government subsidies and funding
• Assist in Carbon trading

Enman’s Product

Energy management control system

Energy management control system (EMS) is the ultimate control optimising the building and plant operation, monitoring, reporting and housekeeping to reduce energy consumption. Enman’s energy management control system is state of the art cutting edge technology, which can provide 15-30% energy and carbon reduction of the building.

Features

• Chiller optimal control and performance monitoring
• Advanced optimal control of variable speed drives for all pumps, fans, plant and equipment
• Advanced HVAC control
• Demand management and control
• Energy performance

Building management system

Enman is a system integrator and authorised dealer of the Tridium based Niagara BMS. This is a state of the art non-proprietary BMS system which can be maintained or serviced by many companies. Enman has implemented a large number of Niagara BMS in hotels, office building and shopping centre. The BMS display is ergonomically designed with hierarchy of control for ease and effective control of the building operation.

Enman’s promise

Energy reduction up to 50% depending upon current energy efficiency

Benefit

Higher energy saving from conventional control reducing your carbon foot prints further and demand reduction.

 

Enman’s recent experience in the Hotel/Commercial buildings

 

Stamford Plaza Hotel, Melbourne

Enman is currently working on the upgrade of the mechanical services, control system and are also implementing an energy management control system with guaranteed energy savings. The upgrade consists of;

• Replace existing chillers with four state an utmost energy efficient and environmentally friendly chillers
• Replace existing atmospheric boilers for building heating and domestic hot water with energy efficient modular condensing boilers
• Replace the existing BMS with a non-proprietary state of the art web based Niagara BMS
• Implement Enman’s long proven and cutting edge technology to optimise and control the HAVC plant including VSDs for major drives.

This project has been registered for the Emission Reduction Fund

 

Victoria Hotel, Melbourne

This project is a registered ERF project for carbon credit.

This is an energy efficient old hotel with a decentralized chiller, boiler and air-conditioning system.

Enman are currently working on the improvement of the HVAC system to improve energy efficiency and provide increased reliability and redundancy of the HVAC system.

The upgrade includes;

• Interconnecting chillers and boilers
• HVAC modification including natural air cooling
• Implement a web based non-proprietary state of the art BMS called the Niagara system with Easy IO
• Enman’s state of the art technology energy management control system

 

The Oaks Hotel, Market Street – Melbourne

Enman is currently implementing a hotel energy management control system. This project was initiated with the guarantee of energy savings and is also registered for the Emission Reduction Fund.

The hotel has a very unique HVAC system with a centralised chiller plant room cooling a large number of air-conditioning units for both the heating and cooling cycle.

The project consist of;

• Implantation of state of the art web based Niagara BMS
• Variable speed drives for electric motors
• Energy management control system to optimise the energy use in the HVAC system

 

The Oaks Hotel, Collins Street – Melbourne

Enman is currently implementing a hotel energy management control system to reduce the energy use of the hotel. This project was initiated with the guarantee of energy savings and is also registered for the Emission Reduction Fund.

The upgrade includes;

• Replacing the old BMS with a web based non-propriety Niagara BMS
• Variable speed drives for major motors
• Implementing Enman’s energy management control system with curing edge technology for HVAC optimisation and demand management
• Room management system with occupancy sensors. The rooms are heated and cooled via split system air conditioning

 

Sheraton on the Park Hotel, Sydney

Enman conducted an energy efficiency study/audit of the hotel and assisted the hotel to apply for the Green Building Fund, which was granted.

Enman was appointed Project Engineer and Manager for implementation of the following energy efficiency projects:

• Energy management control system
• Chiller upgrade: Replacing existing old chiller with a modern state of the art new chiller with variable speed drive
• Replacing old BMS with a new BMS
• Variable speed drive for
  • Pumps: Chilled water, condenser water and hot water pumps
  • Fans: AHU, Exhaust, car park and Cooling tower fans
• HVAC upgrade to improve economy cycle
• Chiller optimal control

The detail of the project can be viewed in the following case study.

