The system performance of the solar assisted PVT (photovoltaic-thermal) heat pump (SA-PVT-HP) system was experimentally investigated on a typical winter day in Shanghai. Finally, the detailed exergy and economic analysis uphold the sovereignty of the proposed technique. burlap based cooling with single and double layers were tested under clear weather, which resulted in a power improvement of 12–15% and 18–21% respectively compared to reference module. Even the power enhancement and second law analysis followed the same trend. A maximum 28.6% temperature drop was experienced in burlap based system against the reference module, which narrowed to 15.7% in evaporative cooling and 14.4% in PCM cooling. During haze weather, the day-long testing upholds the burlap single layer arrangement over phase change material-based and evaporative cooling. As water siphoning techniques are always promising among multiple passive methods, the present experimental study is focused on energy, exergy, environment, and economic analysis with burlap fabric as a siphoning agent.

The optimum simple payback was 20.68 years however, the increase in the energy cost can reduce it by up to 85%.ĭespite the supremacy of active cooling methods in the thermal management of photovoltaic modules, the passive cooling approach is still prominent due to its simplicity, sustainability, and substantial heat transportation capability. Finally, a sensitivity analysis analyzed the influence of purchase electricity and natural gas costs and the electricity sell-back price on the system. The coefficient of performance of the desiccant air conditioning was 0.37. The optimal structure showed a total energy efficiency of 0.49 for the solar collectors and 0.16 for the solar panels. A thermoeconomic optimization determined the set of parameters that minimize the simple payback period. A parametric study defined the system’s setup. The plant was modeled in TRNSYS and simulated for 1 year.

The system combines photovoltaic/thermal collectors, photovoltaic panels, and a biomass boiler coupled with reverse osmosis and desiccant air conditioning. The overall plant layout supplies electricity, space heating and cooling, domestic hot water, and freshwater for a residential building. This paper presents a thermoeconomic analysis of a polygeneration system based on solar-assisted desiccant cooling.

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