THE GREAT DEBATE
DUBAI, UAE, 27 April 2022: CPI Industry, publishers of Climate Control Middle East magazine, will be hosting ‘The Great Debate: CHW vs VRF systems’. The second edition of the event, to be held on May 30 in Dubai, has captured the imagination of the industry and stoked excitement with its unique, courtroom-styled setting and format.
The first edition, held in 2011, at ADNEC in Abu Dhabi, was a novelty, replete with judge, jury, witness box and fiery advocates arguing with passion and interrogating at will to ascertain the best possible system, all things considered, to deliver affordable, efficient, resource-friendly, safe and reliable comfort cooling in the GCC region.
The Great Debate: CHW vs VRF systems is a revival of the 2011 setting, at a time when proponents of chilled water systems and variable refrigerant flow systems claim to have made substantial progress and achieved greater market penetration. Does the argument, ‘horses for courses’ hold true, or are we missing a point that holds the key to safe, sustainable, affordable and reliable air conditioning?
A key question that probably would settle the swirling dust surrounding chilled water systems and variable refrigerant flow systems is, ‘Where is the data?’ The Great Debate is an attempt at arriving at clarity, at a time when the world is desperately seeking solutions to lower greenhouse gas emissions, reduce total cost of ownership and to strengthen Indoor Air Quality interventions.
Whilst The Great Debate will feature technical presentations, the centrepiece of the event will be the unique courtroom setting, post-lunch, designed to host a no-holds-barred discussion on chilled water and variable refrigerant flow systems, with the aim of arriving at clarity on performance data on energy use, reliability, affordability and health & safety, amongst other topics, when the systems are deployed across multiple building profiles.
The conference will feature all the typical furniture and props of a courtroom, with stakeholders assuming the roles of judge, jury, advocates, witnesses (developers, building owners and building owner associations) and courtroom onlookers. The conference will summon proponents and consumers of both approaches to take to the witness box for cross-examination, with ample scope to present their side of the argument, with the aid of audio-visual presentations and any other means they may choose to build a strong case.
“The conference is not an attempt at gimmickry but a serious and earnest exercise to highlight facts with unprecedented clarity,” said Surendar Balakrishnan, Co-Founder & Editorial Director, CPI Industry. “It is expected that the coming together of master developers, developers, building owner associations, consultants, contractors, manufacturers, distributors and sectoral end-users in healthcare, hospitality, aviation, education and malls in a unique courtroom setting would prompt greater insight, leading to lowering of total cost of ownership and greenhouse gas emissions and to improving Indoor Air Quality.”
Key talking points in the courtroom session include:
- Energy efficiency in multiple building types/energy consumption on an annualised basis; M&V; onsite data harvesting and analysis
- Sources of energy: Natural Gas, hydrogen, Renewable Energy
- Water-use optimisation in multiple building types
- O&M issues (streamlined maintenance protocols)
- Refrigerants and occupant safety
- Cooling towers and human health
- Environmental impact (atmosphere, soil, water); net-zero-building aspirations
- Comfort cooling: reliability of cooling (last-mile guarantee), zoned cooling and heating, simultaneous cooling and heating
- Cost of installation, broad capex considerations
- Total cost of ownership
- Aftermarket service – including installation training, mentorship, support, supervision, spare parts – provided as a standard business practice by all manufacturers and suppliers
- Need for an international standard that provides standardised technical detail for minimum expected performance
- Regulation: MEPS and their impact on governing the performance of HVAC equipment and their interaction with other building assets in ensuring better building performance
- Smart cities and digital intervention
– ENDS –
For more details, contact:
Strategic Public Affairs Liaison & Events Manager, CPI Industry
M: +971 50 55 22 461
Wilo Middle East acquires PumpsPro
DUBAI, UAE, 17 February 2021: Wilo Middle East (WME), manufacturer of pumps and systems, acquired PumpsPro, a pump solution service provider under Direct Trade House International LLC (DTHI). Making the announcement through a Press release, it said the acquisition entails the creation of a new business unit, which will maintain the name, PumpsPro but will be managed and operated as a Wilo company.
According to WME, the signing of the agreement took place at its office in Jebel Ali Free Zone (JAFZA) in the presence of Jens Dallendoerfer, Senior Vice President – Sales Region Emerging Markets, Wilo Group; Yasser Nagi, Managing Director, Wilo Middle East & Group Sales Director MENA Region and Bijan Sheibani, Chairman, Direct Trade House International LLC.
Under the terms of the agreement, WME said it will be acquiring PumpsPro, including all its assets, highly skilled service workforce, brand and extensive portfolio of customers. The move is expected to further reinforce WME’s position as a complete solution provider in the UAE and the Middle East region, it added. Nagi said: “We are proud to announce the signing of a strategic acquisition agreement with PumpsPro – a move that is expected to make Wilo a leading solutions provider in the UAE and the rest of the region. It’s a win-win agreement that falls in line with Dubai’s Demand Side Management Strategy 2030 and gives us the opportunity to support the retrofit program of 30,000 buildings by 2030, which aims to make the emirate one of the most sustainable cities in the world.”
