Kanukuntla Supraja

BE4000

HVAC Lab | Spring semester-2025

The studio focused on HVAC fundamentals, including refrigeration cycles, ventilation, air distribution, and system loops. Practical assignments such as particulate matter analysis, HVAC load calculations, blower door tests for airtightness at 50 Pa, balometer measurements for CFM, tracer decay tests using CO? to determine infiltration rates, an HRV/ERV course project to evaluate system effectiveness, and on-site assessment of an existing college HVAC system strengthened conceptual understanding and system analysis skills. Simulations using DesignBuilder evaluated system performance, energy use, unmet hours, and indoor comfort across varied climates. The work also involved optimizing chiller sizing, sequencing, and humidity control, along with comparative studies of system types to identify energy-efficient strategies suited to diverse environmental conditions.


Report Content

HVAC System Fundamentals

Chiller Components and Refrigeration Cycle

Existing HVAC Assessment: FP Admin Floor

Particulate Matter: Indoor vs Outdoor Analysis

City Climate Impact on HVAC Performance

Unmet Hours for Chiller Sizes (VAV-Air Cooled)

Chiller Sequencing: VAV Air-Cooled System

VRF System: Load Variation, Unmet Hours & Energy Use

Combined HVAC: VRF, VAV & Chiller Integration Impact

Humidity Control & EPI Comparison Across Systems