Winter Cooling

What are you talking about?

what prey is a DC in the questions context ?

What is DC?

If I understand your question correctly, you want to bring in winter air to keep a cold box... cold.

Simply circulating the outside cold air into the box should be more efficient than running a refrigeration pump. I thought about doing this a few years ago for a 50 cubic ft beverage cooler. My idea used 2 insulated PVC plumbing pipes (cheap), a small computer fan, 2 temperature sensors and a simple logic circuit to form a thermostat.

If outside air is below set-point AND cold-box air is above set-point, then fan=ON.
If outside air is above set-point AND cold-box air is above set-point, then compressor=ON (or Peltier device=ON).
If cold-box air is below set-point, all devices=OFF.

(of course a hysteresis window of a few degrees and a compressor lockout timer would be present)

I never got past the planning stage. There were 2 main reasons why it would not work for my project.
#1) I still needed a refrigeration compressor or Peltier device during 9 months of the year and energy cost savings for only 3 months was minimal.
#2) Running cumbersome air circulation lines to anything other than a dedicated walk-in cooler was just impractical.

Suggest you think it through carefully before spending time and money on something which may not be practical.

DC= Distribution center,

The main idea is to use the winter air to cool product in stead of a 400hp screw compressor which uses alot of energy ...

Keep in mind that I am located in canada where it is below freezing for 4 months of the year.

Why didn't you say so? And how can we keep in mind that you are in Canada since you never bothered to tell us.

You still haven't given enough information for a useful answer.

Like, how much volume/temp difference throughout the year/Percentage of volume in use over time, etc. etc. etc.

A cold air system similar to my suggestion above (except scaled up ) could probably be installed at a moderate cost. If properly controlled, it might help reduce energy costs. Difficult to estimate install cost or energy savings without detailed site construction plans and seasonal weather details. Suggest you consult a qualified HVAC Engineer for best estimates.

next time you post a question why not put all the information.

size of room. where its located where your located etc try to think ? if you was asked the same question from a complete stranger what information would you need to come up with a good response

Hot air rises, cold air sinks. Try installing an insulated stack to allow the warm air from your, what was it you said, dead cabbage was it? to rise out of the building. The insulation will prevent the frigid surroundings from cooling the air in the stack to such an extent that the system won't work. Cooler air will naturally flow in from somewhere else,so if you have a duct or something similar connected to the outside, icy cold air will be drawn in to take its place.

By the way, what's the temperature that you need your dead cabbage at? If it's above 0^oC, you'll need something to raise it to the required temperature as well.

P.S. Why not simply throw away your rotting cabbage instead of trying to keep it cool? I'm sure it must stink something awful.