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All, sorry I was out of the office for the last week; thank you for your valuable input. The occupancy sensor is a great idea, I was thinking more about timers but both working together would be a nice addition, good thinking. I will research those. Plus, I will ensure the insulation is adequate.

... yeah I think you are quite right. I was not aware of the amount of factors influencing the COP. The EER is 9.5. I think those units are old generation though. The application is a mine camp located in tropical South America, less than 500-ft above sea level, very humid environment. There...

Hello all HVAC Engineers, I have done some research on this site regarding COPs as I am trying to theoretically estimate the operating power consumption of our 6,000 BTU A/C units. One particular discussion (thread403-136672) mentions that COP, defined as cooling effect/power input, varies...

Hi Taylorg and jmw, Currently, I am patiently waiting for funding to start this project. However, in the contractual agreement, we do have a mention for fuel & lube oil consumption, engine output (garanteed to be the same) and the time to complete. There is no mention of power consumption of...

Good articles to read JMW, I subscribed to a few bunker wesites as well. The CIMAC group will issue in april their revised recommendation for fuel treatment plant design. However, I think I may be 'over reacting'... as I am sitting with our engine manufacturers and go through our fuel specs...

Taylorg, I was thinking, as I am perusing over your last post, about the specifications of our contract. I guess from your experience you have had exposure to this and I can't help but wonder if you did go through rough conversion projects. Would you be able to share some of that with me? I do...

Great input! Especially your point on contractual agreement taylorg. I had not thought of that. I will let you know how things work out after our meeting. JMW, the spreadsheet is great. I did have it already, along with the density one. I think you have posted that link on another thread so I...

Thank you JMW, I know the viscosity at the engine needs to be at 19 cSt according to the manufacturer. With the viscosity-temp graph I have, this means heating between 125C-140C depending if my fuel is a 380 cSt or a 700 cSt. Now I need to research more your other points as I do not know them...

JMW, There is a lab facility close to our power plant that can test most parameters in fuel; I asked them to look into finding the tools to be able to test them all. So we may be able to analyse all parameters within close proximity of the bunker delivery. The contract we have with the fuel...

Hi taylorg Thanks for the reply. To answer your questions... 1) The Concarbon should be less than 15%(Wt), the Al+Si should be less than 80 mg/Kg and the pour point should be less than 41oF. Now, all these data point are given to me from the contract we have with the supplier. No data for the...

Orenda, Actually I have a printed copy of your post dated Sept 05 related to the use of magnesium! I was reasearching this just last week. Thank you for your comments and I will surely need some assistance as we are moving along this project. I have an electrical background, therefore, bunker...

Orenda, Good tips. I will need to check with the operations folks at the bauxite plant with regards to fuel specs. As far as the diesel engines specs for vanadium content. I will look into that also. They are medium speed. A CIMAC recommendation did point to what you suggest with regards to...

Of course! Our HFO is currently specified to have a density of 993g/l, viscosity between 636-680 cst@ 50oC. We plan on heating it up in the storage tank to be at 380 cSt for entry in the treatment plant (which is also the requirement from our equipment suppliers). The fuel will be transfered...

Good day, I am leading a project which will convert our existing power plant from running on diesel fuel to run on heavy fuel oil. Hence, we will install a complete HFO treatment plant. There is a bauxite plant operation near our power station that also burn HFO in their kilns. I am curious...

EdDanzer, ultrasonic, alright, I have not really thought about it but could be a good idea... I presume you've had positive experience with them, what is your application? Is it for level detection or volume? Would you be able to recommend a certain manufacturer? You could reply to me directly...

I have found one company CIA Engineering (www.cia-engineering.com/conveyor.htm) who have such a laser monitoring system. Aside from this, there is some radiometric technologies but we also want to use it over an apron feeder and as such, I do not think the metal base of the feeder will work in...

Hello to all, I am interested in knowing if anyone of you have had experience using laser technology to measure the volume of material (mostly rocks and/or sand) on a conveyor belt, in a dusty, dirty and humid environment. Ideally, we want to measure the weight, however, the current...

Good day to all, I am just starting to look into the AS-Interface protocol as a possibility for one of our mine expansion and was looking to get some valuable input by folks who have experience with this protocol...I still do not know much about it. So anyone have installed devices on such a...