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华亭煤空气、富氧及纯氧地下气化特性研究 被引量:9
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作者 黄温钢 王作棠 +1 位作者 段天宏 辛林 《洁净煤技术》 CAS 2011年第3期71-74,78,共5页
对比研究了气化剂中氧气体积分数分别为21%,32%,42%和100%条件下的主要产气指标。结果表明,随着气化剂中氧气体积分数的上升,煤气有效组分和煤气热值呈上升趋势;氧气消耗随之增加,空气消耗相应降低,煤耗量增加,水蒸汽消耗量增加,而水蒸... 对比研究了气化剂中氧气体积分数分别为21%,32%,42%和100%条件下的主要产气指标。结果表明,随着气化剂中氧气体积分数的上升,煤气有效组分和煤气热值呈上升趋势;氧气消耗随之增加,空气消耗相应降低,煤耗量增加,水蒸汽消耗量增加,而水蒸汽分解率下降;煤气产率呈下降趋势,而气化效率呈上升趋势;煤气产量和气化剂体积比由1.31降至1.16。 展开更多
关键词 华亭煤 体积分数 地下 产气指标
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Effects of Different Padding on Air Quality in Broiler House and Growth Physiological Index of Broilers 被引量:1
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作者 刘雪兰 张燕 +5 位作者 阎佩佩 井庆川 魏祥法 刘瑞亭 石天虹 武彬 《Agricultural Science & Technology》 CAS 2015年第12期2764-2769,共6页
[Objective] This study aimed to investigate the effects of different padding on ammonia concentration in broiler house and growth performance and blood indi- cators of broilers. [Method] A total of 480 one-day-old 817... [Objective] This study aimed to investigate the effects of different padding on ammonia concentration in broiler house and growth performance and blood indi- cators of broilers. [Method] A total of 480 one-day-old 817 broilers were selected. They were randomly divided into four groups with different paddings, and each group was in triplicate. The weights of broilers and feed were weighed weekly. The growth performance of broilers was determined. On day 30, the ammonia concentra- tions in broiler houses were determined. On day 35, 6 broilers were randomly se- lected from each group, and their vein blood was sampled. In the sampled vein blood, the concentrations of ammonia, glucose, globulin, serum total protein and urea nitrogen were determined. [Result] There were significant differences in ammo- nia concentration among broiler houses laid with different paddings (P〈0.05). The ammonia concentration in group 1 was significantly lower than those in group 3 and group 4 (P〈0.05). No significant difference was found in ammonia concentrations in broiler houses between group 2 and group 3 (P〉0.05). The ammonia concentration in group 4 was significantly higher than those in group1, group 2 and group 3 (,0〈 0.05). There were also significant differences in blood indicators among different groups (P〈0.05). The blood ammonia, blood glucose and serum urea nitrogen con- centrations in group 1 were significantly lower than those in other groups (P〈0.05), the serum total protein concentration was significantly higher than those in group 3 and group 4 (P〈0.05), and the serum globulin concentration was significantly higher than those in group 2, group 3 and group 4 (P〈0.05). Significant differences were observed in feed intake, body weight gain and slaughter weight between different groups (P〈0.05), but there were no significant differences in feed to grain ratio (P〉 0.05). [Conclusion] Under the experimental conditions, the padding of Chinese medicine residue showed better effect on reducing ammonia concentration in broiler house, which was conducive to play of production potential of broilers. 展开更多
关键词 Chinese medicine residue PADDING Ammonia concentration Production performance Blood indicators
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