Views: 0 Author: Site Editor Publish Time: 2026-02-10 Origin: Site
In heat pump systems, L-type heat exchangers serve multiple thermal functions depending on where they are installed and how the refrigeration cycle is configured.
When used as an evaporator, the L-type heat exchanger:
Absorbs heat from ambient air or process exhaust air
Evaporates the refrigerant at low temperature
Provides stable heat pickup even in compact or containerized layouts
This configuration is common in air-source industrial heat pumps.
As a condenser, the L-type heat exchanger:
Releases heat from the refrigerant to air or secondary fluids
Condenses high-pressure refrigerant vapor into liquid
Supplies useful heat for space heating, process heating, or drying
The 90° airflow allows efficient integration with ducting or fans.
In transcritical CO₂ heat pump systems, the L-type heat exchanger functions as a:
Gas cooler rather than a condenser
Sensible heat exchanger that cools high-pressure CO₂ gas
Key component for achieving high hot-water outlet temperatures
In reversible heat pumps, an L-type heat exchanger can:
Act as an evaporator in cooling mode
Act as a condenser in heating mode
Support year-round operation with optimized airflow paths
Beyond thermal duty, the L-type design:
Redirects airflow by 90 degrees
Enables compact system layouts
Separates air intake and discharge to reduce recirculation
Improves packaging in modular and skid-mounted heat pumps
By maintaining smooth airflow and sufficient heat transfer area, L-type heat exchangers help:
Maintain stable COP (Coefficient of Performance)
Reduce fan power penalties
Support consistent performance under varying loads
L-type heat exchangers in heat pumps can function as evaporators, condensers, or gas coolers, while simultaneously improving airflow routing and system compactness. They are especially valuable in industrial, modular, and space-constrained heat pump installations.
