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Air enters a counter-flow drier at 70˚C dry bulb temperature and 20˚C dew point temperature. Air...
Air enters a counter-flow drier at 70˚C dry bulb temperature and 20˚C dew point temperature. Air leaves the drier at 40˚C and 60% relative humidity. The initial moisture content of the product is 82% (wet basis). The amount of air moving through the drier is 2000kg of dry air per hour. The mass flow rate of the product is 10kg dry solid per hour. What is the final moisture content of the dried product in wet basis?
Solutions
Amanda K answered 1 year agoRelated Solutions
Air enters a counter-flow drier at 70˚C dry bulb temperature and 20˚C dew point temperature. Air...
Air enters a counter-flow drier at 70˚C dry bulb temperature and
20˚C dew point temperature. Air leaves the drier at 40˚C and 60%
relative humidity. The initial moisture content of the product is
82% (wet basis). The amount of air moving through the drier is
2000kg of dry air per hour. The mass flow rate of the product is
10kg dry solid per hour. What is the final moisture content of the
dried product in wet basis?
Humid air at given : dry-bulb temperature, wet-bulb temperature and total pressure enters a drier at a given molar flow rate.
Humid air at given : dry-bulb temperature, wet-bulb temperature and total pressure enters a drier at a given molar flow rate. Using psychometric chart to estimate :relative humidity, absolute humidity, dew point temperature and humid volume of air A- volumetric flow rate entering drier?B-mass flow rate BDA entering drier?C-Ha and Hm if more mass flow rate of water is added during passing through drier?D-molar composition air leaving drier?E-percentage humidity (Hp) air entering drier?
Air entering a dryer has a temperature (dry bulb) of 60°C and a dew point of...
Air entering a dryer has a temperature (dry bulb) of 60°C and a
dew point of 26.7°C. Using the humidity chart, determine the actual
humidity H, percentage humidity HP, humid heat cS and humid volume
vH.
The atmospheric air 32 °C dry bulb temperature and 70% relative humidity supplied to the cooling...
The atmospheric air 32 °C dry bulb temperature and 70% relative
humidity supplied to the cooling coil at a rate of 45m3 /min. The
air cooling to the saturated state and leaving at a temperature of
16 °C. Determine: () a- Specific humidity at each state. b- Wet
bulb and dew point temperatures at the final state c- Final
relative humidity. d- Mass of water condensed. e- Rate of heat
removed from the air in kW. f- Show the process...
The atmospheric air 32 °C dry bulb temperature and 70% relative humidity supplied to the cooling...
The atmospheric air 32 °C dry bulb temperature and 70% relative
humidity supplied to the cooling coil at a rate of 45m3 /min. The
air cooling to the saturated state and leaving at a temperature of
16 °C. Determine: (10 points) a- Specific humidity at each state.
b- Wet bulb and dew point temperatures at the final state c- Final
relative humidity. d- Mass of water condensed. e- Rate of
heat removed from the air in kW. f- Show the...
The air in a building is to be maintained at 25°C dry bulb temperature and 60%...
The air in a building is to be maintained at 25°C dry bulb
temperature and 60% relative humidity when the outside conditions
are 35°C, 50% saturation with a barometric pressure of 101.3 kPa.
The total heat gains to the room are 15 kW sensible heat and 3 kW
latent heat. There is no recirculation and the fresh air passes
over a cooling coil to dehumidify it, and then a heater before
entering the room. The cooling coil by pass factor...
Air with a dry bulb temperature 75 F and a wet bulb temperature 65 F is...
Air with a dry bulb temperature 75 F and a wet bulb temperature
65 F is at a sea level pressure of 14.7 psia. Using equations to
calculate (a) humidity ratio, (b)
the relative humidity of the air, (c) enthalpy,
(d) dew point, and (e) the mass
density of the dry air. (50)
The air in a room has a pressure of 1 atm, a dry-bulb temperature of 24°C,...
The air in a room has a pressure of 1 atm, a dry-bulb
temperature of 24°C, and a wetbulb temperature of 17°C. Using the
psychrometric chart, determine
(a) The specific humidity,
(b) The enthalpy, in kJ/kg dry air,
(c) The relative humidity,
(d) The dew-point temperature,
and (e) The specific volume of the air, in m3/kg dry air.
A8. For air with temperature and dew-point values given below in °C, find the LCL value...
A8. For air with temperature and dew-point values given below in
°C, find the LCL value (km). T, Td T, Td a. 15, 12 g. 5, 4 b. 15,
10 h. 5, 0 c. 15, 8 i. 5, –5
The dew point depression (Tdd) is defined as the difference between the temperature and dew point...
The dew point depression (Tdd) is defined as the difference
between the temperature and dew point temperature at a given level:
Tdd = T – Td. Using the expression given in lecture (slide 19 of
lecture 4), plot on a graph the height of the LCL (Liding
Condensation level) (y-axis; units of km) vs. the
surface dew point depression (x-axis; units of ˚C). Do this for dew
point depression values ranging from 0˚C to 15˚C. You may code this
or do...
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