5000 cfm of outdoor air at 100°F/75°F is cooled to 85°F in a direct evaporative cooler. Air then enters a cooling coil and leaves at 60°F and 92% RH. Use the actual data analysis. Do not use the standard conditions analysis nor the protractor on the psychrometric chart. a) Draw the processes on the attached psychrometric chart b) Calculate the mass flow rate of dry air, Ib/hr c) Calculate the rate of condensate, Ib/h d) Compute the sensible cooling, the latent cooling and the total cooling of the cooling coil, Btu/h e) Specify the SHR, the apparatus dew point and the bypass factor of the cooling coil.

5000 cfm of outdoor air at 100°F/75°F is cooled to 85°F in a direct evaporative cooler. Air then enters a cooling coil and leaves at 60°F and 92% RH. Use the actual data analysis. Do not use the standard conditions analysis nor the protractor on the psychrometric chart. a) Draw the processes on the attached psychrometric chart b) Calculate the mass flow rate of dry air, Ib/hr c) Calculate the rate of condensate, Ib/h d) Compute the sensible cooling, the latent cooling and the total cooling of the cooling coil, Btu/h e) Specify the SHR, the apparatus dew point and the bypass factor of the cooling coil.

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

Read the question carefully before answering. Box or indicate your final ansurers when solving and draw your diagrams cleanly. Complete solution please. Use 2 decimal places when solving and for final answers. Draw the PV and TS diagram with proper label of points when required. 1. An Otto Cycle receives air at 101 kPa and 20c, then compresses it to 10% of the original volume. The max temperature of the air is 1050 K. Draw the PV and TS diagrams, and selve for the following: the remaining temperatures, QA, QR. Whet and efficiency.
Steam enters the turbine of a vapor power plant at 600 lbf/in.², 1000°F and exits as a two-phase liquid-vapor mixture at 90°F. Condensate exits the condenser at 85°F and is pumped to 600 lbf/in.² The turbine and pump isentropic efficiencies are 90 and 80%, respectively. The net power developed is 1 MW. Determine: (a) the percent steam quality at the turbine exit. (b) the percent thermal efficiency. (c) the steam mass flow rate, in lb/h. Part A * Your answer is incorrect. Determine the percent steam quality at the turbine exit. x₂ = i 78.67 %
A supply line carries a two-phase liquid–vapour mixture of steam at 450 psi. A small fraction of the flow in the line is diverted through a throttling calorimeter and exhausted to the atmosphere at 20 psi. The temperature of the exhaust steam is measured as 350°F. Determine the quality of the steam in the supply line. Select one: a. 95.7% b. 98% c. 92% d. 100%
air at a dry ball temperature of 75 ° C and 5% RH is passed over the cooling coil so that the air dry ball temperature becomes 30 ° C. how much heat is released from the air in the process? = ....... (kj / kg)
Steam enters the turbine of a vapor power plant at 600 lbf/in.2, 1000°F and exits as a two-phase liquid-vapor mixture at 100°F. Condensate exits the condenser at 95°F and is pumped to 600 lbf/in.2 The turbine and pump isentropic efficiencies are 90 and 80%, respectively. The net power developed is 1 MW. Determine: (a) the percent steam quality at the turbine exit. (b) the percent thermal efficiency. (c) the steam mass flow rate, in lb/h.
Q2/ In AC system, 540 L/s of the outdoor air at 32C db, 23C wb mixes with 2850 L/s of the return air at 24C db, 50% RH. The mixture cools through the cooling load and leave it at 90% RH. If the room SHF is 70%. Calculate: 1. Conditions of the air leaving the coil. 2. Cooling coil capacity. 3. Sensible load, latent load and total load of the room.
าา 3.15.) In air conditioning unit, 71,000 cfm at 80'F dry bulb 60% th and standard atmospheric pressure, enter the unit. The air leaves the wait at 57°F dry bulb and 90% relative humidity. Calculate the following a.) Cooling capacity of the air conditioning unit, in Btu/h 6.) rate of water removal from the unit. (.) sensible heat load on the conditioner, in Btu/h di) latent heat load on the conditioning in Blu/h e.) The dew point of the air leaving the conditioner.
Steam enters the turbine of a vapor power plant at 600 lbf/in.², 1000°F and exits as a two-phase liquid-vapor mixture at 90°F. Condensate exits the condenser at 85°F and is pumped to 600 lbf/in.² The turbine and pump isentropic efficiencies are 90 and 80%, respectively. The net power developed is 1 MW. Determine: (a) the percent steam quality at the turbine exit. (b) the percent thermal efficiency. (c) the steam mass flow rate, in lb/h.
Saturated air at 40°F (4.4°C) is first preheated and then saturated adiabatically. This saturated air is then heated to a final condition of 105°F (40.6°C) and 28% rh. To what tem- perature must the air initially be heated in the preheat coil? [Ans: 101°F (37.8°C)] please solve without psychometric chart
4.3 Outside air (100°F/75°F) flowing at 1000 cfm is mixed with return air (75°F/63°F) at 5000 cfm. Find the mixed air conditions (db, RH, wb, v, and h). Sketch on the psychrometric chart.
! Required information Problem 07.025 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Refrigerant-134a enters the coils of the evaporator of a refrigeration system as a saturated liquid-vapor mixture at a pressure of 140 kPa. The refrigerant absorbs 200 kJ of heat from the cooled space, which is maintained at -10°C, and leaves as saturated vapor at the same pressure. Problem 07.025.a - Entropy change of the refrigerant in an evaporating process Determine the entropy change of the refrigerant. Use the tables for R-134a. (You must provide an answer before moving on to the next part.) The entropy change of the refrigerant is KJ/K.
As shown in the figure, air with a volumetric flow rate of 14,000 ft/min enters an air-handling unit at 80°F, 1 atm. The air-handling unit delivers air at 45°F, 1 atm to a duct system with three branches consisting of two 26-in-diameter ducts and one 50-in. duct. The velocity in each 26-in. duct is 10 ft/s. Assume steady state operation and ideal gas behavior for the air. D- 50 in. Duct system T- - 1 - 45°F D, - D,- 26 in. Vz = V3 Air-handling unit 1+ A = P=P = P4=1 atm T= B0°F (AV) Determine the mass flow rate of air entering the air-handling unit, in Ib/s, the volumetric flow rate in each 26-in. duct, in ft/min, and the velocity in the 50-in. duct, in ft/s.