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Nadaf et al., International Journal of Advanced Engineering Technology E-ISSN 0976-3945 Table 5: Preheating of different biodiesels Authors Acharya, Mishra, Rath, & Nayak, ( 2011) M. C. Navindgi,et.al (2011) R. Raghu,et.al (2011) Lutfia,et.al(R, 2009) A.K.Agarwal,et.al (Yang et al., 2003) H Masjuki, et al (2008). Dinesh P(2012) P. P. Sonune(2012) ER Ram Rattan (2012) R. Ragu,G Ramdas (2011) Ahanasios(2011) Kamal Kishore Khatri (2010) V Pandiyarajan (2010) Bhupender singh chauhan (2010) Canacik et al. Somu Chokraborthy (2009) Mhia Md(2007) Pugachev (2001) A K Hussain(2012) Mehta et al. Chauhan etal. (2010) Hazar and Aydin (2010) T. Venkateswara Rao et.al.(2008) M.Prabhakar et.al. M. Nematullah Nasim Oza Nityam P. Md A. Hossain, et al(2012) Hevandro Colonhese Delalibera1 Ch. Styanarayana Mr. Janak Rathavi, et al. CONCLUSIONS Vegetable. oil /Biofuel Kusum and Karanja oil’s Neem, Mahua, Linseed and Castor oil. Rice bran oil(RBME) Petrol Karanja oil WHR Palm Oil Methyl Esters POME Mahua oil Mustard oil Rice bran oil Sunflower, rapeseed and cottonseed oil Karanj Diesel Pre-heated jatropha oil LPG,CNG,LNG and CCNG Watse vegitable oil Neem oil Petrol Neat jatropha and Kharanja oils Jatropha oil Jatropha Raw rapeseed oil (RRO) (PME), (JME) (NME) Pungamia methyl ester Neat jatropha oil Karanj, Jatropha and Neem Coconut Oil Soybean oil Pongamia methyl ester Remarks Viscosity very close to that of diesel by preheating to 100–130°C. Viscosity very close to that of diesel at 80°C of neat Neem, Mahua and linseed oil, and that at @120°C for Castor. Raised to 158°C to bring its viscosity closer to diesel Preheating at 30°C - 100 °C leads to lean mixture that ignite without difficulty. Air heating using engine exhaust gas The B40 blend is preheated at 60,75,90 and 110°C At the temperature above 100 the viscosity reaches to ASTM limits. Preheating upto 130°C to attain the same density as that of diesel Rice bran oil requires a heating temperature of 158°C to bring its viscosity closer to diesel The alternative fuel passing through heat exchanger and extended its temperature in the range of 65-75 °C by engine coolant of 85-92 °C. At temperature range of 55-60°C the viscosity of blends becomes equal to that of pure diesel Amount of heat recovered The optimal fuel inlet temperature was found to be 80oC considering the BTE, BSEC and gaseous emissions. Fuel consumption reduced by 5-40% Blends preheated to 100 °C become very close to that of diesel. Inlet air temperature was raised up to 600°C Increased fuel saving , reduced exhaust gas toxicity and enable the use of cheaper low octane fuel. At full load engine jacket water temperature is @ 100 °C. Viscosity of the plant oil reduced by 80-90 % through by preheating to 90 °C. Optimal fuel inlet temperature was found to be 80°C Preheating to 100°C lowered viscosity and provided smooth fuel flow B5- B20 blends can be used without any heating, The high density of methyl esters (B25, B30, B60 etc.) Can be reduced by heating. Biodiesel of B5- B20 blends can be used without any heating The preheating of the neat Jatropha oil is done from 30°C to 100°C Preheating the fuel to overcome higher viscosity and lower volatility associated with bio-diesel. B100 requires preheating at 65° C to attain flash point as that of diesel fuel. Pre-heated (65 °C) 50% (v v-1) of soybean oil in petro diesel All emissions are reduced significantly with preheating of PBD. Improvement in the diffused combustion is responsible The boiling point of fossil fuels reduced by 50% by preheating. technical, economic, and environmental aspect. From the review, it has been identified that there are large potentials of energy savings through the use of waste heat recovery technologies. • Recovering engine waste heat can be achieved via numerous methods. The heat can either be reused ‘within the same process or transferred to another thermal, electrical, or mechanical process. The recovery and utilization of waste heat not only conserves fuel (fossil fuel) but also reduces the amount of waste heat and greenhouse gases damped to environment. The study shows the availability and possibility of waste heat from internal combustion engine. Though there are different technologies possible, the five have addressed and have their own benefits by utilizing these new engine waste heat recovery technologies from the perspective of Int J Adv Engg Tech/Vol. V/Issue IV/Oct.-Dec.,2014/31-39PDF Image | REVIEW ON WASTE HEAT RECOVERY FROM DIESEL ENGINES
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