2011 Speakers
|
|
CHAIR - Welcome and Opening - Didier Coulomb - President: International Institute of Refrigeration
Didier Coulomb is a qualified engineer and following internships within Food industry, he worked for the French Ministry of Agriculture and Forestry before moving
onto working at the French Research Ministry . Subsequently Didier became General Secretary of CIRAD (Centre for General Cooperation in Agronomic Research for Development).
Since then he has become involved in the International Institute of Refrigeration.
|
|
|
Mr. Klas Berglöf - Managing Director - ClimaCheck Sweden AB
Performance Inspections for Optimisation of Existing Refrigeration
Following many years of careful development, this revolutionary technology is now being successfully used extensively throughout Europe and other parts of the world.
Available in portable and fixed installation versions, ClimaCheck uses a variety of sensors and electrical power input to thoroughly analyse every performance aspect of
any type of refrigeration or air conditioning system running on any refrigerant. This presentation will explain in depth the basis of the technology and how it is now
possible to determine cooling capacity, isentropic efficiency, COP and many other system parameters, thus enabling equipment to be tuned to the maximum operational
energy efficiency in addition to resolving technical defects issues.
|
|
|
Mr. Mike Creamer - Managing Director - Business Edge Ltd
Practical Field Performance Analysis of AC&R Systems
Following on from his extensive career in mechanical design, AC&R manufacturing, control and software engineering, Mike Creamer now dedicates considerable time
toward the resolution of technical problems and disputes covering a wide range of equipment including water chillers, supermarket refrigeration systems and
multi-split DX systems. Moreover, he is highly motivated to bring a greater level of awareness to the AC&R industry and its end user customers where unnecessary
and excessive use of electrical energy is clearly occurring on a massive scale.
Mike will explain how he has successfully solved a wide range of AC&R technical trouble-shooting problems, some utilising ClimaCheck technology,
especially where serious plant failure has occurred. He will also present new technology that enables complete flushing of AC&R systems, whilst
cleansing the refrigerant for re-use, this being specifically applicable to refrigerant retrofits where the original oil charge must be removed completely,
or where systems are contaminated with acid, water vapour, water in liquid form or particulate matter.
|
Joachim Gerstel - Du Pont
Development and evaluation of high performance, low GWP refrigerants for supermarket applications
In response to concerns about global climate change, and in consideration of probable legislation that may impact the production and use of
refrigerants with high global warming potential, a set of new refrigerant candidates has been developed for evaluation. Some candidates are designed for stationary
air conditioning in residential and light commercial end uses. Other refrigerant candidates were designed more specifically for use in medium temperature refrigeration
applications. These candidates all have GWP values that are reduced significantly from R-134a, R-410A and R-404A values, and have good predicted performance characteristics
as determined by cycle modelling. Model results must always be validated by actual system tests, and that work has been underway for some time now. System tests are
indeed showing that the predicted model results are achievable. This presentation will describe these candidates and show some results from evaluations of their cooling
and heating performance properties and LCCP (Life Cycle Climate Performance) comparisons.
The paper gives an overview about the current state of technology in the supermarket sector, demon-stration of optimization potentials, obstacles and limits of current and
alternative technologies as well as combinations of them, and the introduction of the Eco-Efficiency-concept to compare and evaluate supermarket refrigeration performance
from an environmental and economic point of view. Furthermore, the first results from field tests will be presented.
|
|
|
Laurie Reynolds, Standards Manager - Engineering - Virgin Media Ltd
Evolution of a strategy for a diverse air conditioning estate, taking inspiration from Darwin
Virgin Media operate approximately 750 technical sites across the UK accounting for around £25m energy use. At least 30% of this figure is used for air-conditioning
to cool the technical equipment. The talk will briefly cover the background to the current cooling situation and illustrate the scale and diversity of the problem.
It will then analyse the load profile, the performance of the existing assets and the business drivers, especially energy efficiency and maintenance.
Finally, a multi-initiative strategy will be set out involving new technologies, together with discussion of the importance of engagement and partnerships with key
suppliers.
|
Enrico Fraccari, Copeland / Emerson
Variable Speed Vapour Injection Compressors
Copeland is renowned for their wide range of compressors encompassing reciprocating and scroll compressor designs.
