Abstract
A water hyacinth ( Eichhornia crassipes) chopper cum crusher was developed at College of Technology and Engineering, Udaipur, India to solve the problem of the bulk of freshly harvested water hyacinth during transportation. The performance of the chopper cum crusher was evaluated on the basis of its ability to reduce volume and weight of fresh water hyacinth. Two variables namely feed rate and knife speeds were studied. Relationships were developed between changes in specific volume, knife speed; percent weight loss and feed rates. Weight reduction studies showed that, with the increase in feed rate and knife speed, there was a decrease in weight loss. Maximum weight loss of 33·77% was achieved with the minimum feed rate of 1·0 t h −1 and knife speed of 3·14 m s −1. Regression models were developed to fit the data. The developed machine reduced the specific volume and weight of fresh water hyacinth by up to 64 and 31·54%, respectively, at the recommended feed rate of 1·0 t h −1 and knife speed of 4·71 m s −1.
Published Version
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