2016 October

 Lord Redesdale, Member of the House of Lords and CEO of The Energy Managers Association, organisers of EMEX, looks at ways to Future Proof your business. 

Demand-side engagement with energy can only lower costs. 

Kensa, space heating, GSHP, ground source heat pumps, renewable energy

With heating bills of up to £500 a month for electric panel convector heaters for 11 homes on a estate in Fressingfield, Suffolk, Kensa ground-source heat-pump systems have been installed following the housing provider Flagship gaining unanimous support for its plans at a consultation meeting with residents.

Stokvis Energy Systems, solar thermal, renewable energy

Energy costs in a typical sports centre are second only to labour, accounting for as much as 30% of total running costs. Paul Sands of Stokvis Energy Systems explains how solar-thermal water heating can help cut energy usage and fuel bills in the leisure sector.

Gilberts, natural ventilation, renewable energy

Gilberts (Blackpool) offers a solution to maximise the benefits of natural ventilation in rooms such as IT suites and science laboratories in schools. Particular issues in such areas include heat from IT equipment and CO2 from Bunsen burners. Gilberts’ solution is its Mistrale Fusion (MFS) natural-ventilation system with the inclusion of enhanced and boost options.

Oventrop, solar thermal, DHW, renewable energy

Oventrop has been heavily involved with Arup, Interserve and NG Bailey to design (using OVSOL and TSOL software), supply and install seven complete solar-thermal systems to preheat domestic hot water for the new Jaguar Land Rover i54 facility — a £500 million engine-manufacturing centre in Wolverhampton.

Lochinvar, heat pumps, space heating, renewable energy

The technical and economic arguments in favour of heat pumps are becoming increasingly persuasive, according to David Pepper of Lochinvar.

Water-source heat pumps drawing heat from a stream have been installed to replace two existing boilers serving Schaffer House in Crawley. Mitie, which is Crawley Borough Council’s housing-repair contractor, worked with Baystar, building-services engineers specialising in sustainable energy solutions.

NIBE, heat pumps, GSHP, ground source heat pump, renewable energy

An auction House in Northumberland is expecting to achieve £862 000 in energy savings and commercial Renewable Heat Incentive payments over the next 20 years after installing solar PV panels and a NIBE ground-source heat-pump system. The savings are expected to be more than double the original investment, with a return on investment of 236%.

Lochinvar, heat pump, gas fired heat pump, absorption heat pump, space heating, renewable energy

Renewable energy for a new care home in Derbyshire that specialises in dementia is provided by an integrated heating and hot-water system using a gas absorption heat pump from Lochinvar. Solar PV panels were originally considered for the Callywhite Home, but on inspection it was decided that an Optimus gas absorption heat pump was more appropriate for this type of project. It also met planning requirements at a considerably lower cost that solar PV, even taking into account the potential solar feed-in tariff.

Schwank, heat pumps, absorption heat pump, gas fired heat pump, renewable energy

Schwank now offers high-efficiency gas heat pumps to deliver heating and cooling for industrial and commercial buildings. They are available through specialist distributor Oceanair. They are low on CO2 emissions and below the required standard for NOx emissions.

Stokvis, solar thermal, DHW, renewable energy

This solar-thermal installation at Birmingham International railway station is being assessed as a potential pilot for a wider roll out of renewable energy across facilities operated by Network Rail and train operator Virgin trains. The installation comprises 10 evacuated-tube collectors and pre-heats incoming mains water at a typical 10°C to around 35°C, although it is expected to reach 55 to 65°C in high summer.

CIBSE, heat pumps, surface water, renewable energy

Surface water as a potential heat source for heat pumps abounds. Phil Jones would like to see it much more widely exploited.

Rinnai, DHW, renewable energy

Rinnai’s continuous-flow water-heating solutions can work with renewable-energy sources such as solar-thermal and air-source heat pumps. The concept is that the water heater tops up the temperature of stored water heated using renewable energy — but only when required.

BSRIA, renewable energy

BSRIA’s Krystyna Dawson looks back over the last few years and wonders what the future is for renewable energy in the UK.

