In a drying process, the moisture content of 35 kg of food will be reduced from 82% to 6%. The air used for drying enters the dryer at 80 ° C and exits at 70 ° C. 130 kg of saturated steam is used at 105 ° C to heat the air. The food enters the dryer at 25 ° C and exits at 60 ° C. Calculate the drying efficiency for an adiabatic operating dryer, as the ambient air temperature is 20 ° C. (Specific temperature of the food = 3.30 kj / kg ° C)

Q: Rice at 35% moisture is to be dried to produce 500 lb/hr with 5% moisture. The air at 85 C and 30%…

A: RELATIVE HUMIDITY Meaning of relative HUMIDITY: the proportion of how much water fume really present…

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A: rite the

Q: e removed. Air is supplied to the auditor t 19°C. Determine (a) the relative humidit ondition 1 and…

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Q: pace at 10 late st air supplied to the space gain of space in kW. d. of the air cooler in kW

A: given:

Q: he air has a dry ball temperature of 30 degrees C and an initial wet bulb temperature of 20 degrees…

A: Given that, Dry bulb temperature of air, td=30 °C,Wet bulb temperature of air, tw=20 °C,After…

Q: Calculate the EER rating of a 20 ton (240000 Btu) air conditioning unit with an average electrical…

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Q: 67kW and 49 kg per hour or moisture must be removed. Air is supplied

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A:

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A:

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Q: Example 9. Moist air at 20°C dry-bulb and 8°C thermodynamic wet-bulb temperature is to be processed…

A:

Q: Wet material, containing 215% moisture (dry basis) is to be dried at the rate of 1.5 kg/sec in a…

A:

Q: Is there any heat loss taking place to the air while undergoing adibatic humidification processes?

A: The meaning of adiabatic means there is no exchange of heat.

Q: Air with a relative humidity of 95% and temperature of 35°C is pumped into a chamber filled with a…

A: Given : ϕ=0.6 T1=35 C , RH=95% T1=40 C , RH=5% t = 15 mins = 900 secs To find :

Q: Explain the processes of adiabatic cooling and heating.

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Q: Why is radiation heat transfer in forced-air-cooled systems disregarded?

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A:

Q: To eliminate dust, air with a dry bulb temperature of 38 oC and a wet bulb temperature of 27 oC is…

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Q: 600 lps of air at 30°C dry-bulb and 22°C wet-bulb temperatures is heated to a temperature of 45°C…

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Q: In a drying process, the moisture content of 25 kg of food will be reduced from 88% to 8%. The air…

A: Write the given information.

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Q: What is the cooling duty to freeze water from 50°C to ice at 0°C, at the rate of 10 t/day?

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Q: following nditiol Outdoor dry-bulb temperature 40 °C Outdoor wet-bulb temperature 20 °C Expected…

A:

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Q: For summer air conditioner application of a room; The sensible heat gain of the room is 13kW, the…

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A: Introduction Evaporative cooling has been utilized to cool living spaces since the dawn of human…

Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.