Water Radiant / Convective
The water radiant/convective equipment is a zone level hot water baseboard heater unit It calculates the convective and radiant heat transfer from water baseboard heaters to the people and the surfaces within a zone. The radiant heat gains are distributed to the surfaces by percentages defined by the user.
Nominal Heating Capacity
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Default: Autosize
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Typical Range: x > 0
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Min Max: x > 0
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Units: % Htg Capacity, Btuh, Btuh/ft2, kW, MBh, tons, tons/ft2, W, W/ft2, W/m2
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This field represents the radiant/convective water baseboard unit heating capacity.
Radiant
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Default: 50%
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Typical Range: 50%
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Min Max: 0 to 100%
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Units: %
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This field specifies what percentage of the power input to the baseboard heater is actually transferred to the space as radiant heat. This is the portion of the total power that is modeled as radiation.The portion that is radiant heat transfer from the baseboard heater is distributed to people and specific surfaces.
Radiant Incident on People
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Default: 50%
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Typical Range: 50%
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Min Max: 0 to 100%
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Units: %
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This field specifies the percentage of radiant portion of heat transfer to the zone from the baseboard heater that is incident directly on people within the space. This has an impact on the predicted thermal comfort of the zone occupants. The basic assumption here is that most radiant energy falling on people will most likely be re-released to the zone air by convection. This is a simplification of reality, but it maintains the overall energy balance. Note that the sum of the percentage of all radiant energy must equal 100% so the remainder of the energy that doesn’t get absorbed by people will impact the zone surfaces.
Rated Avg. Water Temperature
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Default: 190°F / 87.7°C
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Typical Range: 150°F to 239°F / 65.56°C to 115.36°C
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Min Max: 68°F to 302°F / 20°C to 150°C
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Units: °F/°C
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This field is the rated average water temperature for the baseboard heater which can be found in the manufacturer’s literature.
Rated Water Mass Flow
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Default: 1 gpm / 0.063 Kg/s
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Typical Range: 1 to 4gpm / 0.063 to 0.252Kg/s
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Min Max: N/A
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Units: gpm, Kg/hr, Kg/s
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This field is the rated standard water flow rate which can be found in the manufacturer’s literature.