Finn Geotherm, heat pump, GSHP, space heating, DHW

The ground-source heat-pump system installation to provide heating for the new premises of an expanding veterinary practice in Norfolk was specified and installed by Finn Geotherm. Hannah Kelly, owner of Wood Farm Vets, started the practice in 2014 to care for large and small animals. It originally operated from her farmhouse home in south Norfolk, but rapidly outgrew the premises, to the extent of the lounge becoming the waiting room.

BESA, Building Engineering Services Association, solar, biomass, energy storage, renewable energy

Energy-storage technology is starting to transform the way buildings operate and opens up the possibility of a 100% renewable electricity system, says Tim Rook of BESA.

REMS, potable water, commissioning, pipes, pipework

Steven Mesher of REMS (UK) looks at the requirement for the avoidance/ removal of bacterial contamination during the commissioning of potable-water installations and how it impacts on the installer.

Banninger, press fitting, push fitting, pipes, pipework

With so many press and push fit products on the market, it can be difficult to know which to choose. Bill Barlow of Conex Bänninger offers some guidance.

Sanha, press fittings, pipes, pipework

Sanha press-fit technology for pipes has been used by Woodtek Energy, a leading manufacture of drying machines for wood chips, in its biomass heating systems. The Nirosan press system has consistently saved substantial time and labour for Woodtek, and director and co-founder Stuart Jones explains, ‘The labour savings are significant. What used to take five days in traditional piping systems now only takes two with the Sanha press system.’

British Pump Manufacturers Association, BPMA, pumps, pipes, pipework

Pumps that do not comply with UK and European standards entering the UK are a major concern to the pump industry, and their use is fraught with risk. Peter Reynolds, president of the British Pump Manufacturers Association, explains what is being done to tackle the problem.

Rinnai, DHW, pipes, pipework

Rinnai’s Infinity Plus Cascade system offers a solution for providing hot water in larger commercial premises. These custom-made solutions are based on modules incorporating 1500 or 1200 condensing units with Rinnai’s newly developed common-heating flue-system technology. Any number of modules can be manifolded together.

Elco, space heating, HIU, district heating, heat network, pipes, pipework

Residents of luxury apartments at The Franklin in Bournville, Birmingham have their heating and hot water provided by Nexus Futura IS heat interface units (HIUs) from Elco Heating Solutions. 79 HIUs have been installed as part of a network heating systems. They are connected to three Elco R603 floor-standing boilers in a centralised plant room.

Francis Pegler, Pegler Yorkshire, taps. pipes, pipework

In response to consumer trends, Francis Pegler offers a range of brushed-nickel taps. Mike Johnson, washroom market manager for Pegler Yorkshire, explains, ‘More and more consumers are wanting to step away from the high shine that chrome offers and prefer a more muted style that perfectly complements cookware and kitchen appliances often found in brushed textures.’

Grundfos Pumps, pipes, pipework

Grundfos can the can

06 October, 2016

When a leading UK manufacturer of beverage cans wanted to investigate the potential for saving energy on its installed pumps systems, it approached Grundfos to undertake an energy check. It focused on the washing lines, and a comprehensive report was produced, as a result of which a number of pumps were replaced.

Traditionally, vast quantities of clean, potable water are discharged to drain during the dynamic flushing procedure that is part of the pre-commission cleaning process of a closed pipework system. Up to 20 times the system volume may be required, which has to be discharged to drain.

RDM, Resource Data Management, TouchXL

TouchXL, the newest member of the touchscreen family, is now available from Resource Data Management (RDM). Model-dependent TouchXL provides an additional front-end display to either a DMTouch or Intuitive TDB controller, with fibre and Ethernet networking options available.

Durapipe, BIM, building information modelling, pipes , plastic pipes

Durapipe UK reports that the use of its BIM models has increased substantially in 2016. Analysing the number of BIM downloads for its Superflo ABS pipework system for chilled water for the first six months of this year showed a 50% increase on the same period last year.

Xylem, Lowara, BIM, building information modelling, pumps

Xylem has updated its Lowara CAD centre with a new set of BIM (building information modelling) files cover the Lowara e-NSC heavy-duty end-suction pump range. The BIM files are available in dxf, stp and rfa format; they can be previewed in 3D on all Wi-Fi enabled devices via a standard Internet browser.

