Hybrid Adiabatic-Thermoelectric Cooling of Localized Workplaces
DOI:
https://doi.org/10.63527/1607-8829-2025-4-27-40Keywords:
hybrid cooling system, adiabatic cooling, thermoelectric cooling, parametric optimization, energy efficiency, thermal radiation, COPAbstract
Relevance. Ensuring regulatory microclimate parameters at localized workplaces, in particular at technological equipment control posts (crane cabins, operator cabins), under conditions of extreme thermal loads typical of metallurgical production, is a critically important scientific and technical task. Traditional compressor air conditioning systems operating in an environment with temperatures up to 60°C and intense infrared radiation demonstrate a significant drop in the coefficient of performance (COP) and high operating costs, which justifies the need to develop alternative, more energy-efficient solutions.
The aim of the work is to increase the energy efficiency of local air conditioning systems for mobile facilities by developing, theoretically justifying, and determining the optimal parameters of a new two-level hybrid system that combines the principles of adiabatic and thermoelectric cooling.
The research is based on the method of mathematical modeling of complex heat and mass transfer processes. The proposed system consists of two circuits: the external one, which creates an active thermal shield in the form of a blown shell with adiabatic cooling of the supply air, and the internal one, which provides final cooling of the working area using thermoelectric Peltier modules . A complex mathematical model was developed for the analysis, on the basis of which the problem of multifactor parametric optimization was formulated. The objective function was chosen to minimize the total energy consumption of the system while observing the limiting conditions regarding the parameters of the microclimate in the cabin and the physical limitations of the equipment operation.
The scientific novelty lies in the development of a new concept of a hybrid system, where the intermediate ventilated space performs a dual function: an active heat shield to intercept up to 80-90% of external radiative and convective heat input , and an integrated cooling medium for heat removal from the hot side of thermoelectric modules. A mathematical model has been further developed that comprehensively describes the synergistic relationship between the circuits. The developed optimization methodology, in contrast to existing approaches that consider components separately, allows finding optimal design (shell thickness, number of thermoelements) and operating (ventilation efficiency, current strength) parameters of the entire system to achieve a global minimum of energy consumption.
The developed approach is a scientifically sound basis for designing a new class of energy-efficient microclimate maintenance systems for mobile and stationary facilities (operator cabins, hardware compartments, electrical panels) operated in extreme industrial environments. The results of the work can be used to create specific engineering solutions that provide a significant reduction in operating costs and increased occupational safety.
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