Omega thermocouples

[dzorde]

Last time I talked to Rob, he'd just started working for Tickford (the
musclecar side of Ford Australia).  Since then I have not been able to reach
him.  Can anyone else elaborate on this, mabye we can track him down and get
him back on the list.

Dan     dzorde at geocities.com

>After reading this thread, I searched the archive (thanks alot for
>for the interface!) for EGT and found an article written by 
>Robert Dingli in May 95.  I don't think Robert got around to post
>his lab results.  Is Robert still on the list?  Anyone know how
>to get in touch with him?  His address in .sig is no longer good...
>
>[beginning of article from archive]
>
>Hi all,
>
>I've been waiting for some labs results to empirically answer the original 
>query about EGTs vs AFR.  Our test rig (Lancia 2lt 16V on motoring 
>dynamometer) is wired with a thermocouple in each exhaust runner and one 
>in the collector.  (It also has thermocouples in every other nook and 
>cranny.)  We have also individually plumbed each runner to the exhaust gas 
>analyser for CO, CO2, O2, HC and NOx measurements.  I will post some EGT 
>characteristics soon.
>
>> 
>> My understanding is that combustion temperature is highest at stoich and
>> declines as mixture is made richer or leaner. Question: why is EGT
increasing as
>> mixture is leaned. Is it because combustion temp is increasing as rich
>> mixture is brought nearer to stoich? Is it because lean mixture burns
>> slower and is still burning as the exhaust valve opens. Or none of the
>> above?
>> 
>> Thx, Harmon
>> 
>
>>From my understanding, you are correct on both accounts.  A thrid factor is
>that as the mixture is leaned out, there is less fuel energy to ignite and
>eventually the EGTs will drop off (as does peak cylinder pressure and NOx
>emmissions).
>
>Robert
>-- 
>----------------------------------------------------------------------
>             Robert Dingli           r.dingli at ee.mu.oz.au
>
>Power and Control Systems                 Thermodynamics Research Lab
>Electrical Engineering                    Mechanical Engineering
>   (+613) 344 7966                           (+613) 344 6728
>  University of Melbourne, Parkville, 3052, Victoria, AUSTRALIA
>----------------------------------------------------------------------
>[end of article from archive]
>-- 
>Frank M. Lin	  | G.speed - Z.Speed Trust HKS DC-Sports Razo/Carmate Soei
>fmlin at ccnet.com   | Web page - http://www.ccnet.com/~fmlin/gspeed.html
>EG2, 2:0x @ Sears | Info sheet - "finger fmlin at ccnet.com > gspeed.info"
>
>Fastest 1/4 Mile Honda's - http://www.ccnet.com/~fmlin/eg2/fastest
>