New thermal charts
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fraxle
2026-05-15 14:00:54 +01:00
parent 153029c645
commit dd5b44ece3
4 changed files with 79 additions and 57 deletions
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</p>
<p>
<strong>Indoor temperature.</strong> The <em>Indoors</em> column estimates the temperature
inside a building with windows closed and no air conditioning, simulating wall conduction,
window solar gain, and thermal mass hour by hour. You choose your building type from a dropdown
inside a building with windows closed and no air conditioning, simulating retained warmth,
window solar gain, internal gains, and thermal mass hour by hour. You choose your building type from a dropdown
— brick, modern insulated, Victorian terrace, stone cottage, timber frame, top-floor flat, or
conservatory — and the physics model adjusts accordingly. Each type has its own insulation
level, thermal mass, and glazing characteristics, so a stone cottage and a conservatory behave
very differently on a hot day. Indoor temperatures typically peak 24 hours after the outdoor
level, thermal mass, retained warmth, and glazing characteristics, so a stone cottage and a conservatory behave
very differently on a hot day. The model now lags toward a realistic hourly target rather
than repeatedly adding solar heat, so indoor temperatures typically peak 24 hours after the outdoor
peak, which is why a house can still feel stifling at 10 pm on a summer day. Tick
<em>Managed</em> alongside the dropdown to switch to the heatwave-advice model: curtains
closed by day to cut solar gain, windows opened whenever outdoor air is cooler than inside.
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For managing indoor comfort without air conditioning. The indoor temperature column is
central: select your building type from the dropdown (UK brick, modern insulated, Victorian
terrace, stone cottage, timber frame, top-floor flat, or conservatory) and the physics model
adjusts for that building's insulation, thermal mass, and glazing characteristics. Tick
adjusts for that building's insulation, retained warmth, thermal mass, and glazing characteristics. Tick
<strong>Managed</strong> to switch to the heatwave-advice model — curtains closed by day
to block solar gain, windows opened whenever outdoor air is cooler than inside.
Indoor temperatures typically peak 24 hours after the outdoor peak due to thermal mass,
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<tr><td><strong>Soil moisture</strong></td><td>Volumetric water content of the top 1 cm of soil in m³/m³. Above 0.4 indicates saturated ground; below 0.2 is dry. Useful for assessing whether ground is workable, and for motorhome or caravan pitch suitability.</td></tr>
<tr><td><strong>Concrete °C</strong></td><td>Estimated temperature of sun-exposed urban paving. Concrete absorbs more solar energy than grass and cannot cool itself through evaporation — surface temps can run 1525 °C above air temperature on sunny days.</td></tr>
<tr><td><strong>Vehicle °C</strong></td><td>Estimated ambient cabin temperature inside a sealed, parked vehicle — adjusted for your chosen vehicle type. Values above 35 °C are dangerous for children and pets; above 45 °C potentially fatal within minutes.</td></tr>
<tr><td><strong>Indoors °C</strong></td><td>Estimated temperature inside a building with windows closed and no active cooling. Select your building type from the dropdown — brick, modern insulated, Victorian terrace, stone cottage, timber frame, top-floor flat, or conservatory. Each type has its own insulation, thermal mass, and glazing characteristics. Indoor peak typically lags the outdoor peak by 24 hours due to thermal mass.</td></tr>
<tr><td><strong>Indoors °C</strong></td><td>Estimated temperature inside a building with windows closed and no active cooling. Select your building type from the dropdown — brick, modern insulated, Victorian terrace, stone cottage, timber frame, top-floor flat, or conservatory. Each type has its own insulation, retained warmth, thermal mass, and glazing characteristics. Indoor peak typically lags the outdoor peak by 24 hours due to thermal mass.</td></tr>
<tr><td><strong>Managed °C</strong></td><td>The same building model with two interventions applied: curtains closed by day to block solar gain, and windows opened whenever outdoor air is cooler than inside. Toggle with the Managed tick next to the building dropdown. Shows how much passive cooling can reduce indoor heat compared to doing nothing.</td></tr>
</tbody>
</table>