Sample Paychrometrie Chart (Use the Chart from the Weather ToolKit 6.0 WET BULB (WB) TEMPERATURE 5.5 35 5.0 30 4.5 300 4.0 25 HUMI 3.5 20 3.0 2.5 15 20 68% 2.0 50% 1.5 10 (kPa) 100 1.0 0.5 10% 0.0 -10-5 0 5 10 15 20 25 30 35 40 DRY BULB TEMPERATURE (Celsius) At a temperature of 25 °C what is the mixing ratio if the relative humidity is E Work from the printed chart from the Tools folder O a) 12.5 g/kg Ob) 16.5 g/kg O) 18.5 g/kg O d) 20 g/kg O e) 22.5 g/kg
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- Using the information in Problem 1.22, estimate the ambient air temperature that could cause frostbite on a calm day on the ski slopes. 1.22 In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas gives both an air temperature and the wind-chill temperature. The air temperature is measured with a thermometer that is not affected by the wind. However, the rate of heat loss from the skier increases with wind velocity, and the wind-chill temperature is the temperature that would result in the same rate of heat loss in still air as occurs at the measured air temperature with the existing wind. Suppose that the inner temperature of a 3-mm-thick layer of skin with a thermal conductivity of 0.35W/mKis35C and the air temperature is 20C. Under calm ambient conditions the heat transfer coefficient at the outer skin surface is about 20W/m2K (see Table 1.4), but in a 40-mph wind it increases to 75W/m2K. If frostbite occurs when the skin temperature drops to about 10C, do you advise the skier to wear a face mask? What is the skin temperature drop due to the wind?At a pressure of 0.01 atm, determine (a) the melting temperature for ice, and (b) the boiling temperature for water. You might want to use Animated Figure. (a) i °C (b) і °CFor a cooling tower the water enters at 50 C and leaves cooling tower at 40 Č. The drybulb temperature and wet bulb temperature of entering air is 40 C and 30 C respectively. Then the range of cooling tower and approach of cooling tower are O a. 20 and 10 O b. 20 and 20 O c. 10 and 10 O d. 10 and 20 Next page Jump to.. QUIZ 1- TOSHIBA INS SCROLL LOCK HOME SYSRO F8 F9 F10 F11 F12 DEL BACK
- Go Tools Window Help A Screen Shot 2021-10-30 at 6.12.39 AM Edited Q Sea A- Exercise Consider the following readings in a reactor: table of data representing temperature Thermocouple 1 Thermocouple 2 Thermocouple 3 84.3 86.4 90.0 85.2 87.1 83.5 89.5 88.6 88.9 88.9 86.7 87.6 88.3 85.3 80.3 84.8 90.4 82.4 85.0 85.3 85.3 85 2 82.3 84.7 83.6 89.3 83.4 85.4 89.5 88.9 89.1 86.3 85.3 89.0 87.3 87.2 89.5 89.4 89.8 (a) The maximum temperature measured by each thermocouple. (b) The minimum temperature measured by each thermocouple. oct 30 CtvA quartz mixture is screened through a standard 14 mesh screen. The mass of feed, oversize and undersize are given below in the table. MeshDiameter Mass (kg) No. (mm) FeedoversizeUndersize 3.3 5 8 2.4 24 10 1.7 38 49 19 14 1.2 25 15 36 20 0.8 15 25 28 0.6 3 1 35 0.4 3 6. 65 0.2 Pan 3 Calculate screen effectiveness.Q1. Honey is a very widely used ingredient in cooking all around the world. Many commercial honey manufacturers heat treat honey to remove harmful bacteria that may be present. The density and viscosity of the honey varies with temperature, as shown in table 1. Temperature K 293 298 303 308 313 318 323 Density kg/m³ 1403 1398 1393 1388 1383 1378 1373 Viscosity Pas 55.66 46.45 37.99 30.28 23.32 17.11 11.65 Table 1: Fluid properties of honey. A particular processing facility heats and sterilises 500 kg of unprocessed honey every 30 minutes. The unpro- cessed honey is stored in large vats, then pumped though pipes into heating units before being pumped through another pipe to be bottled. The pipe carrying the honey from a storage container, which is 11 m tall, to a heating unit is 5 m long and has a diameter of 10 cm. Prior to being heated the honey is kept at 25°C. (a) What is the pressure difference between the top and bottom of a storage vat when it is full? (b) What is the volume flow…
- Task 3-a: If you have four instruments used to measure a temperature of 50.02 C inside the factory. However, the instruments gave different readings for different trials as follows: Instrument 1 20 30 40 50 60 70 80 51 49 Instrument 2 49 49 49 49 49 49 49 49 49 Instrument 3 48.01 48.03 49.02 49.01 50.00 48.02 47.09 47.05 47.80 Instrument 4 17.01 17.02 17.09 17.03 17.01 17.03 15.09 19.02 17.00 1. Define the resolution of an instrument. 2. Define the sensitivity of an instrument, then explain how the sensitivity of an instrument can be calculated. 3. Define the accuracy of an instrument system and explain using your own words how the accuracies of different instruments are compared. 4. Define the precision of an instrument system and explain using your own words how the precisions for different instruments are compared.X bc.blackboard.com/ultra/courses/_257886_1/cl/outline 20 + Quantity Dry bulb temperature Moisture content Relative humidity Wet bulb temperature Dew-point temperature 3 Specific enthalpy Specific volume E 80 $ 4 R F Symbol TDB 5 W 4 TWB TDP h V T G 6 Set A 27.2 10.5 48% 19 14.7 54 Set B Y 36.8 7.9 & 7 20 56.5 0.865 0.885 20 10.3 F7 U tv Set C 10.7 25 18.5 55 * 52.2 00 15 0.86 8 DII Set D 26.8 9.4 42 18 13 50.5 0.89 ( 9 K F9 CA Units ) °C g/kgda O % kJ/kgda m³/kgda °C °C F10 P E23 Q5. Whate is thc exact reading for the following in mm -10 1. Reading= TTTTE 4.30 012343 -20 10 2.75 2. Reading= TTE 012 20 20 -15 3. Reading=. -10 MITT 5 0123E 3.85 USF
- + P 4. 5. 1/4 R %24 2. Bb Basic BIM/REVIT Drafting (CAD) X Bb Unit 03 - Reading Measuring loo X uaptc.edu/bbcswebdav/pid-4073050-dt-content-rid-22008907_1/courses/DFT.1005.A10.2021.S0/pdf_activities_03-03.pdf pdf 1 / 2 - Activity 3-3 A | + %00L E区 Reading a Scale Name Tanner Francis Identify the portion of a foot (12") as indicated by the reading from the zero mark (0) on the scales below. Place your answers in the spaces provided. 1. 78 88 92 4. 2. 6. 3. 9 6 1 3. 8. O. 14 13 ju 3 here to search 直 0 85°F F2 F4 F5 F7 %23 F8 prt sc 2 home F10 pua F12 F11 insert 3. 4. 0. 6. 6. K H.3. The following table shows the daily temperature measurements and numberof defects for the Temperature Day Number of Defects 1 24.2 25 2 22.7 31 3 30.5 36 4 28.6 33 5 25.5 19 32.0 24 7 28.6 27 8 26.5 25 9. 25.3 16 10 26.0 14 11 24.4 22 12 24.8 23 13 20.6 20 14 25.1 25 15-day observation. 15 21.4 25 Compute for the following: a. Mean b. Median C. Variance d. Standard deviation е. Mean deviationFrom your mobile, get todays' temperature, relative humidity, wind speed, etc. If you do not have a mobile assume reasonable values and find the vapor pressure, the saturation deficit, and the dew point