code a solar still in a function block in matlab

main.m
function [distilledWater, saltRemaining] = solarStill(saltWater, solarFlux, airVelocity, stillArea, stillEfficiency)
% Inputs:
% saltWater: the mass of salt water in kg
% solarFlux: the solar radiation in W/m^2
% airVelocity: the wind speed in m/s
% stillArea: the surface area of the still in m^2
% stillEfficiency: the efficiency of the still as a decimal value
%
% Outputs:
% distilledWater: the mass of distilled water in kg
% saltRemaining: the mass of salt remaining in the still in kg

% Constants
SALT_WATER_DENSITY = 1025; % kg/m^3
WATER_DENSITY = 1000; % kg/m^3
SALT_WATER_SPECIFIC_HEAT = 3850; % J/(kg K)
LATENT_HEAT_OF_VAPORIZATION = 2260 * 1000; % J/kg
SEA_SALT_CONCENTRATION = 35; % g/kg

% Calculate the amount of heat absorbed by the still
heatAbsorbed = solarFlux * stillArea * stillEfficiency;

% Calculate the mass of distilled water
distilledWater = heatAbsorbed / LATENT_HEAT_OF_VAPORIZATION;

% Calculate the mass of salt remaining
initialSalt = saltWater * SEA_SALT_CONCENTRATION / 1000;
saltRemaining = (saltWater - distilledWater) * SEA_SALT_CONCENTRATION / 1000;

% Calculate the temperature change of the salt water and the air
deltaTSaltWater = heatAbsorbed / (saltWater * SALT_WATER_SPECIFIC_HEAT);
deltaTAir = heatAbsorbed / (airVelocity * WATER_DENSITY * stillArea);

end
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