Energy performance assessment and cost-effective energy conservation measures for government buildings

Name: Preecha Tummu

Organization : Udon Thani Rajabhat University. Faculty of Technology

Email : preecha.tu@udru.ac.th

Name: Warachit Phayom

Organization : Udon Thani Rajabhat University. Faculty of Technology

Name: Ronnarit Junsiri

Organization : Udon Thani Rajabhat University. Faculty of Technology

Name: Sorawin Phukapak

Organization : Udon Thani Rajabhat University. Faculty of Technology

Name: Wipa Loengbudnark

Organization : Udon Thani Rajabhat University. Faculty of Technology

Name: Komsan Mulper

Organization : Udon Thani Rajabhat University. Faculty of Technology

keyword: Government buildings

LCSH: Building -- Energy consumption -- Cost effectiveness

; Electricity savings

; Energy performance indicators

Abstract: Thailand's electricity consumption has been increasing by 2-5% annually, including in government buildings, which number approximately 17,000 nationwide. To mitigate energy use, the government has set a target to reduce electricity consumption in public buildings by 10-15%. This study investigates the energy performance of various systems in 39 government buildings in Udon Thani through on-site surveys and measurements. The collected data were analyzed using computational tools to assess the cost-effectiveness of different energy conservation measures. The findings indicate that switching all lighting to LED and installing 3-inch thick fiberglass insulation under the attic ceiling yield the shortest payback periods of 0.14 and 0.66 years, respectively, making them highly cost-effective investments. Conversely, replacing all air conditioning units with high-efficiency models and upgrading external walls to lightweight concrete with 1-inch thick thermal insulation require higher capital investment and have relatively long payback periods of 6-7 years. These insights provide a foundation for policymakers and facility managers to implement practical and economically viable energysaving strategies in government buildings.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2025

Modified: 2025-12-01

Issued: 2025-12-01

บทความ/Article

application/pdf

BibliograpyCitation : ใน สมาคมวิศวกรเครื่องกลไทย และมหาวิทยาลัยเทคโนโลยีราชมงคลอีสาน วิทยาเขตขอนแก่น. คณะวิศวกรรมศาสตร์. สาขาวิชาวิศวกรรมเครื่องกล. การประชุมวิชาการเครือข่ายวิศวกรรมเครื่องกลแห่งประเทศไทย ครั้งที่ 39 (ME-NETT 2025) (pp.1142-1150). ขอนแก่น : มหาวิทยาลัยเทคโนโลยีราชมงคลอีสาน วิทยาเขตขอนแก่น, 2568

eng

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