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GPG 312 Invest to Save

Buildings that are too hot or too cold can adverselyaffect the occupants’ comfort levels, morale andproductivity. Saving energy also reduces emissionsof carbon dioxide (CO2), the principal contributor to climate change, and other gases causing airpollution and other toxins

Review of Ejector Design Parameters and Geometry for Refrigeration and Air Conditioning Applications

[EXTERNAL] Abstract: Review of Ejector Design- Refrigeration and Air Conditioning In this paper, a thermodynamic model of the ejector-expansion transcritical CO2 refrigeration cycle is developed.The basic transcritical CO2 systems exhibit low energy efficiency due to their large throttling loss. Replacing the throttle valve with an ejector is an effective measure for recovering some of the […]

Making Refrigeration More Efficient with LPA®

HY-SAVE® technology delivers significant energy savings that pay back promptly by making refrigeration more efficient. For DX applications considerable savings can be made, generally up to 40%, ambient temperatures permitting. By simply reducing the condensing temperature from 32°C to 18°C it will provide a saving of approximately 23%. As energy costs continue to rise, the […]

GPG 280 – Energy Efficient Refrigeration

This is a comprehensive guide describing the fundamental aspects of refrigeration systems. After explaining the process, both in thermodynamic and hardware terms, each of the key components and typical systems are discussed in detail. Throughout the publication, key areas of maintenance and design that can lead to energy savings are highlighted. GPG 280 – Energy […]

The Thermodynamic Principles of LPA

Most current refrigeration and air conditioning systems waste 20% to 40% of the electrical power used. The LPA® pump can save most of this power. How is my power being wasted? Present day designs with head pressure controls were developed some 65 years ago. Higher head pressures were designed into a system so it would […]

How to Refurbish a Supermarket for Energy Savings

This report discusses the specific topic of how to refurbish a supermarket with refrigeration technologies which allow achieving high energy efficiency as well as the challenges to their implementation at present; financing measures; golden rules and checklists to facilitate the refurbishing of supermarkets to the involved stakeholders; as well as best practice cases and success […]

Tesco Supermarket Case Study, Liquid Pressure Amplification

UK based supermarket retail giant Tesco has lead by example in recent years when it comes to saving energy and reducing CO2 emissions from their retail stores. In the period from 2000 to 2009 Tesco UK Carbon Dioxide emissions per ft2 of floor space have halved.*

Carbon Dioxide in Supermarket Refrigeration

This thesis theoretically and experimentally investigates different aspects of the application of CO2 in supermarket refrigeration. Theoretical analysis has been performed using computer simulation models developed to simulate CO2 indirect, NH3/CO2 cascade, CO2 trans-critical and direct expansion (DX) R404A systems. The models supported the selection of the CO2 system solutions to be tested experimentally and […]

How to Convert R22 to MO99 Refrigerant Retrofit Guide

Summary – Steps to Retrofit
The following provides a summary of the basic retrofit steps for ISCEON® MO99.
(Detailed discussion of each step is provided in this bulletin.)

1. Establish baseline performance with existing refrigerant. (See retrofit checklist (attached))
2. Remove all the old (R22 or other) refrigerant from the system into a recovery cylinder. Weigh the amount removed.
3. Replace the filter drier and critical elastomeric seals/gaskets.

GPG 283 Designing Energy Efficient Refrigeration

This guide is No. 283 in the Good Practice Guide series. The guide covers commercial and industrial refrigeration systems and offers guidance on the design of efficient plant – from the selection of simple components to the design of large and complex systems. Download the complete guide GPG 283 Designing Energy Eff Plant

Stockholm Sweden – Article – Thermosiphon loops for heat extraction

Ground source heat pumps use the energy from the ground for heating and cooling applications in buildings. This mechanism is carried out in a borehole in which a fluid circulates through a closed loop. In thermosiphon loops, the fluid circulates naturally while taking up the heat from the surrounding ground. The advantage of the natural circulation is that it substitutes the need of a circulating pump and this leads to a reduction of electricity consumption. Furthermore, in the case of leakage, ground water is not polluted because of being able to use natural fluids instead of traditional non freezing fluids.

R22 Phase Out Guide – Advise on Alternatives and Guidelines for Users

This Guide provides details of how the new EC Regulation 2037/2000 on ozone depleting substances (ODS) will affect manufacture and use of refrigeration and air-conditioning equipment. The Guide is aimed at all key parties in the refrigeration and air-conditioning market including users, designers, equipment manufacturers, installation contractors and maintenance contractors.

