Need For Speed Most Wanted Cheats
Emelia Lute
This page contains a list of cheats, codes, Easter eggs, tips, and other secrets for Need for Speed Most Wanted 2005 for Xbox. If you've discovered a cheat you'd like to add to the page, or have a correction, please click EDIT and add it.
You can raise your bounty as much as you want and complete that part of your milestones. First get in a pursuit and then find a ledge (ex. on top of the buses at the bus station) go as closes to the end of the buses away from the up ramp as possible without falling off and without a cop following you up the ramp. Then sit there and watch the cops go crazy. It's better if your heat is 2 or up as the lower level cops will sometimes lose sight of you and you'll cool off. At higher levels though the police will hover below you ramming into each other and everything else. This destroys their vehicles which in turn raises you bounty and length of your pursuit. You can sit there as long as you like but check behind you periodically just to make sure one of them hasn't gotten smart enough to come up the ramp. The highest I've gotten off one pursuit is almost 6 million bounty.
Engaging nitrous oxide shifts the weight of the car and in layman's terms, your car will attempt to straighten out. Combined with speedbreaker, it is possible to take on almost any turn without an appreciable loss of speed.
Cassandra Osvatics, Hydrogen and Fuel Cell Technologies Office (HFTO): Hello, and welcome to this month's H2IQ hour for an update on changes to the National Fire Protection Association hydrogen technologies code, NFPA 2. My name is Cassandra Osvatics with the Department of Energy's Hydrogen Fuel Cell Technologies Office, or H2IQ, according stakeholder engagement and other outreach activities.
Please be aware that this Webex webinar is being recorded and will be published online on our H2IQ webinar archives. If you experience technical issues today, please check your audio settings under the Audio tab. If you continue experiencing issues, please send me a direct message. Next slide, please. There will be a Q&A session at the end of the presentations and attendees will have the opportunity to submit questions in the question box. Next slide.
You can access the Q&A feature by clicking on the panel options or More options button depending on your operating system. That is the button with three dots at the bottom right corner of your window. To ensure that your questions are answered, please utilize the Q&A feature and do not add your questions to the chat. If you have trouble using the Q&A feature, please view the link in the chat for help with this issue. You can stop screen sharing. And now I'd like to turn it over to Laura Hill. Laura is a technology manager for safety codes and standards within HFTO.
Laura Hill, HFTO: Thanks, Cassie. Brian, Ethan, if you guys want to bring up your slides while I give a little bit of an introduction. I want to thank everybody for joining us today. We're excited to have two speakers from Sandia National Labs. The first speaker, although they will be tag teaming, but the first speaker is Brian Ehrhart. He's a chemical engineer at Sandia.
He has a Bachelor of Science in chemical engineering firm Rensselaer Polytechnic Institute and a master and PhD in chemical engineering from the University of Colorado at Boulder. Since 2017, he has worked to support the technical analysis for safety codes and standards for alternative fuels, particularly hydrogen, and he leaves the hydrogen safety codes and standards project at Sandia.
Ethan Hecht, our second speaker is also at Sandia National Labs. He join Sandia in 2005 after receiving a bachelor's science in engineering physics and a master's of Science in mechanical engineering from the Colorado School of Mines. Ethan participated in a special degree program through Sandia and received a PhD in chemical engineering from the University of Utah in 2013.
Ethan has been leading Sandia's research into hydrogen behavior as it relates to safety codes and standards since 2014. Today, Brian and Ethan are going to talk with us a little bit about the new changes to NFPA 2. So I will stop talking and allow them to expand on that. Thank you, Brian and Ethan.
Brian D. Ehrhart, Sandia National Laboratories: Great. Thanks, Laura. So, yeah, like Laura said, my name is Brian Ehrhart and Ethan and I are going to be talking today about some of the basis technical justification and calculations that provided revised set back distances for bulk liquid hydrogen storage in the NFPA 2 code. And I apologize about my voice but we'll just deal with it.
