The objective of this research paper is to investigate the combustion and emission characteristics by developing a clean combustion phenomenon, with an improvement in efficiency in an internal combustion engine. Most of the commercial transportation is through the CI (Compressed Ignition) engine and these engines creates relatively high emission in the form of Oxides of Nitrogen (NOx) and Particulate Matter (PM). With an increase in fuel prices and emission norms globally, thus demands a clean combustion from IC engine. In order to overcome the above stated problems associated, a step ahead is taken by the use of Reactivity Controlled Combustion Ignition concept (RCCI). As per the experiment conducted RCCI is capable of achieving high thermal efficiency and low NOx and PM emissions. In this experiment a light-duty single-cylinder diesel engine is modified to run an RCCI mode using diesel and petrol as a fuel. The reduction and increase in efficiency and emissions has been obtained by carrying out a slight modification in the intake named as Port Fuel Injector (PFI) for using the Low Reactive Fuel (LRF). The engine speed is kept constant by varying the Start of Injection (SOI). The PFI injector is being run by using an Arduino setup, where the LRF injection will be monitored and controlled by the Arduino. Load is applied using an eddy current dynamometer. The experiment is run with two combinations fuels such diesel and diesel-petrol.
An attempt was made to develop auto-flush machine for cleaning of toilet area/elimination area. To study the auto-flush system, a total of 10 weaners were divided into two groups (having 5 each), viz. G1 (weaners kept in a modified intensive pen with auto flush system) and G2 (weaners in intensive pen without auto-flush). The defecation pattern/trend was observed 24 h consecutively for 5 days. Each weaner defecated 8.40±0.23 and 8.92±0.13 times per day in G1 and G2 respectively. The auto-flush was assessed indirectly based on parameters like hygiene score of floor, hygiene score of animals, amount of water consumed and manpower required for cleaning of pen in 5 days. Hygiene score of floor was higher in G1 (143±0.63) compare to G2 (112.2±1.7). Hygiene score of animals was higher in G1 (5) compared to G2 (2.6). Water consumed for cleaning was lower in G1 (162.8±9.06 litres) than G2 (212±1.4 liters). Manpower requirement in G1 (7.85±0.24 sec) was lower than G2 (175.48±2.11 sec). It can be concluded that all weaners used the elimination area for defecation in G1. The auto-flush system helped in saving water, labour time and maintained the cleanliness of both floor and animal.
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