نتایج جستجو برای: normal temperature of boiling points

تعداد نتایج: 21238341  

Journal: :Journal of the American Chemical Society 1919

In this study, by using the finite volume method, the heat transfer in a convective straight fin with temperature-dependent thermal properties and an internal heat generation under multi-boiling heat transfer modes are analyzed. In this regard, the local heat transfer coefficient is considered to vary within a power-law function of temperature. In the present study, the coexistence of all the b...

Journal: :Journal of Chemical Education 2003

2013
Ho Seon Ahn Ji Min Kim Chibeom Park Ji-Wook Jang Jae Sung Lee Hyungdae Kim Massoud Kaviany Moo Hwan Kim

We report a novel boiling heat transfer (NBHT) in reduced graphene oxide (RGO) suspended in water (RGO colloid) near critical heat flux (CHF), which is traditionally the dangerous limitation of nucleate boiling heat transfer because of heater failure. When the heat flux reaches the maximum value (CHF) in RGO colloid pool boiling, the wall temperature increases gradually and slowly with an almos...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1388

asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...

Background and Objectives: One of the biggest concerns in the field of food safety is the presence of pesticide residue in food products. The purpose of this study was to investigate the effects of different methods of storage conditions and washing and cooking methods on the deltamethrin residue of edible mushroom.  Materials & Methods: Edible mushroom samples were contaminated with deltameth...

2009
M. Sunder D. Banerjee

0142-727X/$ see front matter 2008 Elsevier Inc. A doi:10.1016/j.ijheatfluidflow.2008.08.003 * Corresponding author. Tel.: +1 979 845 4500; fax E-mail address: [email protected] (D. Banerjee Surface temperature fluctuations that occur locally underneath departing bubbles in pool boiling are shown to result in local heat transfer coefficients ranging from 1 to 10 kW/cm. These estimates were repo...

Journal: :تحقیقات دامپزشکی 0
علی حشمتی گروه بیوشیمی و تغذیه دانشکده پزشکی، دانشگاه علوم پزشکی و خدمات بهداشتی درمانی همدان، همدان، ایران جمیله سالار آملی گروه علوم پایه، دانشکده دامپزشکی دانشگاه تهران، تهران–ایران و مرکز تحقیقات سم شناسی و مسمومیت های دامی، دانشکده دامپزشکی دانشگاه تهران، تهران–ایران ابولفضل کامکار گروه بهداشت و کنترل مواد غذایی، دانشکده دامپزشکی دانشگاه تهران، تهران–ایران جلال حسن گروه علوم پایه، دانشکده دامپزشکی دانشگاه تهران، تهران–ایران و مرکز تحقیقات سم شناسی و مسمومیت های دامی، دانشکده دامپزشکی دانشگاه تهران، تهران–ایران غلامرضا جاهد گروه بهداشت مواد غذایی، دانشکده بهداشت دانشگاه علوم پزشکی تهران، تهران–ایران

background: antibiotic residue in food is a major concern from a health point of view. post-slaughter and pre-consumption processing such as cooking could affect residue. objectives: the purpose of this study is to survey the effect of boiling and microwave on tilmicosin in chicken. methods: chicken samples containing different tilmicosin amounts cooked in boiling water and in the microwave. af...

In this paper, a modified two-fluid model has been adopted to simulate the process of upward vertical subcooled flow boiling of refrigerant R-113 in a vertical annular channel at low pressure. The modified model considers temperature dependent properties and saturation temperature variation and was validated against a number of published low-pressure subcooled boiling experiments. The results s...

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