Author(s):
Camila Valderrama, Elmin Rahic, Hunter Porcano, Juliana Vasco-Correa
Abstract:
This repository contains datasets generated from techno-economic and uncertainty analyses of anaerobic digestion (AD) systems using dairy manure with lignocellulosic biomass co-digestion (corn stover, switchgrass, and winter rye). The dataset includes baseline scenario outputs, Monte Carlo uncertainty results, and supporting reports for two biogas utilization pathways: Combined Heat and Power (CHP) for electricity production and Renewable Natural Gas (RNG) via biogas upgrading.
Scenarios cover two biomass supply strategies: on-farm production and externally purchased feedstocks. The underlying model includes detailed process simulation, cost estimation, and uncertainty analysis. This repository provides only the resulting datasets and summary outputs used in the associated publication. It is intended as a data companion to the BioSTEAM-based modeling framework, enabling reproducibility of results for farm-scale AD configurations under multiple feedstock and supply conditions.
Funder:
USDA NIFA
Award Number:
2020-68012-31824
Keywords:
BioSTEAM, anaerobic digestion, biogas, biogas upgrading, combined heat and power (CHP), co-digestion, dairy manure, lignocellulosic biomass, renewable natural gas, techno-economic analysis
Project (Abbreviated name):
G2G_Vasco_Correa_dairy_farm_RNG_TEA
Team:
Grass2Gas
Geographic Location:
The model simulates a traditional dairy farm in the United States. Assumptions for Pennsylvania electricity costs and income tax rates were used as inputs but can be readily adjusted.
Related Publications
Families:
Bovidae, Poaceae
Species:
Bos taurus, Panicum virgatum, Secale cereale, Zea mays
Data Mirror:
Data Table Column Names and Descriptions
| Table name | Column name | Data type | Units | Column description |
|---|---|---|---|---|
| uncertainty 10K CHP CORN CN | Area grass ha | float | hectare | Area of grass cultivation required to meet feedstock demand (hectares). |
| uncertainty 10K CHP CORN CN | Biomass yield grass | float | tonnePerHectare | Annual grass biomass yield (dry matter tonne per hectare per year). |
| uncertainty 10K CHP CORN CN | CH4 yield grass | float | mililiterPerGram | Methane yield from grass biomass (mL CH4 per g volatile solids). |
| uncertainty 10K CHP CORN CN | CH4 yield manure | float | mililiterPerGram | Methane yield from manure (mL CH4 per g volatile solids). |
| uncertainty 10K CHP CORN CN | CHP efficiency | float | proportion | Overall energy efficiency of the CHP unit (fraction). |
| uncertainty 10K CHP CORN CN | CHP elec efficiency | float | proportion | Electrical efficiency of the CHP unit (fraction). |
| uncertainty 10K CHP CORN CN | CN | float | gramPerGram | Carbon:nitrogen ratio of the combined feedstock mixture. |
| uncertainty 10K CHP CORN CN | CN ratio | float | gramPerGram | Calculated overall C:N ratio entering the digester. |
| uncertainty 10K CHP CORN CN | Cap factor | float | proportion | Capacity factor (unitless) representing the capacity factor of the plant with employees on site |
| uncertainty 10K CHP CORN CN | Carbon grass | float | proportion | Carbon content of grass biomass (fraction of wet mass). |
| uncertainty 10K CHP CORN CN | Grass annual flowrate kg yr | float | kilogramPerYear | Annual grass feedstock input (kg per year). |
| uncertainty 10K CHP CORN CN | Grass flow kg hr | float | kilogramPerHour | Grass feedstock flow rate to the digester (kg per hour). |
| uncertainty 10K CHP CORN CN | HRT | float | day | Hydraulic retention time of the anaerobic digester (days). |
| uncertainty 10K CHP CORN CN | IRR | float | proportion | Internal rate of return of the project (fraction). |
| uncertainty 10K CHP CORN CN | Lactating cows | float | proportion | Fraction of herd consisting of lactating cows. |
| uncertainty 10K CHP CORN CN | MESP | float | USDollarPerKilowattHour | Minimum energy selling price required for economic viability, NPV=0. |
| uncertainty 10K CHP CORN CN | Manure Carbon dry | float | proportion | Carbon content of dry cow manure (fraction of wet mass). |
| uncertainty 10K CHP CORN CN | Manure Carbon lactating | float | proportion | Carbon content of lactating cow manure (fraction of wet mass). |
| uncertainty 10K CHP CORN CN | Manure Nitrogen dry | float | proportion | Nitrogen content of dry cow manure (fraction of wet mass). |
