HVAC Systems: Air Conditioning Dr. Harjit Singh Room 116 Howell Building harjit.singh@brunel.ac.uk Fridays 09.30 – 11.30am Unless otherwise specified For students enquiries: 1 Building Services Engineering: Building Air Conditioning Module (ME5508)‚ Brunel University Introduction to the module • Credit: 15 • Teaching materials: – Provided for the MSc students. – Undergrads: Buy them from the stores. • Assignment: to be handed two weeks before Xmas‚ deadline-28 Jan 2013 • Students
Premium Dew point Psychrometrics Atmospheric thermodynamics
why atmospheric pressure always decreases with increasing altitude. Because the higher you get the more room there is between molecules‚ which means less weight from above. Basically the air gets thinner the higher you get‚ so there is less pressure. 2. Why is the decrease of air pressure with increasing altitude more rapid when the air is cold? Cold air is associated with low pressure. So the inherently low-pressure air loses pressure more rapidly as the altitude increases. Air pressure drops
Premium Climate Equator Wind
APUS SCIN137 Final Exam Part 1 of 1 - 100.0 Points Question 1 of 25 4.0 Points Suppose Hurricane Bruno reached land with a sustained wind speed of 150 miles per hour. What category would the National Weather Service assign to this storm? A.Category Two B.Category Three C.Category Four D.Category Five Answer Key: C Question 2 of 25 4.0 Points What is the relative humidity when the air temperature is 75 degrees Fahrenheit and the Wet Bulb temperature is 65 degrees
Premium Temperature Atmospheric thermodynamics Celsius
ideal gas model has many applications in engineering practice and is frequently used in subsequent section of this text. Ideal gas Equation state From the Generalized compressibility chart show that the state where the pressure p is small relative critical pressure Pc (low PR)‚ and the temperature T is large relative to the critical temperature Tc (high Tc ). The compressibility factor Z =Pv/RT ‚ is approximately. At such state we can assume with reasonable accuracy that Z=1‚ or: Pv
Premium Thermodynamics Gas Ideal gas law
THERMODYNAMICS ENR TECH 3TD3 COMPRESSOR TYPES AND APPLICATIONS PROJECT INSTRUCTOR: DR. REYAD AL-TAIE DATE: JUNE 26‚ 2013 Contents ------------------------------------------------------------------------ I. Introduction………………………………………......3 II. Thermodynamics Properties………...….……………5 III. Thermodynamic Laws……………………………….6 IV. Compression Cycles…………………………………7
Premium Thermodynamics Gas Gas compressor
earth’s surface oceans and life in general. Atmosphere The envelope of gases that surround a planet and are held to it by the planet’s gravitational attraction. The earth’s atmosphere is mainly Nitrogen and oxygen. Layers of the atmosphere: Air pressure and density decrease with height above the earth‚ rapidly at first‚ then more slowly. Air temperature has however‚ more complicated vertical profile. Air temperature
Premium Water vapor Energy Temperature
`A 20cm diameter pipe of length 100m with z = 60m with f = 0.02 and loss of head due to entrance coefficient k = 0.5. What is the flow rate? Solution: Find the width in m of the channel at the back of a suppressed weir using the following data: H = 28.5cm; d = 2.485m; Q = 0.84 cu.m/sec. Consider the velocity of approach and use the Francis formula. Solution: Water flows in a 2m. wide rectangular flume at the rate of 2.75 cu.m./sec
Free Pressure Soil mechanics Water
......... 5 IV. Procedure.............................................................................................................................. 6 Velocity Traverse and Differential Pressure Measurement..................................................... 6 Recoverable and Non-Recoverable Pressure Drop Measurement........................................... 8 V. Required Data Analysis ......................................................................................................
Premium Fluid dynamics Pressure
Air Conditioning Psychrometrics Course No: M05-005 Credit: 5 PDH A. Bhatia Continuing Education and Development‚ Inc. 9 Greyridge Farm Court Stony Point‚ NY 10980 P: (877) 322-5800 F: (877) 322-4774 info@cedengineering.com AIRCONDITIONING PSYCHROMETRICS AIR CONDITIONING PSYCHROMETRICS In air-conditioning system‚ the air must undergo one or several of the following processes: Psychrometrics can be used to predict changes in the environment when the amount of heat and/or
Premium Atmospheric thermodynamics Dew point Relative humidity
material‚ except as permitted by the Copyright Act or other law. ERB‚September 2001 Experiment or Topic Pages Preface 1 2 3 4 5 6 7 8 9 10 11 ii iii Calorimeter Capillary Tube Dynamometer Expansion Valve‚ Automatic‚ Pressure Regulation Expansion Valve‚ Automatic‚ Temperature Regulation Gasoline Engine‚ Transparent‚ Four Stroke Heat Exchanger‚ Double Pipe Heat Pump Polytropic Process (air compressor) Rankine Cycle Vapor-Compression Cycle (Refrigeration Cycle)
Premium Thermodynamics Chemical engineering Heat pump