Browsing Buletin Keteknikan Pertanian by Author "Tambunan, Armansyah H."
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Desain dan Uji Teknis Alat Pengukur Nilai Dielektrik Berdasarkan Metoda Q-Meter
Tambunan, Armansyah H. | Suyanto, Nugroho A | Harmen (2000)Dielectric heating has received a lot of attention recently. Microwave heating, however, has the problem of noticeable hot and cold spots within a food. Radio frequency (RF) has the potential to overcome this problem because ... -
Karakteristik Pembekuan Vakum Pulp Markisa
Tambunan, Armansyah H. | Rohanah, Ainun | Purwanto, Y. Aris (2003)Pemilihan metode pembekuan merupakan salah satu aspek yang penting, khususnya dari sisi keteknikan. Pembandingan karakteristik pembekuan dan mutu produk yang dibekukan dengan berbagai metoda dapat digunakan untuk keperluan ... -
Penentuan Rasio Jenis (Cp/Cv) untuk Gas N2 dan H2
Trisasiwi, Wiludjeng | Wulandani, Dyah | Abdullah, Kamaruddin | Tambunan, Armansyah H. (1998)The ratio of specifc heat capacity, at constant presszrre to that at constant volume (cdc,J, of a gas can be determined by either the adiabatic expansion method or the sound velocity method. The objective of this experiment ... -
Penerapan Sistem Pendinginan Evaporatif untuk Penanganan Pasca Panen Hasi Pertanian
Tambunan, Armansyah H. | Rismawan, Hedi R. | Silalahi, Isabella (1999)Post harvest handling and treatment of agricultural prodz~ct is extremely important in maintaining all of the possible qzralify of the prodzilrct. Most of the product needs to be handled and treated at low temperature. ... -
Pengaruh Arus Luaran LRC pada Metoda Q-Meter Terhadap Hasil Pengukuran Nilai Sifat Dielektrik di Sekitar Frekuensi Radio
Harmen | Tambunan, Armansyah H. (2003)Various measuring method of dielectric properties has been studied by researchers, one of wich is the Booton 160-A Q-meter operated within the radio frequency range. Determination of dielectric properties by the Q-meter ... -
Pengaruh Laju Pembekuan dan Suhu Permukaan Bahan Terhadap Waktu Pengeringan Beku Daging Sapi Giling
Lisnawati, Yulia | Tambunan, Armansyah H. (1997)Freeze drying of food materials is a time and energy consuming process, hence a high cost process. The drying rate is limited by heat and mass transfer process within the dried portion of the product. In order to improve ... -
Rancang Bangun Alat dan Pengukuran Nilai Dielektrik pada Kisaran Frekuensi Radio
Harmen | Tambunan, Armansyah H. | Hartulistiyoso, Edy | Subrata, I Dewa Made (2001)Dielectric properties indicate the ability of a system to stare, tmmit and reflect electromagnetic wave energy. Recently, the utikatitm of the propetties in agrcutture field tends to incmase. For example, d&ct& of bhgical ... -
Simulasi Karakteristik Pengeringan Beku Daging Sapi Giling
Tambunan, Armansyah H. | Solahudin, M. | Rahajeng, Estri (2000)Drying characteristic of a particular product is important in analyzing the appropriateness of the drying method for the product. This is especially important for freeze drying, which is known as the most expensive drying ...