| uncertainty 10K CHP CORN CN | Manure Nitrogen lactating | float | proportion | Nitrogen content of lactating cow manure (fraction of wet mass). |
| uncertainty 10K CHP CORN CN | Manure VS dry | float | proportion | Volatile solids fraction of manure from dry cows (fraction of wet mass). |
| uncertainty 10K CHP CORN CN | Manure VS lactating | float | proportion | Volatile solids fraction of manure from lactating cows (fraction of wet mass). |
| uncertainty 10K CHP CORN CN | Manure moisture dry | float | proportion | Moisture content of manure from dry cows (fraction). |
| uncertainty 10K CHP CORN CN | Manure moisture lactating | float | proportion | Moisture content of manure from lactating cows (fraction). |
| uncertainty 10K CHP CORN CN | Minimum Grant percentage | float | proportion | Minimum fraction of capital cost that must be covered by a grant for the project to break even, NPV=0 (fraction). |
| uncertainty 10K CHP CORN CN | Moisture grass | float | proportion | Moisture content of grass biomass (fraction). |
| uncertainty 10K CHP CORN CN | NPV | float | USMillionDollars | Net Present Value (US million dollars) |
| uncertainty 10K CHP CORN CN | Natural gas price | float | USDollarPerThousandFeetCubed | Market price of natural gas ($ per MCF). |
| uncertainty 10K CHP CORN CN | Nitrogen grass | float | proportion | Nitrogen content of grass biomass (fraction of wet mass). |
| uncertainty 10K CHP CORN CN | TCI | float | USMillionDollars | Total capital investment (US million dollars) |
| uncertainty 10K CHP CORN CN | Total solids digester | float | proportion | Maximum total solids concentration in the digester (fraction of wet mass). |
| uncertainty 10K CHP CORN CN | VS grass | float | proportion | Volatile solids fraction of grass biomass (fraction of TS). |
| uncertainty 10K CHP CORN CN | biogas kg hr | float | kilogramPerHour | Biogas production rate (kg per hour). |
| uncertainty 10K CHP CORN CN | electricity price | float | USDollarPerKilowattHour | Market price of electricity ($ per kWh). |
| uncertainty 10K CHP CORN CN | external temperature | float | celsius | External ambient temperature (°C) used to determine heat losses and thermal performance of the digester system. |
| uncertainty 10K CHP CORN CN | grass inlet temperature | float | celsius | Temperature of grass feedstock entering the system (°C). |
| uncertainty 10K CHP CORN CN | grass price | float | USDollarPerKilogram | Farm-gate price of grass biomass ($ per kg). |
| uncertainty 10K CHP CORN CN | manure inlet temperature | float | celsius | Temperature of manure entering the system (°C). |
| uncertainty 10K CHP CORN CN | solid digestate price | float | USDollarPerKilogram | Sale price of solid digestate ($ per kg). |
| uncertainty 10K CHP CORN CN | uncertainty 10K CHP CORN CN pkey | integer | number | A unique primary key for this table. |
| uncertainty 10K CHP CORN CN | water inlet temperature | float | celsius | Temperature of dilution water entering the system. |
| uncertainty 10k CHP CORN LAND | Area grass ha | float | hectare | Area of grass cultivation required to meet feedstock demand (hectares). |
| uncertainty 10k CHP CORN LAND | Biomass yield grass | float | tonnePerHectare | Annual grass biomass yield (dry matter tonne per hectare per year). |
| uncertainty 10k CHP CORN LAND | CH4 yield grass | float | mililiterPerGram | Methane yield from grass biomass (mL CH4 per g volatile solids). |
| uncertainty 10k CHP CORN LAND | CH4 yield manure | float | mililiterPerGram | Methane yield from manure (mL CH4 per g volatile solids). |
| uncertainty 10k CHP CORN LAND | CHP efficiency | float | proportion | Overall energy efficiency of the CHP unit (fraction). |
| uncertainty 10k CHP CORN LAND | CHP elec efficiency | float | proportion | Electrical efficiency of the CHP unit (fraction). |
| uncertainty 10k CHP CORN LAND | CN | float | gramPerGram | Carbon‑to‑nitrogen ratio of the combined feedstock mixture. |
| uncertainty 10k CHP CORN LAND | CN ratio | float | gramPerGram | Calculated overall C:N ratio entering the digester. |
| uncertainty 10k CHP CORN LAND | Cap factor | float | proportion | Capacity factor (unitless) representing the capacity factor of the plant with employees on site |
