Canute

Hydraulic Calculation Software

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RT @ann_jonesam: publicly asking sec of state for Wales to meet me and anybody else he wants to bring to discuss benefits of sprinklers in …

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Sprinkler System in Shopping Centre Attacked by Mob Contains

'Mark O'Meara from Greater Manchester Fire and Rescue Service reports that on Tuesday 9th August a severe fire occurred in a shop unit at the Salford Centre, Manchester, during the riots that affected the city.

The centre manager indicated that the sprinklers activated and although it struggled with the size of the fire it still contained it until FRS extinguished it. The fire was contained to the unit, the centre is still operating.

Greater Manchester Fire Service reported 155 fires across Manchester city centre and Salford during the time the unrest was taking place and so details of the incident are sketchy at present.'

This is an important demonstration that properly designed sprinkler systems will cope with even extreme circumstances and that sprinklers are an effective counter to deliberately started fires.

BS DD 8458 Part 1 has been published

BS DD 8458 Fixed fire protection systems - Residential and domestic watermist systems - Part 1: Code of practice for design and installation has now been published by BSi.

FHC can easy provided the hydraulic calculations for watermist systems designed to this British standard as way as NFPA 750 and other international watermist standards.

This draft watermist standard is for domestic and residential properties to provide both life and property protection and it is assumed that the watermist systems will become an integrated part of the fire safety system in the building.

As the standard only allows the watermist system to be installed in buildings less than 20m in height and with a room size no larger than 8m x 4m which is the size of the test room detailed in Annex A of the standard.

Hydraulic calculations for Wet & Dry risers systems

A useful research report has been published by ODPM to provided information on the limitations of fire rising mains such as wet and dry risers complying with BS 5306 part 1 : 2006. The report looks at a number of different pumps and nozzle and hydraulic calculates the pressure loss through the pipe.

The Canute - FHC hydraulic calculation software is able to make the same types of pressure loss calculations as presented in this report which may help installers and designs verify designs.

You can get a full copy of the ‘Hydraulic Calculation of Wet and Dry Risers, Hoses and Branches' bellow

NFPA ban antifreeze in fire sprinkler systems

The NFPA have issued a safety alert and recommends the residential fire sprinkler systems which are filled with antifreeze should be drain and refilled with water. This safety alert was issued after an incident with a residential fire sprinkler installation involving a grease fire in a kitchen which resulted in a fatality and one other person been serious injured.

You can read the full article at NFPA