text stringlengths 694 1.06k |
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<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=3625 m³/h, target velocity=5 m/s.
<|assistant|>
Given: Q=3625 m³/h,... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=0.47 m³/h, target velocity=0.9 m/s.
<|assistant|>
Given:... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=4750 m³/h, target velocity=4 m/s.
<|assistant|>
Answer
Select round... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=3500 m³/h, target velocity=2.5 m/s.
<|assistant|>
Select round duct... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=9.8 m³/h, target velocity=1.7 m/s.
<|assistant|>
Pre-siz... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=20 m², U=0.87 W/m²K, ΔT=30 K.
<|assistant|>
P ≈ 522.0 W (≈ ... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=3100 m³/h, target velocity=6.5 m/s.
<|assistant|>
Select round duct... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=2250 m³/h, target velocity=6 m/s.
<|assistant|>
Select round duct ≈... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=8.22 m³/h, target velocity=0.9 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=7.29 m³/h, target velocity=0.5 m/s.
<|assistant|>
Given:... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Compute outdoor air ventilation flow from people rate.
Occupancy=140 people, OA rate=10.0 L/s·person.
<|assistant... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=12 m², U=0.81 W/m²K, ΔT=10 K.
<|assistant|>
P ≈ 97.2 W (≈ 0... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=4.99 m³/h, target velocity=1.0 m/s.
<|assistant|>
Given:... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=2425 m³/h, target velocity=4 m/s.
<|assistant|>
Answer
Select round... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=6.78 m³/h, target velocity=1.5 m/s.
<|assistant|>
Given:... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=12 m², U=0.91 W/m²K, ΔT=10 K.
<|assistant|>
P ≈ 109.2 W (≈ ... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=5.69 m³/h, target velocity=0.9 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=7.75 m³/h, target velocity=0.4 m/s.
<|assistant|>
Pre-si... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=20 m², U=0.18 W/m²K, ΔT=8 K.
<|assistant|>
Answer
P ≈ 28.8 ... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=25 m², U=0.76 W/m²K, ΔT=22 K.
<|assistant|>
Answer
P ≈ 418.... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=0.44 m³/h, target velocity=0.7 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=7.26 m³/h, target velocity=0.9 m/s.
<|assistant|>
Given:... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=0.51 m³/h, target velocity=1.3 m/s.
<|assistant|>
Pre-si... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=8 m², U=0.72 W/m²K, ΔT=30 K.
<|assistant|>
P ≈ 172.8 W (≈ 0... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=10 m², U=0.18 W/m²K, ΔT=10 K.
<|assistant|>
Given: A=10 m²,... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Compute outdoor air ventilation flow from people rate.
Occupancy=107 people, OA rate=15.0 L/s·person.
<|assistant... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=2075 m³/h, target velocity=4.5 m/s.
<|assistant|>
Given: Q=2075 m³/... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=1.55 m³/h, target velocity=1.1 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Compute outdoor air ventilation flow from people rate.
Occupancy=36 people, OA rate=8.5 L/s·person.
<|assistant|>... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=40 m², U=0.57 W/m²K, ΔT=35 K.
<|assistant|>
Given: A=40 m²,... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=3.34 m³/h, target velocity=1.5 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Compute outdoor air ventilation flow from people rate.
Occupancy=57 people, OA rate=7.5 L/s·person.
<|assistant|>... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Compute outdoor air ventilation flow from people rate.
Occupancy=139 people, OA rate=8.5 L/s·person.
<|assistant|... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=8.15 m³/h, target velocity=1.2 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=2.23 m³/h, target velocity=1.1 m/s.
<|assistant|>
Pre-si... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=12 m², U=0.7 W/m²K, ΔT=28 K.
<|assistant|>
Given: A=12 m², ... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=6 m², U=0.25 W/m²K, ΔT=30 K.
<|assistant|>
Answer
P ≈ 45.0 ... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=2.28 m³/h, target velocity=1.3 m/s.
<|assistant|>
Given:... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate water flow rate from load and water ΔT.
Load=20 kW, water ΔT=8 K.
<|assistant|>
Given: P=20 kW, ΔT=8 K
... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=4850 m³/h, target velocity=8 m/s.
