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Dials on pump no . 3
off-balance sheet solution for utilities such as cooling and heating .
Servitisation contracts typically span a significant period , typically between 10 and 20 years - 20 years in the case of the Clover contract - aligning with the lifespan of the refrigeration plant . These long-term agreements provide stability and predictability for both the service provider and the client . However , Clover also has the option to buy out the system at any point during the contract period . This flexibility ensures that customers are not locked into a service agreement if they are dissatisfied or wish to explore other alternatives .
The new system capacity is 10 MWR with the capability to expand to 15 MWR - and the system recovers 12 % of the waste heat to drive boiler efficiency by pre-heating feedwater . In addition , the solar system provides 16 % of the electricity to the refrigeration system , thereby decreasing carbon emissions and the life cycle cost of cooling .
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The system is an ammonia-based refrigeration system driven by Grasso screw compressors with evaporative condensing to ensure optimum efficiency . Heat recovery is from both the oil cooling system as well as the superheat from the discharge gas .
The system is a three-stage cascade plant that produces cooling a -28 ° C , -10 ° C and -2 ° C . The old ice banks were reduced in size to provide stability in the ice water temperature ( acting as a capacitor ). Ice water is supplied at 1 ° C , Glycol at -8 ° C and direct ammonia freezing at -22 ° C for the factory .
System efficiency was key so adding VSDs , heat recovery , active Coefficient of Performance ( COP ) control , and a threestage system design was paramount to drive efficiency as high as possible .
Ultimately , an effective increase of about 40 % of the system ’ s efficiency , compared to the old system , was achieved . In addition , the heat recovery and the solar PV system
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Project name : List of professionals : Owner Developer Architect / Designer Project manager
Consulting engineer
Contractors
Product suppliers
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Electrical Mechanical Wet services Civil Main building HVAC & R Wet services Electrical Product Compressors Condensers Vessels NH3 Pumps Glycol / Water Pumps Valves PHE VSDs MCC Evaporators Electrical Cabling Insulation Air Purger Tanks Ammonia Detection Control |
New Refrigeration Plant Name of company Clover N / A N / A Energy Partners N / A Energy Partners Engineering N / A N / A N / A Energy Partners Refrigeration N / A N / A Supplier GEA BAC Viola Hermetic Grundfos Danfoss Alfa Laval ABB IMC HC CSES Intertherm Hansen Interfab Bacharach Carel |