Supply air at 18°C dry-bulb and RH of 80% flows through a duct whose inside wall temperature is about 11°C. Will water droplets form inside the duct? Return air at 25°C and fresh outdoor air at 35°C is mixed in an adiabatic mixing chamber. If 22% of the mixed air is from outdoor air, what is the temperature of the mixed air in °C?

Supply air at 18°C dry-bulb and RH of 80% flows through a duct whose inside wall temperature is about 11°C. Will water droplets form inside the duct? Return air at 25°C and fresh outdoor air at 35°C is mixed in an adiabatic mixing chamber. If 22% of the mixed air is from outdoor air, what is the temperature of the mixed air in °C?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

2. Two hundred and fifty pounds of a mixture of 10 mol% propane 20% n-butane, and 70% n-pentane is completely vaporized in a pipe still in one hour. At the outlet, the temperature anc 433 F and 600 psia. What is the volumetric flow pressure are rate in cfm at the outlet conditions? Answer: The physical properties of the gas are: Tc Pc MW Propane 369.9 K 665.8 R 42.0 atm 44 Butane 425.17 K 765.31 R 37.47 atm 58 Pentane 469.8 K 845.64 R 33.3 atm 72
A Copper ball at 40'Cis dropped in a mug containing water at 40°C. The heat will Select one: O a.not flow from Copper ball to water or from water to Copper ball O b. flow from Copper ball to water O c. Increase the temiperature of both O d. flow from water to Copper ball
Air at a dry ball temperature of 9m5 ° and rh 4% is passed over the cooling coil so that the temperature of the dry ball of air becomes 50 ° C. How much heat is released from the air in the process
Pls. Answer thank you! The moisture removed from a material is 200 lb/hr and change of humidity ratio in dryer is 0.015. Determine the fan capacity if specific volume of air entering is 38 ft3/lb.
What is the temperature entering the cooling sectionwhen 25 kW of heat are removed and the air exits at 15 deg C, a relative humidity of 30% and a volumetric flowrate of 0.7 m^3/s?
Quest Air (at atmospheric pressure) at a day bulb temp. an of 40°c and wet bulb temp. of 20°℃ is humidified in air washer operating with continuous water recirculation. The wet bulb depression the exif is 25% of that at theindet The day bulb temperature at the exit of the air washer is ? at
and exits at 50°C. The value of the Log Mean outside of a tube. Cold enters the tube at 20°C Saturated steam at 100°C condenses on the °C. Temperature Difference (LMTD) is
mo A humidifier in an air heating duct handles 3000 CFM, and increases the moisture content of the air from 30 to 60 g/lb a.s. Calculate the amount of heat needed for the humidifier, if the air is at 80°F.
An ammonia compressor has a volumetric effienciy og 85%, operating condensing & evaporating temperatures of 40 C & 10 C respectively for a cooling capacity of 10 tons with compression index of 1.2, mean piston speed of 2m/s, 5% clearance & bore to stroke ratio of 0.7. Determine the ff: 1.Draw the PH diagram indicating the temperatures, enthalpies, and initial specific volume 2. Refrigerating effect in kj/kg 3. mass flow rate in kg/s 4. work of compressor in kj/kg
An ammonia compressor has a volumetric effienciy og 85%, operating condensing & evaporating temperatures of 40 C & 10 C respectively for a cooling capacity of 10 tons with compression index of 1.2, mean piston speed of 2m/s, 5% clearance & bore to stroke ratio of 0.7. Determine the ff: 1. Draw the PH diagram indicating the temperatures, enthalpies, and initial specific volume 2. Refrigerating effect in kj/kg 3. mass flow rate in kg/s 4. work of compressor in kj/kg 5. power of compressor in kj/kg 6. cooling coefficient of performance 7. piston displacement in cu. meters/min 8. bore in mm 9. stroke in m 10. motor rpm
Q1/ Calculate the cooling load of moist air from dry-bulb temperature 22 Cº and wet- bulb temperature 16 C° to dry bulb 17 C°. Assume air flow rate is 1.5 m³/s.
Moist air at 21 C° DBT and 15 C° WBT and standard atmospheric pressure is humid by water spray. If for each one kg of dry air passing through the duct 0.002 kg of wa 100 C° is injected and totally evaporated. Draw the psychometric and schematic figu process and calculate for the air leaving the a- The moisture content. spray chamber: b- The enthalpy c- Dry bulb temperature.