Designing, manufacturing and experimental examining of hot air production system for heating and drying that used with heat pump and solar collector

In this study; in order to design a system that is cheap quality and sustainable made of hot-air production system design and manufacture used with solar system and heat pump. The system for process control, PLC (Programmable Logic Controller) and SCADA (Supervisory Control and Data Acquisition) systems were designed. All data has been followed on a computer screen during drying and by the software have been recorded. Design, tested under different conditions and energy analysis of design is made.In this system; energy needs provided by heat pump and solar collectors and temperature, relative humidity, velocity and weight of the product in the space were controlled with PLC. Thus, products were dried with less energy input and as a more controlled rate. Places were heated more economically. The system is capable of three maneuvers. In addition, while heating or drying is performed, the heat can be stored by the system.In this study, solar energy and heat pump can be used separately or together. In the different air temperatures and air velocities, heating and drying operations were carried out by solar assisted heat pump hot air production device.In the experimental examination of the system, selected a space for heating and heating process of this area was accomplished. For the experimental examination of the system were selected a space for heating. After that, heating process of this space was accomplished.In the designed and manufactured system, ?Agaricus Bisporous-Button? mushroom was dried and has been analyzed experimentally. In drying system, 2 000 g of sliced mushrooms (4 mm thick) and 0.9 m / s and 1.2 m / s air speeds, from the initial moisture amount % 93 the last moisture amount up to 7% moisture (dry basis) 30-35 °C, 45 °C and 55 °C were dried. In this experiments, drying operations have been done by using only heat pump (HP), only solar energy (SE) and both them (SAHP-solar assisted heat pump). Mushrooms were dried in 220-250 minutes by using only heat pump, 165-300 minutes by solar energy, 190-300 minutes by solar assisted heat pump.PLC-controlled solar-assisted heat pump system COP values of the average were calculated 2.2, 3.5 and 3.0 respectively by using only the heat pump, using only solar energy and using solar-assisted heat pump. Energy utilization rates (EUR) were calculated averagely 0.45 for heat pump, 0.63 for solar energy and 0.52 for the whole system. Specific moisture extraction rates (SMER) were calculated averagely 0.36 kg/kWh for heat pump, 0.8 kg/kWh for solar energy and 0.62 kg/kWh for the whole system. The data was obtained as a result of experiments and analysis. As a result, designed system to be efficient for the intended target has been concluded.Key Words : Heating, drying, heat pump, solar energy, mushroom, energy analysis