ClimaCheck Energy saving through optimisation CoolCheck Pty Ltd www.CoolCheck.co.za

of the world’s energy is consumed by cooling systems 20% of the world’s energy is consumed by cooling systems IIR (2002)

About ClimaCheck ClimaCheck is performance and efficiency monitoring platform for cooling systems. Invented in 1986 in Sweden it uses a scientific process to identify energy inefficiencies and issues affecting reliability and maintenance costs. The technology was developed and refined and due to growing international demand, the company ClimaCheck was formed in 2004 to service markets worldwide. The process is totally non-invasive and uses raw temperature, pressure and energy data from any vapour compression system (cooling or heat pump) to measure the performance and efficiency. At its core, ClimaCheck provides plant owners and their operators high level key performance indicators and accountability for efficiency and reliability. Thousands of customers around the world trust ClimaCheck - from a mission-critical data centres in North America to a cooling system for a hotel in China of 300MW. CEO and inventor Mr Klas Berglöf

What is it? How does it work? What is it used for? What does it do?

Compared to other systems ?? What is the difference??

Rack / Chiller efficiency and performance Feature Description ClimaCheck Traditional Controls Rack / Chiller efficiency and performance Cooling capacity* (kWR) (1 minute resolution) yes ─ System cooling COP* Condensing/heating capacity* (kW T.H.R) (1 minute resolution) System condensing/heating* COP System Efficiency Index (SEI) (e.g. performance indicator relative to application) System stability automatic detection (e.g. fluctuating LP or HP) kWR(hr) Kilowatt hours of refrigeration (cooling energy consumed by end-user) Oil separator failure (hot gas bypass into oil system) Oil separator condensation (e.g. low load with low condensing) Sensors out of calibration Transducers out of calibration kW(hr) Kilowatt hours of electrical energy per rack # kW(hr) Kilowatt hours of electrical energy per compressor kW(hr) Kilowatt hours of electrical energy per condenser Uneven compressor run hours Liquid flood back # Additional hardware and sensors required * Scientific process using raw system data. No manufacturer performance data or "polynomials" used.

Feature Description Refrigerant performance and efficiency ClimaCheck Traditional Controls Refrigerant performance and efficiency Gas leak detection (without gas sensor) yes ─ Impurity detection (e.g. leakage of high glide refrigerants) Non-condensable detection Incorrect refrigerant Compressor performance and efficiency (per compressor) Liquid flood-back Isentropic efficiency (e.g. valve plate wear/damage / piston ring wear) Planned maintenance on "work done" kWR(hr) and/or kW(hr) e.g. VSD compressors Compressor "off" without controller alarm Short-cycling Condenser performance and efficiency Performance degradation (e.g. dirt build-up over time, water pump cavitation) Verification of manufacturer data versus actual performance Verification of de-superheater performance Evaporator performance and efficiency

The law of the conservation of energy: How does it work? The law of the conservation of energy: “Energy cannot be destroyed” The law of the conservation of energy: “EnergyThe law of conservation of energy, a fundamental concept of physics, states that the total amount of energy remains constant in an isolated system. It implies that energy can neither be created nor destroyed, but can be change from one form to another”.

How does it work? m

How does it work? Heat Capacity Cooling Capacity 3 2 Enthalpy Pressure How does it work? Heat Capacity 3 2 P HP Enthalpy Difference P LP Cooling Capacity 1 Massflow= Electrical power −heatloss Enthalpy increase compressor

What does it do?

What does it do? Nothing???? Non-Invasive Passive “Read only”

Nothing???? What does it do? Non-Invasive Passive “Read only” Energy-saving gadget Set point “optimisation”

Optimization start with measurements Analyze Optimize Save ClimaCheck onsite - field measurements - 20 minutes to connect ClimaCheck online – continuous monitoring - Early warning – energy reporting All starts with measuring - To measure is to know! The ClimaCheck performance analyser logger is connected to equipment for measuring all relevant parameters. Collected data is then analysed either with a PC software for field measurements or via online with server for fixed monitoring. Information presented is very easy to survey and provides the keys for optimising the performance. The result is significant savings in time, in equipment and in energy. The Monitoring system is fixed for online analyses of equipment installed at end users – the equipment owners. Commissioning engineers, consultants and service contractors use the portable field measurement system in their work. Usually, the ClimaCheck software is installed in a PC for direct analyses of equipment.

Climacheck Analyser:

300 MW Macao Hotel Casino Complex Combined Total Cooling Capacity:

Performance vs Efficiency What is the difference? …as explained by Jeremy Clarkson…

Efficiency (MBE) Program Monitoring Based Efficiency (MBE) Program

Typical Process: A ● Efficiency Time Technology Optimum Project Concept Technology A ● Optimum Efficiency Time

Typical Process: A ● B ● Efficiency Time Technology Optimum 1 Project Concept Technology A ● Optimum 1 Current Deviation B 2 ● Efficiency Time

Typical Process: A ● B ● Efficiency Time Technology Optimum 1 Project Concept Technology A ● Optimum 1 Current Deviation B 2 ● 1 Design and Installation: Constraints (e.g. budget, time, environmental) Information accuracy (e.g. client data, load data) Load variability versus controls design and equipment operating envelope. Incomplete or incorrect system commissioning. Efficiency 2 Maintenance and Repair: Setpoint adjustment. (e.g. priority given to performance over energy and/or reliability) “Run to Fail” mentality: “if it ain't broke, don’t fix it”. Component degradation over time (e.g. fouled heat exchangers). Operational inefficiencies (night operation with unoccupied space) Operator and service technician skill level. Time

