ANALISIS MATEMATIS PENGARUH TINGGI KOLOM DAN DEBIT UDARA PENGERING TERHADAP KINERJA MESIN PENGERING TIPE FLASH UNTUK PENGERINGAN OKARA
Okara or soy residue is a byproduct of soymilk and tofu production process and is separated from the main process at the filtration step. Okara is a wet material that is still contains nutrients with high moisture content around 80- 90% so it is not durable for storage. To extend the shelf life it m...
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| Format: | Thesis |
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[Yogyakarta] : Universitas Gadjah Mada
2013
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| _version_ | 1797033614194507776 |
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| author | , AFNITA NUR AMALINA , Dr. Joko Nugroho W.K, STP.M.Eng. |
| author_facet | , AFNITA NUR AMALINA , Dr. Joko Nugroho W.K, STP.M.Eng. |
| author_sort | , AFNITA NUR AMALINA |
| collection | UGM |
| description | Okara or soy residue is a byproduct of soymilk and tofu production
process and is separated from the main process at the filtration step. Okara is a
wet material that is still contains nutrients with high moisture content around 80-
90% so it is not durable for storage. To extend the shelf life it must be converted
to dry okara that is more durable and can increase the economic value such as
okara flour. In this study, the drying process will be done by a pneumatic flash
dryer by utilizing high speed blast of hot air as the medium of drying. This dryer
has a blower to take the air and blow it into the dryer, has a heater to heat the air
so the air is used as medium of drying, and has a cyclone to separate between the
drying air and dry okara. This study aims to analyze the process of okara drying
by pneumatic flash dryer and knowing the effect of air flow rate and the effect of
column height to changes in water content.
Material to be dried is okara that has an initial moisture content which is
around 70-80%. Before drying process, okara is squeezed first to reduce the water
content of okara. The drying will be done with 3 variations of the air flow rate and
3 variations of drying column height. Variations of air flow rate that used is 0.095m3/s, 0123 m3/s, and 0.141 m3/s. variations of drying column height that used is 70 cm, 140 cm, and 210 cm. Okara was dried by several cycles with different drying time to become dry okara. Moisture content measurements performed before the material is dried and at the end of each drying cycle. This is done in order to decrease the moisture content that occurs during the drying process can be
known. Measurements of air temperature inside the drying column, temperature
and relative humidity of the environment is done by the minute. To determine the
effect of air flow rate and drying column height during the drying process
performed by the method of SPSS statistical analysis.
The results show that the greater air flow rate, the decrease of water
content is less. The drying that use 70 cm drying column height produce the
decrease of water content faster because it takes a short time to get to the cyclone.
The higher air flow rate that is used, the efficiency of drying and heating are less.
The product of dried okara has a size of average particle diameter is between
0.508 mm to 0.832 mm. |
| first_indexed | 2024-03-13T22:56:43Z |
| format | Thesis |
| id | oai:generic.eprints.org:121675 |
| institution | Universiti Gadjah Mada |
| last_indexed | 2024-03-13T22:56:43Z |
| publishDate | 2013 |
| publisher | [Yogyakarta] : Universitas Gadjah Mada |
| record_format | dspace |
