Evaporative Cooling Kostas Pitsinis Director Eco Cooling Greece

Evaporative Cooling Kostas Pitsinis - Director, Eco. Cooling Greece Pantelis Christoforidis – Director, Eco. Cooling Greece Alan Beresford - Managing Director, Eco. Cooling Limited

Evaporative Cooling • Introduction • Eco. Cooling – the Company • The key differences between evaporative cooling and air conditioning • The opportunity for evaporative cooling in Greece

The Company • Specialist evaporative cooling company based in the UK • Supplier of equipment to: • Industry • Logistics • Retail • Information Technology

Eco. Cooling Products • Internal coolers • External coolers • Fresh air coolers • Control Systems

Evaporative Cooling

Cooling a Building – Do Nothing 350 C 45 C

Cooling a Building - Ventilation 350 C 40 C

Cooling a Building - Adiabatic 340 C 280 C

Reasons to use Eco. Cooling • 10% of the electricity cost of air conditioning • 25% of the capital cost of air conditioning • Healthy – a fresh air system which is better for your people • Simple to maintain and fix • Low power demand • Low noise

• Evaporative Cooling • Refrigeration • Co. P 30: 1 • Co. P 3: 1 • 3 C/hr per k. W of cooling • 30 c/hr per k. W of cooling • € 240 per year per k. W of cooling • € 2, 400 per year per k. W of cooling • Environmentally Friendly • High environmental impact • No gases • Greenhouse gases • Low energy • High energy use • Fresh, health air • Recirculated, dirty air • Low maintenance cost • High maintenance cost • Low skills • Skilled engineers required for simple tasks • Low cost spare parts • High cost spare parts • Simple engineering • Complex, expensive engineering • Low power supply • High power supply which is expensive • Flexible • Rigid, inflexible installations • Open doors are OK • Open doors affect performance • Small faults can be accommodated by the other systems • Small failures can result in total loss of cooling

Evaporative Cooling • Why we need an alternative to air conditioning Evaporative cooling is a Simple Safe Low Cost Alternative to air conditioning • Energy saving • Environmental factors • Targets • How it works • Ventilation • Direct evaporative cooling • Savings • Operational • Capital • Engineering • Key elements of the solution • Control • Legionella • Applications • Leisure • Commercial • Industria • Data centres and IT • Questions

Why do we need an alternative? • Energy use of refrigeration • Electricity cost • Electricity carbon impact 370 C • Environmental impact of refrigeration • Refrigerants • Production • Leakage • Disposal • Carbon impact of electricity use • Greater requirements for cooling • Modern building design • Intensive processes • External targets 250 C

Why do we need an alternative? • Energy use of refrigeration • Electricity cost • Electricity carbon impact • Environmental impact of refrigeration • Refrigerants • Production • Leakage • Disposal • Carbon impact of electricity use • Greater requirements for cooling • Modern building design • Intensive processes • External targets Potential for 90% savings compared with traditional air conditioning

Other operating costs • Maintenance: • Low level cleaning • Biannual for standard installations • Every three months for IT cooling • Filters replacement dependent upon location • No F Gas inspections • Pad life is normally over 5 years • Pre-filters • Scale control • Water circulation is only enabled in warm periods: Less than 10% of the time • Fans have a design life of 15 years

Running Cost 25 kw Load COP 95 90% Saving

What is Evaporative Cooling?

Cooling Performance 390 C 240 C

Cooling Performance

Cooling Performance

Eco. Cooler Performance - Athens

Eco. Cooler Performance - Thessaloniki

Eco. Cooler Performance - Volos

Eco. Cooler Performance - Patras

Eco. Cooler Performance - Patras

Eco. Cooler Performance - Larissa

Eco. Cooler Performance - Elefsis

Eco. Cooler Performance

Manufacturing

Sizing of Systems

Leisure - Gymnasium

Legionella Presence in Water Supply LOW RISK Growth to dangerous levels LOW RISK Production of droplets LOW RISK Inhalation by Susceptible Host Unknown Dr. Tom Makin BA, Ph. D, FIBMS, Chartered Scientist. Directorate Manager of the Department of Medical Microbiology at the Royal Liverpool University Hospitals. He is a co-author of the HSE L 8 guidance document, and the NHS HTM 2040 on the control of Legionella.

Pre-Cooling

Data Centres and IT • Cooling IT equipment can be very expensive • IT equipment needs 24/7 cooling • A recognised measurement is Power Usage Effectiveness • PUE=total power/IT power

PUE

Engineering – Key Elements • Direct Evaporative Cooling • EC Fans • Control

Capital Cost

Retail

Minimum Water Use

Telecom Cooling • 6000 telephone exchanges • 22, 000 cooling systems • 12, 000 fresh air/DX units • 10, 000 fresh air units • First 1000 units installed • Nominal 35 k. W units • Average energy use <1 k. W • ~£ 7 M/annum saving

Capability • Product Design • Manufacture • Software • Assembly • Testing

Large Buildings - Cooling

Large Buildings - Destratification

Large Buildings - Heating

Heating and Cooling Tout T RH TEx CO 2 Tin

Heating and Cooling Heating Coil Recirculation Damper Supply Damper Eco. Cooling ECP Wet Box Exhaust Damper Supply Fan Exhaust Extract Fan

Food Industry

Laundry

Large Data Centre

Control

Print

Small Data Centre

Mobile Coolers

Plastics Manufacture

• Evaporative Cooling • Refrigeration • Co. P 30: 1 • Co. P 3: 1 • 3 C/hr per k. W of cooling • 30 c/hr per k. W of cooling • € 240 per year per k. W of cooling • € 2, 400 per year per k. W of cooling • Environmentally Friendly • High environmental impact • No gases • Greenhouse gases • Low energy • High energy use • Fresh, health air • Recirculated, dirty air • Low maintenance cost • High maintenance cost • Low skills • Skilled engineers required for simple tasks • Low cost spare parts • High cost spare parts • Simple engineering • Complex, expensive engineering • Low power supply • High power supply which is expensive • Flexible • Rigid, inflexible installations • Open doors are OK • Open doors affect performance • Small faults can be accommodated by the other systems • Small failures can result in total loss of cooling

Questions Evaporative cooling is a Simple Safe Low Cost Alternative to air conditioning