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volume 34 issue 4 (december 2011) : 259 - 266

EFFECT OF MOISTURE CONTENT AND BULK DENSITY ON MINIMUM FLUIDIZATION VELOCITY OF LATHYRUS (Lathyrus sativus L.) GRAIN

R
R.N. Kenghe*
P
P. M. Nimkar
S
S.S. Shirkole*
K
K.J. Shinde
1Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola- 444 104, India

  • Submitted|

  • First Online |

  • doi

Cite article:- Kenghe* R.N., Nimkar M. P., Shirkole* S.S., Shinde K.J. (2025). EFFECT OF MOISTURE CONTENT AND BULK DENSITY ON MINIMUM FLUIDIZATION VELOCITY OF LATHYRUS (Lathyrus sativus L.) GRAIN. Legume Research. 34(4): 259 - 266. doi: .

ABSTRACT

The relationship between pressure drop and the rate of airflow through agricultural products is important in design of drying or aeration systems. Pressure drops were measured in Lathyrus (cv. NLK-40, Pratik and Ratan) beds. The respective grain beds were at 7.33 to 18.80%, 6.75 to 18.30% and 7.90 to 19.40% (d. b.) moisture content with bulk density of 805 to 895, 795 to 875 and 770 to 855 kg m-3. The pressure drops were measured at 0.2 m bed depth for superficial air velocities ranging from, 0.0421 to 0.9813 m3 s-1 m-2, 0.0450 to 1.1024 m3 s-1 m-2 and 0.0484 to 1.1693 m3 s-1 m-2, respectively, for NLK-40, Pratik and Ratan. With increase in moisture content the minimum fluidization velocity values were found decreased. It was observed that with increase in bulk density the values of minimum fluidization were decreased linearly. The results indicated that 1% increase in moisture content decreased the pressure drop by 3.10%, whereas, 1% increases in bulk density decreased the pressure drop by 7.16%.

REFERENCES

  1. ASABE, (2007). Standards for resistance to airflow of grains, seeds and other agricultural products and perforated metal sheets. ASABE St. Josepth, MI.
  2. Clayton, G. and Campbell C.G. (1997). Promoting the conservation and use of underutilized and neglected crops: Grass pea (Lathyrus sativus L.) 18 : 48-49.
  3. Kashaninejad, M. and Tabil L.G. (2009). Resistance of bulk pistachio nuts (cv. ohadi) to airflow. J. Food Eng. 90, 1: 104 – 109.
  4. Khatchatourian, O. A. and Oliveira F. A. (2006). Mathematical modeling of airflow and thermal state in large aerated grain storage. Biosyst. Eng. 95, 2: 159 –169.
  5. Lukaszuk, J.M., Molenda, Horabik J., Szot B. and Montross M.D. (2008). Airflow resistance of wheat bedding as influenced by the filling method, J. Agri. Eng. Res. 54 2: 50 – 57.
  6. Mate V. N., Salve V.A. and Kadam P. B. (2009). Study of moisture content and resistance of airflow of blackgram. Int. J. Agri. Eng. (2) 1: 28-30.
  7. Mohsenin, N.N. (1986). Physical Properties of Plant and Animal Materials, Gordon and Breach Press, New York.
  8. Nimkar, P. M. and Chattopadhyay P. K. (2003). Airflow resistance of pulse grains. J. Food Sci. Tech. 40, 1: 28 – 34.
  9. Nimkar, P. M. and Khobragade B.V. (2006). Resistance of moth gram to airflow. Int. Food Sci. Tech. 41: 488 – 497.
  10. Nimkar, P. M. and Mate V.N. (2004). Resistance of black gram to airflow. J. Food Sci. Tech. 41,3: 308 – 312.
  11. Pagano, A.M. (2000). Airflow resistance of oat seeds: effect of airflow direction, moisture content and foreign material. J. Drying Tech. 18: 457 – 468.
  12. Rajabipour, A., Shahbazi F., Mohtasebi S. and Tabatabaeefar A. (2001). Airflow resistance in walnuts. J. Agri. Sci.Tech. 3: 257 – 264.
  13. Reed, S.D., Armstrong P.R., Brusewitz G.H. and Stone M.L. (2001). Resistance of marigold flower to airflow. Trans. ASAE. 44, 3: 639 – 462.
  14. Rotter, R. G., Marquardt R.R. and Campbell C.G. (1991). The nutritional value of low lathyrogenic lathyrus (L. sativus) for growing chicks. Britan Poultry Sci. 32: 1055 -1067.
  15. Shahbazi, F. and A. Rajabipour (2008). Resistance of potatoes to airflow. J. Agri. Sci. Tech. 10: 1 – 9.
  16. Shirkole S. S. (2010) Airflow resistance of soybean (cv. TAMS-38). Unpublished M. Tech. Thesis. Dr. PDKV, Akola, India.
  17. SPSS (1999). Statistical Package for Social Scientists. Prentice Hall, Chicago, IL.
  18. Verboven, P., Hoang M. L., Baclmans M. and Nicolaii B. M. (2004). Airflow through beds of apples and chicory roots. Biosyst. Eng. 88, 1: 117 – 125.
  19. Yang, X. and Williams D. L. (1990). Airflow resistance to grain sorghum as affected by bulk density. Trans. ASAE. 33, 6 : 1966 – 1970.
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    volume 34 issue 4 (december 2011) : 259 - 266

