EFFECT OF USING PRESSING ON THERMAL CONDUCTIVITY OF RICE STRAW BRICKS
2010
For studying the effect of using pressing on thermal conductivity for rice straw two particle sizes of rice straw were used, large rice straw chops "LRSC" and Small rice straw chops "SRSC". Three moisture contents percentages were used (10, 20 and 30%), three ratios of additives materials (5,10 and 15%) and three formation pressures were used (5.86, 12.37 and 18.51MPa). The thermal conductivity test was carried out on compressed rice straw samples. The results indicated that increasing of deformation pressure lead to decrease the thermal conductivity values for both large and small rice straw chops. The maximum value of thermal conductivity was 0.0362 w/m.°c for large rice straw chops at deformation pressure of 12.37MPa. The minimum value of thermal conductivity was 0.0091 w/m.°c for small rice straw chops at deformation pressure of 18.51MPa.
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