A Burner Management Unit (BMU) is installed between the thermostat and burner valve. The unit alters the firing pattern of the boiler creating fewer but slightly longer burn periods. The overall goal is to reduce the amount of time the boiler is burning.
The BMU is designed to work specifically with gas or oil boilers, both atmospheric and with forced draught burners. It is not suitable for wall hung or low water content boilers. Generally a floor standing boiler greater than 50 kW will be suitable. It does not affect the operation of the Building Management System (BMS), nor does the BMS impact on the BMU.
The BMU uniquely proves its savings in two ways:
Firstly, it is the only energy saving product whose performance has been independently certified by the Building Research Establishment – Certificate CFP 348. Proved through extensive laboratory tests, the “BRE” tick is unique to the Burner Management Unit.
Secondly, the BMU is designed to take itself in and out of circuit every 50 boiler cycles. It then compares the fuel consumption when it is in and out of circuit and calculates a “Savings Report”.
These reports are accessed from a lap-top or PC and are an excellent way of proving the savings and displaying them for reporting purposes.
It is often found that the majority of plant-rooms do not have their valves or fittings lagged due to their awkward shape. Those that have, tend to have used expensive rigid metal-clad insulation systems which are frequently found discarded on the floor of the plant-room after maintenance as they are difficult to re-fit. Valve Wrap on the other hand is flexible, robust and effective insulation that can cover fittings of any shape.
Valve Wrap insulation prevents heat escaping at 80°C and produces a surface temperature of 25°C. The standard Valve Wrap is suitable for temperatures up to 200°C but can be adapted for temperatures up to 400°C. Each cover is designed and manufactured to the highest specification and conforms to BS 5422.
Valve Wrap covers are:
The standard product will deal with all hot and cold systems within a conventional plant room where temperatures do not exceed 200°C. Special wraps can be assembled for specific industries and particular applications.
A Green Solution For Business
As companies around the world are urged to cut energy consumption and curb CO2 emissions, green is increasingly the future of business.
A green solution for the food and beverage industries has now arrived in the shape of the EndoCube. Invented by British engineers and patented globally, the EndoCube has been widely tested in-house and by independent organisations, and has been proven to reduce energy consumption by up to 33 per cent.
This neat microcrystalline wax cube is a revolution in refrigeration. Easily fitted onto a thermostat sensor, it changes how fridges and freezers work by mimicking food. Rather than respond to fluctuating air temperature, the EndoCube makes refrigeration units read food temperature only.
Refrigeration units work in a series of cycles, monitoring air temperature in order to decide when to switch on and off. But air temperature rises faster than the temperature of food, so refrigeration units work harder than necessary.
Fit an EndoCube and refrigeration cycles are less frequent and last longer, while food temperature is kept constant. The benefits include lower electricity bills, reduced CO2 emissions, a longer lifespan for equipment, more accurate food temperature and potentially less noise pollution.
The EndoCube is being installed, with superb results, in various places including, leading Catering Companies Supermarkets, Restaurants and Hotels worldwide.
The development of LED lighting has provided a new breakthrough in design and energy saving. LED being very small, can be used in many areas where normal lighting is not possible. A LED that consumes 3 watts can give the equivalent of 20w of light. Creating very little heat.
The primary benefits of LED based lighting are energy efficiency, long life, minimal maintenance and reduced air conditioning requirement to property areas. Our products come in a multiple of ranges from two globally known brands and meet all specifications. They are cool, warm or daylight white.
Comparing with traditional lighting, our LED lighting saves between 50% – 90% on electricity costs. They have a lifespan up to 15 times longer than traditional lamps. As well as being Eco-friendly, no UV or IR, lead and mercury free with zero air pollution.
Induction Lighting is a hybrid fluorescent lamp technology that generates light by high frequency transmission of energy combined into a gas discharge.
As with conventional fluorescent lamps, varying the composition of the phosphors coated onto the inside of induction lamps, allows for models with different colour temperatures. Unlike conventional fluorescent technology there are no failures caused by filament erosion, vibration, or seal breach.
External induction lamps have magnets wrapped around the tube that produce a very strong magnetic field that travels through the glass and excites the mercury atoms in the interior of the lamp which are provided by a pellet amalgam (a solid form of mercury). The mercury atomsemit UV light and, just as in a fluorescent tube, the UV light is converted into visible light by the phosphor coating on the inside of the tube.
