A high-temperature heat pump (HTHP) upgrades low-grade waste heat to useful process temperatures of 80 to 120°C, replacing steam boilers or direct electric heaters in industry. This article covers selection and integration.
How It Differs from a Standard Pump
An HTHP uses refrigerants and compression ratios tuned for high lift. The trade-off is lower COP as delivery temperature rises — plan the duty with the heat pump selection calculation method.
主な用途
- Process hot water and CIP loops.
- Low-pressure steam generation.
- Preheating in drying and evaporation, paired with an industrial waste heat recovery case.
Performance Targets
| Delivery temp | Typical COP |
|---|---|
| 60°C | 4.0–5.0 |
| 90°C | 3.0–3.8 |
| 120°C | 2.0–2.8 |
Integration Tips
Keep the waste-heat source above the minimum entering temperature and size the sink for the real process flow. For the wider recovery context, see heat pump waste heat recovery. An HTHP is the bridge that turns “too-cold-to-use” reject heat into saleable process energy.
Siting and Controls
An HTHP earns its keep only when a genuine high-temperature use exists, process hot water, low-pressure steam, or drying preheat, and when a steady low-grade source is available to feed it. Place the evaporator as close as practical to that source to limit pumping losses, and size the sink for the real process flow rather than a peak, since oversizing the high-lift compressor is expensive. Controls should prioritize the recovery duty: run the HTHP whenever the waste-heat source and the process demand coincide, and let a buffer tank bridge short mismatches. Refrigerant choice and discharge-temperature limit matter more here than in a comfort pump, so confirm the working fluid can reach the needed delivery temperature safely. Where the process can accept a lower supply temperature, doing so lifts COP materially, so negotiating the process setpoint downward is often the cheapest performance gain.
よくある質問
What temperatures can a high-temperature heat pump deliver?
Typically 80 to 120 degrees C, replacing steam boilers or direct electric heaters in suitable industrial processes.
Why does COP fall as delivery temperature rises?
Higher lift requires higher compression ratios, so more work is needed per unit of heat delivered.
What is the ideal source for an HTHP?
A steady low-grade waste-heat stream such as exhaust, wastewater, or process reject, above the minimum entering temperature.
How can HTHP performance be improved without new hardware?
Lowering the required process supply temperature, where the process allows, raises COP significantly.
よくある質問
What temperatures can a high-temperature heat pump deliver?
Typically 80 to 120 degrees C, replacing steam boilers or direct electric heaters in suitable industrial processes.
Why does COP fall as delivery temperature rises?
Higher lift requires higher compression ratios, so more work is needed per unit of heat delivered.
What is the ideal source for an HTHP?
A steady low-grade waste-heat stream such as exhaust, wastewater, or process reject, above the minimum entering temperature.
How can HTHP performance be improved without new hardware?
Lowering the required process supply temperature, where the process allows, raises COP significantly.
適切な熱交換器を選定
当社のエンジニアが風量、温度、圧力損失の予算に合わせてコアを設計し、用途に応じて板式・回転式・ヒートパイプ回収を選定します。以下をお読みください： 熱交換器ガイド 、または仕様についてお問い合わせください。
関連製品
HVAC および換気向けの板式・回転式・ヒートパイプ回収。
空気と液体用の大表面積固定コア。
大風量向け高効率エネルギー回収。
清浄用途向けの受動的・完全分離流。