The Copeland digital scroll was specifically developed in order to bring about much-needed improvement in capacity control and overall energy consumption reduction.
This talk will present for the first time, details of the latest development from Copeland in the form of variable speed vapour injection compressors.
The application of variable speed to hermetic compressors has been heavily restricted until now where the speed range has been limited to approximately 45 Hz-60 Hz
(1350-1800 rpm). This new technical refinement will be explained in detail.
Kevin Stickney, Technical Director, Greenfield Energy Ltd
Improving refrigeration efficiency with Geoscart ground-coupled thermal energy management
The Geoscart system is literally breaking new ground by combining sophisticated borehole technology with reverse cycle heat pumps and the waste heat energy rejected
from refrigeration systems such as CO2 supermarket refrigeration packs and water chillers dedicated to the cooling of large commercial buildings. This presentation
will encompass a description of the Geoscart system and will describe one of the largest UK installations featuring 15 boreholes, five water to air custom-built heat
pump systems and waste heat energy from two large CO2 refrigeration packs, all installed at a major superstore near London.
Hillary Spicer, Steril Aire Ltd
Improving Indoor Air Quality whilst saving energy
This technology employs the application of high-intensity ultraviolet light and bombardment of the X and chilled water cooling coils and is amazingly effective at
cleaning and clearing blocked coils and subsequently maintaining such heat exchangers at a high level of microbiological cleanliness and thermal efficiency.
Indeed, the technology is able to clear deep coils of several rows which are other-wise impossible to clean, where jet washing simply drives dirt and particulate matter
deeper into the coil thus reducing its heat exchange efficiency whilst increasing its resistance to airflow.
|
|
|
Dr. Nacer Achaichia, Honeywell
Next generation refrigerant fluids
This technical presentation focuses on future low GWP refrigerants where HFO technology promises significant improvements in energy efficiency, environmental benefits and
safety. This presentation will cover properties and applications of these new refrigerant options in stationary AC&R systems.
A new low-GWP platform based on hydrofluoro olefin (HFO) technology has been developed. Among the compounds discovered by Honeywell, HFO-1234yf has emerged as a new
low global warming refrigerant (GWP=4) that is essentially a drop-in replacement for most systems currently designed for R134A and has been selected as the refrigerant
of choice for a sustainable and global solution for automotive air conditioning.
Another low GWP molecule HFO1234ze (E) has been identified and is currently commercialised by Honeywell. It is a highly energy efficient HFO molecule, with a GWP
of only 6 and has also potential for refrigeration applications.
HFO technology offers significant promise as a result of its energy efficiency, environmental benefits, safety and overall effectiveness. HFO-1234yf and HFO-1234ze(E)
may have potential in applications such as small commercial and residential refrigeration systems where low global warming refrigerants are needed to meet current
and future climate regulations.
In addition to these two single component refrigerants, low global warming refrigerant blends that have properties closer to existing higher pressure refrigerants
such as R-404A, R-407C, and R-410A have been developed.
|
|
Georg Schoeninger, Danfoss – Turbocor
New developments in the Turbocor Compressor
Georg has 12 years managerial experience, mainly in technical sales and product management. After several years as Senior Applications Manager at Bitzer,
Austria GmbH, he joined Danfoss Turbocor as Key Account Manager - Europe. Georg has an Engineering degree in building technology. His presentation will cover
the new developments of Turbocor compressor and will show the benefits and limits of the Turbocor family of compressors designed to achieve the highest overall
efficiencies for middle-market, water-cooled and air-cooled HVAC applications.
|
|
|
George R. Hannah, Product Development Director, Airedale International Air Conditioning Ltd
Data Centres – reduced operating cost utilising new technology
Airedale are well known for their wide range of air conditioning products and over recent years have increased their focus on the development of specialised and custom
products with water chillers of up to 1.4 MW capacity incorporating many revolutionary features. Given the high energy consumption levels within data centres throughout
Europe, there is an ever-increasing requirement to develop products that can minimise the running cost impact on the end-user whilst tackling the environmental GWP problems
that such applications cause. This presentation will describe the application of new cooling approaches to data centres and similar installations.
|
|
|
