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Update main.py #1

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17 changes: 9 additions & 8 deletions main.py
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@ def submit_times():
time_input_window.title("Enter Time for 10cc Fuel Consumption")
tk.Label(time_input_window, text="Enter time for each load step (seconds):").pack()
time_entries = []
for i in range(6):
for i in range(6): # Assuming 6 steps (including no load)
frame = tk.Frame(time_input_window)
frame.pack()
tk.Label(frame, text=f"Load Step {i + 1}:").pack(side=tk.LEFT)
Expand Down Expand Up @@ -72,8 +72,8 @@ def calculate_performance(w_max, step_load, time_values):
# Calculate maximum load (w_max in kg)
w_max = (4500 * rated_bp) / (2 * math.pi * rated_rpm * R)
else:

w_max = 0
# If using an electric generator, max load calculation might differ or be predefined
w_max = 0 # Adjust this logic as needed

# Ensure that inputs are positive and make sense
if bore <= 0 or stroke <= 0 or num_cylinders <= 0 or rated_bp <= 0 or rated_rpm <= 0 or fuel_density <= 0 or calorific_value <= 0:
Expand All @@ -100,13 +100,13 @@ def calculate_performance(w_max, step_load, time_values):
bte_list = []
ite_list = []

for i in range(6):
for i in range(0,6):
load_kg = i * step_load
load_lbs = load_kg * 2.20462
time_10cc = time_values[i] # Using values from time_values
tfc = (10 * fuel_density * 3600) / (time_10cc * 1000) # TFC in kg/h
bp = rated_bp * (i / 5) # Linear scaling for example
sfc = tfc / bp if bp != 0 else 0
bp = (2*math.pi*rated_rpm*R*load_kg*9.81)/(60000) # Linear scaling for example
sfc = tfc / bp if bp != 0 else float("inf")
bmep = (bp * 60) / (stroke * area_of_cylinder * num_working_strokes_per_minute * num_cylinders)
ip = bp + 1 # Simplified estimation of IP
imep = (ip * 60) / (stroke * area_of_cylinder * num_working_strokes_per_minute * num_cylinders)
Expand Down Expand Up @@ -232,8 +232,9 @@ def plot_graphs(bp_list, sfc_list, tfc_list, bmep_list, imep_list, me_list, bte_
table = ttk.Treeview(table_frame, columns=("Step", "Load (lbs)", "Load (kg)", "Time for 10cc (s)", "TFC (kg/h)", "SFC (g/kWh)", "BMEP (MPa)", "BP (kW)", "IMEP (MPa)", "BTE (%)", "ITE (%)", "IMEP"))
for col in table["columns"]:
table.heading(col, text=col)
table.pack()

table.column(col, width=70)

table.pack(fill="both", expand=True)
# Max load label
lbl_max_load = tk.Label(root, text="Max Load (kg): 0")
lbl_max_load.grid(row=9, column=0)
Expand Down