According to WME, PumpsPro has been working with it as service partner for its overhauling and repairing business since 2018. The signing of the new agreement, it said, is expected to reinforce Wilo’s capabilities, equipping the company to bring repairing and overhauling activities in-house, especially catering to the large number of building service, water management and industrial customers that require the right servicing that leads to strong reliability and asset uptime. WME said its offshore customers in the region will also benefit from the acquisition, where demand for servicing offshore pumps has seen a big uptake, providing oil and gas customers the just-in-time reliable servicing they require.
Peter Glauner, Senior Vice President – Group Service, Wilo Group, said: “This agreement boosts Wilo Middle East’s competitive advantage over its competitors. We are confident to seeing more benefits, as business synergies are further integrated. Over the years, we have reinforced our position as a global leading premium manufacturer of innovative pumps and pumping systems in the field of building services, water management and industry. We remain steadfast in our efforts to set new standards as a leader of innovation in terms of system efficiency and maximum energy savings.”
According to WME, PumpsPro’s relationship with Wilo Middle East dates back to 2018. WME said PumpsPro has earned a reputation of being a complete solution provider, with its employees cited for their high professionalism and expertise. Sectors that will benefit from the newly signed agreement include facilities management, hotels, leisure destinations, hospitals, schools, water parks, offshore, water management and industry, WME added.
Dallendoerfer said: “We are very confident that this acquisition deal between Wilo Middle East and PumpsPro will help consolidate our efforts to position ourselves as a top candidate in terms of providing complete turnkey value-added solutions to our retrofit customers, who are looking for a one-stop shop capable of providing services in supply, installation, start-up, testing/commissioning and other value-added requirements.”
ASHRAE Epidemic Task Force releases updated Building Readiness Guide
ATLANTA, Georgia, 02 February 2021: With the performance of many HVAC systems in buildings still being evaluated, the ASHRAE Epidemic Task Force has updated its reopening guidance for HVAC systems to help mitigate the transmission of SARS-CoV-2, ASHRAE said through a Press release.
“The Building Readiness Guide includes additional information and clarifications to assist designers and commissioning providers in performing pre- or post-occupancy flush calculations to reduce the time and energy to clear spaces of contaminants between occupancy periods,” said Wade Conlan, Lead, ASHRAE Epidemic Task Force Building Readiness team. “New information includes the theory behind the use of equivalent outdoor air supply, method for calculating the performance of filters and air cleaners in series, and filter droplet nuclei efficiency that help evaluate the systems’ ability to flush the building.”
According to ASHRAE, major updates to the building readiness guidance include the following:
- Pre- or post-flushing strategy methodology: The strategy has been updated to include the use of filter droplet nuclei efficiency, which is the overall efficiency of filter, based on viable virus particle sizes in the air, to assist in determining the impact of the filter on the recirculated air on the equivalent outdoor air. This allows the filter efficiency as a function of particle size, using ASHRAE Standard 52.2 test results, to be estimated based on the expected size distribution of virus-containing particles in the air. This calculation is currently based on Influenza A data and will be updated as peer-reviewed research becomes available for the distribution of particle sizes that contain a viable SARS-CoV-2 virus. Additionally, a chart has been added to help determine the time to achieve 90%, 95% or 99% contaminant reduction, if the equivalent outdoor air changes per hour is known.
- Flushing time calculator: There is now a link to a view-only Google Sheet that can be downloaded for use, to help determine the available equivalent outdoor air changes and time to perform the flush. This sheet is based on a typical mixed AHU with filters, cooling coil, with potential for in-AHU air cleaner (UVC is noted in the example), and in-room air cleaning devices. Provided efficiencies of MERV-rated filters are based on the performance of over 200 actual filters from MERV 4 through 16, but the tool also allows users to enter custom characteristics for specific filters.
- The sheet also calculates the filter droplet nuclei efficiency, based on the cited research but allows a user to adjust the anticipated distribution of virus, as desired. It also allows specification of the zone (room) air distribution effectiveness from ASHRAE Standard 62.1 to account for the impact of the HVAC system air delivery method on the degree of mixing. Default calculations assume perfect mixing. Finally, the tool allows for the target air changes to be adjusted if an owner wants to achieve a different per cent removal in lieu of the recommended 95%.
- Heating season guidance: The guide now includes data to consider for heating of outdoor air and the potential impact on pre-heat coils in systems.
- Adjustments to align with Core Recommendations: The Core Recommendations were released in January 2021, and this guidance document needed to be updated to ensure that the information provided aligned with the intent of those recommendations. This included minimum outdoor air supply and filter efficiency requirements and their role in an equivalent outdoor air supply-based risk mitigation strategy.
According to ASHRAE, the guidance still addresses the tactical commissioning and systems analysis needed to develop a Building Readiness Plan, increased filtration, air cleaning strategies, domestic and plumbing water systems, and overall improvements to a system’s ability to mitigate virus transmission.
