Water/water heat pump

high-temperaturehot waterenergy saving

Product Overview
The lithium bromide (LiBr) absorption heat pump is a thermally driven heat pump using vacuum absorption technology. It is powered by heat sources such as steam, natural gas combustion, flue gas or superheated hot water instead of conventional electricity. The unit recovers low-grade heat (cooling water, geothermal water, flue gas condensation water, industrial process wastewater) and upgrades it to intermediate and high-temperature hot water for industrial processes, comfort heating and district heating.

Information
LiBr absorption heat pumps are offered in two categories: the 1st category recovers heat from low-temperature sources and provides outlet water temperatures of 40–100°C; the 2nd category recovers heat from intermediate-temperature sources and delivers superheated hot water at 100–170°C.

Energy Saving
Approximately 40% or more of heat from low-temperature sources can be recovered instead of being wasted. Depending on driving source and site conditions, the Coefficient of Performance (COP) of Shuangliang 1st category units can reach 1.6–2.4.

Function
The 1st category units are suitable for producing 40–100°C hot water for various industrial processes, comfort heating and district heating; the 2nd category provides 100–170°C superheated hot water where higher temperatures are required.

Capacity Range

• Heating: 1 MW ~ 100 MW

Driving Sources

• Steam
• Hot water
• Flue gas
• Natural gas
• Light oil
• Biogas

Typical Cases

• Datang Xigu Thermal Power Plant (Lanzhou, China) — 6×LiBr Absorption Heat Pump; Total heating capacity: 290.76 MW
• University of Bern (Switzerland) — 1st Category LiBr Absorption Heat Pump; Total heating capacity: 930 kW
• AFK (Munich, Germany) — 1st Category Direct-Fired Absorption Heat Pump; Total heating capacity: 5000 kW

Technical Specifications

• Product type: Lithium Bromide (LiBr) Absorption Heat Pump
• Categories: 1st category (low-temperature source) and 2nd category (intermediate-temperature source)
• Outlet temperature range: 1st category 40–100°C; 2nd category 100–170°C
• Estimated energy recovery: ~40% or above
• Coefficient of Performance (COP) for 1st category: approx. 1.6–2.4
• Heating capacity range: 1 MW to 100 MW
• Driving sources: Steam, Hot water, Flue gas, Natural gas, Light oil, Biogas
• Applications: industrial processes, comfort heating, district heating