Courses

Click the air to put an obstacle in its way

YSERA

Engineering with ease and precision.

Scroll into the wind catcher

يَسِيرَة

Malqaf · wind catcher

Before the machine, there was the wind.

A slanted hood on the roof faces the breeze and sends it down a shaft into the rooms below. No motor, no refrigerant, only pressure and geometry.

Taken apart

Every part has a job.

Intake, screen, duct, discharge. The materials have changed. The questions are the same: how much air, from where, and at what temperature?

The air in motion

Follow the air, and the building explains itself.

The same air

From past to now.

The shaft became a duct and the wind became a fan. The job is unchanged: bring the right air to the room.

YSERA

يَسِيرَة — الهندسة بسهولة وإتقان

HVAC · Refrigeration · CFD · Product Design · BIM · Courses

What we do

Services

Six disciplines — one standard.

0 1

HVAC Design

Load calculation, duct & system design, energy modelling and air-side optimisation.

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0 2

Refrigeration Design

Freezers, cold rooms & commercial cabinets — evaporator coils, circuit design, sizing and efficiency.

Read more →
0 3

CFD Services

Flow & thermal simulation — room comfort, equipment cooling and aerodynamics, proven before build.

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0 4

Product Design

Mechanical product development — from concept geometry to manufacture-ready detail.

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0 5

BIM Services

MEP modelling, coordination & clash detection — federated models built for delivery.

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Coming soon 0 6

Courses

Engineering education that passes the craft on.

Find out more →

What we build

Software

Revit add-ins, in development.

YSERA IIn development

Air Balance

Room pressurisation, envelope leakage and door-operability analysis for Autodesk Revit.

  • Solves the multizone pressure network and shows which rooms hold the polarity they were designed for.
  • Answers which doors a child, an adult or an older person can actually open against that pressure.
  • Tests seven design cases per room and states results as probabilities, not false precision.

For Revit 2022 to 2027

YSERA IIn development

Auto Annotation

Automated, overlap-free tagging and annotation for Revit plan views.

  • Tags ducts, pipes, fittings, accessories, mechanical equipment and air terminals.
  • One button to tag, refine, dimension and audit a view, as a single undo step.
  • Runs entirely on your own machine.

For Revit 2024 and 2025

YSERA IIn development

Reverse Riser

Rebuilds an MEP riser in Revit from a CAD riser diagram.

  • Reads a DXF riser and a linked architectural model, and reconstructs the riser as a logical graph you can review and correct.
  • Places real Revit piping in the detected shafts, sized, with fittings and valves.
  • Its library remembers how earlier projects were mapped and pre-fills the next one.

For Revit 2024

YSERA Courses

Courses coming soon

Watch online or offline in the YSERA Player.

We are preparing engineering courses that pass the craft on. Ask us what is planned, or follow YSERA to hear first.

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Who we are

About YSERA

يَسِيرَة — بسهولة وإتقان

The name comes from the Arabic يَسِيرَة, engineering with ease and mastery. YSERA is a mechanical engineering practice built on one conviction: rigorous engineering, delivered simply.

We design HVAC and refrigeration systems, simulate them with CFD before they are built, develop products to manufacture-ready detail, and coordinate MEP in BIM. The same craft will go into our courses, coming soon.

The mark. The arm of the Y is the slanted back of a malqaf, the wind catcher of traditional Arab architecture. The air it catches runs on to become the S.

06Disciplines
100%Engineer-led
24hTypical reply
See our portfolio

Resources

Free Tools

Announcements land here first.

Free tool · Live

Duct Sizer

Round & rectangular duct sizing from airflow and velocity limit, with friction rate.

Free tool · Live

Refrigerant Line Calc

Suction & liquid copper line sizing from cooling capacity, with velocity checks.

Free tool · Live

Comfort Checker

PMV / PPD thermal comfort to ISO 7730 from room conditions.

Free engineering utilities, offers and platform news will be published on this page — follow YSERA to catch them first.

LinkedIn Courses coming soon

Get in touch

Write to us.

يَسِيرَة — الهندسة بسهولة وإتقان

Tell us about your project or course question — we reply to every message and can arrange a Teams/Zoom call to discuss further.

support@ysera-eng.com
Consultancy for companies & teams — course questions welcome from everyone.
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