Controlled Swine Housing Test Module
Provides an insulated environmental room (8.0 m × 12.0 m) with fully slatted flooring and variable stocking pens.
Agricultural Engineering / Livestock Heat Balance
FREE TO EXPLORELABORATORY 33 · AGRICULTURAL ENGINEERING
Livestock Housing Sensible Heat Balance & Minimum Ventilation
Quantify sensible heat production and determine minimum winter ventilation airflow in a confinement livestock housing facility across varying animal biomass loads. Explore interactive farm machinery simulation, irrigation hydraulics, and agricultural engineering telemetry.
FARM MACHINERY · SOIL & WATER · POST-HARVEST · STRUCTURES
Your virtual agricultural engineering laboratory.
SENSIBLE HEAT OUTPUT Q_S—
FIELD & TEST CELL TELEMETRY
Ready to sample with Biomass M_a = 6000 kg.
Adjust Biomass M_a, then execute agricultural trial.
Agricultural engineering telemetry and biosystems states are evaluated rigorously using 64-bit IEEE 754 precision. Residuals reflect ordinary least-squares regression across successive observations. Continuous data structures support high-fidelity agricultural and environmental modeling.
Agricultural assumptions and boundary condition limits
The linear sensible heat scaling applies within the thermoneutral zone (indoor temperature 20 °C to 24 °C). Evaluated in a controlled swine nursery room at standard thermoneutral indoor temperature (22.0 °C) with growing feeder pigs. Sensible heat output reflects steady-state thermal power generation after accounting for structural building envelope transmission losses.
Agricultural apparatus & field instrumentation sensors.
Variable-Frequency Exhaust Ventilation Fan
Delivers calibrated continuous airflow rates from 200 to 3000 m³/h with airflow nozzle meter.
Multi-Point Aspirated Thermocouple Grid
Measures intake, spatial room, and exhaust air dry-bulb temperatures with 0.1 °C precision.
High-Precision Calibrated Dew-Point Hygrometer
Determines indoor and exhaust moisture humidity ratio to isolate sensible from latent heat flux.
Livestock Platform Scale
Weighs individual and group animal batches to establish exact live biomass stocking totals.
Building Envelope Heat Flux Meter Network
Monitors conductive heat transmission through walls, ceiling, and foundation to close energy balance.
FOLLOW THE METHOD
A reason behind every step.
Quantify sensible heat production and determine minimum winter ventilation airflow in a confinement livestock housing facility across varying animal biomass loads. Standardized parameter settings: 2000, 4000, 6000, 8000, 10000, 12000 kg.
01
Stocking Biomass Standardization
Weigh and group nursery feeder pigs into uniform pens to establish the initial test biomass level of 2000 kg.
02
Ventilation Rate Calibration
Set exhaust ventilation to a constant continuous airflow rate verified via calibrated intake orifice plate.
03
Room Thermal Stabilization
Allow animals to acclimate for 4 hours until spatial room temperatures and floor temperatures achieve steady thermal balance.
04
Enthalpy and Heat Balance Acquisition
Measure ventilation airflow rate, temperature rise (T_exhaust - T_inlet), and wall transmission losses over a 2-hour monitoring window.
05
Biomass Incrementation Progression
Systematically increase pen stocking biomass to 4000, 6000, 8000, 10000, and 12000 kg, repeating thermal balance measurements.
06
Sensible Heat Coefficient Derivation
Calculate sensible heat output Q_s = V_dot · ρ · C_p · (T_exhaust - T_inlet) + Q_structural and plot Q_s versus biomass M_a to determine q_a.
YOUR NOTEBOOK · 0 OBSERVATIONS
Turn measurements into agricultural engineering insight.
Points are your recorded observations. The solid regression line validates Livestock Heat Balance mathematical scaling.
LINEAR REGRESSION FIT · y = mx + b
Q_s = q_a · M_a = 0.0012 · M_a
| # | Total Animal Biomass M_a (kg) | Sensible Heat Output Q_s (kW) | Animal biomass M_a (kg) | Sensible heat output Q_s (kW) | Remove |
|---|
No readings yet. Execute an agricultural trial and record it.
Calculate it yourself.
CHECK YOUR UNDERSTANDING