CH3041 Chemical Engineering Unit Operations II Lau Wai Man‚ Raymond Jiang Rongrong Office: N1.2-B2-32 Office: N1.2-B1-08 Phone: 6316 8830 Phone: 6514 1055 Email: wmlau@ntu.edu.sg Email: rrjiang@ntu.edu.sg Course Outline • Particulate Technology – Particle size analysis – Packed bed – Gas-solid fluidized bed – Gas-liquid-solid fluidized bed • Filtration • Crystallization • Drying Covered by Prof. Jiang Rongrong Grading • Continuous Assessment – 30% Quizzes • Exam – 70% Final
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Graphene based Supercapacitors with Improved Specific Capacitance and Fast Charging Time at High Current Density Santhakumar Kannappana‚ Karthikeyan Kaliyappanb‚c‚ Rajesh Kumar Maniand‚ Amaresh Samuthira Pandianb‚ Hao Yange ‚ Yun Sung Leeb‚ Jae-Hyung Janga‚f and Wu Lua‚e* a) Department of Nanobio Materials and Electronics‚ Gwangju Institute of Science and Technology‚ Gwangju 500-712‚ Republic of Korea. b) Faculty of Applied Chemical Engineering‚ Chonnam National University‚ Gwangju‚ 500757
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25.3 °C | 25.2 °C | Temperature of hot water and metal in hot water bath: | 100.3 °C | 100.3 °C | 100.3 °C | Final temperature reached in the calorimeter: | 27.5 °C | 32.2 °C | 28.0 °C | Calculations: Part I : 1.) m = mass of water = density x volume = 1 x 26 = 26 grams ΔT = T(mix) - T(water) = 38.9 - 25.3 = 13.6 q(water) = 26 x 13.6 x 4.18 q(water) = 1478 Joules 2.) qmetal = -205 J = 15.363 g X c X (27.2 - 100.3 C) c = 0.183 J/gC Part II: q(water) = - q(metal) q(metal) =
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Ship Stability for Masters and Mates Ship Stability for Masters and Mates Fifth edition Captain D. R. Derrett Revised by Dr C. B. Barrass OXFORD AUCKLAND BOSTON JOHANNESBURG MELBOURNE NEW DELHI Butterworth-Heinemann Linacre House‚ Jordan Hill‚ Oxford OX2 8DP 225 Wildwood Avenue‚ Woburn‚ MA 01801-2041 A division of Reed Educational and Professional Publishing Ltd A member of the Reed Elsevier plc group First published by Stanford Maritime Ltd 1964 Third edition (metric) 1972 Reprinted
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OIL SPILL PROJECT NO.6 Statement of Problem: In this project‚ the goal is to apply the knowledge of fluid dynamics in order to determine the effect of two parameters (oil density and volume fraction) on how long will it take for an oil drop to rise a distance of 1m in an oil/water distribution. Data: The following information was provided; | |Water | | | | | | | |
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January 2011 Math Anxiety: Fertilizer Calculations Y OU MAY KNOW people who suffer from math anxiety. They avoid situations where mathematics and calculations are required. However‚ avoiding math is simply not an option when working with agriculture. The International Plant Nutrition Institute (IPNI)... in cooperation with university specialists...has recently published a “how-to” workbook that presents commonly used mathematical concepts in agriculture. It begins with simple arithmetic
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and theories of anthropology while applying them to a virtual world. The title of the book is a play on Margret Mead’s classic work Coming of Age in Samoa (1928). Second Life is a platform created by Linden Lab. Their aim was to create a “revolutionary new form of shared 3D experience” (Linden Labs). Coming of Age in Second Life is divided into three parts and nine chapters. The first part‚ titled “Setting the Virtual Stage” contains three background chapters that set the context of the research.
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Purpose : To demonstrate the principle of buoyancy of warm air. Additional information : The density variation between warm and cool air can be used to explain why warm air possesses higher buoyancy. As hot air contain atoms and molecules with higher kinetic energy than cold air‚ it has a lower density and rises up while the colder air goes downwards. In other words‚ cool air ‘sinks down’ displacing the warm air. Required materials : Balloon
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thealcohol T = ρAl V g - ρE V g =(ρAl - ρE) V g =(ρAl - ρE) * 10E-4 *9.8 converting the volume to m3 Using 2700 for the density of Al and 790 for the density ofethyl alcohol T = 1910 * 10E-4 * 9.8 = 1.87 N A wood block with a density of 700 floats in water. What is the distance from the top of the block to the water if the water is fresh? (a) density of fresh water is ρ_water = 1000 kg/m³ ΣF = 0 - (ρ_wood)g(V_wood) + (ρ_water)g(v_wood) = 0 (v_wood)/(V_wood) = (ρ_wood)/(ρ_water)
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Color: Colorless to light yellow. pH (1% soln/water): 7 [Neutral.] Boiling Point: 201.7°C (395.1°F) Melting Point: 19.7°C (67.5°F) Critical Temperature: Not available. Specific Gravity: 1.03 (Water = 1) Vapor Pressure: 0.1 kPa (@ 20°C) Vapor Density: 4.1 (Air = 1) Volatility: Not available. Odor Threshold: Not available. Water/Oil Dist. Coeff.: Not available. Ionicity (in Water): Not available. Dispersion Properties: See solubility in water‚ methanol‚ diethyl ether. Potential Acute
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