Sizing a heat exchanger or verifying duty on an existing unit? Enter hot and cold side temperatures, flow rate, fluid specific heat, and specific gravity. Get instant LMTD, heat duty in BTU/hr, UA product, and thermal effectiveness for both counter-flow and parallel-flow configurations.
WHAT IT CALCULATES:
- Log Mean Temperature Difference (LMTD)
- Heat duty in BTU per hour
- UA product (overall heat transfer coefficient times area)
- Thermal effectiveness (actual vs maximum possible heat transfer)
FLOW CONFIGURATIONS:
- Counter-flow (hot and cold fluids flow in opposite directions)
- Parallel-flow (hot and cold fluids flow in the same direction)
INPUTS:
- Hot side inlet and outlet temperatures
- Cold side inlet and outlet temperatures
- Flow rate (GPM)
- Fluid specific heat (Cp)
- Fluid specific gravity
KEY FEATURES:
- Counter-flow and parallel-flow support
- Instant results as you adjust inputs
- Clean, field-friendly interface
- Works completely offline
- No account or login required
Built for process engineers, mechanical designers, and plant operators who need quick heat exchanger performance calculations during design, commissioning, or troubleshooting.
