FEATURE
2022
ENERGY PARTNERS REFRIGERATION
Energy Partners Refrigeration ( EPR ), part of the PSG group , is a leading provider of sustainable outsourced refrigeration solutions . We identify and develop sustainable refrigeration projects which are designed to world-class engineering standards . Through our innovative Cooling as a Service ( CaaS ) model , we own , operate , and maintain refrigeration assets off balance sheet , providing funding and long-term commitment to plant efficiency and reliability . We monitor our performance and proactively manage maintenance to ensure optimal efficiency , maximising client profitability .
EPR has a proven track record for innovative refrigeration solutions , evident at Dr Oetker , Johannesburg . EPR installed a new three-stage refrigeration plant , using natural refrigerants , to supply cooling to the process areas , process fluids , blast freezers , holding freezers and cold rooms . Reclaimed heat from the plant has been included in the solution to generate hot water for the site and through the Cooling as a Service ( CaaS ) model , the plant is optimised for operational efficiency and redundancy while achieving the lowest possible carbon footprint .
At Global Macadamia , Mpumalanga , EPR has delivered the lowest energy and most cost-effective solution for heating and cooling through innovative single plant design in the world ’ s largest macadamia curing and processing facility . EPR is proud to have been afforded the opportunity to deliver a solution that is truly world-class .
EVAPCO SOUTH AFRICA
Evapco is proud to be the first to develop a closedcircuit cooler with patented combined indirect and direct cooling technology . The pump is energised , and water circulates up to the water distribution system .
The large orifice EvapJet nozzles evenly distributes water as a thin film over the extended fill surface for maximum cooling efficiency . Simultaneously , the fan system moves large volumes of air through the unit in the opposite direction of the falling water .
The air and water contact directly across the fill surface , whereupon a small portion of the spray water evaporates ; the warm and saturated air is then discharged from the unit , removing heat from the system .
The spray water exits the fill section as a cooled fluid where it is collected by the redistribution basin for even soaking of the full footprint coil . The hot process fluid enters the coil through the bottom coil connection ( s ). The heat load is rejected to the circulating water that cascades over the coil surface by means of sensible heat transfer . The new ESW4 was designed to maximise capacity and optimise energy efficiency in Evapco ’ s single largest closed circuit cooler cell available . It was specifically developed for high tonnage applications , where the end user requires the lowest energy consumption on the fewest number of units and fans . The ESW4 further offers the highest number of models and box sizes in the industry and is CTI Certified in performance .
2022 www . frigairexpo . co . za
FOURWAYS AIRCONDITIONING
We call it the Fourways difference . You call it a welcome change . Fourways aircon , your trusted partner in HVAC innovation and solutions .
Family values are often instrumental in creating a strong sense of vision and identity for business leaders and Fourways Airconditioning is no different . Many installers , consultants and engineers struggle to find an HVAC partner that offers enough products and services required to support their business needs long term . But those that know , choose Fourways . For over 21 years , the Fourways name has been synonymous with integrity , hard work , loyalty , and commitment to customer satisfaction . It is these longstanding principles that have been instrumental to the company ’ s proud legacy of success .
Being the largest distributors of Samsung and Alliance products and offering leading residential and commercial air conditioning and water-heating solutions in and around Southern Africa , the brand ’ s promise of ‘ service above all else ’ still rings true , manifesting in Fourways becoming a one-stop-shop solution in terms of on-the-spot supply ,
FUCHS LUBRICANTS
The development of high-performance refrigeration oils . The interaction with other substances , in particular with the refrigerant , at fluctuating high and low temperatures creates very specific demands on the lubricant in the circuit .
The principal function of a refrigeration oil is to adequately lubricate all moving parts in the refrigerant compressor . Depending on the type of compressor , heat must also be dissipated , and compression chambers and valves have to be sealed .
The compressor type , the efficiency of the oil separator , the design of the refrigeration system , the operating parameters , and the refrigeration oil selection are all responsible for varying amounts of oil present in the refrigerant circuit . Oil content in the system usually can reach ranges from 1 to 5 % and in special cases also higher values . To ensure reliable oil circulation and to ensure that the oil returns from the ‘ cold ’ part of the circuit , refrigeration oils with satisfactory miscibility in the corresponding refrigerant are used .
Particularly during start-up periods , oil enrichment due to pronounced oil foaming as a result of dissolved design assistance , technical back-up , training , and long-term after-sales support . We offer a 5-year warranty on selected Samsung and Alliance products and unparalleled customer service built on a foundation of trust and reliability .
With all this and more it is easy to see why Fourways is a trusted go-to partner for countless HVAC professionals , delivering innovative solutions , whatever the size or scope a client ’ s business and projects may be .
refrigerant can occur . When the refrigerant evaporates the oil then cools down . If the flowability of the remaining oil is not sufficient ( due to high viscosity and / or poor refrigerant miscibility ), reliable return to the compressor is not possible . The compressor , on the other hand , requires a certain viscosity of the oil-refrigerant mixture . The optimum operating viscosity of the lubricant-subject to the influence of the refrigerant ( pressure- and temperature-related dissolution of refrigerant ) thus represents a compromise between minimum viscosity required for reliable compressor lubrication and the necessary low-temperature flowing properties needed to ensure sufficient oil circulation in the circuit .
24 www . coldlinkafrica . co . za COLD LINK AFRICA • June 2021