Question Bank • QB_EXP_APE_PSY_027 NAT • 2 Marks

Section 6: Agricultural Process Engineering

Psychrometry & Moist Air Thermodynamics

Subtopic: Sensible heating process on psychrometric chart

Question Statement:

Moist air enters a heating duct at $1.20\text{ m}^3/\text{s}$ with specific volume $v_1 = 0.85\text{ m}^3/\text{kg dry air}$. If the air leaves the heating section at specific volume $v_2 = 0.95\text{ m}^3/\text{kg dry air}$, calculate the volumetric flow rate at the duct exit in $\text{m}^3/\text{s}$ (round off to two decimal places).

Answer Key:

1.34

Step-by-Step Solution & Explanation

$m_a = \frac{V_1}{v_1} = \frac{1.20}{0.85} = 1.4118\text{ kg/s}$. Exit volumetric flow rate $V_2 = m_a v_2 = 1.4118 \times 0.95 = 1.341\text{ m}^3/\text{s}$.
← Previous (QB_SUB_APE_0193) Next (QB_EXP_APE_PSY_033) →

Practice In Authentic CBT Exam Interface

Test your skills under authentic timed conditions with live scoring and AIR percentile ranking.

Launch CBT Mock Test