A review of energy use in the food industry
A review of energy use in the food industry
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食品工业能源使用回顾
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
M. Okos
中科院分区：
文献类型：
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作者：
S. Drescher;N. Rao;J. Kozak;M. Okos
美国食品和类似产品行业标准行业代码（SIC）20由于其规模大，增长快，产品多样化，在美国经济和对外贸易中发挥着至关重要的作用。这项研究的目的是对食品工业的能源使用和趋势进行审查，食品工业是标准行业分类20部门内第五大能源使用者。食品工业的能源使用是按所有SIC 20行业的燃料和电力成本进行审查的，能源使用是按SIC 20能源消耗行业的燃料类型进行审查的。对食品工业能源使用的研究表明，能源密集型工业可能最有动力通过实施节能加工方法来降低能源成本。湿玉米碾磨是SIC 20行业中能源密集度最高的行业，占总能源使用量的15%。甜菜制糖业是第二大能源消耗行业（7%），而豆油米尔斯厂、麦芽饮料厂和肉类加工厂各占该行业总能源消耗的5%左右。为了确定单个工厂中的哪些工艺是能源密集型或低效的，必须进行能源分析。更多»食品工业中的工艺和单元操作在复杂性和能耗方面各不相同。在本报告中，过程被定义为使用一个或多个单元操作的过程。介绍了每个SIC部门中最耗能的工艺和单元操作。在食品工业中，过程加热和冷却是最耗能的过程，占总能量投入的44.6%。锅炉损失平均约占能源投入的22%。湿玉米碾磨、大豆油碾磨和乳制品工业是有许多节能和废物最小化机会的行业。这些行业的说明和改进的机会进行了讨论。«少
The US food and kindred products industry of Standard Industry Code (SIC) 20 plays a vital role in the US economy and in foreign trade due to its large size, growth, and diverse products. The objective of this study was to conduct a review of the energy use and trends in the food industry, the fifth largest user of energy within the SIC 20 sector. Energy use in the food industry is examined by cost of fuels and electricity in all SIC 20 industries, energy use by fuel type in the top SIC 20 energy consuming industries. Examination of energy use in the food industries reveals energy intensive industries that may have the most incentive to reduce energy costs by implementing energy efficient processing methods. Wet corn milling is the most energy intensive industry in the SIC 20 sector with a 15% share of the total energy used. The beet sugar industry is second in energy use (7%), while soybean oil mills, malt beverage, and meat packing plants take about 5% each of the total energy use in this sector. In order to determine which processes in an individual plant are energy intensive or inefficient, energy analyses must be performed.more » Processes and unit operations in the food industry vary in complexity and energy consumption. In this report, processes are defined as procedures using one or more unit operations. The most energy consuming processes and unit operations in each SIC sector are presented. Process heating and cooling was the most energy consuming process in the food industry taking up 44.6% of the total energy input. Boiler losses accounted for an average of about 22% of energy inputs. Wet corn milling, soybean oil milling, and the dairy industry are industries that have many opportunities for energy conservation and waste minimization. These industries are illustrated and opportunities for improvements discussed.« less