Refer: Hotel Engineering Journal Volume 17.1
http://issuu.com/adbourne/docs/hotel_enginneer_17_1_issuu

 

Shangri La Hotel, Sydney

Enman conducted energy efficiency study of the hotel and assisted the hotel to apply for the Green Building Fund, which was successfully granted. Enman was appointed Project Engineer and Manager for implementation of the following energy efficiency projects:

• Chiller upgrade: Replacing old chiller with the state of the art new chiller with variable speed drive
• Cooling tower upgrade
• Enman’s ‘ENERTROL’ Energy management control system
• Variable speed drive optimal control for Pumps: Chilled water, condenser water and cooling tower fans
• Lamp upgrade: replace dichroic down lamps with LED lamps
• Room management system

http://www.enman.com.au/PDF/Shangri-La_Case-Study.pdf

 

Holiday Inn, Mascot

Enman conducted an energy efficiency study/audit of the hotel, and the hotel was provided with a grant from the Green Building Fund. Enman was awarded the contract for turnkey supply of all the projects. Energy efficiency projects implemented are:

• Enman’s ‘ENERTROL’ Energy management control system
• BMS: Replacing the old discrete analogue controller with a new state of the art non-proprietary (Niagara) BMS
• Variable speed drive for
• Pumps: Chilled water, condenser water and hot water pumps
• Fans: AHU, Exhaust, car park and Cooling tower fans
• HVAC upgrade to introduce economy cycle
• Chiller optimal control.
• Chiller upgrade

Energy saving: Achieved energy saving is around 24% of electricity use.

http://www.adbourne.com/hotel-eng.html

 

Mercure Hotel Sydney

Enman conducted an energy efficiency and technical study to upgrade the HVAC and implement VSD’s, BMS and Enman’s ‘ENERTROL’ energy management control system for the hotel.

Enman was awarded the turnkey supply for the entire range of energy efficiency projects on its merits with a guaranteed energy saving. These projects are:

• HVAC upgrade to introduce enthalpy based economy cycle and demand based fresh air intake
• Implementation of VSD with advanced control
• Implementation of a non-proprietary (Niagara) building management control system (BMS)
• Energy management control system (EMCS) to provide optimal chiller, cooling tower, HVAC and variable speed drives. EMCS also provides demand management and control with comprehensive energy reporting system.
• Energy saving: over 21% of electricity use of the hotel.

http://www.enman.com.au/PDF/MercureHotel.pdf

 

Rydges central hotel, Sydney

Enman conducted an energy efficiency and technical study to upgrade the HVAC and implement VSD’s, BMS and Enman’s ‘ENERTROL’ energy management control system for the hotel. Enman was awarded the turnkey supply for the entire range of energy efficiency projects on its merits with a guaranteed energy saving. These projects are:

• HVAC upgrade to introduce enthalpy based economy cycle and demand based fresh air intake
• Implementation of VSD with advanced control
• Implementation of a non-proprietary (Niagara) building management control system (BMS)
• Energy management control system (EMCS) to provide optimal chiller, cooling tower, HVAC and variable speed drives. EMCS also provides demand management and control with comprehensive energy reporting system.

 

Grand Hyatt Hotel, Melbourne

• Enman conducted energy audit of the hotel
• The hotel was awarded a grant from DIIRD, Victoria
• Enman was awarded the contract for turnkey supply of all the projects
• Energy efficiency projects implemented are Enman’s ‘ENERTROL’ Energy management control system
  • BMS: Upgrade old BMS
  • Variable speed drive for
• Pumps: Chilled water, condenser water and hot water pumps and cooling tower fans
  • Fans: AHU, Exhaust, car park and Cooling tower fans
• HVAC upgrade to introduce economy cycle
• Field equipment upgrade
• Cooling tower optimal control
• Demand management system

 

Marriott Hotel, Melbourne

• Enman conducted energy efficiency study of the hotel
• The hotel was awarded a grant from DIIRD, Victoria
• Enman was awarded the contract for turnkey supply of all the projects
• Energy efficiency projects implemented are
• Enman’s ‘ENERTROL’ Energy management control system
• Upgrade the existing BMS and field equipment
• Variable speed drive for
  • Pumps: Chilled water, condenser water and hot water pumps and cooling tower fans
  • Fans: AHU, Exhaust, car park and Cooling tower fans
• HVAC upgrade to introduce economy cycle
• Chiller optimal control
• Cooling tower optimal control
• Demand management system