Beckhoff Automation has introduced two CIBSE CPD-accredited training modules that focus on important aspect of networking and controls communications protocols. The courses focus on aspects of networking that can help to achieve energy-efficient building operation in the long term.

The thermal performance of the T22 Compact radiator from QRL Radiator Group has been granted ‘verified’ status by the Energy Saving Trust. — marking the creation of a new and dedicated radiator category for this efficiency organisation. The verification compared the T22 with similar products from competitors.

Elco, HIU, heat interface unit, space heating, network heating, district heating

WRAS approval has been granted to Nexus Futura Bitherm heat interface units from Elco. They are suitable for a wide range of residential applications. They are indirect wall-mounted modules with a heating output of 19 kW and hot water up to 70 kW.

Cool-Therm, Tonon, chiller, air conditioning

Cool-Therm stocks popular models of chiller that can be ordered and delivered to site in a matter of days rather than months. Current Tonon chillers in stock are listed on Cool-Therm’s web site, permitting ordering for immediate despatch and delivery to a site within days. Tonon chillers are particularly suitable for applications requiring low sound levels, such as hospitals and educational settings.

Condair’s GS condensing gas-fired steam humidifier recovers heat from exhaust gases to preheat the incoming water supply (pictured) to improve energy efficiency. The lower flue-gas temperature also allows plastic, rather than stainless-steel, flues to be used — reducing installation costs. Outputs range from 23 to 272 kg/h. Recovering heat from the flue gases to preheat incoming cold water improves humidity control compared to non-condensing gas humidifiers as the steam output remains more consistent. Compared with electric steam humidifiers, a condensing gas-fired unit has around 60% lower energy costs and will pay for itself within a year or two. The touchscreen controller shows all operating parameters. BMS connectivity is included as standard via Modbus, BACnetIP and BACnet MSTP (slave).

Condair’s GS condensing gas-fired steam humidifier recovers heat from exhaust gases to preheat the incoming water supply (pictured) to improve energy efficiency. The lower flue-gas temperature also allows plastic, rather than stainless-steel, flues to be used — reducing installation costs. Outputs range from 23 to 272 kg/h.

Veltem, air distribution, perforated ceiling,grille, diffuser

Veltem’s Hidden Diffuser (HD) air terminal device incorporates the standard ceiling manufacturer’s suspended ceiling tile as its faceplace, typically using 1.8 mm holes with 20% free area or 2.2 mm holes with 25% free area. It is therefore almost invisible once installed.

Nittan, fire alarm, fire panel

Fire-alarm control panel

06 October, 2016

Nittan Europe’s Evolution 1 range of fire-alarm control panels is fully compatible with the Evolution range of detect and alarm devices. Compliant with BS EN54 parts 2 and 5, these panels have separate menus for the user and installer, with an LCD touchscreen display.

Ellis, cable cleat, cable cleats

Ellis has launched an all-plastic trefoil cable cleat for smaller electrical cables. Called Trident, these polymeric cleats will be available in six sizes from 24 to 54 mm. Sizes from 34 to 41 mm are already available.

Martindale, electrical safety, safety locks, locking off devices

Martindale has introduced professional locking-off devices and kits for miniature circuit breakers and fuse holders. They provide simple and reliable solutions to ensure circuit breakers have been de-energised and properly isolated prior to maintenance and modifications of plant and equipment, in accordance with HSG85, the ‘Electricity at work regulations’.

ABB Elkay, DALI, lighting control

ABB Elkay’s easyDALi DALi-compliant lighting system can automatically detect DALi lighting ballasts during installation and commissioning. The system has been developed in response to demand from electrical installers for a simplified and dimmable DALi lighting system that can help compliance with Part L of the Building Regulations.

Hygromatik, humidification, humidifier, adiabatic. reverse osmosis

Combining HygroMatik’s HPS/LPS adiabatic humidifiers with the WaterLine RO (reverse-osmosis) system (pictured) to deliver clean water to these humidifiers ensures that only the cleanest air is delivered to the space. The WaterLine unit applies pressure to the water through a semi-permeable membrane, allowing only clean molecules through and leaving bacteria and contaminants behind. There is no need for biocide or chemical disinfectants.

