Conclusion and discussion:
The following conclusions are drawn from the simulations performed for the solar hybrid tunnel dryer:
· The current solar hybrid tunnel dryer has employed conventional pipeline configuration, which leads to the non-uniform temperature in the pipeline.
· The proposed new pipeline configuration reduces the drop in temperature across the pipeline so that the hot air exiting at every outlet has a fairly uniform temperature whose magnitude is close to that of the inlet temperature.
The present simulation does not incorporate the type of crop with moisture content and geographical conditions. However, it is to be noted that experimental validation cannot be performed due to unavailability of research articles in solar hybrid tunnel dryer testing. Further, it is planned to establish an experimental setup in solar hybrid tunnel dryer and perform the temperature distribution for the new pipeline configuration.
Scope of the project
Ø To utilize the available solar energy efficiently so that the large-scale drying process can be done at a low cost.
Ø Improvisation in the design of pipelines leads to the even distribution of heat energy throughout the solar hybrid tunnel dryer, thereby minimizing the energy losses.
Ø Improving the distribution of heat improves the drying rate of the crops which in turn reduces the time taken for the drying process.
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