Energy saving: The achieved energy saving is over 21% of electricity use

 

Crowne Plaza Hotel, Melbourne

• Enman conducted energy efficiency study of the hotel
• The hotel was awarded a grant from DIIRD, Victoria
• Enman was awarded the contract for turnkey supply of all the projects
• Energy efficiency projects implemented are;
• Enman’s ‘ENERTROL’ Energy management control system
• BMS: Replacing the old discrete analogue controller with a new BMS.
• Variable speed drive for
  • Fans: AHU, Exhaust, car park and Cooling tower fans
• HVAC upgrade to introduce economy cycle
• Demand management system

 

Four Points by Sheraton, Sydney

Enman conducted an energy audit and identified a large number of energy saving opportunities.

Hot water space heating system:

Enman implemented the hotels outside air heating system with a gas fired hot water recirculation system. This system is operating successfully reducing the electric heating of the hotel and improving the comfort level.

Hot water pumping system

 

Enman’s recent project experience in other commercial buildings

Second phase development of 440 Elizabeth St, Melbourne

Enman has just finished the second phase plant upgrade of the building. Scope of this development is

• Replace ageing chillers with the state of art high energy performance Powerpax chillers with VSD.
• Replace ageing hot water boilers with state of art high energy performance modular BAXI condensing boiler.
• New Standby hot water circulation pumps with VSD.
• Replace the old BMS with the state of art Tridium/Niagara system integrating with the existing Enman’s energy management control system

 

Powerpax Chillers

• 
  BAXI modular condensing boilers
• 
  Standby hot water pump

Benefits:

• Energy efficiency if chillers has been increased by 250%
• Boiler efficiency improvement over 25%
• Improved redundancy and reliability

 

440 Elizabeth St commercial building- First phase development

Enman conducted an energy audit of the office building and assisted application to Green Building Fund for a grant, which was awarded.

Enman was awarded the project for the turnkey supply and implementation.

Energy efficiency projects implemented are:

• Enman’s ‘ENERTROL’ Energy management control system
• BMS: Replacing the old discrete analogue controller with a new proprietary BMS
• Upgrading the Air Handling System to introduce economy cycle control
• Variable speed drive for all pumps and fans

Energy saving: The achieved energy saving is over 40% of electricity use

http://www.enman.com.au/PDF/New/Enman%2020Green%20Building%20Fund%20case%20study.pdf

Enman is currently working as project manager for the building upgrade as follows.

• Chiller system upgrade. The old chillers are being replaced with the state of art chiller with variable speed drives.
• The old hot water boilers. These are being replaced with state of the art modular condensing type hot water boilers
• HVAC upgrade. Improve the A/C system to improve the comfort level of the tenant.
• Upgrading the old proprietary BMS to a new non-proprietary Niagara BMS to accommodate the new optimisation technique of chiller and boiler control.

Expected energy saving: over 25% from the last update of the base building

 

Northcote Shopping Centre

Enman is proud to be the project manager and instigator of this major upgrade of the shopping center, which can claim to be the most energy efficient, with state of the art of modern technology.

Enman conducted an energy audit and NABERS assessment of the shopping center to upgrade the shopping center Heating ventilation system (HVAC) and control system.

The owner’s corporation decided to go along with the recommended plant and control system upgrade and engaged Enman as the project engineer and manager for the entire upgrade.

Energy efficiency projects implemented are:

• Rationalisation and upgrade of the chiller, AHU and packaged air conditioning system with the state of the art centralised chiller system and replacing DX system with an energy efficient chilled water system
• Replacing an old gas fired boiler with a condensing type hot water boiler
• Energy management control system with optimum control of chiller, fans, HVAC and VSD with demand management, performance monitoring and reporting.
• BMS: Replacing the old discrete analogue controller with a new state of the art Niagara BMS
• Variable speed drive: Chilled water pumps and supply air Fans
• HVAC upgrade to introduce economy cycle.

This major development was instigated by the management for the following criteria:

• The life cycle of the HVAC, Chiller and Boiler plant
• Reduced maintenance costs and reliability issues
• Noise level reduction for the nearby apartments
• Energy saving.

