HEATING, VENTILATION & AIR CONDITIONING ELECTRIFICATION: the key to decarbonising industry?


safely. Qualities of electric heat exchangers and electric process heaters have seen numerous innovations and improvements over the past decade, such as enhanced fluid dynamics, Continuous Helical Flow Technology and higher watt densities, which contribute to a heater with a smaller footprint, less fouling and greater safety features. Enhanced fluid dynamics heat


exchangers are engineered for advanced flow throughout the system, without compromising the integrity of the heating elements, media being heated and vessel, which provides significantly improved heat transfer rates and consistent performance across the vessel. Some heat exchanger designs have


dead zones where hot spots can occur, which exacerbates the coking process, leading to fouling and the need for further maintenance. Continuous Helical Flow Technology offers ultra-high heat transfer rates with minimal fluid bypass, eliminating these dead zones and contributing to a smaller footprint. Furthermore, higher watt densities


Volker Metzger, applied thermal expert for Europe at


Watlow, explores the role of electric heating technologies in decarbonising industry


G


overnments and industry leaders are taking huge steps to meet climate


change goals, especially with regards to decarbonisation. According to the We Mean Business Coalition, over 700 companies have made far-reaching climate commitments, including many big players in the oil and gas industry. The pressure to address climate change


does not come from one segment of the population, or from one international agreement. This means that even if a driver for change such as The Paris Agreement were to disappear, there would still be significant pressure to decarbonise, therefore larger capital investments in electrification and decarbonisation are still completely justified. The event that caused many energy


companies to consider decarbonisation strategies more seriously was the 2015 Paris Climate Conference, organised by the United Nations Framework Convention on Climate Change (UNFCCC). This led to a broad consensus about climate change and what needed to be done to combat it.


The UNFCCC parties agreed that, to avoid the most catastrophic effects of climate change, the increase in global average temperature would need to be kept to less than two degrees Celsius above pre-industrial levels. The conference resulted in the ‘Paris Agreement,’ adopted by all UNFCCC parties, which was a first legally binding global climate agreement of its kind.


THE ROLE OF ELECTRIC HEAT EXCHANGERS Electrification of industrial processes is one of the key strategic pillars for addressing climate change concerns. Many industries use gas-fired heaters, but we’re seeing a gradual shift to large electric heat exchangers. The challenge, however, is that electric heaters need to be able to accommodate the larger wattage and amperage requirements of these processes, which must be balanced with another challenge – control. Adequate control of the heater is needed to ensure that processes can be performed


30 ENERGY MANAGEMENT - Summer 2021


When selecting an electric heater manufacturer in the process of electrifying your processes, it’s crucial to ensure the company can provide safe and reliable heating solutions that contribute towards a greener footprint


incorporated into electric heat exchangers allow for designs that take advantage of increased heat flux. This can help to make processes more efficient and less costly while still meeting critical temperature requirements, reducing overall footprint and providing a safer operation.


RELIABLE SOLUTIONS When selecting an electric heater manufacturer in the process of electrifying your processes, it’s crucial to ensure the company can provide safe and reliable heating solutions that contribute towards a greener footprint. With over a century of experience developing, testing and validating electric heat exchanger designs, Watlow’s HELIMAX heat exchanger uses these innovations to improve performance, heater life and minimise carbon footprint, allowing for reduced maintenance intervals, leading to increased productivity. Although progress is being made


towards decarbonising energy processing, there is still a long way to go. Switching to electric heat exchanges with advanced fluid dynamics, Continuous Helical Flow Technology and higher watt densities, can aid the journey of electrification and decarbonisation much more efficiently.


Watlow www.watlow.com www.energymanagementmag.co.uk


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