Greater Systems Security for Solar Energy

Rittal’s infrastructure solutions are playing a vital part in the development of renewable energy as solar energy generation expands into more extreme environments.

Decentralised energy generation, where power is generated both at home and in local communities, is growing in size and importance across the globe as fossil fuel resources dwindle.

Reliable infrastructure such as enclosures, power distribution and climate control systems help support the security of the energy generated by solar technology.

But as the focus for solar generation shifts to Asia and North and South America, there is a growing requirement for robust enclosure systems and reliable cooling techniques that can also be installed outdoors in marine environments (contamination from salt), in the desert (sand/dust) or in harsh industrial settings (smog) are needed to ensure safe operation.

At the recent Intersolar Europe 2015, Rittal showcased innovations from inverters, low-voltage switchgear to energy storage systems.

Among the key products in the range on display were Rittal’s TS 8 double-walled outdoor enclosures with liquid-based, high-performance cooling for central inverters, the new, energy-efficient Blue e+ series of cooling units for enclosure climate control, and DC busbars systems which are increasingly being deployed in converter buses, DC power backup and photovoltaics systems, as well as in energy storage technology.

Furthermore, the company’s “YourHome4Energy” is a modular system designed to meet all the infrastructure requirements of energy storage.

All this technological know-how is backed up by Rittal’s technical teams who can provide expert advice on design and planning systems infrastructure for extreme environments.

Further information at http://www.rittal.co.uk and www.friedhelm-loh-group.com

Rittal PR solar power 11_1211

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Rittal Therm 6.3 – updated thermal

To simplify the often time-consuming and complicated calculation of enclosure cooling and heating require-ments use Rittal’s Therm 6.3 software.

Input the dimensions and position of your panel, together with the heat loss of the equipment installed, the ambient temperature, your preferred internal temperature and details of the available power supply, you can then select a cooling or heating solution specific to your project requirements.

A user-friendly interface guides you step-by-step through the selection process and at the end of the calculation, you receive a detailed report that not only shows the selected product, but also the net heat transfer through the walls of the enclosure. In the case of cooling solutions, the internal temperature that would be reached without climate control.

All evaluations are based on the requirements of IEC/TR3 60890 890 AMD 1 and DIN 3168 for enclosure cooling units and so this useful tool also gives considerable peace of mind that suitable components have been chosen.

Enclosures can be selected from Rittal ranges or alternatively, the dimensions of bespoke cabinets can be entered manually. The heat dissipated by installed equipment can be input directly, calculated using actual measured enclosure internal and ambient temperatures or selected from a database of standard components.

Use an online version or download the offline version of Therm 6.3 from the Rittal website.

Rittal RiThermUD

Rittal Enclosures, Power Distribution, Climate Control, IT Infrastructure, 19 inch Racks, Software & Service – http://www.rittal.co.uk

Rittal EC fan-and-filter units with speed control

Rittal fan-and-filter units with EC (electronically commutated) motors should be the preferred choice for energy efficiency in enclosure climate control, as their operating ratio is significantly higher than standard AC fan-and-filter units.

Using fan-and-filter units always makes sense if the difference between the outdoor temperature and the internal enclosure temperature is large enough to dissipate the thermal output of the installed components. However, the fans mostly operate without regulation. In other words, they run constantly and always at full speed. In this situation, the savings potential offered by seasonal temperature fluctuations or temperature reductions in the building (e.g. on night shifts or through reduced waste heat in the enclosure) remains unused.

Further optimisation potential exists with an advanced solution using Rittal fan-and-filter units with temperature-dependent speed control. With a new sensor for controlling the speed of the Rittal EC fan-and-filter units, inherently up to 30% more efficient than comparable AC fan-and-filter units, power consumption can be drastically reduced yet again. The sensor measures the temperature within the enclosure and controls the fan speed as needed, right up to independent shutdown at below 20°C.

Replacing AC systems without speed control by EC systems with system control saves money, as shown in the following example: At a manufacturing plant with 50 fan-and-filter units (700 m³/h), run at full load for two shifts per day and five days a week, needing only 20% of the fan speed at night and weekends with reduced enclosure temperatures (20°C), EC technology and intelligent controls, can more than halve the energy costs.

Read more at http://www.rittal.com/uk-en/content/en/unternehmen/presse/pressemeldungen/pressemeldung_detail_32832.jsp

Rittal TopTherm EC fan-and-filter units

Rittal TopTherm EC fan-and-filter units

 

Rittal Enclosures, Power Distribution, Climate Control, IT Infrastructure, 19 inch Racks, Software & Service – http://www.rittal.co.uk

Exposure to high temperatures

Now may be the time to investigate available solutions to the problem of overheating panels. Rittal have a large range of cooling products that will address the problem.
Rittal’s TopTherm fan-and-filter units are an energy efficient means of cooling enclosures but require a clean and cool environment to operate effectively. Air-to-air heat exchangers have separate internal and external air paths, preventing dirt and dust from entering the panel, but still require a cool ambient air to deliver the required cooling.
Cooling units also have separate air circuits but are capable of cooling the air inside an enclosure to a temperature lower than that of the ambient as well as maintaining a clean internal environment. In the case of thermoelectric coolers, the Peltier effect is used to deliver modest amounts of cooling, typically to small panels, offering a lightweight and compact solution. Units from the Rittal TopTherm Blue e range incorporate a refriger-ant circuit and so have larger nominal cooling capacities, up to 4 kW.
Air-to-water heat exchangers can maintain the air inside a panel at a temperature lower than that of the surrounding air and have an additional benefit of allowing heat to be dissipated remotely. Water is the cooling medium used to transport thermal energy to an alternative location, where it may be discharged without increasing the temperature in an already warm environment. To complete the chilled water system a Rittal chiller can be used to return the water to its’ original condition before recirculating to the heat exchanger.