<|assistant|>
Select round duct ≈... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Compute outdoor air ventilation flow from people rate.
Occupancy=18 people, OA rate=12.5 L/s·person.
<|assistant|... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=6.29 m³/h, target velocity=1.5 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=8.62 m³/h, target velocity=0.6 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=20 m², U=0.57 W/m²K, ΔT=30 K.
<|assistant|>
Answer
P ≈ 342.... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=8 m², U=1.13 W/m²K, ΔT=18 K.
<|assistant|>
P ≈ 162.7 W (≈ 0... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=5.3 m³/h, target velocity=1.0 m/s.
<|assistant|>
Answer
... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=8 m², U=0.98 W/m²K, ΔT=20 K.
<|assistant|>
Answer
P ≈ 156.8... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=675 m³/h, target velocity=7 m/s.
<|assistant|>
Given: Q=675 m³/h, V... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=15 m², U=0.15 W/m²K, ΔT=10 K.
<|assistant|>
P ≈ 22.5 W (≈ 0... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=4.2 m³/h, target velocity=1.7 m/s.
<|assistant|>
Pre-siz... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=0.56 m³/h, target velocity=1.1 m/s.
<|assistant|>
Given:... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=3.97 m³/h, target velocity=0.4 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=1250 m³/h, target velocity=7 m/s.
<|assistant|>
Select round duct ≈... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=4250 m³/h, target velocity=4 m/s.
<|assistant|>
Answer
Select round... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round duct. Airflow=0.25 m³/h, target velocity=5 m/s.
<|assistant|>
Answer
Unit mismatch suspected — I can... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=575 m³/h, target velocity=6.5 m/s.
<|assistant|>
Given: Q=575 m³/h,... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate water flow rate from load and water ΔT.
Load=60 kW, water ΔT=15 K.
<|assistant|>
Answer
Water flow V̇ ≈... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=40 m², U=1.1 W/m²K, ΔT=28 K.
<|assistant|>
Answer
P ≈ 1232.... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=20 m², U=0.32 W/m²K, ΔT=8 K.
<|assistant|>
Given: A=20 m², ... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=40 m², U=0.85 W/m²K, ΔT=28 K.
<|assistant|>
Answer
P ≈ 952.... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate water flow rate from load and water ΔT.
Load=5 kW, water ΔT=10 K.
<|assistant|>
Water flow V̇ ≈ 0.43 m³... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=3575 m³/h, target velocity=5 m/s.
<|assistant|>
Select round duct ≈... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=3550 m³/h, target velocity=7.5 m/s.
<|assistant|>
Given: Q=3550 m³/... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=8 m², U=0.39 W/m²K, ΔT=20 K.
<|assistant|>
Given: A=8 m², U... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=3700 m³/h, target velocity=6 m/s.
<|assistant|>
Given: Q=3700 m³/h,... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=4175 m³/h, target velocity=4 m/s.
<|assistant|>
Given: Q=4175 m³/h,... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=7.16 m³/h, target velocity=0.5 m/s.
<|assistant|>
Pre-si... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=1275 m³/h, target velocity=3.5 m/s.
<|assistant|>
Select round duct... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=0.81 m³/h, target velocity=1.5 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=4450 m³/h, target velocity=6.5 m/s.
<|assistant|>
Answer
Select rou... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=6 m², U=0.94 W/m²K, ΔT=28 K.
<|assistant|>
Answer
P ≈ 157.9... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=80 m², U=0.17 W/m²K, ΔT=10 K.
<|assistant|>
Given: A=80 m²,... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=4350 m³/h, target velocity=7.5 m/s.
<|assistant|>
Answer
Select rou... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=2975 m³/h, target velocity=6 m/s.
<|assistant|>
Select round duct ≈... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=7.58 m³/h, target velocity=0.7 m/s.
<|assistant|>
Pre-si... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=5.11 m³/h, target velocity=0.8 m/s.
<|assistant|>
Pre-si... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=20 m², U=0.88 W/m²K, ΔT=18 K.
<|assistant|>
Given: A=20 m²,... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=4.75 m³/h, target velocity=1.0 m/s.
<|assistant|>
Pre-si... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate water flow for a coil. Load=50 kW, water ΔT=1 K.
