Subscribe to newsletter

Submit Article

 



Editors Note: Powrmatic provide:

  • Heating systems

  • Ventilation systems

  • Commercial heating

  • Industrial heating

Home

Advertise Here

Request Quote

CPD Seminar

 

Advertise Job

Advertise Job

Terms & Conditions

Terms & Conditions

Contact Building Design

Contact Building Design

e-mail Building Design

e-mail Building Design

 

- Building Design - Services & Construction Products Index

Request Information

Links Page

 


 

POWRMATIC LTD - Air Rotation – The Hot Topic For 2011

Concept of Air Rotation
Until recently, heating acres of indoor spaces such as warehouses and distribution centres with high density racking was challenging for environmental engineers and often costly for the building operator. Things have moved on in a big way since the advent of air rotation technology. End users employing air rotation heaters can expect to see considerable savings in both capital and operating costs compared with current alternative methods of heating.

Air rotation heating systems typically comprise of a small number of heat modules strategically positioned within or external to the heated space and work by circulating high volumes of air at low velocities and temperatures. The maintenance of constant air circulation within the building reduces the stratification effect often associated with conventional warm air systems and provides a uniformity of heat that is difficult to match.

In operation the air rotation system for the heating of the building is best applied in a 24-hour, seven-day continuous operation. During the periods when the building is not in use it can be set back to a temperature which would generally be 8-10°C below the day set point operating temperature. This will have the effect of maintaining air circulation throughout the building and will maintain a background temperature, when required the building will quickly return to the day set point design temperature.

With the air rotation units in continuous use no allowances need be applied for a pre-heat period, therefore a lower heat input is applied and with the use of either hi-low or modulating burners, lower usage and running costs will result.

The primary reason for a site client to choose an air rotation system in preference to either radiant heating or suspended warm air heating may well be the promise of lower costs. However cost benefits do not tell the whole story. Rotation heaters have many other advantages. Alternative suspended heaters or ducted systems will have been designed to suit the building and racking layout. Such systems restrict future layout changes whereas rotation heaters leave the working zones clear permitting greater flexibility in use. Also, because the units are floor standing long term service costs will be lower as there will be no need for the high level access equipment that would be required to service and maintain high level radiant and suspended warm units.

As the units are all floor mounted, either within the building or externally, they offer the ease of installation that comes with working at low level, whereas any high level heating scheme will require high level access equipment to carry out the installation leading to both longer times to carry out the installation and higher installation costs.

Real world example – J&L Industrial Supply installation
The example shown displays the temperature readings taken from an actual air rotation installation with no other forms of heating or destratification fan units being used. The readings were taken on a normal working day with loading bay doors in use.

This clearly indicates the excellent heat distribution and temperature control that an ‘air rotation’ system offers.

Application of systems
Any new type of new build warehouse/distribution centre will lend itself ideally to air rotation heating. Such systems can also be installed retrospectively into existing buildings.

Depending on the individual installation site, there is a choice of gas or oil fuelled operation: the cost of oil is generally higher per kw/h than gas but whichever type is installed, operators can rely on reaping the benefits of lower running costs.

Another argument for the end user to consider an air rotation system is that the heaters qualify for the Governments Enhanced Capital Allowance scheme (ECA) and the project may also be eligible for the interest free loan scheme operated by the Carbon Trust.

Whether installing air rotation heating into a new building or replacing a less efficient system, the arguments are compelling: it is low on emissions, low on running costs, high on efficiency, swift to install, easy to maintain and offers a speedy payback on the investment in terms of energy cost.

E-mail Powrmatic

 


ACO Drainage systems Drainage pipe Drainage channels Drainage gratings News 090611

Airedale IT cooling systems Air conditioning units Cooling systems News 070611

Andrews Water heaters Gas water heaters Storage water heaters News 090611

Ardex Floor levelling Floor adhesive Floor screed Resin flooring News 090611

Atlantic Boilers Ground source heat pumps Heat pumps Condensing boilers News 080611

Cembrit Slate roof tiles Roof tiles Man made tiles News 090611

Dimplex Hot water cylinders Heat pumps Energy efficient heating News 070611

Dulux Trade Dulux paint Trade paint Gloss paint Matt paint News 080611

Eaton Electric Cable management Speed drives Electrical systems Electrical products News 100611

Formica Formica worktops Formica laminate Formica sheets Room dividers News 080611

Hitachi Air conditioning Heat pumps Domestic heating Compressor chillers News 080611

Kingspan Access floors Access flooring Suspended floors Raised flooring News 060611

Leaderflush Shapland Door sets Internal doors Timber doors Safety doors News 100611

Marley Eternit Roof tiles Cement roof tiles Clay roof tiles News 090611

Mitsubishi Air conditioning units Air conditioning controllers Heat pumps News 080611

Passivent Passive ventilation Natural ventilation Ventilation systems Daylight systems News 080611

Pilkington Glass windows Glass products Glass balustrades Glass wall News 080611

PMA Cable protection systems Cable protection Underground cable protection News 090611

Potterton Commercial boilers Condensing boilers Space heating Heat pumps News 090611

Rockfon Ceiling tiles Suspended ceiling Acoustic ceilings Modular ceilings Tiles 090611

Sadolin Wood preservative Timber preservative Wood protection Timber treatment News 080611

Tarkett Vinyl flooring Commercial flooring Floor coverings Industrial flooring News 080611

Telling Architectural Roof skylights Rainscreen cladding Sky lights Roof windows News 080611

Telling Structural glazing Rainscreen cladding Glazed roofing Solar photovoltaics News 060611

Total Hygiene Disabled toilets Shower toilets Toilet lifters Disabled bathrooms News 060611

TROX Air conditioning units Chilled beams Fan coil units News 070611

News Categories:
Heating systems Ventilation systems Commercial heating Industrial heating

Arundel Jones Associates Ltd
Hill Farm Business Park, Linton Hill, Maidstone, Kent ME17 4AL
Tel : 01622 745333

news@buildingdesign.co.uk


See also:

| BuildingDesign Directory | BuildingDesign Tenders |

|BuildingDesign News Archives | 2006 | 2007 | 2008 | 2009

| BuildingDesign Recruitment | AJA Part Time Jobs Board |

© 2010 copyright all rights reserved Registered in England and Wales No. 07334149