Performance evaluation and analysis of forced draft paddy straw bale combustor for heating applications

dc.contributor.advisorSethi, V.P.
dc.contributor.authorBiswajeet Singh
dc.date.accessioned2019-01-13T04:00:03Z
dc.date.available2019-01-13T04:00:03Z
dc.date.issued2018
dc.description.abstractIn this study, performance evaluation and analysis of predesigned forced draft paddy straw bale combustor (FDPSBC) furnace with intermittent pilot fuel injection system (PFIS) and embedded heat exchanger for generating high temperature flue gas for water heating and utilizing heat of generated flue gas and hot water to heat the greenhouse through the predesigned flue gas heat sink pipe network (FGHSPN) and hot water heat sink pipe network (HWHSPHN) is presented. Complete combustion of compressed bale of 20kg is achieved with the use of PFIS which delivered 1.5ml of diesel after every 3 min to maintain the flame sustainability.Stainless steel heat-exchanger has 62L water holding capacity circulating at the rate of 36 litre per min using the heat of flue gas and has the capacity to heat 1000L of water within three hours. Heat of combustion (>90% combustion efficiency)was utilized to generate flue gas at 350°C and hot water above 65°C applied to 100 m2area greenhouse heating located at Punjab Agricultural University, Ludhiana (30.56°N), Punjab, India by the predesigned two heat sink pipe networks; FGHSPN andHWHSPN laid inside the greenhouse for transfer of heat by radiation and free convection modes. Heat transfer models were developed to carry out the heat transfer analysis of combustor furnace, FGHSPN and HWHSPN. Developed mathematical models showed that insulation provided inside the combustor furnace reduced the heat loss by 91.7% through the combustor furnace wall whereasFGHSPN performed much better as compared to HWHSPN and was able to transfer 9.6 kW (74%) whereas HWHSPN could transfer 3.38 kW (26%) of heat respectively out of the total heat (12.98 kW) generated by both the networks to maintain the greenhouse air temperature 10°C higher than the ambient air temperature after sunset hours as validated by experimental trials conducted on 29 of November,2017 with a RMSE of 3.44.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810090129
dc.keywordsBiomass combustor, heat transfer, mathematical model, greenhouse heating, heat sink pipeen_US
dc.language.isoenen_US
dc.pages78en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemPerformance evaluation and analysis of forced draft paddy straw bale combustor for heating applicationsen_US
dc.subMechanical Engineeringen_US
dc.subjectnullen_US
dc.themePerformance evaluation and analysis of forced draft paddy straw bale combustor for heating applicationsen_US
dc.these.typeM.Techen_US
dc.titlePerformance evaluation and analysis of forced draft paddy straw bale combustor for heating applicationsen_US
dc.typeThesisen_US
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