Useful heat
Thermal energy deliberately delivered across a boundary at a temperature useful to a downstream process or end use — process heat, hot water, and heat intentionally supplied to another conversion stage (pass 40), without pretending the heat is necessarily the system's final exported service.
Atlas record: 4 claims reference this output — 3 established and 1 demonstrated.
Explorerelations · routes · sources · cite
Relations
- heat delivered at a temperature above the point of use
- free mixing without a membrane dissipates the whole free energy as heat
Enumerated routes through this · 59 (showing 24)
- Combustion heater (boiler, furnace)2/2 est · demonstrated
- Regenerative elastocaloric heat pump1/2 est · demonstrated
- Heat exchanger3/3 est · demonstrated
- Forced-circulation heat-delivery loop3/3 est · demonstrated
- Solar thermal collector (hot water)3/3 est · demonstrated
- PWR primary heat delivery5/5 est · demonstrated
- Radioisotope heater unit7/7 est · demonstrated
- Concentration gradient → Dufour effect → Heat flow → Useful heat3/3 est · candidate
- Temperature gradient → Thermal expansion → Mechanical stress or strain → Elastocaloric effect → Useful heat3/4 est · same energy form
- Pressure gradient → Elastic deformation → Mechanical stress or strain → Elastocaloric effect → Useful heat3/4 est · extends a recorded pathway
- Mechanical vibration → Resonant vibration → Mechanical stress or strain → Elastocaloric effect → Useful heat3/4 est · candidate
- Mechanical vibration → Elastic deformation → Mechanical stress or strain → Elastocaloric effect → Useful heat3/4 est · candidate
- Temperature gradient → Soret effect → Concentration gradient → Dufour effect → Heat flow → Useful heat5/5 est · same energy form
- Temperature gradient → Thermal emission → Photons → Photothermal absorption → Heat flow → Useful heat5/5 est · same energy form
- Chemical potential difference → Combustion → Temperature gradient → Heat conduction → Heat flow → Useful heat5/5 est · extends a recorded pathway
- Chemical potential difference → Combustion → Temperature gradient → Advective heat transport → Heat flow → Useful heat5/5 est · extends a recorded pathway
- Electric potential difference → Peltier effect → Temperature gradient → Heat conduction → Heat flow → Useful heat5/5 est · extends a recorded pathway
- Electric potential difference → Peltier effect → Temperature gradient → Advective heat transport → Heat flow → Useful heat5/5 est · extends a recorded pathway
- Electric potential difference → Ettingshausen effect → Temperature gradient → Heat conduction → Heat flow → Useful heat5/5 est · extends a recorded pathway
- Electric potential difference → Ettingshausen effect → Temperature gradient → Advective heat transport → Heat flow → Useful heat5/5 est · extends a recorded pathway
- Incident radiation flux → Photothermal absorption → Temperature gradient → Heat conduction → Heat flow → Useful heat5/5 est · extends a recorded pathway
- Incident radiation flux → Photothermal absorption → Temperature gradient → Advective heat transport → Heat flow → Useful heat5/5 est · extends a recorded pathway
- Radiative imbalance with the sky → Radiative sky cooling → Temperature gradient → Heat conduction → Heat flow → Useful heat5/5 est · extends a recorded pathway
- Radiative imbalance with the sky → Radiative sky cooling → Temperature gradient → Advective heat transport → Heat flow → Useful heat5/5 est · extends a recorded pathway
Cited sources · 3
- [1]A. Bejan. Advanced Engineering Thermodynamics (4th ed.) (2016)
- [2]S. R. de Groot, P. Mazur. Non-Equilibrium Thermodynamics (1962)
- [3]J. Tušek et al.. A regenerative elastocaloric heat pump (2016)
Cite this entity
Physical Transformation Atlas (2026). entity output:useful-heat: Useful heat. Dataset revision rbfbfcbb70e57 (hash of the canonical data). https://physical-transformation-atlas.wldud5192.workers.dev/e/output/useful-heat
Ids and matrix addresses are stable across revisions; the revision hash identifies the exact canonical files the record was compiled from and is meta.data_hash in every /api export. Reuse terms: see the license field in any export.