Chiller plant control and operation ibse.hk

Provide customers with tailor-made solutions

Chiller plant control and operation - ibse.hk

Chiller plant control and operation Ir. Dr. Sam C. M. Hui Faculty of Science and Technology E-mail: [email protected] Dec 2016 SPD5132 Indoor Environment and HVAC Systems

Get Price

Multiple-Chiller-System Design and Control - ibse.hk

Chilled-Water-Plant Basics 4 Some chiller controls can accommodate very little flow variation during machine operation. 2 Other, more sophisticated, chiller controls allow some flow variation. Some chillers can tolerate flow-rate variations of as much as 30 percent per minute or greater, while others can only tolerate up to 2 percent per minute ...

Get Price

SPD5132 Indoor Environment and HVAC Systems - ibse.hk

Chiller plant control and operation 1. Types of chillers 2. Refrigeration systems 3. Chiller performance 4. Chiller plant control [Powerpoint file in PDF format] Video presentation: Refrigeration ...

Get Price

Fundamentals of Water System Design - ibse.hk

© 2007 ASHRAE Hong Kong Chapter Slide 2 Chapter 9: Water Chillers and Load Control 1. Basic water chiller components 2. Refrigeration cycle 3. Heat transfer chiller

Get Price

HVAC water system design and applications - ibse.hk

Part 3: Site Visit on 8 Jan 2011 (chiller plant at PolyU) Technical visit: PolyU chilled water systems and plants -- 8 Jan 2011 (Sat), 9:30 am - 12:30 pm PolyU, Hung Hom, Kowloon

Get Price

CIBSE Technical Seminar on Chiller Optimisation CIBSE HK ...

19/06/2017  Enquiry: CIBSE HK Secretariat, Email: [email protected] Organised by: CIBSE HK Branch Details: To achieve energy efficient chiller plant operation, other than selection of energy efficient equipment, optimised control of chiller plant operation has also noticeable impact. In the first part of the seminar, Mr. Victor Leung will discuss how to maximise chiller operating efficiency by ...

Get Price

Dynamic Chiller Plant Optimization - energysaving.gov.hk

• Hong Kong has set the target of achieving energy intensity reduction by 40% by 2025 using 2005 as the base . Technical Guidelines on RCx •Key Objective: Enhance the building energy efficiency •Focus on energy consuming equipment/systems that operate properly as design or users’ requirement and to identify some area of improvements (e.g. shifting of system control settings, inaccuracy ...

Get Price

CIBSE Technical Seminar on Chiller Optimisation CIBSE HK ...

19/06/2017  Enquiry: CIBSE HK Secretariat, Email: [email protected] Organised by: CIBSE HK Branch Details: To achieve energy efficient chiller plant operation, other than selection of energy efficient equipment, optimised control of chiller plant operation has also noticeable impact. In the first part of the seminar, Mr. Victor Leung will discuss how to maximise chiller operating efficiency by ...

Get Price

SBS5311 HVACR II - ibse.hk

SBS5311 HVACR II. 1. Introduction to Cooling Tower System (cooling tower’s role in HVAC system, classification, different applications etc.) 2. Cooling Tower Design Consideration (selection, space ventilation, plume issue, sound issue, regulations, standard etc.) 3.

Get Price

Dynamic Chiller Plant Optimization - energysaving.gov.hk

• Hong Kong has set the target of achieving energy intensity reduction by 40% by 2025 using 2005 as the base . Technical Guidelines on RCx •Key Objective: Enhance the building energy efficiency •Focus on energy consuming equipment/systems that operate properly as design or users’ requirement and to identify some area of improvements (e.g. shifting of system control settings, inaccuracy ...

Get Price

IT Wish - Chiller Plant Optimisation and Management by ...

01/08/2018  Chiller Plant Optimisation and Management by Artificial Intelligence (REF : W-0049) Matched IT Solution: Trial Project: Summary and Challenges: This project aims to adopt AI technology to optimise chiller control for energy efficiency. Real-time data collected from the central control and monitoring system (CCMS) on the operation of chillers, cooling towers, water pumps would be of

Get Price

Chiller Plant Control System Development - mitochon.hk

Chiller Plant Control System Development - Mitochon Technology Ltd. Chiller Plant. Control System. It controls and monitors the Chiller Plant System by using user-friendly human machine interface. With its modular design, component based and redundant architecture, it offers a feature-rich and high availability system in industrial environment.

Get Price

Chiller sequencing control with ... - research.polyu.hk

This paper presents a strategy for improving the reliability and the energy efficiency of chiller sequencing control based on the total cooling load measurement of centralized multiple centrifugal chiller plants. The improvement is achieved as follows. Firstly, a fused measurement of building cooling load is used to replace the direct/indirect measurement. Secondly, the maximum cooling ...

Get Price

Chiller Best Practices VSD

Manufacturers are under continual pressure to control costs without affecting operations or worker comfort and safety. Because energy ranks as one of the largest operating expenses, improving energy efficiency of mechanical cooling systems is one of the best ways to reduce operating costs. In a typical water-cooled chiller plant, the chiller itself accounts for most of the energy consumption ...

