J&B1st_pesentation[1].use of coconut shells.pptx

Coconut shells can be effectively used as a fuel source to control temperature in various applications:
Coconut shells have a high calorific value and can reach combustion temperatures of up to 800°C in fixed-bed incinerators. The temperature of the flue gas from direct coconut shell combustion can reach 520°C.
The operating temperature of incinerators or boilers using coconut shells as fuel can be controlled by varying the air-fuel ratio or equivalence ratio (ER). Increasing the air flow rate leads to more complete combustion and higher temperatures.
In one study, the highest temperature of about 800°C was achieved in the primary combustion chamber of a fixed-bed incinerator using coconut shells with an average size of 10x10mm at an ER of 5.56. The product gas output temperature was around 390°C.
Proper distribution of combustion air is critical to guarantee complete combustion and control temperature in the chamber. Using secondary air injection is beneficial for fuels with high volatile content like coconut shells.
The heating rate and final pyrolysis temperature also impact the characteristics of the resulting coconut shell char. Higher heating rates (up to 500°C/min) and temperatures (up to 800°C) can be used to tailor the properties of the char produced from coconut shells.
In summary, coconut shells are a readily available biomass fuel that can reach high combustion temperatures. The temperature can be precisely controlled by adjusting the air supply and combustion parameters to meet the needs of various thermal applications.

1. SCHOOL OF ENGINEERING INCORPORATION OF ACTIVATED CHARCOAL INTO THE PLASTERING PASTE TO REGULATE CARBON V OXIDIE AND TEMPERATURE IN BUILDINGS Kones Jedidah Chelangat E033-01-1389/2020 Mukhwana Wafula Brian E033-01-1401/2020 1

2. Introduction/Background Activated charcoal is a highly porous material with a large surface area that can effectively adsorb gases and impurities. By incorporating activated charcoal into plastering paste, it is possible to create a building material that can adsorb carbon dioxide from the atmosphere, thus reducing indoor air pollution levels. By conducting experiments and simulations, we are seeking to determine the effectiveness of this innovative building material in reducing carbon dioxide emissions and improving indoor comfort levels. 2

3. Problem Statement and Research Gap Carbon (iv) oxide emission into the environment increases green house effect causing temperatures to rise. The global temperatures have risen causing discomfort in the buildings as the atmosphere is affected by global warming. The best ratio of activated charcoal to be incorporated into the plastering paste has not yet been established. 3

4. Justification There is an embrace on the use of activated charcoal in the world by various industries to combat the extent of carbon (iv) oxide emission into the environment. Activated carbon is preferable because it has small, low-volume pores that increase the surface area for the adsorption of Carbon IV Oxide gas. The best ratio of activated charcoal to be incorporated into the plastering paste has not been established. 4

5. Research Objectives General Objective To investigate the impact of activated charcoal in regulating Carbon IV Oxide and temperatures in buildings. Specific Objective To investigate the impact of activated charcoal incorporated into the plastering paste on the adsorption of Carbon IV Oxide in buildings. To determine the extent of temperature regulation in the house whose walls are incorporated with activated charcoal. To determine the effect of various percentages of activated charcoal on the strength of plaster on walls. 5

6. Literature Review 6 Title of Article Year of Publication Relevance to Study THE IMPACT OF GREEN BUILDINGS IN CLIMATE CHANGE MITIGATION: AN INVESTIGATIVE STUDY ON SELECTED OFFICE BUILDINGS IN WESTLANDS, NAIROBI COUNTY. 2012 Mitigation of greenhouse gas effects. PERFORMANCE EVALUATION OF COMBINED SOLAR CHIMNEY AND RADIATIVE COOLING VENTILATION. 2022 Temperature regulation by introducing cooling effect. PLASTER BASED MATERIAL (FR3109777A1) 2021 Determining the ratios of activated charcoal to incorporate in plastering paste

7. Methodology 7

8. Expected Results The level of Carbon IV Oxide in the building after incorporation of activated charcoal into the plastering paste is expected to reduce. The difference in temperatures between the building with activated charcoal incorporation and the one without is expected to be noticeable. The best ratio of the activated charcoal to be incorporated into the plastering paste mixture without deteriorating it is to be determined. 8