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26/06/2025
🔍 Cooling Smarter : Chiller Outperforms The Best in Energy & Cost for Tall Buildings
💡 Why it matters:
Air conditioning can account for over 50% of a building’s energy use—making energy efficiency a top priority for engineers, developers, and building owners alike.
We saw a research of Indonesia, conducted a comparative analysis of chiller air-cooled systems and Variable Refrigerant Flow (VRF) / others technologies for a 15-story office building to determine the most cost-effective and energy-efficient solution for high-rise air conditioning.
📊 Key Findings:
🔌 Electricity Consumption
Chiller system consumed 57,361.3 kWh, while the VRF system / others consumed 61,600.0 kWh over 6 months.
The chiller system proved 7.4% more energy-efficient than the VRF / others
💰 Cost-Effectiveness
Overall, the chiller system was 35% more cost-effective annually than the VRF system / others
🏗️ Investment Costs
Chiller system: IDR 3,131,748,160
VRF system / others: IDR 2,950,889,439
🕒 System Lifespan
Chiller: Up to 25 years
VRF / others: Approximately 15 years
⚙️ Operating Costs (6 Months)
Chiller: IDR 59,368,946
VRF / others: IDR 63,756,000
Annual costs: Chiller – IDR 118,737,891 | VRF / others – IDR 127,512,000
🔧 Annual Maintenance Costs
Chiller: IDR 6,250,000
VRF / others: IDR 12,900,000
📊 Total Annual Cost
Chiller: IDR 250,257,817
VRF / others: IDR 337,137,963
While the chiller system /others had a slightly lower upfront cost, the chiller system provided significantly better long-term value in terms of energy savings, operating costs, and durability.
📌 Next Steps:
As this was a simulation-based study, we recommend further empirical research across building types like hospitals, factories, schools, and airports to confirm broader applicability.
👉 Let’s keep pushing the boundaries of sustainable, smart HVAC solutions.
💡 The Cool Minds Who Made It Happen
Dr. Zainal Arifin:
Dr. Zainal Arifin is the Executive Vice President of Engineering & Technology at PLN Indonesia.
Check out the story of :
https://lnkd.in/eMJgM4PJ
Reference:
https://lnkd.in/epsWT2AJ
🏭 Transcom Electronics Limited: Keeping Bangladesh Cool
At Transcom Electronics Limited, we’re proud to support this evolution by manufacturing:
✅ Why Transcom HVAC?
We offer tailored VRF solutions from world-renowned brands: Daikin, LG, Samsung, and Midea. From design consultation to complete ex*****on, our expert team delivers unmatched performance, reliability, and value.
📞 Need project support or want to explore Chiller for your building?
Ashiq Elahi
Sales Engineer – Transcom Electronics Limited
📱 +880 1313211170 (official); +8801303478017
📧 [email protected]
Let’s build smarter. Let’s cool responsibly.
Dr. Zainal Arifin - PT PLN (Persero) | LinkedIn - Mechanical Engineer of Power Generation (6 years) - Manager of Hydro Electric Power… · Pengalaman: PT PLN (Persero) · Pendidikan: University of Missouri-Saint Louis · Lokasi: Jakarta · 500+ koneksi di LinkedIn. Lihat profil Dr. Zainal Arifin di LinkedIn, sebuah komunitas profesional dengan 1...
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