Summary_of_Logistics_Waste_Model_v3.2_for_TCPS.pdf

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Summary of AES Logistics project Exploration Waste Model v3.2 by Michael Ewert/JSC 12/21/2017 data with mods to columns E&F

This model of solid and liquid waste products for long duration exploration missions can be used as a companion to the logistics supply (up-mass) data given in:

Goodliff, K., et al., “Logistics Needs for Future Human Exploration Beyond Low Earth Orbit”, AIAA 2017-5122, AIAA Space Forum. See column H for assumptions.

Wastes associated with science utilization or broken equipment not included. Waste stream mass expected in a Trash Compaction and Processing System (TCPS) is listed in column F in red.

Closed loop life support and habitation systems similar to ISS are assumed. 85% urine water recovery, CO2 reduction via Sabatier, waste gases vented.

Waste/yr for 4 CM*

Avg. waste/ day/person

TCPS

input

TCPS input/ day/4CM Water

Content

Notes & assumptions Mass remaining at end of a 1-yr mission

Category Sub Category Mass (kg) Mass (kg) (Yes/No) Mass (kg) H2O (%) *CM=crew members for disposal (kg)

(not incl. col. I)

Crew Provisions:

Disposable Clothing 241.0 0.165 Y 0.660 9.0% Assume 20% of clothing still in use at end of mission. 60.2

Shoes 0.0 0.000 N Used entire mission. 6

Paper/ink cartridges and office supplies

Paper 8.5 0.006 Y 0.023 6.0% Assume 90% becomes waste 0.9

Ink Cartridges 0.4 0.000 Y 0.001 0.0% Assume 90% becomes waste 0.05

Crew Specific/ Miscellaneous/ Office

Supplies 1.0 0.001 Y 0.003 1.8% Assume 10% becomes waste 9.0

Wipes/Tissues

Dry Wipes (Tempo Wipes) 48.6 0.033 Y 0.133 6.0% Assume 90% becomes waste 5.4

Russian Dry Wipes (Gauze-y toilet paper) 48.3 0.033 N 6.0% Assume 90% becomes waste 5.4

Hand/Face Wipes (Includes Gloves)

Huggies Wet Wipes 116.9 0.080 Y 0.320 76.2% Assume 90% becomes waste 13.0

Nitrile Gloves 21.0 0.014 Y 0.058 0.0% Assume 90% becomes waste 2.3

Body Bath, Towels, and Hygiene

Towels 26.9 0.018 Y 0.074 9.0% Assume 90% becomes waste 3.0

Body Washcloths 11.6 0.008 Y 0.032 9.0% Assume 90% becomes waste 1.3

Body Bath Pouches 2.4 0.002 Y 0.007 0.0% Assume 90% becomes waste 0.3

Crew Personal Hygiene Supplies 32.0 0.022 Y 0.088 0.0% Assume 80% becomes waste 8.0

Hygiene towels 90.0 0.062 Y 0.247 9.0% Assume 90% becomes waste 10.0

Tape and Velcro

Kapton Tapes 2.4 0.002 Y 0.007 0.0% Assume 50% becomes waste 2.4

Gray Tapes 3.1 0.002 Y 0.008 0.0% Assume 50% becomes waste 3.1

Velcro 0.3 0.000 Y 0.001 0.0% Assume 10% becomes waste 2.7

Sleeping Bags 0.0 0.000 N 9.0% Used entire mission 14.44

Sleeping Bag Liners 12.0 0.008 Y 0.033 9.0% Assume 10/12 becomes waste 2.4

Housekeeping

Disinfectant Wipes 28.9 0.020 Y 0.079 76.2% Assume 90% becomes waste 3.2

Vacuum Cleaner bags 0.5 0.000 Y 0.001 6.0% Assume 90% becomes waste 0.1

Crew Preference Items

Crew Preference Bag items 4.0 0.003 Y 0.011 0.0% Assume 10% becomes waste 36.0

Crew Care Package items 32.0 0.022 Y 0.088 30.5% Assume 20% becomes waste 128.0

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Alkaline Batteries

AAA Alkalines 0.5 0.000 N 0.0% Assume 90% becomes waste 0.1

AA Alkalines 3.5 0.002 N 0.0% Assume 90% becomes waste 0.4

C Alkalines 0.4 0.000 N 0.0% Assume 90% becomes waste 0.04

D Alkalines 4.2 0.003 N 0.0% Assume 90% becomes waste 0.5

9V Alkalines 0.3 0.000 N 0.0% Assume 90% becomes waste 0.04

Packaging Cargo Transfer Bags 0.0 0.000 N 0.0% Reused in Logistics 2 Living. Depends on reuse

