Thermogain Wrap-Around Heat Pipe
Essential for dehumidification applications and energy cost reduction
Wrap-around heat pipe design provides pre-cooling and reheat for air conditioning systems, significantly reducing energy consumption in humid climates. By removing sensible heat before the cooling coil and providing free reheat afterward, this configuration dramatically improves dehumidification efficiency while lowering operating costs.
Description
With ASHRAE Standard 62 (Ventilation for Acceptable Air Quality) , new efforts were introduced to increase indoor air quality. These changes inevitably lead to more outdoor air being brought into buildings and consequently greatly affected the heating, cooling and dehumidification costs.
Luckily, ways to offset these increases were also developed and today, heat wheels, flat plate exchangers and standard heat pipes are widely used to help reduce heating and cooling costs. Concerning dehumidification, the most commonly used solution remains the Thermogain wrap-around heat pipe (TWHP).
Each Thermogain wrap‑around heat pipe is custom‑engineered to match your cooling coil dimensions, resulting in a compact, easy‑to‑install solution—even for retrofit applications. Its all‑aluminum construction, featuring integrally turned fins, requires no external power or connections, ensuring long-lasting, maintenance‑free performance. In addition, Thermogain heat pipes not only deliver significant reductions in operating costs, but their use in new systems often allows for smaller cooling coils, dramatically shortening payback periods.
Key Benefits:
- Reduces compressor load and energy consumption
- Provides free reheat for improved comfort
- Enhances dehumidification performance
- Lowers operating costs in high-humidity applications
- Ideal for coastal and southern climates
Key Applications:
- Supermarkets and retail facilities
- Natatoriums and aquatic centers
- Humid climate HVAC systems
- Process cooling applications
- Any facility requiring enhanced dehumidification
How it Works
Operating Principle
Unlike standard energy recovery components, TWHP does not recover energy from one airstream to another but rather transfers it from one point to another within the same airflow. On the free pre-cool side (location A to B), the TWHP greatly helps in reducing the outdoor air temperature, bringing it close to its dew point. On the free reheat side (location C to D), it uses the heat contained in the outdoor air to re-heat the air from the cooling coil to comfortable levels. The end result being great energy savings and reduced operating costs.
Base Theory
In each individual tube, evaporation occurring on the Evaporator End creates a pressure gradient that forces the vapor to a remote area called the Condenser End. The vapor, now on the Condenser End and subject to much colder temperatures, condensates on the inner tube surface and returns, with the help of capillary pumping forces within the wick structure, to the Evaporator End to complete the cycle. The result is a perpetual motion machine without moving parts and requiring no energy of its own.
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