屋外醗酵貯酒タンクに関する研究 : (第2報) 所要冷却熱経済について
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概要
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Because of high construction and installation costs of conventional fermenting and storing cellars in the lager beer brewing and great loss involved for the cooling by the use of conventional cellars, refrigeration expenses are an important element to constitute the beer cost. Modernization of the brewing industry requires large sized equipment, but this generally involves technical troubles connected with refrigeratio system as well as the quality control of beer produced.However, we have overcome these difficults after long repeated research and succeeded in developing large-sized well-insulated outdoor fermenting and storing tanks completely defferent from the conventional cellars. The tanks are made of stainless steel and equipped with an in-place cleaning apparatus. Cooling jackets are welded on the outside of the tanks. To control the temperatures of the fermenting or the storing of beer. The tanks are 8 metres high, as when they are uased as storage tanks, the liqid level of beer in store is related to the carbon dioxide content of the beer when bottled. The largest tank is 8 metres in diameter and its capacity is 4,000 hectrolitres.Kilo-calories required for the cooling during fermentation and storage in these outdoor tanks were compared with those in the conventional cellars from the following viewpoints : 1. Elimination of heat by fermentation.2. The cooling of beer.3. Elimination of heat by radiation through the insulation.4. Elimination of the heat caused by operating the tanks.The following results were obtained : 1. The loss of calories for the cooling was 10 Kilo-calories per hectoliter per day, which was 25.8% of that in conventional cellars.2. The total Kilo-calories for the cooling is reduced to 38% of that required in the conventional cellars.3. By measuring beer temperatures at vaious points in the tank, it is known that the temperature distribution is almost equivalent and can be controlled properly.
- 社団法人日本生物工学会の論文
- 1969-10-25