HEAT AND VAPOUR TRANSFER HOMEWORK Material Thickness(m) Heat Conductivity Coefficient (2) Vapour Diffusivity Coefficient (u) The inner 0.02 plaster Aerated 0.3 Concrete The 0.03 rendering 0.87 0.17 15 8 1.40 25 ti 25°C, td -8°C ai: 8 W/m² °C, ad: 25 W/m² °C V: % 50, v: % 60 Calculate the heat transfer coefficient (k) and the heat transfer resistance (1/A). Calculate the amount of the heat flow passing through 1 m² wall and draw the heat transfer curve. Calculate the vapour pressures through the layers of the wall and control the condensation by drawing the water vapour transfer graphic.

6.TAPE MEASUREMENTS a. When the temperature was 48°C, the measured distance from A to B was 450.0m. Thetape used has a standard length at 20°C with a coefficient of thermal expansion of0.0000116°C. Find the correct distance of AB.b. When the temperature was 48°C, the measure distance from A to B was 500.0m. Thesteel tape used has a standard length at 20°C with a coefficient of thermal expansion of0.0000116°C. Find the correct distance of AB.

The measured distance between the two poles is 318 m. The tape used was standardized at 20 degrees C, and it has a coefficient of thermal expansion of 0.0000116/degree C. If the adjusted/corrected distance between the two poles is 318.103 m, calculate the temperature during the actual activity. a. 46.54 C O b. none of the other choices C. 52.10 C O d. 47.92 C

Subject. موشوع ال،رس . Date : Calculationand schedulk of results The amount of Penetralion(mm) Time; min! 4omm tomm 4 minte 19 min- 34 mint. Draw a Curve between he fime period And the amonntof Penetiation and aviange the resulls for the greups as the filbing Final Freezing Hme cor hour) The initial freeting lime mint)

Airat1500kPaabsoluteflowsin25mm-diamtertube.Whatisthe maximum laminar flow rate. Use density of air=14.04kg/cu.m and ?=0.0000217Pa-s

I need a literature review about the Enhancing indoor air quality and safe entertainment in sports halls}......... (introduction about 6 lines) (determination abou 5-6 line) (and 10 reference with link of the reference) pls quick..

8:18 PM 3lll A(23] SITUATION 2: A 30 m tape measured a 412 m distance at a temperature of 520C. The tape is of a standard length at a temperature of 250C. PROBLEM 17: If the coefficient of thermal expansion is 11.6x10-6 m/oC, find the correction per standard length of the tape. a. 0.009396m too long b. 0.009396 m too short c. 0.1290384 m too long d. 0.1290384 m too short PROBLEM 18: REVIE What is the total correction on the measured distance? a. 0.009396m too long b. 0.009396 m too short c. 0.1290384 m too long d. 0.1290384 m too short ILLA RE PROBLEM 19: What is the corrected length on the measured distance? a. 412.009 m b. 411.991 m C. 412.129 m d. 411.871 m

a A jet ef weter Frawm a 25 mm diameter nozzle is directed vertically upwards. Assuming that the jet remalns circular and neglecting any less of energ that will be the diameterata point 4.5m above the nozzle,ifthe velecity with which the jest leaves the nozzle is 12 /s? A jet af water 4.5m nozzle Raghad Sam

شعبة ؟ * التاريخ الموضوع Home work Determine L that make BM at the center of 30KN/m 30KN/m 50KN 4 2m- min *2m 16 h 9 V W V

IX. PROBLEM SET NO.1 1. A closed tank contains 0.610m of mercury (sp.gr.=13.6), 1.524m of water,2.438m of oil (sp.gr.=0.75) and an air space of 1.0m above the oil. If the pressure at the bottom of the tank is 276kPa, what should be the reading of the gage in the top of the tank ?