Energy Saving with Liquid Pressure Amplification in a Dairy Plant

The Dairy sector is one of the major refrigeration energy users in the food industry. Significant energy and financial savings can be achieved by adopting new refrigeration technologies and practices. One such technology which has been available on the market for direct expansion evaporator vapour compression systems for a number of years but has not as yet found wide application is Liquid Pressure Amplification (LPA).

Novozymes Biopharma Case Study LPA Liquid Pressure Amplification

Novozymes Biopharma UK, a world leader in biotechnology, recently installed LPA® pumps on their factory process and comfort cooling systems and have made significant energy savings as a result. Chilled water systems operating with LPA® pumps installed have seen energy savings of 33% during their first year of operation and are comfortably on target to […]

Poultry Farm Case Study, LPA® Energy Savings

A poultry processing company in the UK has seen it’s energy consumption fall by nearly 38% since installing LPA® pumps to their chicken cooling equipment in 2009. As part of the programme, LPA® pumps were designed into the refrigeration system at the site in the United Kingdom. This has led to much needed increases in […]

Euro Foods Saves £26,400.00 ($42,500.00) per year with LPA pumps

Established in 1991, Euro Foods Group processes, imports, exports and distributes frozen sea food, meat, poultry, vegetables and herbs supplying an extensive range of top quality Asian foods to caterers,wholesalers and supermarkets.

Don’t miss out on Energia’s free grants, LPA

All you Irish folk, Energia, one of the largest utility suppliers in Ireland is offering free grants to companies who install LPA® (Liquid Pressure Amplifiers) for commercial premises. In addition, there is a 20% cost reduction token available to off set against the capital cost, so take control, use energy responsibly!

Master Class, About Liquid Pressure Amplification

The application of LPA (Liquid Pressure Amplification) to a refrigeration or air condition system provides the means by which a considerable reduction in condensing pressures can be permitted.

Dairy Farm Case Study, Liquid Pressure Amplification

A Dairy processing company in Ireland has recently won an award for Energy Efficiency at the NIEA Sustainable Ireland Awards following a 14 month programme of upgrades to their utility equipment.As part of the programme, Hy-Save LiquidPressure Amplification (LPA®) pumps were designedinto the refrigeration system at the site in Northern Ireland.

Carbon Trust, Industrial Refrigeration Equipment Eligible for Enhanced Capital Allowences

Liquid pressure amplification (LPA) involves the use of a pump between the condenser and the expansion valve in a refrigeration system. This pump raises the liquid pressure at the expansion valve allowing the head pressure to be lowered. This reduces the power required by the compressor (increasing the COP) to achieve a given amount of cooling. Many refrigeration systems operate with higher head pressures than necessary. Without controls, head pressures would be lower in mild and colder weather compared with hotter days.

Propane as R22 Replacement in Commercial Applications

Propane (R290) can be introduced in many of today’s R22 applications. No other single component refrigerant has such similar thermodynamic behaviour to R22…

Investigation Refrigeration Systems in Supermarkets – Stockholm Institute of Technology

In a conventional direct system, head pressure is normally maintained in a high level in order to avoid the generation of flash gas between the condenser and the expansion valve. Therefore, the condensing temperature is fixed neglecting the changing of ambient air temperature. While a liquid deliver pump is installed between the outlet of the condenser and upstream of the expansion valve. The liquid pressure is increased before it enters the expansion valve, and this prevents the formation of flash gas.

Case Study Food Process Refrigeration Milk Chilling

A milk storage tank has been successfully converted from R22 to R407C, an HFC with expected long term availability into the future.The system comprised of two bulk storage tanks fitted with two refrigeration units running in parallel. The units used Prestcold compressors with air cooled condensers. One system was converted to R407C while the other was left running on R22 for reference.The retrofit was carried out using the now well documented procedure for converting to R134a.

Replacements of HCFC and HFC with natural refrigerants

There is renewed interest in the use of natural refrigerants to replace existing HCFC and HFC compounds and also
in the use of cascade systems.

Carbon Trust: How to implement liquid pressure amplification to refrigeration plant

Depending on the size of plant, its operating hours and the cost of electricity, financial savings can be substantial. Generally, the larger the plant, the better the return on investment. On a 300kW plant, energy savings of up to 25% have been seen.

