1. Biomass Dispenser Group 5
Caleb Macdonald
Kyle Newman
Michael Pettet
Ryley Leblanc

2. Summary of Project Extract biogas from cow manure
Convert biogas to electrical power
Use remaining products as fertilizer
Retrieved from dairycrest.co.uk

3. Review of goals set in last report
Continue communication with professionals to gain information on the design we should use
Conduct detailed calculations on the amount of methane to be produced
Determine any significant financial, social, environmental issues
Finalize design idea and begin creating the final report

4. What has been accomplished since the last progress report
Different Design layouts, System blueprints
Research into the strengths and weaknesses of using Dry-Batch Digestion instead of the current model that is typically used.
Biogas that will be able to be produced, and information about the production.
How the system will be set up to harvest gas
Power that will be produced
Some of the suitable components that will be used in the system
Tanks, Generators, Gas storage

5. Key Points about Biogas and Manure
Biogas produced us 55-65% methane and 30-35% carbon dioxide
100 cows will produces 30 gallons of manure a day and 2950 kg or 6500 cubic feet of biogas every day
One cow produces roughly $294 of fertilizer each year
The process of turning manure to fertilizer takes about 6 months with turning every days

6. Expected Energy Produced (100 cows)
100 cows = 3000Gal (manure per day) 3000Gal (manure) = 6500lb (manure) 6500lb (manure) = 6500ft^3 Biogas Biogas Heating value = 600Btu/ft^3

7. First System Diagram

8. Second System Diagram

9. Strengths and Weaknesses of Our System vs. Current Systems
Simple Design
Controlled feeding
Higher Biomass Retention for use as fertilizer.
No mixing, stirring or pumping, low process and mechanical needs, and is cost-effective
Weaknesses
Lower biogas yield
Channeling and Clogging while loading or unloading manure
Larger retention volume needed

10. Tank Storage
Anaerobic digestion requires a oxygen-free environment to break down and produce methane
Tanks will be made of polyethylene and will not rust or corrode
Tanks will be on a slight incline to aid in removal of manure from tank
After loading tank with manure a vacuum seal will be placed over the opening and using a reversible air pump air will be pumped out and will be repurposed to create an airtight seal on the rear hatch
Methane will flow through pipes when it is produced to a methane storage container where it will stay until it is used in the generator
Tank will stay airtight for the full digestion time
After the full cycle manure will be removed from the rear hatch and will be converted into fertilizer for the farmers crops

11. How generator connects the power
Biogas goes into the generator
- the generator is a specifically designed combustion engine
Generator connects to a disconnect switch
Disconnect switch to main panel
Main panel acts as a central hub for the power
Generator runs in regular intervals for maximum efficiency
The farm relies on the electrical grid when the generator is not running
- This method is more efficient than storing the additional energy

12. Outline of goals until next scheduled report
Finish Project

13. Project Gantt Chart

14. References