Internal induction Lamps are a light bulb shaped glass lamp with a test-tube like central cavity, are coated with phosphors on the interior, filled with inert gas and have a pellet of mercury amalgam. The induction coil is wound around a ferrite shaft which is inserted into the central cavity. The inductor is excited by high frquency energy provided by an external electronic ballast causing a magnetic field to penetrate the glass and excit e the mercury atoms which emit UV light that is converted to visible light by the phosphor coating.
In the internal inductor lamps, the heat generated by the induction coil is emitted inside the lamp body and must cool by conduction to a heat-sink at the lamp base, and by radiation through the glass walls. Internal induction lamps tend to have a shorter life-span than external inductor types due to higher internal operating temperatures. However, the internal inductor type looks more like a conventional light bulb than external inductor type lamps which may be more appealing in some applications.
Brighter, More Visible Light
The difference between a 400w HID lamp which is then replaced with a 200w induction lamp.
Underground car park
Lighting has been changed from 150w HPS lamp to 80w Induction lamp.
Street lighting installation
Long Life Performance – Up to 100,000 hours of light, no electrodes or filaments that need replacing, no maintenance cost and minimal re-lamping costs.
Superior Energy Saving – Under the same brightness, reduce electricity cost by up to 40%, 30% when compared to HID lamp and flourescent lamp respectively.
Low Heat Generating – Operating temperature is around 80 degrees Celcius, directly reduces air-conditioning costs.
High Lighting Efficiency – Scotopic efficacy of around 80-90 Lm/W, photopic efficacy of 150 Lm/W.
High Colour Rendering Index (CRI) – With a colour rendering index of 80 or more induction lighting is suitable in any environment.
Various Colour Temperatures – 2700K, 3500K, 5000K, 6500K.
Low Lumen Depreciation Rate – Only < 5% @ 2000 hours and around 35% @ 100,000 hours.
High Power Factor Ballast – λ> 0.98.
Instant on/off & restrike – No waiting time to start and re-strike.
No Flicker – High frequency operation (210 kHz) creates a comfortable light source for users to reduce eye strain, stress and no glare.
Excellent Temperature Tolerance – Reliable ignition even at -40 degrees Celcius.
Low Total Harmonic Distortion (THD) – < 7%, certified by International Class C Standard.7
Environmentally Friendly – Amalgam content < 0.25mg.
Dimmable – Dimmable from 30% to 100%.
Silent Operation – Very quiet operation, no humming or buzzing.
Electromagnetic Compatibility (EMC) – Meets all international standards, including CE.
A variable speed drive is a piece of equipment that regulates the speed and rotational force, or torque output, of an electric motor.
The background and technology
There are millions of motors in use in industry and offices around the world. They operate sewage and irrigation pumps, milking machines and ski lifts, paper machines and power-plant fans, sawmill conveyors and hospital ventilation systems, to name just a few examples.
In fact, more than 65 percent of industrial electrical energy is consumed by motors.
In many cases, motors are controlled by means of a valve that regulates the flow of fuel or a vane that controls the airflow while the speed of the motor itself remains unchanged. These and other methods, such as using two-speed motors or controlling them by switching on or off, are inefficient from an energy point of view.
One of the main reasons why drives save energy is because they can change the speed of an electrical motor by controlling the power that is fed into the machine.
Drives and energy efficiency
ABB estimates that its drives in operation worldwide save about 115 million megawatt hours of electricity every year, the equivalent of 14 nuclear reactors.
That also amounts to a reduction of carbon dioxide emissions by 97 million tons per year, more than the annual emissions of Finland.
Using a drive with a 30 kilowatt (kW) motor running 5,000 hours a year to control the air flow in a ventilation system brings an annual saving of 76,500 kW hours of electricity compared with regulating the flow rate by adjusting a damper.
The saving is 51,000 kW hours per year compared with modulating the fans on or off and 52,500 kW hours versus the use of a two-speed motor.
The energy savings achieved can result in the investment to install drives being recovered in as little as a few months. For many pump and fan applications expenditure is often recouped in less than a year.
Still, less than 10 percent of the motors in use worldwide are equipped with drives.
Drives come in many different sizes and are typically encased in boxes that can be as small as a milk carton or as big as a wardrobe, depending on the size of the motor or motors they regulate.
Advanced voltage optimisation technology allows most of the electrical equipment, lights, pumps, motors, air-conditioning, refrigeration etc. to operate at optimum capacity whilst consuming less energy.
