Technologies for sustainable heat generation in food processing

被引:5
|
作者
Grossmann, Lutz [1 ]
Hinrichs, Joerg [2 ]
Weiss, Jochen [3 ]
机构
[1] Univ Massachusetts, Dept Food Sci, 102 Holdsworth Way, Amherst, MA 01003 USA
[2] Univ Hohenheim, Inst Food Sci & Biotechnol, Dept Soft Matter Sci & Dairy Technol, Stuttgart, Germany
[3] Univ Hohenheim, Inst Food Sci & Biotechnol, Dept Food Mat Sci, Stuttgart, Germany
关键词
CO2; food manufacturing; food system; H-2; infrared; microwave; power to H-2; renewable energy; sustainable heating; sustainable processing; MICRO-COMBINED-HEAT; MANUFACTURING COST MODEL; FAR-INFRARED RADIATION; LIFE-CYCLE ASSESSMENT; CELL COMBINED HEAT; INTERNAL-COMBUSTION; POWER-PLANTS; EMISSION CHARACTERIZATION; COMPREHENSIVE ANALYSIS; COGENERATION PLANT;
D O I
10.1111/1541-4337.13035
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The utilization of heat is one of the foundations of modern food processing. At present, boilers that operate on fossil fuels are still dominating the generation of hot water, steam, and hot air in the food industry. In light of sustainability goals and carbon taxes as well as international efforts to reduce the dependence on natural gas, new technologies are needed to lower the greenhouse gas emissions related to thermal processing of foods. This review discusses important technologies that could serve as a replacement for conventional fossil fuel boilers in the future. These technologies are based on electricity, geothermal energy (direct/indirect use), and electricity to hydrogen conversion and include fuel cells, microturbines, engines, electrical boilers, heat pumps, radiation, and use of geothermal energy. The majority of these technologies are already available for implementation at larger scales and emissions are generally lower compared to burning fossil fuels. At present, major obstacles, such as low fossil fuel prices, still exist that prevent the widespread adoption of more sustainable heating technologies. However, the direct transformation of electrical energy and utilization of geothermal energy for heating purposes seem promising and should be more frequently installed in the future, whereas the use of H-2 obtained through electrolysis as a transportable source of energy may also serve as a source of thermal energy where it is useful to generate electricity and heat on the production site or where the availability of electricity is limited.
引用
收藏
页码:4971 / 5003
页数:33
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