Question 1

What types of heat exchangers does ExCoil support?

Accepted Answer

ExCoil supports DX evaporators, DX condensers, chilled water coils, hot water coils, steam coils, and dry coolers. Each module includes full thermal analysis using NTU-ε and LMTD methods.

Question 2

Which refrigerants are supported in ExCoil?

Accepted Answer

ExCoil supports R32, R410A, R134a, R22 (legacy), R290 (propane), and R1234yf. Each refrigerant includes full saturation, superheated vapor, and subcooled liquid property tables.

Question 3

Can I export results from ExCoil?

Accepted Answer

Yes. ExCoil generates professional PDF reports with technical drawings, dimensional tables, and performance data. You can also save projects as .excl files to reopen later, and export to CSV.

Question 4

Does ExCoil work on mobile devices?

Accepted Answer

ExCoil is a Progressive Web App (PWA) that works on desktop and mobile browsers. It can be installed on your device for offline access. For complex calculations, a desktop browser is recommended.

Question 5

What calculation methods does ExCoil use?

Accepted Answer

ExCoil uses the NTU-ε (Number of Transfer Units - Effectiveness) method and LMTD (Log Mean Temperature Difference) method. The DX evaporator uses a segmented solver with wet/dry coil detection. The DX condenser uses a 3-zone segmented solver (desuperheating, condensation, subcooling).

Question 6

Is ExCoil suitable for industrial HVAC projects?

Accepted Answer

Yes. ExCoil is designed for professional HVAC&R engineers working on industrial and commercial projects. It handles coil sizing, selection, and verification with engineering-grade accuracy, including energy balance validation and calibration factors.