Main Features of a voltage optimisation are:
Combined Heat and Power (CHP) / Cogeneration Combined Heat and power (CHP) integrates the productions of usable heat and power (electricity) in one single, very efficient process. The CHP captures then utilises the heat production by generating electricity. Everyday electricity consumption by power stations is around 37% efficient. This indicates there is a vast potential source of energy is simply released into the atmosphere as a by-product. The CHP is designed and can harness this power.
CHP is an energy efficient technology, which provides a means to substantially reduce your energy consumption without compromising the quality and reliability of the energy supplier to consumers. Therefore provides a cost effective means of generating lower carbon and renewable energy.
The CHP provide a range of beneficial advantages:
The CHP systems today are based predominantly upon existing, proven power generation technologies. This use and adaption of existing technology not only contributes to the relatively of low cost of CHP. But ensures that it is proven and reliable technology, capable of delivering an immediate impact of transforming your energy systems.
CHP provides direct benefits for the following:
The beneficial outcomes of CHP:
This UK-designed and built solution is the first in the world to combine three different renewable energy solutions into a single efficient and reliable system able to meet the heating and hot water requirements of well-insulated homes.
In order to explain the great efficiencies the Hybrid Solar Solution provides in both financial and environmental terms we must first take a step back and look at the three separate technologies used.
These electricity-producing panels have been available for several years and with the introduction of Feed in Tariffs are a very cost effective way of producing electricity and generating revenue. One little-mentioned drawback with PV is that as the surface temperature of the panel rises, the output drops.
Traditional solar thermal installations collect the sun’s heat and convert this into hot water, typically meeting a property’s summer hot water requirements. A major drawback is that in times of little or no sun there is little or no hot water.
Heat pump technology has been available for many years and installations of both ground-source and air-source systems are meeting heating demands all over the world. However, whilst these devices are potential greener than burning fossil fuels, they do still use large amounts of electricity.
The Hybrid Solar Solution combines all three of the above technologies in such a way that the aggregate system outputs are far greater than those produced by the components individually.
How? PV, as already mentioned, has a linear drop-off in efficiency as the surface temperature of the panel rises. Given that PV panels are typically black and mounted in such a way as to get maximum exposure to the sun, this rise in panel temperature is inevitable. PV panels typically lose efficiency of up to 0.5% per degree rise in panel temperature. However the Hybrid Solar Solution combines both the PV and Thermal elements onto a single panel – a photovoltaic thermal (or PV-T) collector. This has two main advantages; firstly, by drawing heat away from the panel the electrical output is maintained at a higher level for a longer period, and secondly, with the PV and Thermal elements combined on a single panel less roof area is required, allowing for greater outputs on equivalent roof space.
The output of solar thermal is dependent on sunlight so for half the day and most of the winter a solar thermal collector operates very inefficiently and the heat collected is often at a much lower temperature than that required for use in a house. With the integration of the heat pump, the output of the thermal collector is no longer directly related to the intensity of the sun and therefore a constant output temperature can be achieved irrespective of solar input.
This has two major advantages, heat can be collected from the panel at night as the surface of the panel will act as a thermal absorber rather than solar collector, and the temperature of water in the house can be set and achieved irrespective of levels of irradiance (sunshine).
The efficiency of a heat pump is normally shown as a COP (Coefficient of Performance). This is a simple calculation of electrical energy input versus thermal energy output. However, the COP of a heat pump changes across the seasons as the result of the seasonal drop in source temperature. In other words, as the input temperature of the source reduces (colder ambient ground or air conditions), and the difference between latent heat input and upgraded heat output rises, so the COP falls. Air-source heat pumps are most susceptible to this; when the ambient temperature drops to below freezing the COP will drop off dramatically. Ground source heat pumps are more stable and do not have such a wide spread of COP, due to the relative constancy of the energy source.
The Hybrid Solar Solution maximises the advantages of air-source (namely low cost) without the downside of extremely inefficient performance in freezing conditions. The Hybrid Solar Solution collects its heat from the PV-T panels, so even in winter, under direct sunlight, the panels will be providing an input temperature far greater than the ambient air temperature, and generally well above ground-source, particularly at the end of a harsh heating season when the ground may well have frozen. This means that the operating COP of the Hybrid Solution surpasses those of other domestic heat pump technologies.
