Aerator Comparer Module

Overview

The aerator_comparer module compares aerators for shrimp farming based on specs and financial metrics. It calculates OTR_T from SOTR, includes revenue from shrimp production, and focuses on savings and opportunity cost for financial indicators.

Key Components

Data Structures: Uses namedtuples for structured data handling (Aerator, FinancialInput, FarmInput, AeratorResult)
Financial Calculations: NPV, IRR, ROI, payback period calculations
Aerator Comparison: Compares aerators based on cost, efficiency, and performance

Example Usage

from api.aerator_comparer import compare_aerators

data = {
    'farm': {
        'tod': 5443.76,
        'farm_area_ha': 1000,
        'shrimp_price': 5.0,
        'culture_days': 120,
        'shrimp_density_kg_m3': 0.3333333,
        'pond_depth_m': 1.0
    },
    'financial': {
        'energy_cost': 0.05,
        'hours_per_night': 8,
        'discount_rate': 0.1,
        'inflation_rate': 0.025,
        'horizon': 9,
        'safety_margin': 0,
        'temperature': 31.5
    },
    'aerators': [
        {
            'name': 'Aerator 1',
            'sotr': 1.4,
            'power_hp': 3,
            'cost': 500,
            'durability': 4.5,
            'maintenance': 65
        },
        {
            'name': 'Aerator 2',
            'sotr': 2.2,
            'power_hp': 3,
            'cost': 800,
            'durability': 4.5,
            'maintenance': 50
        }
    ]
}

result = compare_aerators(data)