4. A small auditorium is required to be maintained at 22 C dry bulb temperature and 70 % relative humidity. The ambient conditions are at 30 C dry bulb temperature and 75 % relative humidity. The amount of free air circulated is 200 m3/min. The required conditions are achieved by first cooling and dehumidifying through a cooling coil having apparatus dew point of 14 C and then by heating. With the help of psychrometric chart find. a) The capacity of the cooling coil intones of refrigeration and its by-pass factor. b) The amount of water vapour removed by the cooling coil in kg/h. c) The capacity of the heating coil in kW and its surface temperature. Assume by-pass factor as 0.2

4. A small auditorium is required to be maintained at 22 C dry bulb temperature and 70 % relative humidity. The ambient conditions are at 30 C dry bulb temperature and 75 % relative humidity. The amount of free air circulated is 200 m3/min. The required conditions are achieved by first cooling and dehumidifying through a cooling coil having apparatus dew point of 14 C and then by heating. With the help of psychrometric chart find. a) The capacity of the cooling coil intones of refrigeration and its by-pass factor. b) The amount of water vapour removed by the cooling coil in kg/h. c) The capacity of the heating coil in kW and its surface temperature. Assume by-pass factor as 0.2

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

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 1RQ: The standard design conditions for air-conditioning systems established by the Air-Conditioning,...

See similar textbooks

Similar questions

The standard design conditions for air-conditioning systems established by the Air-Conditioning, Heating and Refrigeration Institute (AHRI) are outside temperature _____F, inside temperature ______F, with a humidityof____%.
.
How high a relative humidity must a 35°C air have in order to obtain saturated airat 18°C by evaporative cooling? solve with complete diagram
In air with a dry bulb temperature of 23 C and relative humidity of 20%; Find dew point temperature, enthalpy, wet bulb temperature and specific humidity
Q.7
In an auditorium a temperature should not exceed 23 deg C and 55% relative humidity, total occupancy is 150 people with 17 air change per person and a sensible heat of 132 kW. Air is to be supplied at the auditorium at 18 dec C. How many cfm of air must be supplied?
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.
How high a relative humidity must be for a 35°C air in order to obtain a saturated air at 18°C by sensible cooling? How much heat is involved? Assume barometric pressure to standard.
i need the answer quickly
An air vapor mixture has a DB temperature of 30 degrees Celsius and a humidity ratio of 0.015kg/kg d.a. calculate for two barometric pressures 85 kPaa and 101.325 kPaa:a) The enthalpyb) The dew point temperature
Pls. Answer..thank you! An air-conditioning system operates at a total pressure of 1 atm and consists of a heating section and an evaporative cooler. Air enters the heating section at 15OC and 55 percent relative humidity at a rate of 30 m3 /min, and it leaves the evaporative cooler at 25OC and 45 percent relatively humidity. Determine the TOR.
An air conditioning system operates at a pressure of 1 atm. Heating section and 105 in the system There is an air-conditioning section that provides saturated water vapor at oC. air heating section of 25 m3 at 15 oC and 60 percent relative humidity / min with volumetric flow enters and leaves the humidification section at 25 oC and 50 percent relative humidity. a) When leaving the heater section temperature and relative humidity of the air find out b) The heat transfer in the heating section calculate [kJ/minute] c) Water added in the humidification section calculate the flow rate [ kg/min]