Get Price

Applications Engineering Manual - Trane

Chiller Plant System Performance ..... 24 System Design Options ... † Controls that coordinate the operation of the mechanical components together as a system In most cases, the chiller’s purpose is to make water colder. Some chillers cool a mixture of water and other chemicals, most commonly added to prevent freezing in low-temperature applications. Other additives may be used to modify ...

Get Price

Consulting - Specifying Engineer Control sequences for ...

20/01/2012  This is a critical function of chiller efficiency. A stable condenser water temperature will result in consistent chiller operation and efficiency. Another added control feature is to have the leaving water temperature reset based on the outdoor air wet bulb temperature. This may require the tower fans to operate longer. The offset would be higher efficiency at the chillers, resulting in a net ...

Get Price

Chiller Plant Optimization: Improving On Variable Primary ...

02/11/2016  As the plant goes from one- to two-chiller operation — and depending on which chillers and pumps are selected to operate — chilled water flow between the chillers can vary from 10% to as much as 45%. If a large enough flow imbalance exists, the chiller with the greater flow takes on more of the load as the other chiller lags behind in sharing the load. As flow increases further due to ...

Get Price

IT Wish - Chiller Plant Optimisation and Management by ...

01/08/2018  Chiller Plant Optimisation and Management by Artificial Intelligence (REF : W-0049) Matched IT Solution: Trial Project: Summary and Challenges: This project aims to adopt AI technology to optimise chiller control for energy efficiency. Real-time data collected from the central control and monitoring system (CCMS) on the operation of chillers, cooling towers, water pumps would be of

Get Price

HK EE NET - Air Conditioning System Emerging EE air ...

The All Variable Speed Chilled Water Plant Control (VSCWPC) methodology is a new control technology for determining the best operation sequence and loading of equipment of a chiller plant with respect to the kW/ton characteristics curves. The operating principle of VSCWPC is, by means of demand base control, to optimize the operation of the chillers, chilled water pumps, condensing water pumps ...

Get Price

Chiller sequencing control with ... - research.polyu.hk

This paper presents a strategy for improving the reliability and the energy efficiency of chiller sequencing control based on the total cooling load measurement of centralized multiple centrifugal chiller plants. The improvement is achieved as follows. Firstly, a fused measurement of building cooling load is used to replace the direct/indirect measurement. Secondly, the maximum cooling ...

Get Price

Chiller Best Practices VSD

Manufacturers are under continual pressure to control costs without affecting operations or worker comfort and safety. Because energy ranks as one of the largest operating expenses, improving energy efficiency of mechanical cooling systems is one of the best ways to reduce operating costs. In a typical water-cooled chiller plant, the chiller itself accounts for most of the energy consumption ...

Get Price

Robust chiller sequencing control for central chilling plant

The robust chiller sequencing control strategy is validated using the dynamic simulation of the central chiller plant in a high-rising building in Hong Kong. Original language: English: Title of host publication: Proceedings of 2009 7th Asian Control Conference, ASCC 2009: Pages: 660-665: Number of pages : 6: Publication status: Published - 11 Dec 2009: Event: 2009 7th Asian Control Conference ...

Get Price

Applications Engineering Manual - Trane

Chiller Plant System Performance ..... 24 System Design Options ... † Controls that coordinate the operation of the mechanical components together as a system In most cases, the chiller’s purpose is to make water colder. Some chillers cool a mixture of water and other chemicals, most commonly added to prevent freezing in low-temperature applications. Other additives may be used to modify ...

Get Price

Centrifugal Water Chillers - Trane Hong Kong

chiller plants. It can control the operation of the complete installation: chillers, pumps, cooling towers, isolating valves, air handlers and terminal units.Trane can undertake full responsibility for an optimized automation and energy management for the entire chiller plant. The main functions are: † Chiller sequencing: equalizes the number of running hours of the chillers. Different ...

Get Price

Chilled-Water System Decisions - Trane Hong Kong

† series chillers and power consumption † whether to use pressure-independent control valves Primary-secondary system bypass sizing. The premise of a primary- secondary system is to hydraulically separate (decouple) the primary (chiller) flow from the secondary (system) flow. This decoupling prevents the operating pressures of chiller pumps from impacting the operating pressures of the ...

Get Price

Air-cooled Chillers Johnson Controls

Hong Kong, China - English ; Taiwan, China - 繁體中文 ... Efficient operation across all cooling-load and ambient temperature conditions. Reliable Decades of proven technology installed globally, backed by the largest HVAC parts and service network. Screw Chillers. YCIV Variable Speed Drive Screw Chiller. This chiller offers superior control and efficiency, helping to drive down costs. 150 ...

Get Price

OpenBlue Central Utility Plant - Johnson Controls

Your central plant is likely the biggest contributor to occupant comfort, the biggest supplier of energy—and the biggest consumer of energy. Keep it running at optimum efficiency with the next generation of plant optimization software from Johnson Controls. We build on our innovative OpenBlue digital platform to connect systems and data for intelligent, automated decision-making. See rapid ...

Get Price