Read more at – http://www.rittal.com/uk-en/content/en/unternehmen/presse/pressemeldungen/pressemeldung_detail_32512.jsp

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Rittal Enclosures, Power Distribution, Climate Control, IT Infrastructure, 19″ Racks, Software & Service – http://www.rittal.co.uk

Rittal offer advice on HCFC ban

From 1st January 2015 it will be illegal to use any recycled or reclaimed ozone-depleting hydrochlorofluorocarbon (HCFC) R22 refrigerant gas to service cooling units.

R22 remains one of the most commonly used refrigerants in the UK used, in the past, to charge cooling units and chillers that provide electrical enclosure and process cooling. Rittal advise this legislation may dramatically affect users ability to service and maintain existing cooling products, which could result in costly downtime for important manufacturing processes.

Given that most systems leak to a certain degree, in practical terms this implies that any equipment that is of strategic importance to a business should not be using HCFCs by 2015. All current users of HCFC systems should develop a plan to manage operations without HCFCs. Doing nothing is not a sustainable option.

To avoid this damaging scenario, now is the time to check any cooling equipment and if they contain the soon-to-be banned R22 refrigerant, contact Rittal for advice on suitable replacement products. Rittal’s climate control range includes enclosure cooling units with outputs from 300 W to 4000 W and water chillers with capacities between 1 kW and 481 kW.

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Ergonomics in enclosure assembly

Allowing panel builders to work in the most ergonomic and safest way possible, Kiesling Maschinentechnik, a member of the internationally successful Friedhelm Loh Group, supply Assemblex assembly frames that support and rationalise processes throughout every stage of machining, assembly, wiring and testing of enclosures.

Three types of assembly frames offer simple and variable fixing of mounting plates using quick release fasteners, are mobile, can be tilted, independent of mains power and depending on the version, height adjustable with a maximum mounting plate or enclosure size of 1900 mm x 1900 mm.

Optional extras include the management of cable reels to the installation of the mounting plate inside the enclosure directly from the assembly frame to prevent heavy lifting. Furthermore, Assemblex assembly frames take up minimal space when not in use and with the absence of mains power, eliminate the risk of careless damage to floor power leads.

Read more at: http://www.rittal.com/uk-en/content/en/unternehmen/presse/pressemeldungen/pressemeldung_detail_32256.jsp

Assemblex assembly frame

 

Rittal Enclosures, Power Distribution, Climate Control, IT Infrastructure, 19″ Racks, Software & Service – http://www.rittal.co.uk

Rittal cooling solution boosts data-centre energy efficiency

Rittal’s new Liquid Cooling Package (LCP) Hybrid, with a cooling capacity of up to 20kW per rack, comprises a large, high-performance air/water heat exchanger that cools IT components installed inside the server enclosure.

Delivering an energy-efficient IT cooling solution, the LCP Hybrid, with a thermal output of up to 10 kW, is especially suitable for data centres and up to 20 kW for IT racks used in university and auto-industry super-computers. Rittal’s LCP Hybrid does not require a dedicated fan or additional electricity for cooling as the fans integrated into the server direct warm air to the heat exchanger via baffle plates.

One of the key innovations is an integrated heat pipe that ensures the entire cooling surface is used to best effect. Air cooled by the heat exchanger is returned to the data centre, ensuring that all racks are cooled reliably. Intake air does not need to be extremely cold, so indirect free cooling can be used for the majority of the year. Chillers are only activated if high ambient temperatures prevent water from being cooled adequately.

Rittal has moved the water connection hoses directly onto to the rear door frame, requiring less material and taking up no additional space when the rear door is opened. This saves a great deal of time and effort when planning the piping system. The rear-door solution delivers outstanding energy efficiency, saves space and is easy to install.

Available in four sizes for each of two cooling output categories, 10 kW and 20 kW, the LCP Hybrid can be deployed for IT racks up to a height of 2,200 mm, is tailored to the needs of the Rittal TS IT rack system for server and network technology and builds upon the success of the LCP Passive.

For more info: http://www.rittal.com/uk-en/content/en/unternehmen/presse/pressemeldungen/pressemeldung_detail_31680.jsp

 

Rittal's (LCP) Hybrid pipe

 

 

Rittal Enclosures, Power Distribution, Climate Control, IT Infrastructure, Software & Service – http://www.rittal.co.uk