Fire Design Solutions, smoke ventilation, fire safety

FDS returns to Nine Elms

06 October, 2016

Fire Design Solutions (FDS) is to supply, install and commission a number of its smoke ventilation systems for Merano Residences (right in picture) in the redevelopment area of Nine Elms of the south bank of the River Thames. Merano Residences will comprise 40 luxury apartments with two and three bedrooms. The first three floors will also house offices, a cafe and an underground car park. This is FDS’s fourth project at Nine Elms.

Geberit, Sanha, Fuel Storage Solutions, bunded, fuel storage

Fuel Storage Solutions (FSS) and Geberit have worked together to create a bespoke version of Mapress pipe. It is a bunded pressing solution for a data centre in London which required new bulk tanks, polishing systems and pipework, fully linking with the existing single-skin welded steel pipe systems.

Xylem, pumps, Lowara, pipes, pipework

Xylem’s extended Lowara e-series global range of pumps includes highly efficient in-line and end-suction pumps that exceed the 2015 European Ecodesign requirements of a minimum efficiency index (MEI) of no lower than 0.4. In many cases, e-series pumps have an MEI greater than 0.7. The range extension adds 29 in-line single and twin pumps, including models with stainless-steel and duplex bodies, more sizes and 60 Hz models. The updated series covers a new set of duty points, making it suitable for a wider range of HVAC and industrial applications.

Kingspan, insulation, pipes, pipework

Kingspan Kooltherm FM pipe insulation has been evaluated under the BRE’s Green Guide ratings table and methodology for pipe insulation. This new approach has been designed to provide a more accurate assessment of the environmental impact of pipe insulation in-situ. The FM pipe-insulation system received the highest summary ratings of A and A+.

Pump-systems course

06 October, 2016

The British Pump Manufacturers’ Association offers a one-day course dealing with pump systems. It examines the factors that should be considered when designing a pump system. It uses a combination of presentations and exercises in a practical approach to what is a complex subject.

Albion Valves, commissioning, balancing, pipes, pipework

When size matters

06 October, 2016

Faced with less and less space being available for piped services, how can designers respond. Paul Wightman of Albion Valves shares some ideas — ideas that can also improve the operation and response of those systems.

Belimo, actuator, valve, pipes, pipework

Belimo’s replacement actuators for globe valves have customisable parameters and are equipped with a universal valve neck and stem adapter. They can be installed quickly and easily on virtually all valves from manufacturers worldwide.

Viega press fittings are now available in the UK with SC-Contur technology for pipe connections from 12 to 108 mm. SC-Contur technology provides a flowpath within the fitting that leaks slightly if the fitting is inadvertently unpressed. Water will visibly escape from unpressed connections when the system pressure is between 1 and 6.5 bar. For dry testing with inert gas, a measurable drop in pressure will occur between 22 mbar and 3 bar.

