Ingenieur Vol. 75 ingenieur July 2018-FA - Page 66

INGENIEUR KKR* CASE STUDY: Monitoring & Verifying Energy Performance For Chiller Retrofit Works By Ir. Dr Abdul Murad bin Zainal Abidin, Ir. Hasbullah bin Osman & Thiagarajen Munusamy Mechanical Engineering Branch Public Works Department Malaysia A ccording to the United Nations Energy Programme, the energy in buildings contributes about 40% of total global energy. In any individual office building, air- conditioning contributes about 60% of the total electricity consumption. With regards to an existing building, especially ones designed and constructed in the absence of energy efficiency considerations, there is an opportunity to retrofit the mechanical systems. This is especially so for Government buildings with a limited budget in creating new building stocks and upgrading. WHAT IS MEASUREMENT & VERIFICATION? Measurement and Verification (M&V) is the process of using measurements to reliably * Komplek Kerja Raya 6 64 VOL VOL 75 55 JULY-SEPTEMBER JUNE 2013 2018