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Hi Materials Gurus, I am looking for an insulating foam for a hot water boiler application. We have used polystyrene but it is borderline for the temperature requirement. 1. Needs to be ok for continuous use temp of 100degC - or slightly higher. 2. Needs to be moldable with a less...

Agreed - I would have to say Nick Birkett's image is one of the MOST photorealistic renderings I have seen - was it really done in Photoworks?? Any finish other than shiny metal or translucent plastic I have always thought came out poor. The metallic paint finish and the plastic around the...

Hi Mcgyvr, thanks for your suggestion. The threaded rod wasn't always threaded in the past as far as I can work out. A previous supplier just welded to plain rod. Our newer supplier welds to the threaded rod instead as this is their standard method. So far there have been no issues with this...

Hi again all, brief update and more questions! I have been on to Tyco trying to get recommendations but as it's holiday season over here it will probably be a week or more before I get some good feedback. Anyhow I have been checking the element tabs a little more in detail and one thing that...

Hi again, well I have definitely learnt a few things so thanks to all. The whole air flow requirement does make complete sense when you hear it. I guess in our zealousness to protect the assembly and servicing guys we shot ourselves in the foot a bit. Keith - I like your arguments for...

Thanks all for the replies. Those subtle differences in quality clearly make a big difference to the outcome. Just one thing on the suplier quality - we manufacture most of our Equipment in house still but some of our 'lower end' stuff is made in the far east. The interesting thing is that we...

Hi Desertfox, yeah the temp was taken without the silicone tube in place. Was just easier to jiggle the wire and see what was happening with it not in the way. Though I do also have a query as to the best way to take temps off a terminal with frying myself or the equipment and not affecting...

Hi Guys, I am a mechanical design engineer at a company that manufacture commercial filter coffee brewing equipment and hot water boilers. I apologise in advance for a 'not well posed problem' due to my lack of EE background but here goes. We have been seeing some burnouts between the heater...

Excellent quick reply MintJulep - brain pain easing already. Thanks!

Hi all, I have a water heating theory question that is hurting my head a bit. Scenario: 1. Say I have two water storage tanks - one of 10L one of 5L. 2. The tanks have a secondary sealed surround - filled with PUF insulation so the only method of cooling is via conduction (rough assumption but...

Thanks for the replies all, GSTeng - it's great to know I wasn't the only one confused at first. I will plug in the numbers and try to get a reference going through those equations. Cheers James

Hi, sorry for the delayed thanks - been a busy week or few! I will try to get a copy of the suggested reference. Elie your point seems a fairly valid one! I think the cooling shell will however dissipate more heat than I am assuming and so Tcold,out will be less than 14deg C. It definitely...

Hi all, I am looking at a heat exchanger question in my new job for the first time since 3rd year of my Mech Eng Degree (about 9 years ago!). Anyway I have done some reading and the scenario I am dealing with is fairly simple but I'm still unsure on a few things. Here goes at trying to explain...

Hi there, just wondering if anyone had come across any facial and internal mouth Solidworks CAD models in their travels? Its for a medical product development and not sure if it will be useful but just wanted to check if that kind of thing existed. Thanks James

Thanks all for your input. Am going to try to implement a trial of the suggestions as soon as I can get hold of a suitable project. Thanks heaps James

Bradley - it is definietly on the harder side to track down all the references when you want to make a change but there are some advantages in the design stages. The way I usually go about it is to select an inserted body and edit in context. Or alternatively build on top of whats existing if...

Hiya, thanks for quick replies. OK what you say makes sense and I know filenames will be unique but what about on check in when you're entering part numbers for every file that gets sucked into the vault due to a reference in the assembly? Have a good weekend Cheers James

howdy all, I have a conceptual problem with how to make PDMworks cope with the preferred designing method at the company I work for. As background we mainly work on individual and descrete industrial design projects of a smallish size with usually less than 50-60 parts. Firstly when an idea...

Hi there, have answered Q1 myself - using a mesh control COSMOS cannot locally enlarge a mesh to be larger the the global definition - it can ONLY refine. It can however using the h-adaptive strategy make a mesh both refined where it needs to be and coarser aswell. Have still not found a nice...

Hi all, Doing some testing with COSMOSworks (after toying with xPress a little) for the first time - going through tutorials and doing as much web scanning of any relevent tips I can find. One issue I have is that on a part I can apply a mesh control to locally reduce the mesh size however if...