In a busy commercial building, where heating, ventilation and air-conditioning (HVAC) systems are consistently in use, the performance and durability of the pipework connecting system components is paramount to ensure the system’s performance as well as for ensuring the occupant’s health and safety.  Exposed to a wide range of stresses, temperatures and pressures, steel tubes used within HVAC and building service applications need to meet specific requirements to ensure their reliability. For example, it is essential to take into account the fluid being conveyed, as this can often contribute to the deterioration of the tube in service. Extremes of acidity or alkalinity or high levels of oxygen within the system can result in corrosion. Furthermore, if high levels of calcium are present — often common in hard-water areas — build up and blockages within the pipework can occur. In such cases it is therefore essential to employ an appropriate fluid treatment in the pipework system. When considering the correct product for a HVAC application, the tube-manufacturing process is often ignored, with other factors such as the material specification or legislative compliance being considered more important. Yet the steel tube’s manufacturing process is actually vitally important in respect of its performance in service. Steel tubes used in building-services applications are normally ordered to BS EN10255, the successor to the old BS1387. However, whilst withdrawn in 2004, BS1387 is still commonly referenced, which can lead to procurement and compliance issues. Tubes to BS EN10255 can be produced by two notably different manufacturing processes — either hot-finished or cold-formed. Welded steel tubes produced in this way have markedly different physical properties which will affect their in-service performance, hence the importance of taking the manufacturing process into consideration.  Cold-formed tubes are produced from steel strip that is formed and welded at ambient temperature to produce a cylindrical tube shape. Whilst undergoing this process, the material hardens, due to the cold working and the welding process, resulting in internal stresses being induced in the tube. The main stress occurs in the region adjacent to the weld seam, often referred to as the heat-affected zone (HAZ). Within this region, the steel has a distorted gain structure, caused by the heat input of the welding operation. This makes it harder and less malleable, and any subsequent fabrication or manipulation during installation may further increase the internal stress level, resulting in a greater risk of cracking or of failing in service due to an increased vulnerability to corrosion.  Whilst the manufacturing process for hot-finished tubes may appear similar to that of cold formed, it includes one additional vital step that ensures the removal of any internal stresses. This involves induction or furnace heating of the tube to a very high temperature. As the temperature rises, the internal stresses in the steel are relaxed and the distorted grain structure of the heat-affected zone adjacent to the weld line is completely removed.  As such, hot-finished tube products offer 10 benefits over their cold-formed counterparts. • A more ordered and consistent microstructure • No internal stress that can promote cracking  • More consistent and reliable mechanical properties  • Improved structural integrity and ductility  • Improved and more consistent toughness  • A higher pressure integrity  • A greater factor of safety  • No loss of strength due to additional welding or heating  • An improved performance against corrosion  • The ability to be threaded, grooved or bent to tight radii without splitting, creasing or collapsing  Using the correct welded steel tube in building-services applications is therefore vital, and for this reason the better durability and reliability offered by hot-finished products should always be considered. Tata Steel’s Install Plus 235 brand, for example, provides a robust solution for such demanding conveyance applications. This multi-certified tube range ensures that each product is aligned with both the CE marking requirements of the Construction Products Regulations (CPR) and also the Pressure Equipment Directive (PED), by manufacturing to both BS EN10255 and BS EN10217 Part 2. It is important to note that only by requesting an BS EN10217 Part 2 product, can you guarantee that a hot-finished or ‘GH’ (Get Hot) steel tube will be supplied.  To highlight the importance of tube manufacturing and raise awareness of pipework related issues, Tata Steel, in collaboration with the School of Civil & Building Engineering at Loughborough University, has established the Building & Industrial Services Pipework Academy (BISPA). This supports the building and industrial services industry by offering training courses and CPD programmes focused on a range of industry issues, including tube specifications and the benefits of hot-finished products.  Therefore, when considering what tube to use for a building-services application, looking beyond the specification to the manufacturing process is strongly recommended. Remember, not all steel tubes are the same. Hot-finished steel tubes can provide an unparalleled level of reliability and durability within pipework systems, delivering safety and performance benefits as well as a longer life.  Stewart Jones is senior customer technical services field engineer for conveyance tubes at Tata Steel.

Some like it hot

06 October, 2016

Stewart Jones of Tata Steel discusses the benefits of hot-finished tubes over cold-formed alternatives in building service applications.

Daikin, Altherma, heat pumps, boiler, space heating, renewable energy

The first Daikin Altherma hybrid heat pump to be installed in the UK, in a family home in Wigan, has achieved impressive performance figures and significant benefits in running costs. The system combines a gas condensing combi boiler and an air-to-water heat pump to create an efficient domestic heating and hot-water system that is ideal for replacing gas-fired boilers. The system has a capacity of 27 kW for central heating and 33 kW for hot water. The outdoor heat-pump unit has an output of 5 kW. The system replaced a gas combi boiler.

Two wood-pellet boilers have been installed at the National Trust’s Nunnington Hall near York to replace an old an inefficient oil-fired heating system. The two 50 kW boilers were installed by re:heat of Alnwick as part of the National Trust’s environmental commitment to substantially reduce carbon emissions at its properties by switching to more renewable energy sources and deliver 50% of its energy from renewable sources by 2020.

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Manufacturer helps equip skills centre

Ideal Heating has helped to equip a new £500,000 green energy centre in Merseyside which is seeking to attract fresh talent into the heating industry.

Acoustic solutions suite with easy access to services at University of Birmingham

A suite of ceiling and wall acoustic solutions have been specified for The University of Birmingham’s new landmark Molecular Sciences building, which will provide a hub for research and academic work.