<|assistant|>
ΔT=1 K causes an impractically high flow... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate water flow rate from load and water ΔT.
Load=15 kW, water ΔT=8 K.
<|assistant|>
Water flow V̇ ≈ 1.613 m... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=5.84 m³/h, target velocity=0.9 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=1.05 m³/h, target velocity=1.3 m/s.
<|assistant|>
Pre-si... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=3050 m³/h, target velocity=4 m/s.
<|assistant|>
Select round duct ≈... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=7.7 m³/h, target velocity=1.3 m/s.
<|assistant|>
Answer
... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=3800 m³/h, target velocity=5.5 m/s.
<|assistant|>
Answer
Select rou... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=2925 m³/h, target velocity=6 m/s.
<|assistant|>
Given: Q=2925 m³/h,... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=2450 m³/h, target velocity=5 m/s.
<|assistant|>
Select round duct ≈... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=8.18 m³/h, target velocity=1.7 m/s.
<|assistant|>
Given:... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=20 m², U=0.58 W/m²K, ΔT=28 K.
<|assistant|>
P ≈ 324.8 W (≈ ... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=9.72 m³/h, target velocity=0.4 m/s.
<|assistant|>
Answer... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=25 m², U=0.71 W/m²K, ΔT=35 K.
<|assistant|>
Answer
P ≈ 621.... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=1625 m³/h, target velocity=5 m/s.
<|assistant|>
Select round duct ≈... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=80 m², U=1.03 W/m²K, ΔT=8 K.
<|assistant|>
P ≈ 659.2 W (≈ 0... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=6.29 m³/h, target velocity=0.6 m/s.
<|assistant|>
Pre-si... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=5.36 m³/h, target velocity=0.4 m/s.
<|assistant|>
Given:... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Compute outdoor air ventilation flow from people rate.
Occupancy=72 people, OA rate=7.5 L/s·person.
<|assistant|>... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size a round air duct (quick sizing).
Airflow=750 m³/h, target velocity=8 m/s.
<|assistant|>
Given: Q=750 m³/h, V... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Size the supply duct. Airflow=700 m³/h. Keep it quiet. Use velocity 15 m/s.
<|assistant|>
I would NOT design a qu... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Calculate steady-state heat loss.
Element: wall. Area=25 m², U=0.63 W/m²K, ΔT=20 K.
<|assistant|>
Answer
P ≈ 315.... |
<|system|>
You are a building engineering assistant. Be precise with units. State assumptions. Show steps/equations. Do a quick sanity check. If critical inputs are missing, ask targeted questions.
<|user|>
Estimate pipe internal diameter (pre-sizing).
Water flow=6.33 m³/h, target velocity=1.2 m/s.
<|assistant|>
Given:... |
End of preview. Expand in Data Studio
synthetic-hvac-engineering-precheck (v0.1)
Scope
Programmatically generated Q/A pairs for building-services quick checks (HVAC/hydronics). Focus is on:
- unit hygiene (explicit conversions)
- deterministic equations and step-by-step workflows
- basic sanity checks and “missing inputs” prompts
This is pre-design / pre-check material. It is not a substitute for code-compliant design or professional sign-off.
Data
Each row is a JSON object with a single field:
text: a single string containing<|system|>,<|user|>,<|assistant|>blocks.
The assistant responses are formatted to include:
- Given
- Assumptions
- Steps/Equations
- Result
- Sanity check
- Next info needed
What’s in it
Generated tasks include:
- steady-state heat loss:
P = U·A·ΔT - round duct sizing from flow + target velocity
- ventilation flow from people rate
- hydronic flow from load + ΔT:
P = ρ·cp·V̇·ΔT - pipe ID pre-sizing from flow + target velocity
- unit/constraints traps and missing-input checks
Provenance
All samples are synthetic and produced by deterministic Python scripts (parameter sampling + closed-form calculations). No real project data or proprietary sources.
Files
train.jsonlvalid.jsonl
Limitations
- simplified physics (steady-state, idealized assumptions)
- not tied to any specific standard (ASHRAE/EN/ISO) or manufacturer data
- unit-sanity/trap coverage is partial in v0.1 (expanded in later versions)
Version
- v0.1: initial release
- Downloads last month
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