Ingeniero Navidad Scope definition
Before you spend: what you actually need, at what temperature, with what turnover. You end up with a scope document you can use to request comparable quotes.
Robert Navidad Correa · 20 years in industrial refrigeration
Your cold room will not fail today. It will fail in December, with the room full.
Calculation, diagnosis and project supervision for food plants, pharmaceutical facilities and contractors. Veracruz, the Gulf of Mexico, and remote across the country.
The failure chain
This is how a full inventory is lost.
It is never one failure. It is five, one after another, and each one takes months to settle into place. It reads like a row of dominoes because that is what it is.
- The condenser fans seize.
- The condenser stops rejecting heat and pressure climbs.
- The compressor, with no protections, has nothing to defend itself with and burns out.
- It fails on the day off: nobody hears it, nobody sees it.
- The badly built room does not hold the heat back, and the product crosses the safety line. There is no coming back from that.
Every one of those five links is broken by an inspection. Not one of them breaks on its own.
The case
I told him it was 500 dollars. He lost 250,000.
I found him sitting on the cash register, eyes red. He was not angry at me. He was doing the arithmetic.
Months earlier I had put in writing what needed correcting and what correcting it would cost. Five hundred dollars. It looked like an expense that could wait, and it waited.
The room did not fail that day. It failed when it was full, at the worst time of the year, with nobody on site to hear it. By the time someone opened the door the product had already crossed the temperature line. There is no coming back from that: that inventory is not recovered, not resold and not donated. It is thrown away.
I do not fix failures: I keep them from repeating. And that work looks expensive right up until the day you compare it against what not doing it cost.
500 USDcost of correcting it
versus
250,000 USDcost of not correcting it
Ratio: one to five hundred.
What I am selling right now
Pre-Season Cold Chain Inspection
In November and December the room runs at 100%, with the door opening all day long. If something is going to fail, that is when it fails. So it gets inspected now, while there is still time to correct it.
What it covers
- Industrial thermographic inspection with a FLIR E5-XT camera: panel, contactors and starters.
- Operating parameters per unit: pressures, temperatures, superheat and subcooling.
- Gaskets, doors, insulation and the defrost cycle.
- Report with a traffic-light priority list and a deadline for each item.
The guarantee
If the inspection turns up nothing you need to correct before the season, you do not pay me. A finding means a written item in the report with evidence behind it: a thermographic image, a measured out-of-range parameter or a verifiable physical observation. If there is none, there is no fee. You get the report either way. Travel costs outside the Veracruz metropolitan area are agreed in writing beforehand and are payable regardless.
I inspect one plant per day. The October and November calendar fills in the order requests come in. No invented slots: that is simply how many days the month has.
Everything else
We do not install: we guarantee results.
I do not sell equipment and I take no manufacturer commission. Engineering is quoted and billed separately from the hardware, always.
Full project engineering
Cold room design end to end: heat load calculation, equipment selection, piping, control, defrost and construction specification.
Calculation report for contractors
The signed document backing your selection: assumptions, formulas, results and reasoning. Delivered in 48 to 72 hours, remotely, anywhere in Mexico.
Second opinion before you buy
Your supplier's proposal, checked against the real load before you sign. In writing, with numbers.
Technical failure report
What failed, why, and whose responsibility it is. Independent document, usable with a supplier, an insurer or a court.
Project supervision and training
I oversee the work your contractor performs, through to commissioning. And I train your crew, on your own plant and your own equipment.
Every service is listed with its price on the Spanish services page.
Who shows up at your plant
Robert Navidad Correa
- 20years in industrial refrigeration
- 5countries with executed projects: Mexico, Cuba, Argentina, Brazil and Uruguay
- 6years lecturing in Thermodynamics, Fluid Mechanics and Industrial Plant Design at Universidad Cristóbal Colón (2015–2021)
- ·Industrial Engineer, Universidad Cristóbal Colón
- ·Refrigeration certified by Bohn
- ·Own FLIR E5-XT thermal camera
- ·Weekly technical segment on Televisa Veracruz
- ·Specifies and works with Danfoss, Bohn, Hispania and Unicom equipment
- ·Spanish, English and Portuguese
We do not install: we guarantee results.
I do not fix failures: I keep them from repeating.
Engineering is not an expense. It is insurance.
What people tell me before hiring me
Objections, answered
"We already have a maintenance contractor."
Maintenance repairs what already failed. Engineering keeps it from failing. Your service contractor keeps doing their job; I check whether the equipment you have matches the load you are asking of it. If the room is undersized, no amount of maintenance will fix that.
"It is expensive."
Compare it against one day of a stopped cold room with product inside. Do your own arithmetic: the value of that inventory, plus emergency refrigerated transport, plus the line stoppage. If your number comes out lower than the inspection, you are right and you should not hire me.
"Our supplier includes the engineering for free."
Whoever gives away the engineering charges for it in the equipment. And whoever earns a commission on the hardware should not be the one deciding which hardware you buy. I sell no equipment and take no manufacturer commission.
"We have no time right now."
That is exactly why it is done in September and not in December. In December you will not have time either, and on top of that the room will be full and the door will be opening all day. The inspection takes a few hours. The failure takes the whole week.
"Do you work outside Veracruz?"
Yes. Heat load calculations and calculation reports are delivered remotely anywhere in Mexico, in 48 to 72 hours. Site visits in Veracruz, the Gulf and wherever required. Projects executed in Mexico, Cuba, Argentina, Brazil and Uruguay.
Get in touch
Tell me what you have and what worries you.
I answer the same business day. If it is an emergency with product inside, use WhatsApp: it is faster.
Or write to me directly
WhatsApp +52 229 422 3532- Phone+52 229 422 3532
- Emailrnavidad@ingenieronavidad.com
- Based inVeracruz, Mexico
- LanguagesSpanish, English, Portuguese
- CoverageSite visits in Veracruz and the Gulf. Calculations and reports remotely across Mexico.