| uncertainty 10k CHP CORN LAND | Carbon grass | float | proportion | Carbon content of grass biomass (fraction of wet mass). |
| uncertainty 10k CHP CORN LAND | Grass annual flowrate kg yr | float | kilogramPerYear | Annual grass feedstock input (kg per year). |
| uncertainty 10k CHP CORN LAND | Grass flow kg hr | float | kilogramPerHour | Grass feedstock flow rate to the digester (kg per hour). |
| uncertainty 10k CHP CORN LAND | HRT | float | day | Hydraulic retention time of the anaerobic digester (days). |
| uncertainty 10k CHP CORN LAND | IRR | float | proportion | Internal rate of return of the project (fraction). |
| uncertainty 10k CHP CORN LAND | Lactating cows | float | proportion | Fraction of herd consisting of lactating cows. |
| uncertainty 10k CHP CORN LAND | MESP | float | USDollarPerKilowattHour | Minimum energy selling price required for economic viability, NPV=0. |
| uncertainty 10k CHP CORN LAND | Manure Carbon dry | float | proportion | Carbon content of dry cow manure (fraction of wet mass). |
| uncertainty 10k CHP CORN LAND | Manure Carbon lactating | float | proportion | Carbon content of lactating cow manure (fraction of wet mass). |
| uncertainty 10k CHP CORN LAND | Manure Nitrogen dry | float | proportion | Nitrogen content of dry cow manure (fraction of wet mass). |
| uncertainty 10k CHP CORN LAND | Manure Nitrogen lactating | float | proportion | Nitrogen content of lactating cow manure (fraction of wet mass). |
| uncertainty 10k CHP CORN LAND | Manure VS dry | float | proportion | Volatile solids fraction of manure from dry cows (fraction of wet mass). |
| uncertainty 10k CHP CORN LAND | Manure VS lactating | float | proportion | Volatile solids fraction of manure from lactating cows (fraction of wet mass). |
| uncertainty 10k CHP CORN LAND | Manure moisture dry | float | proportion | Moisture content of manure from dry cows (fraction). |
| uncertainty 10k CHP CORN LAND | Manure moisture lactating | float | proportion | Moisture content of manure from lactating cows (fraction). |
| uncertainty 10k CHP CORN LAND | Minimum Grant percentage | float | proportion | Minimum fraction of capital cost that must be covered by a grant for the project to break even, NPV=0 (fraction). |
| uncertainty 10k CHP CORN LAND | Moisture grass | float | proportion | Moisture content of grass biomass (fraction). |
| uncertainty 10k CHP CORN LAND | NPV | float | USMillionDollars | Net Present Value (US million dollars) |
| uncertainty 10k CHP CORN LAND | Natural gas price | float | USDollarPerThousandFeetCubed | Market price of natural gas ($ per MCF). |
| uncertainty 10k CHP CORN LAND | Nitrogen grass | float | proportion | Nitrogen content of grass biomass (fraction of wet mass). |
| uncertainty 10k CHP CORN LAND | TCI | float | USMillionDollars | Total capital investment (US million dollars) |
| uncertainty 10k CHP CORN LAND | Total solids digester | float | proportion | Maximum total solids concentration in the digester (fraction of wet mass). |
| uncertainty 10k CHP CORN LAND | VS grass | float | proportion | Volatile solids fraction of grass biomass (fraction of TS). |
| uncertainty 10k CHP CORN LAND | biogas kg hr | float | kilogramPerHour | Biogas production rate (kg per hour). |
| uncertainty 10k CHP CORN LAND | electricity price | float | USDollarPerKilowattHour | Market price of electricity ($ per kWh). |
| uncertainty 10k CHP CORN LAND | external temperature | float | celsius | External ambient temperature (°C) used to determine heat losses and thermal performance of the digester system. |
| uncertainty 10k CHP CORN LAND | grass inlet temperature | float | celsius | Temperature of grass feedstock entering the system (°C). |
| uncertainty 10k CHP CORN LAND | grass price | float | USDollarPerKilogram | Farm‑gate price of grass biomass ($ per kg). |
| uncertainty 10k CHP CORN LAND | manure inlet temperature | float | celsius | Temperature of manure entering the system (°C). |
| uncertainty 10k CHP CORN LAND | solid digestate price | float | USDollarPerKilogram | Sale price of solid digestate ($ per kg). |
| uncertainty 10k CHP CORN LAND | uncertainty 10k CHP CORN LAND pkey | integer | number | A unique primary key for this table. |
| uncertainty 10k CHP CORN LAND | water inlet temperature | float | celsius | Temperature of dilution water entering the system. |