    EFFECT OF MOISTURE CONTENT AND BULK DENSITY ON MINIMUM FLUIDIZATION VELOCITY OF LATHYRUS (Lathyrus sativus L.) GRAIN

    R
    R.N. Kenghe*
    P
    P. M. Nimkar
    S
    S.S. Shirkole*
    K
    K.J. Shinde
    1Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola- 444 104, India

    • Submitted|

    • First Online |

    • doi

    Cite article:- Kenghe* R.N., Nimkar M. P., Shirkole* S.S., Shinde K.J. (2025). EFFECT OF MOISTURE CONTENT AND BULK DENSITY ON MINIMUM FLUIDIZATION VELOCITY OF LATHYRUS (Lathyrus sativus L.) GRAIN. Legume Research. 34(4): 259 - 266. doi: .

    ABSTRACT

    The relationship between pressure drop and the rate of airflow through agricultural products is important in design of drying or aeration systems. Pressure drops were measured in Lathyrus (cv. NLK-40, Pratik and Ratan) beds. The respective grain beds were at 7.33 to 18.80%, 6.75 to 18.30% and 7.90 to 19.40% (d. b.) moisture content with bulk density of 805 to 895, 795 to 875 and 770 to 855 kg m-3. The pressure drops were measured at 0.2 m bed depth for superficial air velocities ranging from, 0.0421 to 0.9813 m3 s-1 m-2, 0.0450 to 1.1024 m3 s-1 m-2 and 0.0484 to 1.1693 m3 s-1 m-2, respectively, for NLK-40, Pratik and Ratan. With increase in moisture content the minimum fluidization velocity values were found decreased. It was observed that with increase in bulk density the values of minimum fluidization were decreased linearly. The results indicated that 1% increase in moisture content decreased the pressure drop by 3.10%, whereas, 1% increases in bulk density decreased the pressure drop by 7.16%.

    REFERENCES

    1. ASABE, (2007). Standards for resistance to airflow of grains, seeds and other agricultural products and perforated metal sheets. ASABE St. Josepth, MI.
    2. Clayton, G. and Campbell C.G. (1997). Promoting the conservation and use of underutilized and neglected crops: Grass pea (Lathyrus sativus L.) 18 : 48-49.
    3. Kashaninejad, M. and Tabil L.G. (2009). Resistance of bulk pistachio nuts (cv. ohadi) to airflow. J. Food Eng. 90, 1: 104 – 109.
    4. Khatchatourian, O. A. and Oliveira F. A. (2006). Mathematical modeling of airflow and thermal state in large aerated grain storage. Biosyst. Eng. 95, 2: 159 –169.
    5. Lukaszuk, J.M., Molenda, Horabik J., Szot B. and Montross M.D. (2008). Airflow resistance of wheat bedding as influenced by the filling method, J. Agri. Eng. Res. 54 2: 50 – 57.
    6. Mate V. N., Salve V.A. and Kadam P. B. (2009). Study of moisture content and resistance of airflow of blackgram. Int. J. Agri. Eng. (2) 1: 28-30.
    7. Mohsenin, N.N. (1986). Physical Properties of Plant and Animal Materials, Gordon and Breach Press, New York.
    8. Nimkar, P. M. and Chattopadhyay P. K. (2003). Airflow resistance of pulse grains. J. Food Sci. Tech. 40, 1: 28 – 34.
    9. Nimkar, P. M. and Khobragade B.V. (2006). Resistance of moth gram to airflow. Int. Food Sci. Tech. 41: 488 – 497.
    10. Nimkar, P. M. and Mate V.N. (2004). Resistance of black gram to airflow. J. Food Sci. Tech. 41,3: 308 – 312.
    11. Pagano, A.M. (2000). Airflow resistance of oat seeds: effect of airflow direction, moisture content and foreign material. J. Drying Tech. 18: 457 – 468.
    12. Rajabipour, A., Shahbazi F., Mohtasebi S. and Tabatabaeefar A. (2001). Airflow resistance in walnuts. J. Agri. Sci.Tech. 3: 257 – 264.
    13. Reed, S.D., Armstrong P.R., Brusewitz G.H. and Stone M.L. (2001). Resistance of marigold flower to airflow. Trans. ASAE. 44, 3: 639 – 462.
    14. Rotter, R. G., Marquardt R.R. and Campbell C.G. (1991). The nutritional value of low lathyrogenic lathyrus (L. sativus) for growing chicks. Britan Poultry Sci. 32: 1055 -1067.
    15. Shahbazi, F. and A. Rajabipour (2008). Resistance of potatoes to airflow. J. Agri. Sci. Tech. 10: 1 – 9.
    16. Shirkole S. S. (2010) Airflow resistance of soybean (cv. TAMS-38). Unpublished M. Tech. Thesis. Dr. PDKV, Akola, India.
    17. SPSS (1999). Statistical Package for Social Scientists. Prentice Hall, Chicago, IL.
    18. Verboven, P., Hoang M. L., Baclmans M. and Nicolaii B. M. (2004). Airflow through beds of apples and chicory roots. Biosyst. Eng. 88, 1: 117 – 125.
    19. Yang, X. and Williams D. L. (1990). Airflow resistance to grain sorghum as affected by bulk density. Trans. ASAE. 33, 6 : 1966 – 1970.
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