I can't get over the cooking aspect. If this were a burger stand there would likely be a deep-fat fryer, a griddle, perhaps a grill, and a range top. I imagine a taco stand would be similar and so also a taco truck. In any event greasy vapors for all and a cooking line fire suppression system. A food truck parked outside will vent those vapors to the outside as would any stand alone fast food restaurant. Now move six trucks in to a building and you have a mall food court. The food court booths will each have a hood as will the trucks but in the food court the hoods will join in a common duct that vents to the outside while the trucks will vent ito the building will be kitchens and seating area. Negative pressure over the cooking lines will draw the vapors back towards the kitchens thus providing grease laden make-up air (fuel and oxygen) back over the lines (ignition). Perhaps the volume of air in the building will be sufficient to dilute the greasy vapor to below a hazard level but I think it needs to be considered. There's also the non-fire problem that the customers are essentially sitting in a non-vented kitchen which has to be against some code or another.
On Fri, Jan 14, 2022 at 7:56 AM Kyle.Montgomery via Sprinklerforum < sprinklerforum@lists.firesprinkler.org> wrote: > It's always been my understanding that the different hazard > classifications are based upon the fuel load of a potential fire, not the > likelihood that there will be a fire. So whether there is a stove in > operation or not shouldn’t really change the hazard. > > So you come back to fuel load, which is present whether you are cooking in > the truck or the truck is parked. So, are you allowed to park taco trucks > in a parking garage? In order to call a parking garage Ordinary Hazard > Group 1, do we need to have signage on the entrance that prohibits taco > trucks from entering? > > My biggest questions would be: > 1. Since they are likely parked long-term, do the have additional fuel or > other combustible supplies that wouldn't be present in a vehicle moving > from location to location? > 2. Is there a buildup of grease that needs to be considered based on how > the ventilation air is treated? > > I don't think ordinary hazard would be out of the question. I think my > first attempt would be to go OH 2, and make someone convince me that it > needed to be more than that. > > Full disclosure, I don't have the necessarily letters after my name to act > as a consultant, and I tend to be a little less conservative than our other > brothers and sisters on this forum. > > -Kyle M > > -----Original Message----- > From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On > Behalf Of Prahl, Craig/GVL via Sprinklerforum > Sent: Thursday, January 13, 2022 10:30 AM > To: sprinklerforum@lists.firesprinkler.org; Edk <e...@bamfordfire.com> > Cc: Prahl, Craig/GVL <craig.pr...@jacobs.com>; Fpdcdesign < > fpdcdes...@gmail.com> > Subject: [EXTERNAL] RE: [EXTERNAL] Re: Food trucks inside a building > > Shielded fires wouldn't be my primary concern, fuel density and fire > intensity would be my concerns. A little fire in a truck can be handled by > a fire extinguisher. I'm not sure if food trucks are required to have > anything other than that for fire control. But a fire in one of these > units is not going to be shielded for very long if it isn't brought under > control almost immediately. > > > Craig Prahl | Jacobs | Group Lead/SME – Fire Protection | > craig.pr...@jacobs.com | > https://urldefense.com/v3/__http://www.jacobs.com__;!!Ba8_KKAT!ZrXP5SK6t5glR-DVUQLAZqoO-M8IgbnbLSNz1_g0q5s8iY5IgvuCyhGm_e3Ao6KYcFE$ > 1041 East Butler Road Greenville, South Carolina 29606 > CONTACT BY: email or MS TEAMS > > > > -----Original Message----- > From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On > Behalf Of Fpdcdesign via Sprinklerforum > Sent: Thursday, January 13, 2022 11:57 AM > To: Edk <e...@bamfordfire.com>; Sprinklerforum < > sprinklerforum@lists.firesprinkler.org> > Cc: Fpdcdesign <fpdcdes...@gmail.com> > Subject: [EXTERNAL] Re: Food trucks inside a building > > > > > When I saw this, my knee-jerk reaction was EH2 for shielded fire. > However, I was on a job site and had a 1:15 ride back to think about it. > > > > Most automobiles are enclosed and any fire started inside would be > “shielded”. But a parking garage has been OH1 for a long time (although > that may be reassessed). Also, the examples in NFPA 13 of shielded > occupancies are very large (Modular houses). Where is the cut off between > what OH1 would protect and EH2 be necessary? Who knows? A pick up truck has > a lot less shielded space that an SUV. It is most likely a function of the > size of the shielded area but how do you regulate that? > > > > Most food trucks are little more than delivery vans with kitchens and a > side window. If 6 regular delivery vans were parked there, how would you > protect it? > > > > I would lean toward EH2 because of the combination of the shielded space > and the kitchen inside. > > > > To Ron’s point, there are a lot of other health and safety regulations > (commercial kitchen without adequate ventilation, etc) that make this whole > occupancy sketchy to begin with. > > > > Todd G Williams, PE > Fire Protection Design/Consulting > > Stonington, CT > > 860-535-2080 (tel:860-535-2080) (ofc) > > 860-554-7054 (tel:860-554-7054) (fax) > > 860-608-4559 (tel:860-608-4559) (cell) > > > > > > > > > > > On Jan 13, 2022 at 10:08 AM, <Ed Kramer via Sprinklerforum (mailto: > sprinklerforum@lists.firesprinkler.org)> wrote: > > > > > > > > I'm working on a small project (approx. 7,200 sf) that is a > noncombustible structure used for parking operating food trucks indoors. > The plan shows 6 trucks spread out near the perimeter with the middle of > the building open for pedestrian traffic (maybe tables?). Ordinary Group I > hazard (parking garage) seems very inadequate. Extra hazard group II > (manufactured home assemblies) seems a bit strong. Thoughts? Ed K > _______________________________________________ Sprinklerforum mailing > list Sprinklerforum@lists.firesprinkler.org (mailto: > Sprinklerforum@lists.firesprinkler.org) > https://urldefense.com/v3/__http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org__;!!B5cixuoO7ltTeg!RcX5JP4LeGO09FAr8CBattqY0kW-M8-52sufDsdeL1NcQ7PBWPXO05AHXjBEwkvHNg$ > > > > > > > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > https://urldefense.com/v3/__http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org__;!!B5cixuoO7ltTeg!RcX5JP4LeGO09FAr8CBattqY0kW-M8-52sufDsdeL1NcQ7PBWPXO05AHXjBEwkvHNg$ > > ________________________________ > > NOTICE - This communication may contain confidential and privileged > information that is for the sole use of the intended recipient. Any > viewing, copying or distribution of, or reliance on this message by > unintended recipients is strictly prohibited. If you have received this > message in error, please notify us immediately by replying to the message > and deleting it from your computer. > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > https://urldefense.com/v3/__http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org__;!!Ba8_KKAT!ZrXP5SK6t5glR-DVUQLAZqoO-M8IgbnbLSNz1_g0q5s8iY5IgvuCyhGm_e3AEePNlfA$ > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
