Entry Details

Organization:	Sobha Constructions LLC
Login ID:	SobhaConstructions
Category applied for:	HVAC TECHNICIAN OF THE YEAR (ENERGY EFFICIENCY)
Submission date:	28-Oct-2024
Submission Entry:	1.) What transformation are you able to report as an HVAC technician? Is your sense of responsibility towards sustainable development as an individual radiating beyond your specific focus on energy efficiency, considering that sustainable development also includes water use optimisation (embedded energy), better Indoor Environmental Quality (IEQ), etc.) Have you established or strengthened your individual approach towards addressing the bigger picture (of helping in the effort to limiting global rise in temperature or improvement in IEQ, etc.) and working in an interconnected manner with other stakeholders? (102) Answer: As an HVAC technician, I have witnessed a significant transformation in our approach to systems installation and maintenance, emphasizing energy efficiency and sustainability.we implemented specific IEQ measures designed to enhance occupant health and safety across our projects. Key actions included upgrading ventilation systems with high-efficiency filters (MERV-13 or higher) and increasing fresh air intake to dilute indoor contaminants effectively. We also integrated UV-C light systems within HVAC units to reduce viral load in circulated air, which has proven effective in limiting airborne pathogens. I have strengthened my individual approach to addressing the broader picture of sustainable development. I collaborate with architects, engineers, and other stakeholders to design systems that prioritize not only energy efficiency but also Indoor Environmental Quality (IEQ). 2.) Given that buildings consume 40% of global energy, within which at least 40% is consumed by HVAC systems, how has the goal of 1.5 C additionally impacted you personally in terms of HVAC system O&M strategies? What specific changes have you suggested incorporating in your O&M in order to support the 1.5 goal? (103) Answer: To support the 1.5°C goal, I have suggested incorporating predictive maintenance techniques that leverage data analytics to optimize system performance and minimize energy waste. This approach allows us to address potential issues before they escalate, reducing downtime and enhancing overall system efficiency. Additionally, I advocate for regular performance benchmarking against established energy efficiency standards, enabling us to identify improvement areas. Incorporating smart controls and demand-controlled ventilation further enhances energy savings by adjusting HVAC operation based on occupancy and indoor air quality needs. By implementing these changes, I aim to contribute actively to reducing energy consumption, aligning our HVAC practices with global sustainability goals, and supporting efforts to mitigate climate change. 3.) Have you been part of any implementation team that has conducted an energy management programme in a building in the past one year? What percentage reduction in energy consumption and carbon emission did the building achieve? What specific tasks did you carry out towards the outcomes? (104) Answer: In the prasent year, I have been part of the implementation team for the Verde project, where we conducted a comprehensive energy management program. Through our initiatives, we achieved a 20% reduction in energy consumption and a 15% decrease in carbon emissions. My specific contributions included conducting energy audits to identify inefficiencies and potential improvements in the HVAC systems. I collaborated with the engineering team to implement smart building technologies, such as automated controls and real-time energy monitoring systems, which facilitated better energy management. Additionally, I facilitated training sessions for facility management staff on best practices for energy conservation and the operation of newly installed systems. 4.) Have you resolved any perpetual design-related HVAC complaint from a tenant in the past one year? If so, how? (105) Answer: In the past year, I successfully resolved a persistent HVAC-related complaint from a tenant regarding inconsistent temperature control and excessive noise from the HVAC system. The tenant reported frequent fluctuations in temperature, causing discomfort, and the noise was disruptive. To address these issues, I conducted a thorough inspection of the HVAC system serving the tenant’s space. I identified that the existing ductwork was improperly sized, leading to inadequate airflow and increased noise levels. Additionally, I discovered that the thermostat calibration was off, contributing to the temperature inconsistencies. 