Ideal Two-stream Heat Exchanger Balance

How to use Ideal Two-stream Heat Exchanger Balance

Use the supplied hot-stream cooling and capacity rate to determine heat duty, then derive the cold outlet by equal energy gain. Parallel and counterflow terminal differences use their own endpoint pairing. A log1p formulation preserves the equal-approach LMTD limit.

1. Enter model json (schema and units below).
2. Choose the stated convention and check the units and supported model.
3. Calculate, inspect the result, then copy or download it.

Good to know

• Plain decimal JSON numbers or strings, at most six fractional places, magnitude at most 1,000,000,000; raw numeric spellings and duplicate object members are checked. Exact rational arithmetic is capped at 8,192 bits. Text is at most 30,000 characters; a local JSON download preserves exact fractions or full stored approximate numbers. Celsius temperatures above absolute zero through 1,000,000 and positive capacity rates in kW/K. Constant heat capacities, steady state, no phase change or loss, and ideal parallel/counterflow only. Zero/negative approach is refused. No correction factor, fouling, area selection, pressure rating, equipment safety or installation advice.
• Local calculation only; no input persistence or external lookup. Text/JSON is limited to 30000 characters and output to 1000000 characters. Numeric model inputs and precision/work limits are stated on this page. Approximate JSON numbers retain full stored values; exact arithmetic outputs retain decimal or fraction strings. Unsupported states fail explicitly.