ชื่อ-สกุล....ชุดที่ 62. ผิวด้านนอกของผนังเป็นคอนกรีตหนา 0.2m. มีอุณหภูมิ -5°C ส่วนผิวด้านในมีอุณหภูมิ 20°C คอนกรีตมีค่าการนำความร้อน (k) เท่ากับ 1.2W/m•K และผนังที่มีขนาดยาว 10m. สูง 3.จงคํานวณการสูญเสียความร้อนของผนังนี้–5°Cรหัส.0.2 m-Concrete9=?20Cรูปที่ 2

Answered: Image /qna-images/answer/9fc5b05c-dee0-4523-b6f2-8cd8d18c9aeb.jpg

ชื่อ-สกุล.. รหัส. ชุดที่ 6 2. ผิวด้านนอกของผนังเป็นคอนกรีตหนา 0.2m. มีอุณหภูมิ -5°C ส่วนผิวด้านในมีอุณหภูมิ 20°C คอนครีตมีค่าการ นำความร้อน (k) เท่ากับ 1.2W/mK และผนังที่มีขนาดยาว 10m. สูง 3m. จงคำนวณการสูญเสียความร้อนของผนังนี้ -5°C |≈–0.2 m- Concrete 9=? 20°C รูปที่ 2

ชื่อ-สกุล.. รหัส. ชุดที่ 6 2. ผิวด้านนอกของผนังเป็นคอนกรีตหนา 0.2m. มีอุณหภูมิ -5°C ส่วนผิวด้านในมีอุณหภูมิ 20°C คอนครีตมีค่าการ นำความร้อน (k) เท่ากับ 1.2W/mK และผนังที่มีขนาดยาว 10m. สูง 3m. จงคำนวณการสูญเสียความร้อนของผนังนี้ -5°C |≈–0.2 m- Concrete 9=? 20°C รูปที่ 2

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter1: Heat, Temperature, And Pressure

Section: Chapter Questions

Problem 17RQ: Convert 22C to Fahrenheit.

See similar textbooks

Similar questions

58.27 cm Determine the shear stress acting on the fluid element for a velocity profile of 5*y+1 and viscosity of 0.25 kg/(m*sec) by using Newton's law of viscosity? 5 Pa 0.25 Pa none 2.25 Pa 1.25 Pa 1 bar pressure difference is equal to .. water manometer height. Take water specific gravity as 1 O O O
6) A tower used in a wind turbine system had a stiffness of 790N/m after displacing 10cm. Find the weight(in gram) that was connected to this tower. Assume g.- 10.174 m s2
Mb= 9knm
6,000 ft of 7-in C-75 grade of casing string will be run in a borehole having a diameter of 8.5-m. The casing has a unit weight of 38 lbm/ft and a wall thickness of 0.540-in. Mud weight used to run the casing into the borehole is 10 lbm/gal (ppg). a) Calculate the weight of casing string in the air. b) Calculate the hook load when the casing is in the borehole. c) Calculate the borehole capacity in terms of bbl/ft. d) Calculate the borehole capacity in terms of bbl. e) Calculate the displacement of the casing in terms of bbl/ft. ) Calculate the displacement of the casing in terms of bbl, g) Calculate the volume of cement slurry to fill the annulus in terms of bbl and cuft assuming a excess volume factor of 1.5) h) Calculate the maximum length of the casing if the rig used for this operation can handle 250,000 Ibf of hook load. i) The casing gets stuck at bottom of the borehole while running the string. Calculate the maximum pulling force that the driller can apply at the surface to get…
7. The initial effective stresses on a saturated soil element at a certain depth in a soil mass are o', = 40 kPa, oʻ2 = 20 kPa, and o'z = 20 kPa. The groundwater level is well below the soil element. The changes in stresses on the soil element are shown in Fig. 5. 100 kPa 20 КPа 50 kPa O kPa О КРа 20 kPa Fig.5 a) Calculate the change in principal stresses; b) Plot the total stress path in (p, q) space.
FLUID MECH Support your answer with the appropriate solution and diagram. 3. A rectangular raft made of solid timbers (s=0.60) is 3 m wide and 6 m long x 60 cm thick. A man weighing 800 N steps on the edge of the at the middle of one of the longitudinal sides. Determine by how much the thickness of the raft will be depressed below the water surface along the side in mm. A. 10 B. 20 C. 30 D. 40
Y = 9810 N m FH METHOD 1: Plane Surfaces METHOD 2: Curved Surfaces Fv TAKE NOTE: Use the 2 methods to solve the problem. COMPARE/DIFFERENTIATE THE TWO METHODS. Plane Surfaces F=? 45° gate width=1m 1m Curved Surfaces Directions: Guide Question/s: 1.) Using the procedure employed in calculating FH, F, and F in a curved surfaces, will it be applicable also in calculating the hydrostatic force F in an inclined rectangular gate?
c) Sketch the shear force diagram d) Sketch the bending moment diagram
Q2-2 [5 Points]:A fluid has an absolute viscosity of 0.048 Pa-s and a specific gravity of 0.913. For flow of such a fluid over a solid flat surface, the velocity at a point 50 mm away from the surface is 1.18 m/s. Calculate the shear stresses at the solid boundary (N/m) 1.16 1.13 O 0.2 O 1.18 O 2.06 2.31 2.1 1.5
The cable supports a railway bridge between two tunnels. Given: Distributed load, w = 1.01 MN/m Allowable cable tension, Talllow = 47.2 MN. Distance, a = 21 m a a What is the corresponding value of "h" in meters? Express your answer in 1 decimal place. 3
The area information is given as following. A,=338.6mm A=233.5mm A=255.2mm A=338.6mm A-170.2mm A,=84.6mm 211 8 If the following measured information is given, Location units 1 4 5 Manometer (Total) Height mm 155 150 140 135 129 124 Manometer mm 150 140 125 120 120 120 Height (Static) Area mm2 338.6 233.5 84.6 170.2 255.2 338.6 Volume ml 431 431 431 431 431 431 time 10.580 10.580 10.580 10.580 10.580 10.580 Water Density kg/m3 1000 1000 1000 1000 1000 1000 Water Viscosity kg/m-s 1.052E-03 1.052E-03 1.052E-03 1.052E-03 1.052E-03 1.052E-03 gravitational Acceleration m/s? 9.81 9.81 9.81 9.81 9.81 9.81 Find the dynamic pressure (Pa) at location 3 using the manometers' heights.
The pressure of fluid of specific gravity 0.8 flowing in a horizontal pipeline is determined with a simple U-tube manometer. The level of mercury surface in the right limb open to atmosphere is 90 mm above the centre of pipe. The level of mercury in the left limb, which is connected to pipe is 65 mm below centre of pipe. Determine absolute pressure of fluid in pipe in N/m²