5.) How do you respond when asked to recharge an air conditioning system? What specific steps or procedures do you adhere to? (106) Answer: When asked to recharge an air conditioning system, I follow a structured procedure to ensure task is done safely and effectively: Assessment: I first inspect the system for visible leaks or issues, using pressure gauges to check refrigerant levels. Shutdown: I turn off the system and disconnect it from power supply to ensure safety during the procedure. Recovery: If the system has low refrigerant levels, I use a recovery machine to safely extract any remaining refrigerant from the system. Evacuation: I connect a vacuum pump to the service ports, creating a vacuum to remove moisture and contaminants from the refrigerant lines. Recharge: I then carefully recharge the system with the specified type and amount of refrigerant, adhering to manufacturer guidelines. Testing: Finally, I run the system to ensure proper operation, checking for correct pressure and monitoring for any leaks. This thorough approach ensures air conditioning system functions optimally and safely. 6.) What HSE protocols do you adhere to when handling refrigerants? (107) Answer: Personal Protective Equipment (PPE): I always wear appropriate PPE, including gloves, safety goggles, and respiratory protection when necessary, to safeguard against exposure. Ventilation: I ensure that the work area is well-ventilated to minimize the risk of inhaling refrigerant gases, which can be harmful. Leak Detection: I regularly check for leaks using electronic leak detectors to prevent refrigerant release into the atmosphere and to maintain safety. Proper Storage: I store refrigerants in designated, properly labeled cylinders, ensuring they are secured and protected from damage. Emergency Procedures: I familiarize myself with emergency response procedures, including how to manage refrigerant spills or leaks and know the location of safety data sheets (SDS) for all refrigerants used. Regulatory Compliance: I strictly follow local and international regulations regarding refrigerant handling, recovery, and disposal to protect both the environment and public health. 7.) Describe general and site-specific training you have received in the past one year? (108) Answer: General Training: I completed a comprehensive training course on refrigerant management, focusing on proper handling, recovery, and disposal techniques. This course covered the latest regulations and best practices for minimizing environmental impact, ensuring compliance with safety standards. Additionally, I attended workshops on energy efficiency technologies, learning about the latest advancements in HVAC systems and their applications. 8.) What do you do when confronted with a BMS/Chiller Plant Manager or any equipment that might require extensive repair/upgrade/ modifications? (109) Answer: When confronted with a Building Management System (BMS), Chiller Plant Manager, or any equipment requiring extensive repair, upgrade, or modifications, I follow a systematic approach: Assessment: I begin by conducting a thorough assessment of the equipment to identify the specific issues and evaluate the extent of the required repairs or upgrades. This includes reviewing performance data and maintenance logs. Collaboration: I engage with relevant stakeholders, including facility managers, engineers, and maintenance teams, to discuss findings and gather input on potential solutions. Propose Solutions: Based on the assessment, I develop a detailed proposal outlining the necessary repairs or modifications, including timelines, budget estimates, and expected outcomes. Implement Changes: Upon approval, I coordinate with the team to implement the changes, ensuring minimal disruption to operations. Monitoring: After the upgrades or repairs, I closely monitor the equipment's performance to ensure it operates efficiently and effectively, addressing any issues that may arise promptly. 9.) Describe your exposure to AI and IoT in building assets where you are tasked to operate and maintain. (110) Answer: I have utilized IoT sensors, such as Digital Anemometers, for real-time monitoring of environmental conditions, including temperature, humidity, and air quality. This data allows for more precise control of HVAC systems, leading to improved energy efficiency and occupant comfort. 10.) In the past one year, has any building under your responsibility secured a Green Building certification? If so, under which rating systems and at what level of certification? (111) Answer: In the past year, no building under my responsibility has secured a Green Building certification; however, we are currently in the process of obtaining certification for two projects: Verde and Waves Opulence. We are targeting certification under the LEED rating system, focusing on optimizing energy efficiency, water use, and Indoor Environmental Quality (IEQ). 11.) Have you recommended additional columns to O&M logs through any unique situations you might have encountered? (112) Answer: Yes, I have recommended additional columns to the Operations and Maintenance (O&M) logs based on unique situations encountered during my tenure. One notable instance involved frequent discrepancies in the performance of HVAC systems, which prompted me to suggest enhancements to our logging practices.
Supporting documents:	none
References:	CCAUAE2416 \|\| lakshmi.pisipati@sobhaconst.com

Copyright © 2022, CPI Industry, Dubai, UAE. All rights reserved.