Feasibility study and thermoeconomic analysis of cooling and heating systems using soil for a residential and greenhouse building

In the past decade, the use of renewable energy for heating and residential and greenhouse cooling structures has gained much interest due to the energy crisis, population growth, and the quantity of demand. This paper investigates heat transport and thermodynamic equations for a residential and greenhouse structure to simulate and examine the performance of a soil air conditioning system using fluid flow rate, pipe diameter, length, and fluid type features. The results show that the air-driven ventilation systems during summer outperform the rest of the HVAC systems. Moreover, decreasing the diameter and prolonging the pipeline positively affects the ventilation system's performance. In addition, the airflow rate positively correlates with our HVAC performance. We studied the performance of the air-conditioning systems in 4 cities in Iran. The Rasht's ventilation system is claimed to be the most effective for heating, and the Abadan cooling system showed outstanding results. We also compared the expenses of the soil cooling and conventional HVAC systems.