Objectif The project will utilise a new steam compression heat pump developed by EA Technology, formerly Electricity Research and Development Centre (ERDC) integrated into a novel process for recovering heat from the cooling circuit of a condenser heat exchanger used in a distillation process. The compressor uses air handling Roots air blowers, developed by EA Technology, to accept steam. They are considerably lower in capital cost and take up less physical space compared with conventional screw-type steam compressors. The new steam compression heat pump is to be integrated into the distillation process by taking "flash" steam at about 0.5 bar, fed by hot water at a temperature of 80 deg. C - 85 deg. C from the cooling circuit of a condensor heat exchanger, and recompressing it to 1.7 bar for feeding back to the process.L%At present the Tobermory distillery has heat recovery at some stages of the process, including preheating a proportion of the mashing water (barley/hot water) in the wort (liquid obtained after masking) cooler; preheating the charge (fermented liquor) to the wash still with pot ales (residue in the wash still after distillation, and by spent less (residue in the spirit still after distillation).The project will optimise heat recovery at the distillery by installing a low cost steam compression heat pump to recover waste heat at the distillation stage from the wash stills, currently dumped in the sea. There are two wash stills each charged with about 13000 litres of wash with an alcohol content of approximately 7% v/v. The stills are indirectly steam heated from a conventional oil-fired boiler house by annular pan heaters. Alcohol-rich vapours are produced which are condensed in water cooled condensors. The heat pump will recover the waste heat from the condensors by converting itto low pressure steam and then upgrading it to feed the stills at 1.7 bar. This will reduce significantly the steam requirement from the boilerhouse. Additional benefits include a reduction in water consumption and treatment costs at the boiler, hot discharges to the atmosphere and carbon dioxide (CO2) emissions. Implementation of the project is to be by five phases. Phase 1 is the detailed design stage of the complete heat recovery system, leading to specification of plant and pipe sizing, plant layout, including steam compressor heat pump package, condensors, subcoolers, flash vessels, together with instruments, controls, valves and pipe work. Phase II is the procurement stage, followed by Phase III, installation including pipe work modifications to existing plant. Phase IV covers the commissioning of the system, and finally, Phase V, the evaluation stage to prove the operation of the system by applying continues monitoring over 6 months. The whole project will run for 21 months. Programme(s) ENG-THERMIE 1 - Programme (EEC) for the promotion of energy technology in Europe (THERMIE), 1990-1994 Thème(s) 2.3 - INDUSTRY Appel à propositions Data not available Régime de financement DEM - Demonstration contracts Coordinateur EA Technology Ltd Contribution de l’UE Aucune donnée Adresse Capenhurst CH1 6ES Chester Royaume-Uni Voir sur la carte Coût total Aucune donnée
