Entry Details
| Organization: | Dalkia Middle East Energy Company |
| Login ID: | phebby.pasturan@dalkia-me.com |
| Category applied for: | O&M PROVIDER OF THE YEAR (CHILLED WATER SYSTEMS) |
| Submission date: | 12-Aug-2024 |
| Submission Entry: | 1.) What systemic transformation are you able to report as an O&M provider for chilled water systems? (250 words) - Is your sense of responsibility towards sustainable development radiating beyond the specific area of focus of your organisation? (Sustainable development includes energy efficiency, water use optimisation, etc.) - Have you established or strengthened your company policy towards addressing the bigger picture (of helping in the effort to limiting global rise in temperature, etc.) and working in an interconnected manner with other stakeholders? - Have you incorporated changes to organisational culture and behaviour that enable a sustainable development approach? (71)Answer: Dalkia provides full energy conservation approach culminating in complete energy solution guaranteeing plants operate at/below Design Kw per ton and we've been delivering this to all District Cooling customers. KPIs introduced in operation like plant COP, energy optimization, chilled water production availability at any required time significantly optimized operation & achieve concrete results helping clients reach good performance on technical equipment. We pioneered Chiller Re-Commissioning and results were recognized by our clients and stakeholders. As part of O&M contract with Kingdom Tower, our O&M approach follows operational excellence with Energy Efficiency perspective, starting by implementing “DESC” Dalkia Energy Saving Center aimed towards implementing Energy efficiency. The O&M contract include management of 4000 RT plant, we provided comprehensive study to elevate plant operation by introducing CPO & CPM within the plant and implementing control strategies aiming towards achieving better kw/RT. A recommissioning plan has been provided to enhance plant performance. Meanwhile, we are operating the plant with TES tank in philosophy that aims of achieving the best kw/RT. We also offer Cooling-as-a-Service to existing clients. As summary, we have capitalized Dalkia’s expertise not just in O&M but also Energy Efficiency and District Cooling to help clients generate considerable new savings & decrease significant OPEX. As a well-known expert in O&M, Dalkia ensures excellent cooling plant management, labor force quality, O&M of MEP, safety & occupational health. 2.) What strategies have you adopted to achieve maximum level of system performance while respecting chiller flow, temperature limits and occupant comfort? (150 words) (72)Answer: Dalkia as a Large Tonnage Chiller Specialist and Energy Services Company is uniquely positioned as a specialist O&M service provider. In this region, chillers consume 65% to 75% of plants’ total power consumption. We have clear understanding of chillers needs with regards to reliability and energy efficiency, allowing us to implement solutions that greatly improve chillers and ancillary equipment's operating efficiency through enhanced maintenance, operational strategies, chiller upgrades and retrofits. We believe that an energy efficient chiller is a reliable chiller. The following is our methodology to Energy Monitoring, Energy Conservation and Energy Management at our managed Chilled Water Plants: 3.) What measures have you taken to ensure accurate cooling tower control and an optimised total system energy approach, which are seen as essential in an efficient chiller plant? (150 words) (73)Answer: We always apply condenser relief to all chillers we service operate and maintain for not only improved energy performance but chiller safety as well. In addition, we have a propriety software with our agreement with Smardt/Killtech that we can run any plant connected through our energy insight program through a virtual Chiller Plant Energy Conservation System program. Dalkia with Energy & Utility Insight will continue to monitor all chiller and ancillary performance Kw per Ton, cost to produce a Ton, total utility cost. We incorporate Chiller Energy Diagnostic Software in our evaluation process. Our software is a state-of-the-art, diagnostic service that provides the ability to document, monitor, evaluate and manage chiller system performance. We will create chiller efficiency reports by organizing, analyzing and trending chiller data. As part of our analysis using this diagnostic software, we have the ability to monitor daily chiller status, including various parameters. 4.) What water treatment protocols have you followed to ensure that the discharge does not contaminate surface and ground waters? What do you do to prevent direct aspiration into the atmosphere, which could be inhaled by people that are exposed to the mist created by cooling tower drift? (150 words) (74)Answer: At every plant we operate, we attempt to install and utilize Non-Chemical water treatment system. The primary goals of advanced water treatment are to prevent mineral scale formation, control biological activity, and inhibit corrosion. These problems traditionally have been addressed by chemical additives but are difficult to administer, monitor, and control. These are also discharged to environment where they can contaminate surface and ground waters, concentrate in water treatment plant residuals, and directly aspirated by people exposed to the mist created by cooling tower drift. To resolve these problems without using chemicals, we recommends and install, operate and maintains the Clearwater Dolphin Non-chemical water treatment technology. This technology also allows us to increase cooling tower Cycles of Concentration, substantially reducing make-up and blowdown water requirements and associated water cost, reduce carbon emissions associated with water production and distribution associated with water savings. Document: Non-chemical Water Treatment Case Study_ISF Qatar. 5.) How have you prevented a solution from becoming a problem? For instance, VFDs have been known to cause high-frequency voltage spikes in the motor windings. What do you do to anticipate such situations and other similar situations to give comprehensive and lasting solutions, as opposed to inadvertently creating vulnerabilities? (150 words) (75)Answer: VFD retrofits has been around the region for many years but there has been proliferation of companies installing VFD’s on HVAC equipment including chillers which often resulted in premature motor failure. What we do as a company & in fact Dan Mizesko also wrote these steps to insure proper VFD retrofits in his column “License to Chill” in Climate Control Magazine, the first thing that should be understood is if the motor you are applying the VFD to is able to have a VFD installed on it. Example, a Single-Phase motor should not have a VFD installed on it. Some motors are specifically designed to run on VFD power, while others need few components added to be compatible. We ensure to understand motor capabilities and limitations before installing a VFD. We also always check the following: Motor Winding Insulation, Bearings, Speed Ratings, Lead Length, etc. Document: Understanding VFD Installation. 6.) What retro-commissioning projects have you handled to improve the chiller's kW/ton performance? (150 words) (76)Answer: Our energy saving solutions are motivated on getting the industry to understand that until chiller operational improvements are number one priority, the industry will not really be energy efficient. Example, one of our projects: Empire State Building New York’s successful chiller efficiency increase through Chiller Recommissioning. 7.) What steps have you taken to ensure the cleanliness of heat transfer surfaces? What improvements in plant performance are you able to report through your interventions? (150 words) (77)Answer: A chiller’s efficiency is affected most by its resistance to heat transfer, Leaving Temperature difference of heat exchanger tube surfaces above anything else. it is imperative that chiller’s evaporator and condenser tube surfaces have the lowest resistance to heat transfer. Having a full and complete knowledge of components related to the overall heat transfer and ensure cleanliness of heat transfer surfaces, we employ the following best practices, among others 8.) Anything else you wish to say, which you feel would bolster your case? (150 words) (78)Answer: We are present in KSA since 2021 and GCC since 2002 & has become undisputed leader in specialist service for chillers and energy solutions, supporting the growing DC industry in the region. We specialize in repair, retrofit and O&M of all makes and models of large tonnage chillers. Aside from customer-focused approach to chiller engineering, we follow operational excellence with decarbonization perspective, helping customers with energy transition. We uphold integrity in providing innovative, cost-effective solutions to decarbonize client's facilities and engage in decarbonisation efforts. |
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| References: | CCAKSA24-OMPYCW || phebby.pasturan@dalkia-me.com |