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of this is to assist our customers in making the right decision when selecting the correct heating or cooling product to meet their needs.
As a blue chip manufacturer we are continually looking at
ways to develop and improve our products and procedures, provide accurate performance data and comply with the latest legislation. Future challenges for the industry have been well documented with skill shortages acknowledged to be at a dangerous level and technological development moving at such a rapid pace that we believe there is an urgent need to address these issues while looking at the opportunities the industry can provide in the process.
ViewPoint H
Better networking for carbon reduction
eat networks have the potential to make a significant contribution to the UK’s carbon reduction strategy – and ICOM members have
A recent prestigious project involved the installation of Panther fan coil units in the new global operating headquarters of the SKA (Square Kilometre Array), the world’s largest radio telescope, at Jodrell Bank, Cheshire
a key role to play. Ross Anderson of ICOM explains In 2017 the Department for Business, Energy and Industrial Strategy (BEIS) noted: “Heat networks form an important part of our plan to reduce carbon and cut heating bills for customers (domestic and commercial). More recently BEIS has launched a £320 million Heat Networks Investment Project (HNIP) which will offer grants and loans to both the public and private sectors in England and Wales, for networks serving two or more buildings. Heat networks are made up of a number of products which work together to form the overall system. ICOM members supply a selection of these and are concerned that the design of the system is such that they operate as efficiently as possible. ICOM is a division of the Energy and Utilities Alliance and within that
organisation are three further divisions involved in heat networks. These are the Heating and Hot Water Industry Council (HHIC), the Hot Water Association (HWA) and Utilities Network (UN). Between them, they supply heating plant, pipework, valves, heat interface units (HIUs) and metering. It therefore makes sense to have a shared voice for heat networks and this has been addressed by a new division of EUA, designated the Manufacturers of Equipment of Heat Networks Association (MEHNA). This new association will be representing the product manufacturers in discussions on regulations and standards. It is important to note that MEHNA is only looking after the product design and operation and is working closely with CIBSE and ADE, which are concerned with the design and operation of heat networks as whole systems. Most heat networks being installed in the UK use a central plant room, often using a combination of heat sources that include CHP, gas, oil or biomass boilers, heat pumps and solar thermal. Where a mix of heat sources is in use the design should account for the differing performance characteristics of each type of plant and seek to optimise each. Care must also be taken to ensure that none of the plant is oversized.
Space heating and domestic hot water are usually controlled and Part of the Dunham Bush range is the Helios air cooled chiller
metered by HIUs. Where several buildings are involved there may also be variation between the heating systems in each building, necessitating a sub-station (heat transfer station) in each building connected to the network. A key benefit of using central energy centres in this way is that new,
low carbon heat sources can be introduced relatively easily in the future without disruption to the spaces being heated. In some locations, energy centres may also be able to take advantage of nearby waste energy sources from industry or waste incineration. Centralisation of heat sources also simplifies routine maintenance,
compared to accessing individual boilers in each space/apartment. Given all of the factors considered above, it is clear every aspect of heat networks, from central plant through to HIUs in each space, must be considered and optimised in the design. This reinforces the important role that ICOM and MEHNA members can play in delivering the UK’s energy and carbon requirements.
To support the expansion of chiller production Dunham Bush has constructed a new testing facility at its Havant factory
John Barker
www.heatingandventilating.net ICOM Energy Association ICOM December 2018 11
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