{"id":6402,"date":"2012-03-06T09:22:53","date_gmt":"2012-03-06T08:22:53","guid":{"rendered":"https:\/\/mag.ebmpapst.com\/en\/?p=6402"},"modified":"2024-03-12T17:58:05","modified_gmt":"2024-03-12T16:58:05","slug":"eu-focuses-on-green-fans","status":"publish","type":"post","link":"https:\/\/mag.ebmpapst.com\/en\/products\/fans\/eu-focuses-on-green-fans_6402\/","title":{"rendered":"EU focuses on \u201cgreen\u201d fans"},"content":{"rendered":"

By adopting the Kyoto Protocol, the Euro\u00adpean Union has under\u00adtaken to reduce CO2 emis\u00adsions by at least 20% by 2020. One measure for achieving this is the EuP direc\u00adtive (Energy-using Prod\u00aducts direc\u00adtive) adopted by the EU in 2005, which was renamed the ErP direc\u00adtive (Energy-Related Prod\u00aducts direc\u00adtive) in 2009 and is also referred to (in Germany) as the eco-design direc\u00adtive. Within its frame\u00adwork, the savings poten\u00adtial of energy-rele\u00advant prod\u00aducts are exam\u00adined and minimum require\u00adments are defined. For example, in the field of lighting, this has already had concrete impact: 100W bulbs are due to disap\u00adpear from the market. Now, manda\u00adtory limits applic\u00adable for fans were defined in June 2010.
\n When the ErP direc\u00adtive becomes effec\u00adtive for fans, fan manu\u00adfac\u00adturers will be required to design their prod\u00aducts for the Euro\u00adpean market to comply with defined effi\u00adciency stan\u00addards to make an impor\u00adtant contri\u00adbu\u00adtion to reducing energy consump\u00adtion. This will affect all fans in the power range from 125 W to 500 kW, regard\u00adless of whether or not they are oper\u00adated as single units or as inte\u00adgrated compo\u00adnents within a system. This concerns all conceiv\u00adable appli\u00adca\u00adtions, from refrig\u00ader\u00ada\u00adtion and air-condi\u00adtioning tech\u00adnology through to mechan\u00adical engi\u00adneering and IT appli\u00adca\u00adtions.<\/p>\n

Two-stage plan with strict stan\u00addards<\/h2>\n
<\/a>

To decide whether a fan satis\u00adfies the ErP Direc\u00adtive, the effi\u00adciency of the complete fan is assessed, i.e. the unit of control elec\u00adtronics (if fitted), motor and fan impeller<\/p><\/div><\/div>\n

The EU has spec\u00adi\u00adfied a two-stage plan with strict stan\u00addards to keep \u201cenergy-burners\u201d off of the Euro\u00adpean market in the future. The first stage will become effec\u00adtive on 1 January 2013. Some 30% of all fans currently on the market will then no longer satisfy Euro\u00adpean regu\u00adla\u00adtions. In the second stage, from 2015, another 20% will be replaced by more effi\u00adcient prod\u00aducts. These will satisfy the spec\u00adi\u00adfied minimum effi\u00adciency levels.
\n The user can recog\u00adnise fans that satisfy the require\u00adments of the direc\u00adtive by the CE sign, which will then give energy effi\u00adciency the same signif\u00adi\u00adcance as compli\u00adance with the low-voltage and EMC direc\u00adtives. Labelling in the way prac\u00adticed with washing machines, refrig\u00ader\u00ada\u00adtors etc. is not planned for fans as the fan manu\u00adfac\u00adturers usually have no influ\u00adence over the instal\u00adla\u00adtion condi\u00adtions.<\/p>\n

Chal\u00adlenging limits<\/h2>\n
<\/a>

The effi\u00adciency cloud shows that many fans exceed the values demanded<\/p><\/div><\/div>\n

To decide whether a fan is compliant with the ErP direc\u00adtive, the effi\u00adciency of the complete, ready-to-use fan is assessed, i.e. the unit comprising control elec\u00adtronics (if fitted), motor and fan impeller. The corre\u00adsponding limits have been set very high. The effi\u00adciency cloud illus\u00adtrates the limits that are set to become valid in 2013 and 2015, shown in the form of black lines. At the same time, the effi\u00adciency of conven\u00adtional centrifugal fans from ebm-papst\u2019s broad product range are entered in the diagram. The \u201ceffi\u00adciency cloud\u201d shows that not all fans satisfy the future require\u00adments. But it can also be seen that for every fan that will no longer be permitted in the future, there is already an energy-effi\u00adcient replace\u00adment that not only fulfils the spec\u00adi\u00adfi\u00adca\u00adtions of the direc\u00adtive, but actu\u00adally exceeds them.
\n For axial fans, forward and back\u00adward curved centrifugal fans, tangen\u00adtial blowers and diag\u00adonal fans, the EU has spec\u00adi\u00adfied the corre\u00adsponding formulas with which the respec\u00adtive minimum effi\u00adciency can be calcu\u00adlated. In the assess\u00adment, different power ranges and mounting condi\u00adtions are taken into account for the measure\u00adments. The target effi\u00adciency, that is the concrete spec\u00adi\u00adfi\u00adca\u00adtion for an axial fan in the power range from 0.125 to 10 kW, can be calcu\u00adlated using the following formula:<\/p>\n