| spelling | oai:generic.eprints.org:1216752016-03-04T08:21:00Z https://repository.ugm.ac.id/121675/ ANALISIS MATEMATIS PENGARUH TINGGI KOLOM DAN DEBIT UDARA PENGERING TERHADAP KINERJA MESIN PENGERING TIPE FLASH UNTUK PENGERINGAN OKARA , AFNITA NUR AMALINA , Dr. Joko Nugroho W.K, STP.M.Eng. ETD Okara or soy residue is a byproduct of soymilk and tofu production process and is separated from the main process at the filtration step. Okara is a wet material that is still contains nutrients with high moisture content around 80- 90% so it is not durable for storage. To extend the shelf life it must be converted to dry okara that is more durable and can increase the economic value such as okara flour. In this study, the drying process will be done by a pneumatic flash dryer by utilizing high speed blast of hot air as the medium of drying. This dryer has a blower to take the air and blow it into the dryer, has a heater to heat the air so the air is used as medium of drying, and has a cyclone to separate between the drying air and dry okara. This study aims to analyze the process of okara drying by pneumatic flash dryer and knowing the effect of air flow rate and the effect of column height to changes in water content. Material to be dried is okara that has an initial moisture content which is around 70-80%. Before drying process, okara is squeezed first to reduce the water content of okara. The drying will be done with 3 variations of the air flow rate and 3 variations of drying column height. Variations of air flow rate that used is 0.095m3/s, 0123 m3/s, and 0.141 m3/s. variations of drying column height that used is 70 cm, 140 cm, and 210 cm. Okara was dried by several cycles with different drying time to become dry okara. Moisture content measurements performed before the material is dried and at the end of each drying cycle. This is done in order to decrease the moisture content that occurs during the drying process can be known. Measurements of air temperature inside the drying column, temperature and relative humidity of the environment is done by the minute. To determine the effect of air flow rate and drying column height during the drying process performed by the method of SPSS statistical analysis. The results show that the greater air flow rate, the decrease of water content is less. The drying that use 70 cm drying column height produce the decrease of water content faster because it takes a short time to get to the cyclone. The higher air flow rate that is used, the efficiency of drying and heating are less. The product of dried okara has a size of average particle diameter is between 0.508 mm to 0.832 mm. [Yogyakarta] : Universitas Gadjah Mada 2013 Thesis NonPeerReviewed , AFNITA NUR AMALINA and , Dr. Joko Nugroho W.K, STP.M.Eng. (2013) ANALISIS MATEMATIS PENGARUH TINGGI KOLOM DAN DEBIT UDARA PENGERING TERHADAP KINERJA MESIN PENGERING TIPE FLASH UNTUK PENGERINGAN OKARA. UNSPECIFIED thesis, UNSPECIFIED. http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=61772 |
| spellingShingle | ETD , AFNITA NUR AMALINA , Dr. Joko Nugroho W.K, STP.M.Eng. ANALISIS MATEMATIS PENGARUH TINGGI KOLOM DAN DEBIT UDARA PENGERING TERHADAP KINERJA MESIN PENGERING TIPE FLASH UNTUK PENGERINGAN OKARA |
| title | ANALISIS MATEMATIS PENGARUH TINGGI KOLOM DAN DEBIT UDARA PENGERING TERHADAP KINERJA MESIN PENGERING TIPE FLASH UNTUK PENGERINGAN OKARA |
| title_full | ANALISIS MATEMATIS PENGARUH TINGGI KOLOM DAN DEBIT UDARA PENGERING TERHADAP KINERJA MESIN PENGERING TIPE FLASH UNTUK PENGERINGAN OKARA |
| title_fullStr | ANALISIS MATEMATIS PENGARUH TINGGI KOLOM DAN DEBIT UDARA PENGERING TERHADAP KINERJA MESIN PENGERING TIPE FLASH UNTUK PENGERINGAN OKARA |
| title_full_unstemmed | ANALISIS MATEMATIS PENGARUH TINGGI KOLOM DAN DEBIT UDARA PENGERING TERHADAP KINERJA MESIN PENGERING TIPE FLASH UNTUK PENGERINGAN OKARA |
| title_short | ANALISIS MATEMATIS PENGARUH TINGGI KOLOM DAN DEBIT UDARA PENGERING TERHADAP KINERJA MESIN PENGERING TIPE FLASH UNTUK PENGERINGAN OKARA |
| title_sort | analisis matematis pengaruh tinggi kolom dan debit udara pengering terhadap kinerja mesin pengering tipe flash untuk pengeringan okara |
| topic | ETD |
| work_keys_str_mv | AT afnitanuramalina analisismatematispengaruhtinggikolomdandebitudarapengeringterhadapkinerjamesinpengeringtipeflashuntukpengeringanokara AT drjokonugrohowkstpmeng analisismatematispengaruhtinggikolomdandebitudarapengeringterhadapkinerjamesinpengeringtipeflashuntukpengeringanokara |