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- Title
Разработка теплообменника с неподвижной гранулированной насад- кой для утилизации низкопотенциальной теплоты
- Authors
Бошкова, И. Л.; Волгушева, Н. В.; Солодкая, А. В.
- Abstract
Heat exchangers of regenerative type with a granulated filler intended for utilization of heat of exhaust gases are considered. It is noted that the use of flow disperse heat carriers allows to intensify the processes of heat exchange, which opens the prospect of using contact heat exchangers for utilization of low-potential off-gases heat. The technique of calculation thermal design of a heat exchanger with a fixed filler is presented. To determine the coefficient of intercomponent heat exchange, an empirical dependence was proposed in a dimensionless form, obtained as a result of processing experimental data on the study of heat exchange between the flow of gaseous heat transfer agent and a layer of solid particles. The results of calculating the heat exchanger according to the presented methodics are given. The values of the main geometric and physical characteristics are obtained: the volume of the heat exchanger, the height, the mass of the granular filler, and the duration of the heating period. Comparison with similar characteristics for a heat exchanger with a moving filler shows the advantage of the latter in thermal efficiency. However, when using a heat exchanger with a fixed packing, there is no need to organize a continuous movement of the layer of granular material, which greatly simplifies the operation and construction of the heat exchanger.
- Publication
Refrigeration Engineering & Technology, 2018, Vol 54, Issue 1, p10
- ISSN
0453-8307
- Publication type
Article
- DOI
10.15673/ret.v54i3.1096