Comparison of Power Consumption: VRF vs. Water-cooled HVAC Systems

This report presents a Competency Demonstration Report (CDR) focusing on the comparison of power consumption between a VRF (Variable Refrigerant Flow) system and a water-cooled package system for the Sentra Super City project in Rajagiriya. The report includes a detailed analysis of the project, including cooling load summaries, system specifications, and a timeline for the air conditioning and ventilation system installation. The analysis highlights the power input requirements for each system, calculating the total power required per hour and comparing the energy savings of the VRF system over the water-cooled system. The report concludes with a financial analysis of the potential cost savings, water usage comparisons, and the professional experience of the author, including academic qualifications and work history, demonstrating expertise in HVAC system design, project management, and engineering principles. The report aims to showcase the energy efficiency advantages of the VRF system.

Continuing Professional
Development - CPD
Competency Demonstration Report
(CDR)

Continuing Professional Development
I had efficaciously accomplished the Bachelor’s Degree in Mechanical and
Manufacturing Engineering, from the popular college of University of Ruhuna, located in Sri
Lanka. I had started my proficient and professional career from the year of 2010 while
working as a Mechanical Engineer (HVAC) in the organization of Metropolitan Air
Conditioning & Refrigeration (PVT) Ltd, which is the sole Authorized Agent of YORK
equipment in Sri Lanka. I have worked in this particular organization for over 2 years and
hence have obtained hand-on experiences on air conditioning and heating processes. I
comprised of a few responsibilities and duties such as leading project team for Air
Conditioning and Ventilation System installations, site inspection and designing of energy
efficient and correct HVAC system, material procurement and many more. I have worked in
few other organizations as well such as Shin Nippon Lanka (PVT) Ltd and Abans
Engineering (PVT) Ltd, Sri Lanka. In July 2018, I joined Epsicon (Pty) Ltd, Australia as
Project Coordinator. I have been working in this organization efficiently for over 9 months
and am well appreciated by all seniors. My responsibilities includes leading work force for
Installation of Pit, Trenching works and Cable hauling works to meet the compliance and
deadlines, obtaining DBYD plans, As built drawings, Identifying existing services by means
of the Service Locator, hence obtaining approval for the execution works and many more. I
even had been a major part and had even executed several significant projects in my
professional life. Therefore, I desire applying in Australian Immigration or Engineers
Australia with the intention of increasing my respective professional knowledge and skills.
Academic Qualification
Serial No. Examination School/University Year of
Passing
Percentage
1. B. Sc in Mechanical
and Manufacturing
Engineering
University of
Ruhuna, Sri Lanka
Please fill Please fill
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Work Experience
Duration Position Company
July 2018 to Present Project Coordinator Epsicon (Pty) Ltd, Australia. – Contractor
for NBN Project
September 2015 to
July 2018
Mechanical
Engineer(HVAC)
Abans Engineering (PVT) Ltd, Sri Lanka.
- Sole Authorized Agent for TRANE
Equipment & MITSUBISHI ELECTRIC
VRF Systems
November 2012 to
August 2015
Mechanical
Engineer (MEP)
Shin Nippon Lanka (PVT) Ltd
September 2010 to
October 2012
Mechanical
Engineer (HVAC)
Metropolitan Air Conditioning &
Refrigeration (PVT) Ltd. Sole Authorized
Agent of YORK equipment in Sri Lanka
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