Case Study – Energy Efficiency – Free Cooling

A Finnish manufacturer of flexible packaging saved 37% of their annual energy consumption by purchasing a separate cooling system and production machine, rather than an integrated one. The production process requires heat to melt plastic granules but also needs alarge amount of cooling water at 10°C. By specifying separate production and cooling machines the cooling […]

About LPA® by Master Class

From the UK, by Mike Creamer, Business Edge. With the increase in the cost of electricity, many organisations are looking to make improvements in refrigeration and air conditioning efficiency.

Refrigerants for R22 Retrofits – Refrigerant Replacement Guide

Now that we are in the midst of the R22 phaseout, overtime the need to retrofit R22 systems is sure to rise. Exactly as to when that will happen remains the subject of debate and speculation…

Sustainable Energy in Ireland – Liquid Pressure Amplification

Big energy savings are simple to achieve. You can make considerable energy savings in many refrigeration systems by reducing the temperature lift. Temperature lift is the difference between the evaporating temperature and the condensing temperature of the refrigerant. These savings are often possible at little or no cost, simply by adjusting the evaporator temperature upwards and/or reducing the condenser temperature.

Guaranteed Refrigeration Energy Savings

HY-SAVE® Technology guarantees genuine energy savings in refrigeration and other cooling applications. We offer a free no obligation energy survey of your refrigeration equipment and can assist you in providing the right solutions to meet your energy initiatives and carbon reduction programs. Contact us for a solution to improve or reduce your energy consumption and […]

NYC Waste Les$ – Ice Arena Technology – Liquid Pressure Amplification

This is the premier issue of NYC WasteLe$, your information source on reducing costs through improved efficiency. You can rely on this waste reduction and energy conservation quarterly to keep you informed of important developments and cost saving opportunities for stadiums, arenas, and convention centres. NYC WasteLe$ is a non-regulatory waste prevention program initiated by the New York City Department of Sanitation (DOS) with support from the New York State Energy Research and Development Authority (NYSERDA) and the U.S. Environmental Protection Agency (EPA) Region II. NYC WasteLe$ supports City waste prevention efforts to help local businesses maintain and enhance their competitiveness.

Case Study Retail Refrigeration – Electronic Expansion Valves

A Danfoss Smart case controller and electronic expansion valves were installed at Tops Market 22 in Niagara Falls, New York. The installation covered one low temperature (two stage) rack and one medium temperature rack connected to forty three display caseevaporators and five evaporators in a meat preparation room and walk-in meat boxes. R22 was used as the refrigerant in both racks.

Case Study – Energy Efficiency – Chilled Storage

To test the use of lower fan speeds in controlled atmosphere chilled stores for apples, three of the thirty nine new cold stores built at Geldermalsen Auction in the Netherlands had variable speed fans installed in a false ceiling rather than fixed speed fans installed over the door in a design incorporating a sloping roof. […]

Funded by Defra – Development of Technologies to Reduce Energy in a Potato Store

In general potatoes are chilled and stored in the same systems. Unlike many other foods potatoes generate CO2 and heat due to respiration during storage. High air leakage into potato stores is one of the primary causes of high-energy costs in storage. Attention to key areas like joints in structures and doors is important. Exceptionally good sealing in buildings can lead to the build up of CO2 which can itself lead to problems with the crop and with safety. However, this is something that can be managed easily with controlled low-level ventilation. Traditionally potatoes have been stored in boxes in unrefrigerated stores.

Case Study Retail Refrigeration – LPA Liquid Pressure Amplification

A LPA® Liquid Pressure Amplifier was fitted to the high temperature rack of the Big Fresh Mt. Wellington store in New Zealand. The rack used four D4DA-1000 Copeland compressors and one 4DH-1500 giving a nominal capacity of 89.5 kW using R22 refrigerant. After installing the LPA the evaporator temperature rose by 6.4 ºC, indicating that flash vapour in the suction line had adverselyaffected the performance of the expansion valves. The measured energy saving was 32%.

