HVAC SYSTEMS DESIGN AND SELECTION OF AN OFFICE BUILDING IN CENTRAL JAKARTA

• Main Author: Puspa Gayatri, Erin
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/46042
• Institution: Institut Teknologi Bandung

Heating, ventilation, and air conditioning (HVAC) is an indoor environmental control system that provides thermal comfort and acceptable indoor air quality for occupants in a building. Particularly in Jakarta, air conditioning constitutes 47% of the total building energy consumption in office buildings. The amount of electricity required to run an HVAC system leaves a significant amount of carbon footprint. Elevated carbon content in the atmosphere leads to increased global temperature, consequently compromising the livelihood and survival of humankind. Efforts have been made primarily by the public sector to conserve energy, however the private sector generally requires more incentive to reduce its energy consumption. By choosing an appropriate HVAC system, private sector can lower its initial cost and energy expenses while contributing to environmental preservation. HVAC systems design and selection aims to estimate the cooling load of a building and assign an HVAC system with suitable cooling capacity that requires the least amount of capital. Nonetheless, engineers should assert to deliver a design that creates the least environmental impact. Cooling load estimation and calculation of pressure loss in the duct system and refrigerant lines were performed on an office building in Central Jakarta. Three HVAC systems were compared and contrasted based on their technical specification, total project cost, cumulative energy cost, and environmental impact by using a quantitative method. The office building generated peak cooling load at 197 kW, and the split duct system was chosen as the most suitable HVAC system to be installed in the building. The specific energy consumption of the system was 9.0 kWh/m 2/month and the project was valued at 4,507,346,073 IDR.