CFD and experimental analysis of solar crop dryer with waste heat recovery system of exhaust gas from diesel engine

2018 2nd International Conference on Energy and Environmental Science

能源学;生态环境科学

Meenakshi Reddy, R.^1 ; Siva Reddy, E.^1 ; Uma Maheswari, C.^2 ; Krishna Reddy, K.^3

Department of Mechanical Engineering, G. Pulla Reddy Engineering College, Kurnool, Andhra Pradesh, India^1

Department of Mechanical Engineering, Sri Venkateswara College of Engineering and Technology, Chittoor, Andhra Pradesh, India^2

Department of Mechanical Engineering, Brindavan Institute of Technology and Science, Kurnool, Andhra Pradesh, India^3

关键词: Advanced technology;    Agricultural fields;    Agricultural sector;    Comparison study;    Experimental analysis;    Flat-plate collector;    Seasonal periods;    Waste heat recovery systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/164/1/012010/pdf
DOI  :  10.1088/1755-1315/164/1/012010

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Crop drying is the method used to preserve the seasonal food crops during the non-seasonal periods in agricultural sector. In olden days, solar energy was used to dehydrate and preserve the food. Nowadays many new advanced technologies have been introduced. But due to electricity unavailability in rural areas and to utilize the abundantly available solar energy and the waste heat recovery of exhaust gas from the diesel engines used in the agricultural fields for water pumping. Our present work focuses on the CFD and experimental analysis of the solar crop dryer attached with flat plate collector and attached with diesel engine exhaust pipe heat exchanger. A comparison study was made between the crop dryer with and without exhaust pipe heat exchanger and found that when the exhaust pipe was attached there was an improvement in the increase in temperature compared without exhaust pipe. The copper tubes of exhaust pipe were also added with the fins to improve its heat exchanging efficiency.