24/03/2014

Hi UK Event News Highlight & Information For April 2014!.

Hi In Focal; UK Event News Information!.

April 2014

The National Engineering & Construction Recruitment Exhibition:

4 - 5 April 2014

Recruiting now:
Find hundreds of jobs in every discipline at The National Engineering & Construction Recruitment Exhibition on 4 & 5 April at the NEC, Birmingham.
Meet with a wide-range of major employers at the exhibition, who will be seeking new staff for engineering roles in the UK.
Aquaterra Energy, Babcock, Cape, CH2M Hill, Network Rail, Ramboll, Royal Navy, Safran Power and Smartpay will be among an extensive range of employers at what promises to be the spring’s must-attend engineering recruitment event.
The Professional Development Hub:
Exclusive to The National Engineering & Construction Recruitment Exhibition is the Professional Development Hub. Meet with representatives from the Engineering Council and key professional engineers institutions for advice on professional registration and how it can help your career development, as well as the benefits of professional institution membership.


The Professional Development Hub is open to all visitors to the exhibition, from those just setting out on their career path to highly experienced professionals.

 Register now for free entry at www.engineerjobs.co.uk

Venue:

  • NEC, Birmingham

    County:West Midlands
    Postcode:B40 1NT

Organiser:

  • The National Engineering & Construction Recruitment Exhibition

  • Drives and Controls 2014

    8 - 10 April 2014

    If you are involved in manufacturing, refurbishment or maintenance then you should visit Drives and Controls 2014 (NEC Birmingham, 8-10 April 2014). Entry is free of charge and once inside you'll find the show covers the very latest Mechanical power transmission motion control and automation from over 300 world class companies.

    See the following at Drives and Controls 2014:


    • Motors


    • Drives


    • Machine safety


    • Sensors


    • Programmable Controllers


    • Inverters


    • Motion Controls


    • Repairs & maintenance


    • Gear, brakes, clutches and couplings


    • Displays & meters


    • Test & Measurement


    Featuring:


    • World-class suppliers from around the world


    • Full programme of FREE technical seminars with top class speakers offering expert insight and practical advice on the issues that affect you the most


    • Co-located with fluid power systems European Offshore & Energy, Airtech (Compressed Air and Generators), Plant & Asset Management Exhibition, Mach and National Electronics Week


    Sales Director


    Doug Devlin


    Tel: 01922 644766


    Fax: 01922 633730


    Email: doug@drives.co.uk

    Venue:

    • NEC, Birmingham

      County:West Midlands
      Postcode:B40 1NT

    Organiser:

    • Drives & Controls

      Country:United Kingdom


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Hi Green Tip #4: Hi Size and Select Fans Near Their Peak Total Efficiency.

Even the most efficient fan models can operate inefficiently if improperly sized.Fans selected close to their peak total efficiency (pTE) will use less energy. The 2012 International Green Construction Code requires selections within 10% of peak efficiency, and ASHRAE Standard 90.1,

Energy Standard for Buildings Except Low-Rise Residential Buildings, is considering language that would require a 15% allowable range. If a fan is selected to operate more than 15 point below its peak efficiency, it is probably undersized to result in the lowest purchase price (first cost). The smaller, less-expense fan will have to run much faster with higher levels of internal turbulence than its larger cousin to meet the required air flow, thus consuming a lot more energy.The cost difference to select a larger fan closer to peak operating efficiency is very small when compared to the energy saved.

Simple payback for 10% selections is usually less than one year. Smaller fans operating faster will also require more maintenance and earlier replacement. Smaller fans generate more noise as well.Below is a table showing the output from a fan manufacturer's sizing and selection program. All of the fans in the table would "do the job" of providing the required airflow at the required pressure.

The fan sizes range from 18-inches in diameter to 36-in. Notice that as the fan diameter increases, the fan speed decreases, as does the fan power (expressed as "brake horsepower"). The red region of the table indicates poor fan selection practice - none of these fans have an actual total efficiency (at the airflow and pressure required) within 15 points of peak total efficiency. The green region indicates proper fan selection process - all have an actual total efficiency within 15 points of peak total efficiency.

Note that the 30-in. diameter fan consumes roughly half the power of the 18-in. fan. The lowest cost fan shown is probably the 20-in. fan, with an efficiency of 49%, 29 points off the peak. If this fan runs 6,000 hours per year at a utility rate of 10 cents per kwh, it will cost $4,300 a year to operate. A more efficient selection might be the 24-in. fan because it is "Class I" and complies with both ASHRAE 90.1 and the Green code requirements. It has an actual efficiency of 69%, 10 points less than the peak efficiency of 79%. This fan would cost $3,100 to operate, which is probably more than the fan itself costs. A more efficient 30 inch selection is only 1 point from its peak efficiency of 83% and will consume only $2,600 per year, saving $500 a year relative to a 24-in. fan, and $1,700 a year over the lowest cost fan. Generally, the difference in initial cost of the most efficient fan selection is paid back in less than 5 years over more common less efficient alternatives. Perhaps this observation will bring it home.

Most fans consume more each year in energy cost than they are worth. So, when you buy a fan, think of it as a liability, not an asset. Your objective should be to make the liability placed on those who will pay future energy bills as low as possible. The leverage implicit in choosing a larger, more efficient fan is much greater than most people appreciate. And fans last a long time – 20 years plus – so choose wisely.The bottom line is this. Right-sizing a fan can yield energy savings and generate a lot of operating cost savings for the facility owner or occupants for many, many years.

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