Update app.py

app.py

@@ -4,21 +4,21 @@ from PIL import Image
 # Set Page Config
 st.set_page_config(
     page_title="HVAC System Calculator",
-    page_icon="❄️",
+    page_icon="⚙️",  # Changed to an engineering-related icon
     layout="wide",
     initial_sidebar_state="expanded",
 )
 
 # Title and Description
-st.title("❄️ HVAC System Calculator")
+st.title("⚙️ MEP HVAC System Calculator")
 st.markdown("""
-An interactive tool for HVAC calculations:
+An interactive tool for MEP engineers to perform HVAC calculations:
 - **CFM to Ton Conversion**
 - **Heat Load Calculation**
 - **System Selection**
 - **AC Unit Requirements**
 
-Use the sidebar to select tasks and input parameters.
+Use the sidebar to select tasks and input space parameters. Detailed recommendations are provided after the calculations.
 """)
 
 # Sidebar for User Input
@@ -34,8 +34,8 @@ task = st.sidebar.selectbox("Choose a Task", [
 def cfm_to_ton(cfm):
     return cfm / 400
 
-def calculate_heat_load(area, occupants, appliances):
-    return (area * 20) + (occupants * 500) + appliances
+def calculate_heat_load(volume, occupants, appliances):
+    return (volume * 5) + (occupants * 500) + appliances
 
 def recommend_system(heat_load):
     if heat_load <= 24000:
@@ -58,28 +58,33 @@ if task == "CFM to Ton Conversion":
         if cfm:
             tons = cfm_to_ton(cfm)
             st.success(f"Equivalent Tons: {tons:.2f}")
+            st.markdown("### Description and Recommendation")
+            st.write("CFM (Cubic Feet per Minute) is the volume of air moved per minute. Converting it into tons helps select the appropriate HVAC system.")
 
 elif task == "Heat Load Calculation":
     st.header("Heat Load Calculation")
-    col1, col2 = st.columns(2)
+    st.markdown("Enter the dimensions of the space:")
+    col1, col2, col3 = st.columns(3)
     with col1:
-        area = st.number_input("Enter Area", min_value=0.0, step=1.0)
-        area_unit = st.selectbox("Area Unit", ["sq ft", "sq m", "sq cm", "sq mm"])
+        length = st.number_input("Length (in feet)", min_value=0.0, step=1.0)
     with col2:
+        width = st.number_input("Width (in feet)", min_value=0.0, step=1.0)
+    with col3:
+        height = st.number_input("Height (in feet)", min_value=0.0, step=1.0)
+
+    col4, col5 = st.columns(2)
+    with col4:
         occupants = st.number_input("Number of Occupants", min_value=0, step=1)
+    with col5:
         appliances = st.number_input("Appliances Heat Load (in BTU)", min_value=0.0, step=100.0)
 
     if st.button("Calculate Heat Load"):
-        # Convert area to square feet if needed
-        if area_unit == "sq m":
-            area *= 10.764
-        elif area_unit == "sq cm":
-            area /= 929.03
-        elif area_unit == "sq mm":
-            area /= 92903.04
-
-        heat_load = calculate_heat_load(area, occupants, appliances)
-        st.success(f"Heat Load: {heat_load:.2f} BTU")
+        volume = length * width * height
+        if volume:
+            heat_load = calculate_heat_load(volume, occupants, appliances)
+            st.success(f"Heat Load: {heat_load:.2f} BTU")
+            st.markdown("### Description and Recommendation")
+            st.write("Heat load is essential for determining the cooling requirements. Ensure to account for appliance and occupant heat contributions.")
 
 elif task == "System Selection":
     st.header("System Selection")
@@ -89,6 +94,8 @@ elif task == "System Selection":
             system, details = recommend_system(heat_load)
             st.success(f"Recommended System: {system}")
             st.info(f"Details: {details}")
+            st.markdown("### Description and Recommendation")
+            st.write(f"{system} systems are typically used for spaces requiring {details} cooling capacity. Consult with a professional for final selection.")
 
 elif task == "AC Unit Requirements":
     st.header("AC Unit Requirements")
@@ -102,7 +109,9 @@ elif task == "AC Unit Requirements":
         if heat_load and capacity_per_unit:
             units_required = calculate_ac_units(heat_load, capacity_per_unit)
             st.success(f"Number of AC Units Required: {units_required}")
+            st.markdown("### Description and Recommendation")
+            st.write(f"For a total heat load of {heat_load:.2f} BTU, {units_required} unit(s) with a capacity of {capacity_per_unit:.2f} BTU each are required.")
 
-# Add Footer
+# Footer
 st.markdown("---")
-st.markdown("Built with ❤️ using Streamlit")
+st.markdown("Built with ❤️ using Streamlit for MEP Engineers")