Case Study Energy Efficiency -Liquid Pressure Amplification

A Norlake Walk-in-Freezer used for the storage of serum at the J Hillis Miller Health Centre, University of Florida, Gaineville,Florida had to maintain a temperature -30 ºC with a maximum temperature of – 20 ºC . The two chillers operating on R502 dump the extracted heat into the main chilled water circuit (8 ºC ). […]

An Ejector Refrigeration Cycle for utilizing Solar Thermal Energy

Getting hot thermal energy from solar energy is popular but cooling with solar thermal energy is not spread so far. It is possible to reduce electricity demand to use solar energy for cooling in summer. We are designing a system of an ejector refrigeration cycle, especially concerning the configuration of ejector itself, which can generate […]

Efficiency Vermont, Reduce Food Processing Energy Use, Liquid Pressure Amplification

This publication will help you identify the cost-saving opportunities in your food processing facility and guide you in undertaking a program to improve your bottom line through energy-efficient improvements. Vermont food processing facilities are critical to Vermont’s economic future and way of life.The high energy costs associated with food processing present both challenges and opportunities. One plant recently undertook a three-year efficiency upgrade that is lowering annual electricity costs by $44,000.

EDF Energy – Energy Efficiency in Refrigeration Systems – Liquid Pressure Amplification

Designing an efficient system can lead to significant savings. As with most electric, motor-operated machinery, the running costs over a lifetime can be far greater than the initial purchasing costs. It is estimated that a refrigeration system will cost more than six times to run than it will to purchase. Clearly, the life cycle costs of running such plant should be considered when designing a system. By considering energy efficiency at the design stage it is not unreasonable to recognise lower running costs of between 20-50 per cent to provide the same amount of cooling.

CIBSE – The Quite Revolution in Chillers – Liquid Pressure Amplification

Developments in centrifugal compressors over the last five years have produced packaged water chilling equipment with considerably higher operating efficiencies than comparable compressors. The chillers are marketed in the capacity range 300 to 1,500kW; and this CPD module presents the new technology of the compressor and the chiller, together with a recent case study to illustrate the application

Case Study, Bristol University, Liquid Pressure Amplification

Bristol University’s energy consumption for cooling has been rising – to the point where, in 2006, its summer peak electrical load matched that of mid winter. To reverse this trend, the University has devised more energy efficient methods of supplying chilled water, and policies to control air conditioning.

Carbon Trust, How to apply Liquid Pressure Amplification to a Refrigeration Plant

LPA® (Liquid Pressure Amplification) can be applied to manytypes of refrigeration plant, including air conditioning systems. The benefits depend upon the type ofrefrigerant being used in the plant and the operating conditions.

GPG 207 Cost Effective Low Energy Buildings

This Guide provides estates and academic department managers with an overview of key energy and cost issues to consider when planning new build and refurbishment projects. It gives advice on adopting a strategic approach to energy efficiency and on applying the strategy to a project. Energy efficiency measures applied to a range of further and higher education buildings are highlighted in a selection of case studies. Sources of further information and technical guidance are also provided.

Ejector Based Air Conditioning using Natural Refrigerants

This paper deals with modeling of the ejection cycle, especially for solar air-conditioning. The presented approach for ejector analysis has been proposed, based on formulation of performance curve of the installation and performance curve of an ejector. The operation point of the whole system is found at the interception of these two curves. The exemplary […]

Ejector Air Conditioning and Refrigeration Technology

Ejector or jet pump refrigeration is a thermally driven technology that has been used for cooling applications for many years. In their present state of development they have a much lower COP than vapour compression systems but offer advantages of simplicity and no moving parts. Their greatest advantage is their capability to produce refrigeration using […]

Effect of Suction Nozzle Pressure Drop on the Performance of an Ejector-Expansion Transcritical CO2 Refrigeration Cycle

[EXTERNAL] Abstract: The basic transcritical CO2 systems exhibit low energy efficiency due to their large throttling loss. Replacing the throttle valve with an ejector is an effective measure for recovering some of the energy lost in the expansion process. In this paper, a thermodynamic model of the ejector-expansion transcritical CO2 refrigeration cycle is developed. The effect of the suction […]

Performance of the Two-Phase Ejector Expansion Refrigeration Cycle

[EXTERNAL] 2005, Fluid Mechanics, Thermal Engineering and Multiphase Flow Research Laboratory (FUTURE), Department of Mechanical Engineering, King Mongkut s University of Technology Thonburi, Bangmod, Bangkok 10140, Thailand. Courtesy of Somchai Wongwises & Somjin Disawas  An ejector, or jet pump, is a device that uses a high pressure fluid to pump a low-pressure fluid to a higher pressure at a diffuser […]

Ejector Refrigeration:

[EXTERNAL] In this paper, Ejector Refrigeration (2008) Stefan Elbel of Creative Thermal Solutions & Predrag Hrnjak University of Illinois at Urbana-Champaign explain;  Abstract; Ever since the renaissance of transcritical R744 systems in the late 1980s, ejectors have been considered to improve energy efficiencies. However, the invention of the ejector dates back far longer. This review […]

Transcritical Co2 Cycle with and without Suction Line Heat Exchanger at High Ambient Temperatures

This paper discusses the comparative analysis of the transcritical cycle with and without suction line heat exchanger.