Typical Process: A ● B ● Efficiency Time Technology Optimum 1 Project Concept Technology A ● Optimum 1 Lost Efficiency Current Deviation B 2 ● 1 Design and Installation: Constraints (e.g. budget, time, environmental) Information accuracy (e.g. client data, load data) Load variability versus controls design and equipment operating envelope. Incomplete or incorrect system commissioning. Efficiency 2 Maintenance and Repair: Setpoint adjustment. (e.g. priority given to performance over energy and/or reliability) “Run to Fail” mentality: “if it ain't broke, don’t fix it”. Component degradation over time (e.g. fouled heat exchangers). Operational inefficiencies (night operation with unoccupied space) Operator and service technician skill level. Time

Typical Process: A ● B ● Efficiency Time Technology Optimum 1 ɪ Project Concept Technology A ● Optimum 1 B ɪ V Lost Efficiency B - baseline I - implementation V - validation Current Deviation B 2 ● Phase 1 1 Design and Installation: Constraints (e.g. budget, time, environmental) Information accuracy (e.g. client data, load data) Load variability versus controls design and equipment operating envelope. Incomplete or incorrect system commissioning. Phase 1: Operational Expenditure. E.G. re-commissioning, correction of identified inefficiencies such as poor control set-up (typical savings: 10% to 20%). Efficiency 2 Maintenance and Repair: Setpoint adjustment. (e.g. priority given to performance over energy and/or reliability) “Run to Fail” mentality: “if it ain't broke, don’t fix it”. Component degradation over time (e.g. fouled heat exchangers). Operational inefficiencies (night operation with unoccupied space) Operator and service technician skill level. Time

Typical Process: A ● B ● Efficiency Time Technology Optimum ɪ 1 Project Concept Technology A B ɪ V ● Optimum 1 Lost Efficiency B - baseline I - implementation V - validation Current Deviation B 2 ● Phase 1 Phase 2 1 Design and Installation: Constraints (e.g. budget, time, environmental) Information accuracy (e.g. client data, load data) Load variability versus controls design and equipment operating envelope. Incomplete or incorrect system commissioning. Phase 1: Operational Expenditure. E.G. re-commissioning, correction of identified inefficiencies such as poor control set-up (typical savings: 10% to 20%). Efficiency 2 Maintenance and Repair: Setpoint adjustment. (e.g. priority given to performance over energy and/or reliability) “Run to Fail” mentality: “if it ain't broke, don’t fix it”. Component degradation over time (e.g. fouled heat exchangers). Operational inefficiencies (night operation with unoccupied space) Operator and service technician skill level. Phase 2: Capital Expenditure. E.G. installation of variable speed drives, “EC” fans and replacement of components beyond economic repair. Time

Typical Process: A ● B ● Efficiency Time Technology // Optimum // ɪ Project Concept Technology B ɪ V M.B.E Program™ // A ● Optimum 1 Lost Efficiency B - baseline I - implementation V - validation Current Deviation B 2 ● Phase 1 Phase 2 Phase 3 // 1 Design and Installation: Constraints (e.g. budget, time, environmental) Information accuracy (e.g. client data, load data) Load variability versus controls design and equipment operating envelope. Incomplete or incorrect system commissioning. Phase 1: Operational Expenditure. E.G. re-commissioning, correction of identified inefficiencies such as poor control set-up (typical savings: 10% to 20%). Efficiency 2 Maintenance and Repair: Setpoint adjustment. (e.g. priority given to performance over energy and/or reliability) “Run to Fail” mentality: “if it ain't broke, don’t fix it”. Component degradation over time (e.g. fouled heat exchangers). Operational inefficiencies (night operation with unoccupied space) Operator and service technician skill level. Phase 2: Capital Expenditure. E.G. installation of variable speed drives, “EC” fans and replacement of components beyond economic repair. Phase 3: Monitoring Based Efficiency Program™. E.G. on-going monitoring. Fault detection/prediction. Performance degradation over time. Energy team KPI feedback. Time

Typical Process: A ● B ● Efficiency Time Technology // Optimum // ɪ Project Concept Technology B ɪ V M.B.E Program™ // A 2 ● Optimum 1 Lost Efficiency B - baseline I - implementation V - validation Current Deviation B 2 ● Phase 1 Phase 2 Phase 3 // 1 Design and Installation: Constraints (e.g. budget, time, environmental) Information accuracy (e.g. client data, load data) Load variability versus controls design and equipment operating envelope. Incomplete or incorrect system commissioning. Phase 1: Operational Expenditure. E.G. re-commissioning, correction of identified inefficiencies such as poor control set-up (typical savings: 10% to 20%). Efficiency 2 Maintenance and Repair: Setpoint adjustment. (e.g. priority given to performance over energy and/or reliability) “Run to Fail” mentality: “if it ain't broke, don’t fix it”. Component degradation over time (e.g. fouled heat exchangers). Operational inefficiencies (night operation with unoccupied space) Operator and service technician skill level. Phase 2: Capital Expenditure. E.G. installation of variable speed drives, “EC” fans and replacement of components beyond economic repair. Phase 3: Monitoring Based Efficiency Program™. E.G. on-going monitoring. Fault detection/prediction. Performance degradation over time. Energy team KPI feedback. Time

Repair Gas Leak Detection

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