All right, so first, I wanted to give just a brief introduction to the NFPA 2 hydrogen technologies code specifically. So this is a fire code put out by the National Fire Protection Association that was founded in 2006. The NFPA 2 document was established in 2006 as a way to bring together all hydrogen-specific requirements for anything related to stationary systems that produce, store, transfer, or use hydrogen. So this code really does apply to those kind of stationary systems. So refueling stations, storage facilities, those sorts of things.
It does not apply to onboard vehicle storage or components, and is meant to apply to near pure hydrogen gas and liquid. Not necessarily other hydrogen containing mixtures or materials. The most recent 2023 edition of NFPA 2 was just published recently in December of 2022. So just a couple of months ago. And it is now the current edition of the NFPA 2 code.
This code, this document, is fairly widely and commonly adopted here in the US, although the specifics of whether or not this particular document is adopted and specifically what year or what edition of the code is adopted can vary by state or local jurisdiction. So the specific legal requirements in your particular jurisdiction, especially internationally but even here in the US in different states or counties can vary case by case. But NFPA 2 is still a pretty commonly used document. Even when it's not legally required, it still can be referred to and used as a basis for requirements for these types of systems.
So today we're going to be talking primarily about setback distances. And so I wanted to talk briefly about what those are, what they mean, and what they are intended to do. So a setback distance is a prescribed distance. So it's a specific distance that's listed in the code. So it's a particular requirement that is meant to provide physical separation from a potentially hazardous system, in this case a hydrogen storage system, and provide distance away from people, buildings, or other hazardous materials.
This can help protect those people, buildings, or other hazardous materials from potential damage should a hazardous condition develop. And it can also work in reverse actually. So external damage, like external fires to the system, that same distance could provide protection to the hydrogen system in reverse, even though that sometimes isn't always explicitly considered in the development of the setback distances. But it's still worth mentioning.
Setback distances do not completely eliminate risk. They are not necessarily based on an absolute worst case scenario. And so these very rare high consequence events may sometimes not provide sufficient protection just due to the setback distance alone. That's because these setback distances are meant to work in conjunction and together with other safety requirements, including design requirements, installation requirements, and operational requirements in the fire code. So those other types of requirements are really help to ensure the system is designed, installed, and operated safely.
And these setback distances provide an additional layer of protection, especially for more common leaks or releases that might occur due to the system operation. These setback distances, because they are prescribed in regulations, codes, and standards, in this case, the NFPA 2 code that we'll be talking about today, can really have a big impact on system location and siting.
This can include both the physical footprint a hydrogen storage system can take up, and how much space around the system needs to be kind of reserved or set aside. It can also affect where a hydrogen system can be located within a larger property that may contain other types of systems or other people, roadways, parking facilities, that sort of thing. So therefore, for all these reasons, it's really important that these setback distances have a strong technical justification. So that they can promote and improve safety and ensure these systems are operated safely without being unnecessarily onerous or restrictive
So previously, in previous editions of the NFPA 2 document, the bulk liquid hydrogen storage setback distances tended to be somewhat large, somewhat arbitrary and based on the storage volume capacity of the liquid hydrogen storage tank. And they also tended to vary quite a bit by individual exposures. So different types of buildings or different types of other materials tended to have different setback distances. And this made it somewhat complicated to apply these types of systems.
And as well, there are different systems with larger storage capacities were potentially subject to very large setback distances. And so what we wanted to do in conjunction with the NFPA 2 Technical Committee and Storage Task Group was take a look at the basis of these setback distances, see if we could come up with a revised basis to replace a poorly documented and somewhat unknown basis for the previous setback distances. And specifically try to identify were there places in which the setback distances could be reduced in which safety wouldn't really be adversely affected.
So to do that, we wanted to develop, validate, and verify some necessary numerical models that could be used to predict hydrogen release behavior because that's what we can base these setback distances on. We wanted to group all these various different exposure types into fewer groups that were more similar to make things a little bit more consistent. We wanted to use quantitative risk assessment tools and methodologies in order to determine a representative or relevant leak size basis to determine the setback distances, and then calculate these distances using those models and based on the basis determined.