Recycling and Re-Use of Low Pressure Flash Steam in the Continuous Cooking of Cereals in the Production of Grain Spirit. Demonstration Project at the Girvan Grain Distillery of Wm. Grant and Sons Ltd. (GB)

摘要

Energy savings in steam production of 31.6% have resulted from the installation of a waste heat recovery system at Wm Grant's grain distillery at Girvan, Ayrshire. The savings, worth over Pound 100,000/year in fuel oil costs, are due to recycling steam from the cooler to pre-heat the incoming grain maize slurry. The slurry is also treated to reduce its viscosity during the pre-heating process. The net financial savings in the first three years after the plant became operational in January 1981 were Pound 324,700, so the break-even point on a capital cost of Pound 228,780 was 2.2 years at production levels which, during 1981-1983, were depressed by around 30% compared with 1980 and preceding years. (ERA citation 11:056327)