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Title of article :
The effect of irradiance growing on hydrogen photoevolution and on the kinetic growth in Rhodopseudomonas palustris, strain 42OL
Author/Authors :
Carlozzi، نويسنده , , Pietro، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
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Abstract :
The relationship between hydrogen generation and the age of culture was investigated under fed-batch growth conditions. The specific growth rate (μe) was determined during the log phase of the growth curve and the μeMax was 0.02643 h−1. Boltzmannʹs sigmoidal regression model was used to determine the specific rate of hydrogen evolution (μH): the maximum was 0.04440 h−1. At low irradiance (36–75 W m−2), an inverse relationship was found between μH and I; after increasing the irradiance further, μH reached a plateau (0.00916 h−1). The maximum reactor yield of cumulative hydrogen (4.5 l) was obtained at an irradiance of 320 W m−2, but the highest hydrogen evolution rate (17.217 ml h−1) was achieved at 500 W m−2. The light conversion efficiency reached its maximum (6.91%) at the lowest irradiance investigated (36 W m−2); when the irradiance increased further, it decreased progressively down to 0.36%.
Keywords :
BioH2 , specific growth rate , Specific rate of hydrogen evolution , Light conversion efficiency , Rhodopseudomonas palustris
Journal title :
International Journal of Hydrogen Energy
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Link To Document :