The sensible heat factor during cooling and dehumidification process is given by (where h₁ = Enthalpy of air entering the cooling coil, h₂ = Enthalpy of air leaving the cooling coil, and hA = Enthalpy of air at the end of dehumidification process)

Refrigeration and Air Conditioning
The sensible heat factor during cooling and dehumidification process is given by (where h₁ = Enthalpy of air entering the cooling coil, h₂ = Enthalpy of air leaving the cooling coil, and hA = Enthalpy of air at the end of dehumidification process)

(hA - h2)/ (h1 - h2)

(hA - h1)/ (h2 - h1)

(h1 - h2)/ (hA - h2)

(h2 - hA)/ (h1 - h2)

(hA - h2)/ (h1 - h2)

(hA - h1)/ (h2 - h1)

(h1 - h2)/ (hA - h2)

(h2 - hA)/ (h1 - h2)

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Refrigeration and Air Conditioning
During heating and humidification, the final relative humidity of air

Can be lower or higher than that of the entering air

Is lower than that of the entering air

Is higher than that of the entering air

None of the listed here

Can be lower or higher than that of the entering air

Is lower than that of the entering air

Is higher than that of the entering air

None of the listed here

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Refrigeration and Air Conditioning
The boiling point of ammonia is

-33.3°C

-77.7°C

-30°C

-10.5°C

-33.3°C

-77.7°C

-30°C

-10.5°C

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Refrigeration and Air Conditioning
Short horizontal lines on pressure-enthalpy chart show

Constant entropy lines

Constant total heat lines

Constant pressure lines

Constant temperature lines

Constant entropy lines

Constant total heat lines

Constant pressure lines

Constant temperature lines

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Refrigeration and Air Conditioning
Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator.

Equalize

Increase

Reduce

None of these

Equalize

Increase

Reduce

None of these

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Refrigeration and Air Conditioning
The relative coefficient of performance is equal to

(Actual C.O.P.) /(Theoretical C.O.P.)

(Actual C.O.P.) × (Theoretical C.O.P.)

None of these

(Theoretical C.O.P.)/ (Actual C.O.P.)

(Actual C.O.P.) /(Theoretical C.O.P.)

(Actual C.O.P.) × (Theoretical C.O.P.)

None of these

(Theoretical C.O.P.)/ (Actual C.O.P.)

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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning The sensible heat factor during cooling and dehumidification process is given by (where h₁ = Enthalpy of air entering the cooling coil, h₂ = Enthalpy of air leaving the cooling coil, and hA = Enthalpy of air at the end of dehumidification process)

Refrigeration and Air Conditioning During heating and humidification, the final relative humidity of air

Refrigeration and Air Conditioning The boiling point of ammonia is

Refrigeration and Air Conditioning Short horizontal lines on pressure-enthalpy chart show

Refrigeration and Air Conditioning Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator.

Refrigeration and Air Conditioning The relative coefficient of performance is equal to

Refrigeration and Air Conditioning
The sensible heat factor during cooling and dehumidification process is given by (where h₁ = Enthalpy of air entering the cooling coil, h₂ = Enthalpy of air leaving the cooling coil, and hA = Enthalpy of air at the end of dehumidification process)

Refrigeration and Air Conditioning
During heating and humidification, the final relative humidity of air

Refrigeration and Air Conditioning
The boiling point of ammonia is

Refrigeration and Air Conditioning
Short horizontal lines on pressure-enthalpy chart show

Refrigeration and Air Conditioning
Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator.

Refrigeration and Air Conditioning
The relative coefficient of performance is equal to