| dc.description.abstract | Farm waste that can be utilized to be briquettes is cow dung and buffalo
dung. The research conducted by using of bomb calorimeter conducted that the
obtained the cow dung spesific energy is 10.908 MJ/kg and the spesific energy of
risk husk is 12.338 MJ/kg. Cattle and buffalo dung were taken from the farmer
farm in Besuki Sub-district, Semboro Sub-district, Jember Regency, and risk husk
were obtained from rice processing waste. Cow dung and buffalo dung as raw
material fo briquette making is one alternative fuel solution. This research aimed
to know the calorific value of buffalo dung and characteristic of briquette
produced by cow dung and buffalo dung mixed with rice husk. This research was
conducted from January 2016 to October 2016 at the Laboratory of Farm
Machinery and Equipment Engineering Faculty of Agriculture Technology
University of Jember and Renewable Energy Laboratory of Jember State
Polytechnic. This research was conducted by comparison of cow dung, buffalo
dung with, and rice husk charchoal were 20 gr, 80 gr, and 50 gr and with the
adding of tapioca starch solution. The observations buffalo dung spesific energy
and the briquete spesific energy, ash content, moisture content, flame duration of
briquette, and maximum temperature from both type of briquete. The results
obtained analyzed using the T-test. Based on the using bomb calorimeter, the
specific energy of buffalo dung was 3275,67 cal/gr. The value of briquete specific
energy, ash content, moisture content, and maximum temperatue from buffalo
briquettes was superior, only in terms of of flame duration the cow briquete was
superior. Buffalo briquetes specific energy was 2658,65 cal/gr and cow briquette
was 2599,16 cal/gr. The ask content of buffalo briquete was also less with the
value of 127 gr and cow briquete was 138.25 gr. Buffalo briquettes was also had
less water content was (5.99%) and cow briquete water content was (8.55%).
Buffalo combustion briquete were depleted quickly in 150 minutes but the
temperature was higher (208.13º C) compared with cow briquete with a long time
of combustion (210 minutes) with a maximum temperature of 207º C. The T-test
showed that the characteristics of buffalo briquete and cow briquete spesific
energy, ash content and moisture content were significantly different, while the
flame duration and the briquete temperature were not different. | en_US |
