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

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

(hA - h2)/ (h1 - h2)

(h2 - hA)/ (h1 - h2)

(hA - h1)/ (h2 - h1)

(h1 - h2)/ (hA - h2)

(hA - h2)/ (h1 - h2)

(h2 - hA)/ (h1 - h2)

(hA - h1)/ (h2 - h1)

(h1 - h2)/ (hA - h2)

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Refrigeration and Air Conditioning
The specific humidity during heating and humidification process.

Decreases

Remains constant

None of these

Increases

Decreases

Remains constant

None of these

Increases

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Refrigeration and Air Conditioning
Nusselt number (NN) is given by

NN = ρ V l /μ

NN = V²/t.cp

NN = μ cp/k

NN = hl/k

NN = ρ V l /μ

NN = V²/t.cp

NN = μ cp/k

NN = hl/k

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Refrigeration and Air Conditioning
A vapour absorption refrigerator uses _________ as a refrigerant.

Aqua-ammonia

Freon

Ammonia

Water

Aqua-ammonia

Freon

Ammonia

Water

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Refrigeration and Air Conditioning
A thermostatic expansion valve in a refrigeration system

Maintains different temperatures in evaporator in proportion to load

None of these

Is suitable only for constant load systems

Ensures the evaporator completely filled with refrigerant of the load

Maintains different temperatures in evaporator in proportion to load

None of these

Is suitable only for constant load systems

Ensures the evaporator completely filled with refrigerant of the load

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid

After passing through the condenser

Before entering the expansion valve

Before passing through the condenser

After passing through the expansion or throttle valve

After passing through the condenser

Before entering the expansion valve

Before passing through the condenser

After passing through the expansion or throttle valve

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Refrigeration and Air Conditioning

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

Refrigeration and Air Conditioning The specific humidity during heating and humidification process.

Refrigeration and Air Conditioning Nusselt number (NN) is given by

Refrigeration and Air Conditioning A vapour absorption refrigerator uses _________ as a refrigerant.

Refrigeration and Air Conditioning A thermostatic expansion valve in a refrigeration system

Refrigeration and Air Conditioning In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid

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

Refrigeration and Air Conditioning
The specific humidity during heating and humidification process.

Refrigeration and Air Conditioning
Nusselt number (NN) is given by

Refrigeration and Air Conditioning
A vapour absorption refrigerator uses _________ as a refrigerant.

Refrigeration and Air Conditioning
A thermostatic expansion valve in a refrigeration system

Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid