1. An air-conditioned space is maintained at 25 °C and 50% relative humidity. The outside conditions are 40 °C DBT and 25 °C WBT. The space has a sensible heat gain of 24.5 kW. The conditioned air is supplied to the space as saturated air at 10 °C. The equipment consists of an air washer such that the air entering to it comprises 25% outside air and the remainder being recirculated room air. Calculate: - A. The volume flow rate supplied to the space. B. The latent heat gain to the space. C. The cooling load of the air washer.

1. An air-conditioned space is maintained at 25 °C and 50% relative humidity. The outside conditions are 40 °C DBT and 25 °C WBT. The space has a sensible heat gain of 24.5 kW. The conditioned air is supplied to the space as saturated air at 10 °C. The equipment consists of an air washer such that the air entering to it comprises 25% outside air and the remainder being recirculated room air. Calculate: - A. The volume flow rate supplied to the space. B. The latent heat gain to the space. C. The cooling load of the air washer.

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

During humidification process at 31 oC-17 DBT. The minimum wet bulb temperature is اختر احد الخيارات a. O oC b. 12 oC с. 10 оС d. 31 oC
Solve it using the chat and show how you get the answers from the chat
Solve all please i give thumb up? Outside air at 15°C and 20% relative humidity is admitted at a volumetric rate of 15m³/min into an air conditioning system composed of a simple heating section followed by a humidification section, which must supply air at 27 °C and 65% relative humidity. The airflow temperature between the heating and humidifying sections is 22°C and the entire air conditioner operates at 70kPa. Determine, using calculations: (a) the rate of heat supply to the heating section, in kW, is ______. (b) the wet bulb temperature of the air after the heating section, in °C, is ______. (c) the mass flow rate of steam in the humidification section, in g/s, is ______. (d) the temperature of the steam injected into the humidification section for a steam pressure of 200kPa, in °C, is _______
Q1: Moist air at 40°CDBT, 20°CWBT, and standard atmospheric pressure is humidified adiabatically to 25 CDBT and 70% RH. Find the amount of moisture and heat added per Kg of air. (answer without using of psychrometric chart). Q2: A room is to be maintained at 22°C db and 50%RH has total heat loss of 7.5 kW of which 80% is sensible heat, when outdoor at 5 °C and 80% RH. If the design difference between supply and room air temperature is 10°C DBT and 50% fresh air, find the capacities of heating coil, and humidifier used a tap water at 10 "C. Q3: A room is maintained at 22°C and 50%RH has a wall consist of common brick finished internally with gypsum plaster and externally with 15mm cement plaster. The outside conditions are 2°C, 75% RH. Find the thickness of common brick required for preventing moisture condenses on the wall.
Given that Initial Temperature = 28.5 deg C, Dew Point = 9 deg C, Dry Bulb = 30 deg C, Wet Bulb = 28 deg C, Saturation Pressure = 1.148 kPa Calculate the following: Humidity Ratio w = 0.622PsPt-Ps=0.622PsPa kg water/kg air Partial pressure of water vapour where: Ps = partial pressure of water vapour (Psat at dewpoint temperature ) w = humidity ratio Pt = total pressure (standard atmospheric pressure) Pt = Pa + Ps Pa = partial pressure of dry air = Pt - Ps 3. Relative Humidity RH = PsPd 4. v = RaTPa m3/kg 5. ω = 1vkg/m3 where: Pd = saturation pressure at room temperature (from steam table) ω = density of air v = specific volume of dry air T = absolute temperature of room temperature Ra = gas constant of air =0.28706 kJ/kg-K
Please explain how did it become 8 percent explain the calculation
Gas-Vapor Mixtures (Properties of atmospheric air) 20. Find the humidity ratio of an air that has tdb = 27 °C and twb = 20 °C with arelative humidity of 55%. (Use PB = 100 KPa)a. 0.0124 lbv/lbab. 0.24 lbv/lbac. 0.133 Kgv/Kgad. 0.0133 Kgv/Kga
need ans very very fast in 20 min
Q.7
Calculate the specific humidity if the relative humidity is50% and the capacity of the air (saturation specifichumidity) is 30g/kg. answer choices can be: 15 g/kg0.15 g/kg0.60 g/kg60 g/kg