<\/a>

To deter\u00admine the effi\u00adciency, the EU spec\u00adi\u00adfies the rele\u00advant formulas that are used to calcu\u00adlate the minimum effi\u00adciency for each type of fan<\/p><\/div><\/div>\n

Minimum effi\u00adciency \u03b7min = 2.74 x ln (power input P1 in kW) \u2013 6.33 + N. Where N is a constant defined in the direc\u00adtive. For axial fans, this will have the value 36 from 1 January 2013 and 40 from 1 January 2015. This factor can be looked upon as a kind of polit\u00adical \u201csetting screw\u201d for a further tight\u00adening of require\u00adments in the future. For the HyBlade\u00ae axial fan illus\u00adtrated in Figure 4 with a drive output of 0.69 kW at optimal oper\u00adating point, the formula states that an effi\u00adciency of at least 28.65% must be achieved from 2013 and at least 32.65% from 2015, based on the static pres\u00adsure increase. The curve indi\u00adcates 40% effi\u00adciency, which is already substan\u00adtially higher than the minimum require\u00adment for 2015. This fan thus already satis\u00adfies the future spec\u00adi\u00adfi\u00adca\u00adtions.<\/p>\n

The future belongs to EC tech\u00adnology<\/h2>\n
<\/a>

HyBlade\u00ae axial fan in EC tech\u00adnology, which not only fulfils the strict energy effi\u00adciency require\u00adments, but actu\u00adally substan\u00adtially exceeds them<\/p><\/div><\/div>\n

<\/a>The effi\u00adciency cloud shows exam\u00adples of just how demanding the limits spec\u00adi\u00adfied by the ERP direc\u00adtive are. Against this back\u00adground, the EC tech\u00adnology devel\u00adoped some years ago by ebm-papst is the first choice for elec\u00adtri\u00adcally powered fans. Compared to conven\u00adtional fans with asyn\u00adchro\u00adnous motors (AC tech\u00adnology), EC motors achieve an effi\u00adciency of more than 90%. That means energy consump\u00adtion up to 50% lower compared to AC solu\u00adtions. More\u00adover, the speed of EC fans can be controlled so that the air volume can be adapted to suit the specific require\u00adments, which also results in further substan\u00adtial energy savings.
\n Thanks to the successful inter\u00adac\u00adtion of motor, elec\u00adtronics and aero\u00addy\u00adnamics, ebm-papst\u2019s EC fans do not just convince with respect to their energy effi\u00adciency. They also work extremely quietly thanks to their opti\u00admised commu\u00adta\u00adtion tech\u00adniques and the aero\u00addy\u00adnamic config\u00adu\u00adra\u00adtion of the impellers. And on top of every\u00adthing, they also convince with their reli\u00ada\u00adbility and dura\u00adbility.<\/p>\n

Direc\u00adtive for motors<\/h2>\n
<\/a>

EC motors (green) substan\u00adtially exceed the effi\u00adciency level required by the direc\u00adtive for AC motors (other colours)<\/p><\/div><\/div>\n

What applies to fans also applies in prin\u00adciple to elec\u00adtric motors. In this context there is often a lack of clarity leading to misun\u00adder\u00adstand\u00adings. The fact is that elec\u00adtric motors are required to achieve at least effi\u00adciency class IE2 from June 2011 in accor\u00addance with Euro\u00adpean Union direc\u00adtive no. 2009\/640\/EC (ERP direc\u00adtive). Only then will these motors be permitted to remain on the market in Europe. However, not all of the stan\u00addard motors today will be affected by this direc\u00adtive. The direc\u00adtive defines a \u201cmotor\u201d as an \u201celec\u00adtric single speed, three-phase 50 Hz or
\n 50\/60 Hz, squirrel cage induc\u00adtion motor that has 2, 4 or 6-poles, a rated voltage of up to 1000 V and a rated output between 0.75 kW and 375 kW\u201d. EC external rotor motors like the ones used to drive energy-effi\u00adcient fans are there\u00adfore not subject to this direc\u00adtive. Never\u00adthe\u00adless, their effi\u00adciency can still be compared to the values stip\u00adu\u00adlated in the direc\u00adtive. Here, it becomes clear that EC motors already substan\u00adtially exceed the effi\u00adciency levels demanded. This shows that EC motor tech\u00adnology is the better alter\u00adna\u00adtive when plan\u00adning energy-effi\u00adcient devices and instal\u00adla\u00adtions.<\/p>\n

Learn more about the ERP direc\u00adtive<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

By adopting the Kyoto Protocol, the Euro\u00adpean Union has under\u00adtaken to reduce CO2 emis\u00adsions by at least 20% by 2020. One measure for achieving this is the EuP direc\u00adtive (Energy-using Prod\u00aducts direc\u00adtive) adopted by the EU in 2005, which was renamed the ErP direc\u00adtive (Energy-Related Prod\u00aducts direc\u00adtive) in 2009 and is also referred to (in [\u2026]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[91,16],"tags":[],"class_list":["post-6402","post","type-post","status-publish","format-standard","hentry","category-erp","category-fans"],"acf":[],"_links":{"self":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts\/6402","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/comments?post=6402"}],"version-history":[{"count":1,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts\/6402\/revisions"}],"predecessor-version":[{"id":18895,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts\/6402\/revisions\/18895"}],"wp:attachment":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/media?parent=6402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/categories?post=6402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/tags?post=6402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}