Search found 93 matches

by ice-n-tropics
Fri Sep 08, 2017 4:51 pm
Forum: Automotive Air Conditioning Forum
Topic: A slightly differnt A/C system
Replies: 31
Views: 19236

Re: A slightly differnt A/C system

7.2 for supercharger at 18
Above my pay grade but knew CR must be reduced. hope for your success
Are you going to Pikes Peak? I'll be there pretty soon
by ice-n-tropics
Fri Sep 08, 2017 5:53 am
Forum: Automotive Air Conditioning Forum
Topic: A slightly differnt A/C system
Replies: 31
Views: 19236

Re: A slightly differnt A/C system

Oil separator improves evaporator heat transfer
Oil (liquid or foam) insulates the warm evaporator tube from the cold refrigerant and negates any imaginary benefit.
hotrodac
by ice-n-tropics
Thu Sep 07, 2017 8:20 am
Forum: Automotive Air Conditioning Forum
Topic: New Sanden squalling above 3000 rpm
Replies: 11
Views: 6697

Re: New Sanden squalling above 3000 rpm

I can purchase your 2850 crpm problem. Once made 508/5H14 acceptable by limiting suction valve opening, but difficult for you. Might back off anti rotation gear adjustment nut 15 degrees and restaking. See cutaway in "How to Air Condition Your Hot Rod" page 33. Mufflers are easier and simp...
by ice-n-tropics
Thu Sep 07, 2017 7:53 am
Forum: Automotive Air Conditioning Forum
Topic: A slightly differnt A/C system
Replies: 31
Views: 19236

Re: A slightly differnt A/C system

"Oil flooded screw compressor" : So that is where you gained oil separator expertise. In early days I stopped radio noise from blower motor by installing diode between motor leads when changing between permanent vs series wound or viceversa.. York application has less than 2% oil circulati...
by ice-n-tropics
Tue Sep 05, 2017 2:04 pm
Forum: Automotive Air Conditioning Forum
Topic: A slightly differnt A/C system
Replies: 31
Views: 19236

Re: A slightly differnt A/C system

Suspect he has an oil pumper or txv MOP defective. Goal for rotary wing is total of 50 lbs. so saved weight can divert to fuel (but now at 82 lbs.+). military version 50% of cooling is for electronics. They actually CNC the air fan for turbo axial rotary fan compactness. If we could design compact 1...
by ice-n-tropics
Mon Sep 04, 2017 7:15 pm
Forum: Automotive Air Conditioning Forum
Topic: High side line temp from comp thru condensor and up to h block
Replies: 5
Views: 3861

Re: High side line temp from comp thru condensor and up to h block

Hey Tim, don't wet the condenser like I wetted the wooden floor boards in my MG when they caught fire from the hot exhaust in the boon docks. Stinks! Condenser can be considered 3 different heat dissapators: 1) Top is desuperheater at decreasing gas only temps with sensible heat exchange without cha...
by ice-n-tropics
Mon Sep 04, 2017 6:57 pm
Forum: Automotive Air Conditioning Forum
Topic: A slightly differnt A/C system
Replies: 31
Views: 19236

Re: A slightly differnt A/C system

sanden.com has TRSE07 scroll shown with 1KW at 1000rpm. Sanden semihermetic on Honda el vehicle has very small scroll. txv with low MOP (max operating pressure) to restrict mass flow during cool down may already be incorporated to limit power input. Isentropic efficiency for scroll at 1000 crpm is i...
by ice-n-tropics
Mon Sep 04, 2017 7:49 am
Forum: Automotive Air Conditioning Forum
Topic: A slightly differnt A/C system
Replies: 31
Views: 19236

Re: A slightly differnt A/C system

One concern is excessive oil quantity would increase running torque and reduce refrigerant mass flow. I was involved in copter application of scroll compressor where weight and el motor torque limits immediately rule out the 2 banger. Personally, I'd reduce weight 60% and increase isentropic efficie...
by ice-n-tropics
Mon Sep 04, 2017 7:21 am
Forum: Automotive Air Conditioning Forum
Topic: High Head and Low Vaccum Press. Still - New EXP Valve and Condensor
Replies: 1
Views: 2027

Re: High Head and Low Vaccum Press. Still - New EXP Valve and Condensor

The Delphi/GM scroll pressure spike phenomeon is under drag racing acceleration conditions with significant cool refrigerant mass accumulated downstream of the txv. The initial PRV refrigerant release due to fan failure could be part of the leak. Scroll comp develop some aluminum fines (gray refrige...
by ice-n-tropics
Mon Aug 21, 2017 10:52 am
Forum: Automotive Air Conditioning Forum
Topic: Printed a Shaft Seal Installer Tool on my 3D printer
Replies: 10
Views: 6378

Re: Printed a Shaft Seal Installer Tool on my 3D printer

Old school metal remover,
Nice sand casting and machining and branding

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