Polyethylene zip top bags 11.4 0.008 Y 0.031 0.0% Assume 90% waste; incl. mass in model for plastic content 1.3

Total Crew Provisions Estimate 752.1 0.515

Food System

Food as shipped 143.2 0.098 Y 0.392 84.3% Converted to crew waste, except for 7% residue in packages & 10% stays on shelf.227.3

Food Packaging 360.0 0.247 Y 0.986 0.0% Assume 90% becomes waste 40.0

Food Storage 33.7 0.023 Y 0.092 0.0% Assume 90% of BOBs become waste; CTB's reused for L2L. 3.7

Total Food System Estimate 536.9 0.368

EVA Supplies (for twelve 8 hour EVAs)

MAGs (aka diapers) (incl. launch/entry) 8.1 0.006 half, clean 0.011 33.5% Assume 90% becomes waste; may contain urine, not feces. 0.9

LCVG's (liquid cooling garment) 6.4 0.004 N 0.9% Assume 2 are disposed of during mission.

Total EVA Supplies 14.5 0.010

Total Health Care Consumables 65.7 0.045 N 0.0% Assume 50% becomes waste 65.7

Foam Packaging for Launch of Equipment 42.9 0.029 Y 0.118 0.0% Assume 100% becomes waste in 1st 2 weeks of mission. 0

Life Support System Maintenance:

Air Revitilization System

Air Filters 0.0 0.000 N Assume 75% becomes waste 0.0

O2 Generation - H2 Sensor 10.1 0.007 N Assume 75% becomes waste 3.4

Water Recovery System

VCD - TUBBS 44.0 0.030 N Assume 90% becomes waste 4.9

MF - Beds 54.7 0.037 N 0.0% Assume 50% becomes waste 54.7

PP IX - replacement cartridges 0.0 0.000 N Assume 85% becomes waste 0.0

Urine filters, funnels and hoses 48.6 0.033 N Assume 90% becomes waste 5.4

Gas separator in VRA 28.7 0.020 N Assume 100% becomes waste 0.0

Waste Management System

ISS wet trash bags 18.5 0.013 N 0.0% Assume 90% becomes waste 2.1

Jettison stowage bags 6.9 0.005 N Assume 90% becomes waste 0.8

Dry trash container liners 6.0 0.004 Y 0.016 0.0% Assume 90% becomes waste 0.7

Dry & Wet Trash containers 4.9 0.003 N 0.0% Assume 50% becomes waste due to wearing out 4.9

Fecal collection bags + lids 103.9 0.071 N 0.0% Assume 90% becomes waste 11.5

Fecal collection canisters + OBF lids 187.9 0.129 N Assume 90% becomes waste 20.9

Carbon air filter after separator 0.0 0.000 N Assume 90% becomes waste 0.0

Total Life Support System Maintenance 514.1 0.352

Human Waste Products

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Feces 179.6 0.123 N 73.2%

From BVAD nominal value of 0.123 kg/CM-d. Note: NASA STD-

3001 specifies 0.3 kg/CM-day

Urine brine 450.3 0.308 N 90.0%

15% of (urine + flush water) becomes brine and BVAD gives

1.562 kg/CM-day of urine & 0.494 flush.

Sweat solids (in towels and clothes) 26.3 0.018 Y 0.072 0.0% From BVAD nominal value of 18 g/CM-day

Total Human Waste Products 656.1 0.449

TCPS total avg.

per day (kg)

TOTAL CREW RELATED SOLID/LIQUID WASTE DISPOSAL RATES 2582.4 1.77 3.59

4 person crew