The Hybrid Solar Solution uses a Volther PowerVolt Hybrid PV-T collector, which was the first MCS accredited PVT panel available in the UK (along with its sister product PowerTherm), providing the owner with revenue from both the Feed In Tariff and Renewable Heat Incentive systems for its respective electrical and thermal production.
The PowerVolt collector has been developed to maximise the electrical return of the panel, making it an enhanced PV collector, which also produces a reasonable amount of heat production in the summer, even without the heatpump.
The peak output for the Volther PowerVolt panel is 200/460 watts electrical/thermal respectively.When correctly installed the collector will produce more than 15% more electricity than conventional PV. When the heat pump is running the electrical output may increase by a further 25% under certain weather conditions.
The Hybrid Solar Solution heat pump is a British-designed and manufactured unit available in multiple sizes all of which utilise Copeland scroll compressors. Through integration of the system with a PV-T array, and with a nominal input temperature of 20°C, the actual output of the heat pump will increase by approximately 33% relative to its nominal listed output. In other words, a heat pump with a nominal output of 4.5 KW will actually deliver a load (or duty) of 6 KW.
50C Leaving Temperatures
|Water Temperature (cold side)||Duty (kW)|
* The COPs cited above are for the heat pump in its most basic form. Every unit we sell will incorporate an electricity frequency regulation unit which will improve efficiency by about 12% – we are currently conducting further lab-testing to fully substantiate this.
Each unit will also have an intelligent control system to optimise when and how the heat pump operates. This will further improve operational COP and reduce running costs.
Both of these efficiency measures, and others we are looking at, will be available on a retro-fit basis for customers who don’t wish to wait the few weeks required to finalise the specifications.
In order to maximise the system efficiency the Hybrid Solar Solution control system works to pull heat from the array to the extent possible during daylight hours when minimal additional energy is required to recover it. With the use of appropriate heat storage a full 24 hours load can be covered. Clearly there will be times when the heating demand for a building cannot be met by the system alone; to cater for these rare occasions, and also to annul the risk of Legionnaires Disease, an immersion heater is included in the heating circuit.
The Hybrid Solar Solution is able to produce more electricity than PV, more reliable hot water than solar thermal, and heating at a better COP than most conventional heat pumps – all with little or no CO2 emissions.
Current projections suggest that a PV-T array will produce sufficient electricity over the course of the year to cover the demand of the heat pump, which will meet a reasonably insulated building’s total annual heating and hot water requirements.Further to this the incorporation of a solar thermally charged ground loop increases the efficiency of the system to a point that it outperforms any heat pump based system.
This is the only integrated heating solution available on the market from which the owner can benefit from Feed In Tariff revenues whilst meeting the heating requirements of a building.
For high Code (5 & 6) new build developments, the Hybrid Solar Solution will deliver significantly more electricity than is required to power the heat pump and will contribute up to 50% of a house’s annual electricity requirements.
Advanced window films installed on to your existing glazing offer an effective and long lasting solution to many problems including excessive solar heat, glare, energy consumption, fading, privacy, insulation and much more.
Window films are the simple, cost effective way of enhancing the performance of glass. Tried and tested in the market place for decades, window films are ideal for countless situations, from the smallest domestic installation to the largest commercial contract.
Energy saving films can provide a rapid payback solution when considering options for carbon mitigation.
Our Window Films provide:
All potential projects will require a visit from one of our surveyors to assess your requirements and situation before we recommend a particular solution.
Installation would subsequently be carried out by our highly experienced team.
ECF solar films reject up to 79% of the sun’s energy, reducing internal temperatures by up to 10 degrees, whilst still allowing clear vision out of a building. Further more, energy costs can be reduced significantly by the reduced need for air-conditioning in the summer and heating in the winter.
ECF solar films can reduce glare by up to 86% reducing the incidence of eye strain for occupants. ECF solar films can be used to enhance a buildings appearance with colours to match almost any architectural style or neutrals that remain almost undetectable
Solar films block around 99% of UV light significantly reducing the incidence of fading
Glass is usually the weakest point of any building, vulnerable to burglars and vandals, and even storm damage or terrorism. Tough and tested film creates an invisible barrier holding glass in place, retaining glass within and minimizing the hazards and damage caused by flying glass.
All ECF security window films meet the requirements laid out in GGF recommendation document section 5. to standards ISO 16933, together with regulation 14 of the Heath and Safety at Work Regulations. EN 12600 defines the standards for upgrading existing glazing.