Study of Capillary Tubes in a Transcritical CO2 Refrigeration System

[EXTERNAL] ABSTRACT : A review of the literature on the flow of capillary tubes of different flow configurations especially adiabatic and non adiabatic, has been discussed in this paper. The paper presents the experimental and numerical analysis of different categories provides information about the range of input parameters especially tube diameter, tube length, surface roughness.Other […]

Application of CO2 (R744) Refrigerant in Industrial Cold Storage Refrigeration Plant

This paper describes four single stage CO2 (R744) vapour compression refrigeration systems servicing two medium sized freezer stores located in a food processing facility situated in Brisbane, Australia. The processes which lead to the selection of carbon dioxide as a refrigerant as well as the selection of condensing medium are detailed. In addition, the general plant design concept, plant control, automatic defrost method, practical issues relating to the installation and practical difficulties encountered during commissioning are described in detail. An assessment of the long term reliability of the R744 systems is made and future applications of R744 as a refrigerant are discussed.

Transcritical Co2 Refrigeration Cycle with Ejector Expansion Device

An ejector expansion transcritical CO2 refrigeration cycle is proposed to improve the COP of the basic transcritical CO2 cycle by reducing the expansion process losses.

An Investigation into the types of Co2 Refrigerations Systems in the Supermarket sector

This thesis theoretically and experimentally investigates different aspects of the application of CO2 in supermarket refrigeration.

A New Ejector Refrigeration System with an additional Jet Pump

Courtesy of the Corresponding author. Tel.: +86 29 82668738; fax: +86 29 82668725. E-mail address: yujl@mail.xjtu.edu.cn (J. Yu). Download the full article here>> A New Ejector Refrigeration System with an Additional Jet Pump

Evaluation of Supermarket Co2 Refrigeration Systems

By Sara Johansson: This thesis is a part of a larger project where supermarket refrigeration systems with CO2 will be evaluated and compared to more conventional systems without carbon dioxide. This will give an indication if CO2 can be used in supermarkets and if the technology is ready to be more commercialized. Evaluation of Supermarket […]

An Introduction of a Transcritical Co2 Refrigeration Cycle

This paper describes the transcritical refrigeration cycle utilizing CO2 as working fluid which is composed with Gas cooler, Inter cooler, Suction Line Heat Exchanger, Capillary tube and Rolling Piston type 2-Stage CO2 Compressor. The adoption of the Inter cooler between 1st discharge and 2nd suction reduced the 2nd discharge gas temperature. The adoption of the […]

Transcritical CO2 heat pump systems: Energy Analysis including Heat Transfer and Fluid Flow effects

This paper presents the exergetic analysis and optimization of a transcritical carbon dioxide based heat pump cycle for simultaneous heating and cooling applications. A computer model has been developed first to simulate the system at steady state for different operating conditions and then to evaluate the system based on COP as well as exergetic efficiency, including component […]

Greenpeace – Cool Technologies: Working without HFC’s -2010

Just as there was no single “magic bullet” to replace CFCs, there is no single solution to replace HCFCs. But there is a wide variety of environmentally superior and technologically proven HCFC and HFC-free technologies

Experimental study on R-134a refrigeration system using a two-phase ejector as an expansion device

[EXTERNAL] Fluid Mechanics, Thermal Engineering and Multiphase Flow Research Laboratory (FUTURE), Department of Mechanical Engineering, King Mongkut’s University of Technology Thonburi, Bangmod, Bangkok 10140, Thailand Received 8 May 2006; accepted 14 May 2007 Available online 2 June 2007 Abstract: This paper is a continuation of the authors previous work. In the present paper, the performance of the […]

Could “Minimising the Head Pressure” | HY-SAVE®

Floating the head pressure or minimising the condensing temperature in attempt to save energy can have a negative effect on system performance and efficiency if not taking into account certain thermodynamic variables. As condensing pressure is reduced, the effect of flash gas in the liquid line rises sharply. 2% flash gas by weight in the liquid line at 38°C (F) condensing temperature will occupy 28% of the liquid line with flash vapour at 21°C condensing temperature.