 

Cardinia Council Aquatic Centre, Pakenham

Enman has conducted energy audits for a large number of council buildings including their aquatic centres. Enman was appointed Project Manager, Designer and verifier for the major energy efficiency upgrade of the aquatic center which was funded by CEEP. These projects are:

• Cogeneration system
• Lighting upgrade: Replace high bay lamps of the sport center with LED lamps, Fluorescent lamps with LED tubes
• Power factor controller
• Variable speed drive
• Heat pump
• BMS control.

 

Ashburton City Council

Enman conducted energy audits of all the building sites. Enman worked on the business case development for the co-generation project for the aquatic center. Enman assisted in writing the technical specification for the co-generation project.

 

City of Melbourne

Enman was appointed as an energy consultant for their ‘Savings in the City program’ services provided are;

• Energy audits for a large number of leading business hotels in the CBD area
• Develop the ‘Green hotels Toolkit’ for the savings in the city program

http://www.melbourne.vic.gov.au/enterprisemelbourne/environment/Documents/EnergyWiseHotels.pdf

 

Kings Technology Park Buildings

100 Dorcas Street, South Melbourne Office Building E

Enman conducted a technical study for the rationalisation and upgrade of the chiller, AHU and packaged air conditioning system with the state of the art centralised chiller system, replacement of the DX system with a chilled water system and assistance to apply for the Green Building Fund, which was granted.

Enman was appointed as Technical Advisor and Manager for implementation of the project.

Energy efficiency projects implemented are:

• Chiller upgrade: Replacing old chiller with an energy efficient chiller
• Enman’s ‘ENERTROL’ Energy management control system with optimum control of chiller, fans, HVAC and VSD with demand management and performance monitoring and reporting
• BMS: Replacing the old discrete analogue controller with a new state of the art BMS
• Variable speed drive: Chilled water pumps and supply air fans
• Variable speed drive for:
  • Pumps: Chilled water, condenser water and hot water pumps
  • Fans: AHU, and Cooling tower fans
• Lighting upgrade with LED lamps.

Energy saving: The achieved energy saving is 43% of electricity use.

 

80 Dorcas Street, South Melbourne, Office Building D

• Dichroic lamp replacement
• Energy efficient AHU
• Enman’s ‘ENERTROL’ Energy management control system with optimum control of chiller, fans, HVAC and VSD with demand management and performance monitoring and reporting
• BMS: Replacing the old discrete analogue controller with a new state of the art BMS

Energy saving: The achieved energy saving is 31% of electricity use.

 

111 Coventry Street, South Melbourne Office Building A

Enman conducted a technical study for rationalisation and upgrade of the chiller, AHU and packaged air conditioning system with the state of the art centralised chiller system, replacement of the DX system with a chilled water system, and assistance to apply for Green Building Fund, which was granted.

Enman was appointed as Technical Advisor and Manager for implementation of the project.

Energy efficiency projects implemented are:

• Chiller upgrade: Replacing old chiller with an energy efficient chiller
• Enman’s ‘ENERTROL’ Energy management control system with optimum control of chiller, fans, HVAC and VSD with demand management and performance monitoring and reporting.
• BMS: Replacing the old discrete analogue controller with a new state of the art BMS
• Variable speed drive: Chilled water pumps and supply air fans
• Variable speed drive for:
  • Pumps: Chilled water, condenser water and hot water pumps
  • Fans: AHU, and Cooling tower fans
• Lighting upgrade with LED lamps.

Energy saving: The achieved energy saving is 43% of electricity use.

 

99 Coventry Street, South Melbourne Office Building B

Enman conducted a technical study for rationalisation and upgrade of the chiller, AHU and packaged air conditioning system with the state of the art centralised chiller system, replacement of the DX system with a chilled water system, and assisted to apply for Green Building Fund, which was granted.

Enman was appointed as Technical Advisor and Manager for implementation of the project.

