| Author | Audhie, Ronald |
| Call Number | AIT Thesis no.PP-09-09 |
| Subject(s) | Wood-pulp--Refining
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Pulp and Paper Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. PP-09-09 |
| Abstract | In the beginning of 20th century, conical refining evolved away from beaters used for fiber defibrillation. PPT field of study has new refiner that has not been work. DAQ send digital signal data to circuit created and converted in to analog signal data to be sent to Micromaster 440. With output range between 0 to 10 V, digital signal data which are sent to the circuit has to be in 4 bit. As used 4 bit the analog signal is divided into 0 to 15 in binary code. 0 is the lowest motor speed and 15 is the maximum motor speed. LabVIEW used to send the speed wanted to run the refiner and receives the Revolution counted by the sensor, so the RPM data can be acquired. Total revolution and RPM data taken from running the refiner for 30 minutes with no load in the refiner, the increment between each speed was around 140 RPM. Freeness for the refined fiber is decreased as the longer time in refining time and or the more revolution given to the fibers. Freeness for 0.15 mm gap with 1000 revolution is 630 ml CSF, 3000 revolution is 540 ml CSF, and 5000 revolution is 410 ml CSF. Freeness for 0.2 mm gap with 1000 revolution is 640 ml CSF, 3000 revolution is 590 ml CSF. 5000 revolution is 490 ml CSF. Freeness for 0.15 mm gap with 3 minutes refining time is 540 ml CSF, 5 minutes refining time is 400 ml CSF, 10 minutes refining time is 250 m l CSF. Freeness for 0.2 mm gap with 3 minutes refining time is 590 ml CSF, 5 minutes refining time is 450 ml CSF, 10 minutes refining time is 375 ml CSF. Fiber distribution changed as the refining time and or refining revolution increased. Short fiber distribution for 0.15 mm gap with 1000 revolution is 2003 (25.34%), 3000 revolution is 2544 (28.77%), 5000 revolution is 3253 (29.7%). Short fiber distribution for 0.2 mm gap with 1000 revolution is 1894 (25.33%), 3000 revolution is 2308 (26.93%), 5000 revolution is 2785 (28.23%). Short fiber distribution for 0.15 mm gap with 3 minutes revolution time is 2564 (26.77%), 5 minutes refining time is 3138 (27.22 %), 10 minutes refining time is 3527 (28.9%). Short fiber distribution for 0.2 mm gap with 3 minutes refining time is 2387 (27.34%), 5 minutes refining time is 2777 (28.69%), 10 minutes refining time is 30.34 (30.93%). |
| Year | 2009 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. PP-09-09 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Pulp and Paper Technology (PP) |
| Chairperson(s) | Nazhad, Mousa M. |
| Examination Committee(s) | Afzulpurkar, Nitin V.;Lehtinen, Esa;Viljakainen, Esa |
| Scholarship Donor(s) | Findland |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2009 |