‘The UAE leadership has a view of the future – and it is not just tomorrow’
Congratulations on your appointment as Denmark’s Climate Ambassador. Could you speak on the potential areas of cooperation between the UAE and Denmark?
I think it’s remarkable the far-sighted leadership the UAE has taken as an oil- and gas-producing country. The leaders have a view of the future – and the future that is not just tomorrow, not just five or 10 years, but they are thinking ahead to 20 or 50 years from now.
We are talking about the major transformation of energy systems. The largest solar farms in the world are in the UAE, and a lot of investment is being done in this area. The country is taking energy efficiency in buildings seriously and addressing the challenge of having had, years ago, the highest carbon footprint per inhabitant.
In that sense, cooperation between the UAE and Denmark on energy and other topics related to food and maritime issues makes imminent sense. We are the country in the EU with the largest oil -production. We have oil and gas in the North Sea. But we are slowly ending our exploration of that oil and gas, and in December 2020, the Danish Parliament decided to end fossil extraction in the North Sea by 2050 with a plan for the just transition of impacted workers and a conversion of the oil and gas fields to Carbon Capture Utilization and Storage (CCUS)].
There is also a huge market for renewable energy, globally, as this transformation [can be seen] worldwide. In Denmark, we are building better and taller wind farms and offshore wind farms, including over the next two years in two new energy islands. As a result, there has been global interest surrounding Danish windfarm operators and wind constructors, many of whom are now in demand in a number of countries such as the US, Korea and Australia.
Could you speak more about the competitive advantage that countries such as the UAE can have from specialising in sustainable cooling solutions, both in terms of developing the expertise within the country and in terms of pioneering solutions? Do you see this to be a growing market?
The world is undergoing an energy transformation, and the UAE is also very well positioned to be part of it and, in some instances, to lead this transformation. As such, a partnership with a country like Denmark makes great sense.
When it comes to the development of cities, it’s clear that if you look at trends as a whole, [the population] is moving from the countryside to cities at an increased rate. I think the latest figures from UN Habitat and other global organisations is that almost half of the human population lives in cities. We have been going from 30-40% of the population to half, and the trajectory is pointing towards a world where most of the people are in cities.
There have been large movements in the Global South. In China, you have more than 70 cities with more than one million inhabitants, and many are newly constructed with poor quality of buildings that need to be retrofitted and rebuilt. In India, you have a growing middle-class population, and this has led to growth of new buildings in new cities or more modern buildings in new parts of the city. The same trend can be seen in the Gulf region. For a very long time, Dubai was home to most of the cranes in the world. In Africa, large cities that are already big, continue to grow. In Indonesia, we see a population in the process of moving Jakarta to a new island, because it is sinking.
Basically, in many places, the built-environment is not a done deal. We are at the beginning, not at the end. It’s only in older industrial countries in the West that the city structure is permanent. I would think the opportunities for both new buildings and retrofitting are very large, especially in warmer climates, where expertise is needed in challenging environments.
For us, in Denmark, it’s more about reverse engineering our experience with energy efficiency and insulation, and usinge and applying them in the UAE. Also, there would be solutions we need to develop from scratch, based on the circumstances and the physical environment.
It’s clear that cooling also has some attributes different from heating. [In Denmark], some companies are experimenting with district cooling, but most are district heating, with a lot of combined power and heat plants. Also, some of them are doing this with garbage waste disposal and heat and power. With the more recent climate law, because of the move towards circular economy, we are now looking at recycling and reusing our waste rather than incinerating it.
What can further drive the development of expertise and solutions in the sustainability arena in a country?
A combination of energy pricing and embedding efficiency in building codes and regulation by central and local governments are key here. The building owner and operator might not be interested in building more efficiently because of the perceived cost, and they will try to defer the cost onto the tenants. That means rent goes up, bills go up, and they are not too happy either. That’s always a question for the less well off, that’s also the question of the fair and equitable distribution of the cost and benefit, [[when it comes to implementing sustainable solutions.].
In Denmark, people have been investing in energy efficiency because of energy cost and due to strict regulation since the 1970’s. Because of the cost of energy, there are huge paybacks at a shorter time.
In what ways can the public sector in the GCC region incentivise sustainability initiatives in the built-environment, both in terms of introducing retrofit targets and also ensuring new buildings adhere to higher energy- efficiency goals?
For one, I would say that educating the general public is extremely important, in terms of the cost, economy, sustainability and potential social benefits.
The very practical education of engineers and economists, integrating energy efficiency into curricula in the built-environment, so that you have your own skilled engineers and technicians ¨to operate systems, do the buildings and learn from it. It is a mentality and way of thinking. We have done it for the last 50 or more years; we didn’t do it before that. It took us a long time and heavy regulation, strong incentives and a lot of private discussion among government and private sector and institutions of higher education to get that sector to operate in an efficient and integrated way. I would encourage public policy makers to think through different dimensions of how to establish a cluster of knowledge and expertise. The young students of today will be the leaders of tomorrow, and they have to make it work 10-15 years down the road.