Green technology effect of injection pressure, timing and compression ratio in constant pressure heat addition cycle by an eco-friendly material

• This is an original research work containing experimental results and findings.
• Taguchi and Gray relations were used for optimising engine operating parameters.
• Higher portion of neat vegetable oil was used in DICI engine with modified parameters.
• Extensive combustion performance analysis was conducted using neat vegetable oil.
• The combustion effects of modified parameters of Diesel cycle were studied.

Present energy strategies focus on environmental issues, especially environmental pollution prevention and control by eco-friendly green technologies. This includes, increase in the energy supplies, encouraging cleaner and more efficient energy management, addressing air pollution, greenhouse effect, global warming, and climate change. Biofuels provide the panorama of new fiscal opportunities for people in rural area for meeting their need and also the demand of the local market. Biofuels concern protection of the environment and job creation. Renewable energy sources are self-reliance resources, have the potential in energy management with less emissions of air pollutants. Biofuels are expected to reduce dependability on imported crude oil with connected economic susceptibility, reduce greenhouse gases, other pollutants and invigorate the economy by increasing demand and prices for agricultural products. The use of neat paradise tree oil and induction of eco-friendly material Hydrogen through inlet manifold in a constant pressure heat addition cycle engine (diesel engine) with optimized engine operating parameters such as injection timing, injection pressure and compression ratio. The results shows the heat utilization efficiency for neat vegetable oil is 29% and neat oil with 15% Hydrogen as 33%. The exhaust gas temperature (EGT) for 15% of H2 share as 450 °C at full load and the heat release of 80 J/deg. crank angle for 15% Hydrogen energy share.