Energy efficiency projects implemented are:

• Chiller upgrade: Replacing old chiller with an energy efficient chiller
• Enman’s ‘ENERTROL’ Energy management control system with optimum control of chiller, fans, HVAC and VSD with demand management and performance monitoring and reporting
• BMS: Replacing the old discrete analogue controller with a new state of the art BMS
• Variable speed drive: Chilled water pumps and supply air fans
• Variable speed drive for
  • Pumps: Chilled water, condenser water and hot water pumps
  • Fans: AHU, and Cooling tower fans
• Lighting upgrade with LED lamps.

Energy saving: The achieved energy saving is 31% of electricity use

 

1 Queens Road Commercial building

Enman conducted an energy efficiency study of the office building.

The building was awarded a grant by the Green Building Fund.

Enman was awarded the project for the turnkey supply and implementation.

Energy efficiency projects implemented are:

• Enman’s ‘ENERTROL’ Energy management control system
• BMS: Replacing the old discrete analogue controller with a new non-proprietary (Niagara) BMS
• Chiller optimal control
• Lighting upgrade with LED lamps.

 

22 William Street commercial building

Enman conducted an energy efficiency study of the office building.

The building was awarded a grant by the Green Building Fund.

Enman was awarded the project for the turnkey supply and implementation.

Energy efficiency projects implemented are:

• Enman’s ‘ENERTROL’ Energy management control system
• BMS: Replacing the old discrete analogue controller with a new state of the art non-proprietary (Niagara) BMS
• Upgrade the Air handling system to introduce economy cycle control
• Replace old supply fans with energy efficient fans
• Lighting upgrade with LED lamps.

 

CSL

Enman conducted an energy audit of all major sites and assisted in implementation of a large number of energy saving projects. Some of these projects are:

• Heat recovery
• Cooling tower control system upgrade with Variable speed drive in pumps and CT fans
• Chiller upgrade
• Others.

 

Boeing Aerostructure Australia

Enman conducted energy audit of all major sites and assisted implementing a large number of energy saving projects. Some of these projects are:

• Energy management control system which includes:
  • Chiller system optimal control
  • Air compressor system optimal control
  • Variable speed drive for supply air fans
  • Introduce enthalpy based economy cycle
  • Demand management system
  • Sub- metering
• Thermal system upgrade replacing centralised steam system to distributed steam and hot water system, reducing gas consumption by more than 30%.
• Cooling tower upgrade replacing old cooling tower with an energy efficient cooling tower.

 

Kellogg Australia Pty Ltd

Enman conducted energy audits of all major sites and assisted in implementation of a large number of energy saving projects with a government grant from DEUS NSW. Some of these projects are:

• Boiler control system upgrade with Oxygen trim, VSD for combustion fan, Feed water pump, performance monitoring.
• Compressed air system optimal control with performance monitoring
• Chiller optimal control with VSD for pumps
• VSD for site fresh water reticulation system
• Office air-conditioning optimal control with VSD for supply air fans and introduction of economy cycle
• Demand management system
• Sub-metering system
• Power factor control improvement.

 

Dong Suh Foods, South Korea

Enman conducted the energy audit to assist the Dong Suh Food industry to improve its energy efficiency.

Dong Suh engaged Enman to provide technology transfer and assist in energy efficiency projects. These projects are:

• Air compressors
  • Automated control and optimal control of air compressors to meet demand
  • Monitoring of key performance indices such as
    • Air leakage index
    • Utilisation factor
    • Energy index (Nm3/kW)
• Chillers and pumps
  • Optimal selection of chillers
  • Fully automated control of chillers and pumps
• Cooling tower fans and pumps
  • Optimal cooling tower control
  • Optimal cooling tower pumping system control
• Demand management system
  • Monitoring of demand and electricity consumption
  • Demand prediction to provide information to reduce demand cost
  • Comparison of energy target with actual consumption.

 

Primo Small goods, NSW

Enman conducted energy audits of all major sites and assisted in implementation of a large number of energy saving projects with a government grant from DEUS NSW. Some of these projects are:

• Boiler control system upgrade with Oxygen trim, VSD for combustion fan, Feed water pump, performance monitoring.
• Compressed air system optimal control with performance monitoring
• Refrigeration system optimal control with VSD for condenser fans
• Heat recovery from refrigeration system
• VSD for site booster fresh water reticulation system
• Demand management system