(TES) Thermal Energy Storage | Refrigeration on Demand

Refrigeration on Demand ™ the Thermal Storage Option | Thermal Energy Storage (TES) United Kingdom / United States – HYSAVE Technologies announces the new DXTS cool*pak™. Tampa, FL, January 24, 2015 –(PR.com)– The DXTS cool*pak™ is a cutting edge approach towards superior refrigeration / air conditioning efficiency. Using their newly designed and developed patent pending […]

LPA Installation – Spa Distribution Centre in Ireland, liquid receiver being lifted into position.

Newly designed receivers being hoisted into position provides a fast and easy LPA®  installation with the best possible performance and maximum energy savings.  

LPA – Retrofit in Ireland Spa Distribution Centre, Refrigeration Energy Savings 38%

LPA® retrofit completion. Condensing pressure were previously held artificially high at 16 bar (232psi) to maintain the cooling and provide for hot gas defrosting on demand. Now with LPA® installed, the pressures have been reduced to 9 bar improving the systems efficiency by 38% annually.

LPA Model 875 Installation

Model 875 FGN suitably mounted adjacent to the vertical receiver provides a quick and simple solution to guarantee 100% solid liquid delivery to the expansions valves at reduced condensing temperatures increasing system efficiency substantially.

LPA – Retrofit in Ireland Spa Distribution Centre, LPA pumps adjacent liquid receiver.

LPA® retrofit receivers with bottom outlets ideal for ensuring a good supply of liquid refrigerant into the LPA® at low condensing pressures and higher efficiencies.

Valefresh- Liquid Pressure Amplification

It was also decided to investigate the benefits of using LPA (liquid pressure amplification), which can, in some installations, enable refrigeration equipment to operate at more efficient levels by allowing the compressor discharge pressure to float with the ambient temperature. IRS had previously installed sub-metering at ValeFresh so that energy consumption of the refrigeration plant could be monitored closely. The data persuaded them […]

Model 875 Distribution Center in Holland- Cold Storage – 35% Energy Saving Reduction

A well know Distribution centre in Holland has recently installed Model 875 seen above to substantially improve their cold storage energy saving refrigeration performance. The plants compressor rack is located 18 feet (6 meters) below the expansion valves which is providing a 35 to 40% improvement in refrigeration energy savings by overcoming the liquid line […]

LPA – Retrofit in Ireland Spa Distribution Centre, before evaporative condensers were steaming excessively

Previously the evaporative condensers operated at much higher temperatures as seen by the amount of drift loss or water evaporation taking place. Now with Liquid Injection installed water loss has been reduced to zero and the build up of scale in the condensers eliminated. Discharge temperatures were reduced by 50°C (100F) sufficiently low enough to prevent scale formation, maintaining peak efficiencies and substantial water savings.

Energy Savings Potential and RD&D Opportunities for Non-Vapor-Compression HVAC Technologies

March 2014 – While vapor-compression technologies have served heating, ventilation, and air-conditioning (HVAC) needs very effectively, and have been the dominant HVAC technology for close to 100 years, the conventional refrigerants used in vapor-compression equipment contribute to global climate change when released to the atmosphere.

Liquid Pressure Amplification – Technology Keeps Improving

Liquid Pressure Amplification LPA® can be applied to manytypes of refrigeration plant, including air conditioningsystems. The benefits depend upon the type ofrefrigerant being used in the plant and the operating conditions.

ECA769 Commercial Retail Refrigeration

It is estimated that commercial and retail refrigerationuses 16,000 million kWh of electricity per annum in theUK. This results in a cost of £1.3 billion and sevenmillion tonnes of CO2 (MtCO2) emissions1.The proportion of electricity used by commercial andretail refrigeration equipment is significant for most endusers.

Refrigeration energy savings need not be expensive

Refrigeration energy saving need not be expensive. Energy savings of upto 20% can be realised in many refrigeration plant throughactions that require little or no investment.In addition, improving the efficiency and reducing the loadon a refrigeration plant can improve reliability and reducethe likelihood of a breakdown.