Dedicated Outdoor Air System

This paper proposes a dedicated outdoor air system (DOAS) with thermoelectric module radiant cooling panels (TEM-RCP). The DOAS involves the concept of a decoupled system with a parallel sensible cooling unit. This concept implies decoupling of ventilation and air-conditioning functions. The DOAS treats latent loads from outside air intake as a 100 % OA ventilation system. Additionally, a parallel sensible cooling unit, such as ceiling radiant cooling panel (CRCP), generally removes sensible loads.

A desiccant air-conditioning system has been suggested as being suitable to improve indoor air qualitydue to its superior humidity control. However, this system has the drawback of being less energyefficient, so it is typically used in conjunction with co-generation systems or solar heating systems toimprove its energy efficiency. In previous studies, we proposed a new type of desiccant air-conditioningsystem combined with a CO2 heat pump, and studied its applicability through experiments andsimplified calculations.