NINGBO INNO PHARMCHEM CO.,LTD. explores the critical role of Lithium Bromide (LiBr) in the sophisticated world of absorption refrigeration. This chemical compound, identified by its CAS number 7550-35-8, is a cornerstone technology for efficient cooling, especially in applications where waste heat is abundant or where energy efficiency is paramount.

The core of lithium bromide absorption refrigeration lies in its unique thermochemical cycle. Unlike conventional compression-based refrigeration, absorption systems utilize a thermal compression process driven by a heat source. In a water-lithium bromide system, water serves as the refrigerant, and LiBr acts as the absorbent. The process unfolds through several key stages:

Step 1: Evaporation - In the evaporator, water evaporates at a low pressure, absorbing heat from the space to be cooled, thus creating the chilling effect.

Step 2: Absorption - The water vapor then moves to the absorber, where the LiBr solution readily absorbs it due to its strong affinity for water. This absorption process concentrates the LiBr solution and requires heat removal.

Step 3: Desorption - The now diluted LiBr solution is pumped to the generator. Here, heat is applied, causing the water to boil and separate from the LiBr, thus regenerating a concentrated LiBr solution and producing water vapor.

Step 4: Condensation - The water vapor from the generator is condensed back into a liquid, releasing heat to a cooling medium.

Step 5: Throttling - The condensed liquid water is then returned to the evaporator, completing the cycle.

The effectiveness of LiBr in this cycle is attributed to its high hygroscopicity and its ability to maintain a low vapor pressure, facilitating efficient absorption of water vapor. This makes lithium bromide a highly sought-after chemical for HVAC systems and other industrial cooling applications. Its use contributes to reduced electricity consumption compared to traditional systems, especially when waste heat is available.

NINGBO INNO PHARMCHEM CO.,LTD. is a trusted supplier of high-quality Lithium Bromide, supporting industries that rely on the efficiency and reliability of absorption refrigeration technology. Understanding what is lithium bromide used for is key to appreciating its impact on energy-efficient cooling solutions.