Apparatuses, systems, and methods to measure desiccant concentration in air conditioning systems

A system for determining a liquid desiccant concentration in a liquid desiccant air conditioning system (LDAC) comprising,

• a level tank having a top configured to be in fluid communication with a basin of the LDAC such that the level tank can contain liquid desiccant, wherein the level tank has a length, width, and height and the liquid desiccant contained in the level tank has a top;
• a level sensor operationally coupled to the level tank to determine a height of the liquid desiccant contained in the level tank;
• a pressure sensor operationally coupled to the basin of the LDAC to determine a mass of the liquid desiccant contained in the basin, wherein the basin has a known geometry;
• a concentration processor operationally coupled to the level sensor and the pressure sensor wherein the concentration processor calculates a concentration of the liquid desiccant in the basin based on the height of the liquid desiccant and the mass of the liquid desiccant, and optionally corrects for desiccant temperature, wherein the concentration processor outputs the concentration of the liquid desiccant in the basin.