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coefficient of performance
Cooling System COP
The
Coefficient
of
Performance
is the ratio
of
useful energy vs the input energy… COP
of
a cooling system is the ratio
of
useful heat removed over the work required… A COP
of
1 means that all input work is used to remove heat
Written by
Patrick Pease
Updated over a week ago
United Kingdom National Calculation Methodology (NCM) and cove.tool
The cooling set point and mechanical system
Coefficient
of
Performance
(COP) values are taken from NCM… The national calculation methodology (NCM) for the Energy
Performance
of
Buildings Directive (EPBD) is… The default envelope values in cove.tool are referenced from 'Table 3 Limiting Fabric Parameters'
of
Written by
Akshay Padwal
Updated over a week ago
Heating Systems COP
The
Coefficient
of
Performance
is the ratio
of
useful energy vs the input energy… COP
of
a heating system is the ratio
of
useful heat supplied over the work required… A COP
of
1 means that all input work is converted to heat
Written by
Patrick Pease
Updated over a week ago
Variable Refrigerant Flow (VRF) Systems
When considering the efficiency and effectiveness
of
an air-source VRF system, the
coefficient
of
performance
… VRF
Performance
… (COP) is typically the best metric – the higher the COP, the better the
performance
– and it's dependent
Written by
Akshay Padwal
Updated over a week ago
How to do a Tenant Improvement or TI Analysis in cove.tool?
Interior architects and designers can analyze the impact
of
tenant improvements like LPD, HVAC, material selection, and more… inputs for Integrated Part Load Value (IPLV),
coefficient
of
performance
(CoP), heat recovery system…
of
the project
Written by
Marco Aguirre
Updated over a week ago
Central Components
Heating COP: The gross rated heating
coefficient
of
performance
of
the heat pump… Rated Power - The nominal full output power consumption
of
the unit in watts, exclusive
of
the blower… Rated Power - The nominal full output power consumption
of
the unit, exclusive
of
the blower fan power
Written by
Daniel Salinas
Updated over a week ago
Zone Equipment Inputs
Rated Heating COP: The gross rated heating
coefficient
of
performance
of
the heat pump… Rated Cooling COP: The rated cooling
coefficient
of
performance
of
the heat pump… Rated COP: The
coefficient
of
performance
of
the DX cooling coil unit at rated conditions
Written by
Daniel Salinas
Updated over a week ago
Facade Thermal
Performance
cove.tool calculates the impact
of
different
performance
categories for different glazing transitions… Facade thermal Inputs (W/m K): The rating
of
thermal
performance
from poor to efficient, based on similar… Balcony Thermal
Performance
(W/m K): also known as Linear Transmittance, is the Heat flow
coefficient
Written by
Akshay Padwal
Updated over a week ago
Wall Emissivity
The surface
of
a perfect black body has an emissivity
of
1, objects with lower emissivities emit radiation… Emissivity
Coefficient
( ε )… A list
of
sample wall emissivity values can be found below
Written by
Marco Aguirre
Updated over a week ago
Glazing
For those who need a refresher, the Shading
Coefficient
describes the ability
of
a window or shading… The window shading
coefficient
of
windows, blinds, or shades is directly proportional to the solar heat… How is your glass impacting your energy
performance
?
Written by
Akshay Padwal
Updated over a week ago
