ISO 13612-2:2014 PDF

Heating and cooling systems in buildings — Method for calculation of the system performance and system design for heat pump systems — Part 2: Energy calculation

Open preview (PDF)

Title (English):

ISO 13612-2:2014

Heating and cooling systems in buildings — Method for calculation of the system performance and system design for heat pump systems — Part 2: Energy calculation

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 116
Publication date:: May 6, 2014
Edition:: ISO IS 13612 edition 1 version 1
ICS:: 27.080

Delivery type:

Full version25 €Read online 24h10 €Read online 72h15 €

Document language:

enru

Delivery time:Immediate download

Price:25 €

Description (English):

ISO 13612 is applicable to heat pumps for space heating and cooling, heat pump water heaters (HPWH), and heat pumps with combined space heating and/or cooling and domestic hot water production, in alternate or simultaneous operation, where the same heat pump is used for space heating and domestic hot water heating. ISO 13612-2:2014 provides a calculation method under steady conditions that corresponds to one calculation step. The results of this calculation are incorporated in larger building models and take into account the influence of the external conditions and building control that influence the energy requirements for heating and cooling supplied by the heat pump system. ISO 13612-2:2014 specifies the required inputs, calculation methods, and required outputs for output thermal power generation for space heating and cooling and domestic hot water production of the following heat pump systems, including control: electrically driven vapour compression cycle (VCC) heat pumps; combustion engine-driven vapour compression cycle heat pumps; thermally driven vapour absorption cycle (VAC) heat pumps; using combinations of heat source and heat distribution.

Technical details

Technical committee: ISO/TC 205 - Building environment design
SKU: ISO 13612-2:2014

Abstract

Overview

ISO 13612-2:2014 - Heating and cooling systems in buildings - Part 2: Energy calculation - defines a steady-state method for calculating the energy performance of heat pump systems used for space heating, space cooling and domestic hot water (DHW). The standard provides a single-step calculation routine whose results are intended to be incorporated into larger building energy models. It covers electrically driven vapour-compression cycle (VCC) heat pumps, combustion-engine driven VCC, and thermally driven vapour absorption cycle (VAC) heat pumps, including combinations of heat sources and distribution types (outdoor air, exhaust air, ground/water sources, DX/VRF, etc.).

Key topics and requirements

Scope of calculation: steady conditions corresponding to one calculation step (hour, month, bin or season) to represent energy use for heating, cooling and DHW.
Inputs and outputs: specifies required input data (product performance characteristics, external conditions, control settings) and required outputs for thermal power generation and energy use.
System boundary and schematization: defines what is included in the generation subsystem and how the heat pump is represented for heating, cooling and DHW modes.
Performance metrics: uses COP (coefficient of performance) and effective power input; includes procedures for tabulated COP values and interpolation/part-load handling.
Auxiliary energy: clarifies auxiliary vs driving energy (fans, pumps, controls) and how these are counted in the calculation.
Loss accounting: procedures for recoverable, recovered and unrecoverable heat losses from the generation subsystem and generator envelope.
Operational factors: calculation of running time, backup heaters, cut-out periods and control interactions.
Annex material: informative annexes include COP matrix construction, interpolation methods, part-load COP calculations, a BEST program model, and energy evaluation for combined or special HPWH and combined systems.

Applications and users

ISO 13612-2:2014 is intended for:

HVAC and building services engineers performing heat pump energy calculations and system design verification.
Energy modelers and consultants integrating heat pump generation performance into whole-building energy performance assessments.
Manufacturers and test labs translating product performance data (COP, capacity) into system-level energy outcomes.
Regulators and certification bodies assessing compliance with energy targets and comparing system options. Practical uses include compliance checks, optimisation of heat pump configurations, comparison of alternative heat sources/distributions, and evaluation of energy conservation measures.

Related standards

ISO 13612‑1 - Design and dimensioning (complements Part 2)
ISO 13790 - Building energy calculation methods
ISO 13675 - Combustion systems (boilers) energy calculation methods
EN ISO 7345, ISO/TR 16344 - supporting terms, definitions and thermal quantities

Keywords: ISO 13612-2:2014, heat pump energy calculation, COP, HPWH, building energy modelling, auxiliary energy, heat pump systems.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and requirements

Scope of calculation: steady conditions corresponding to one calculation step (hour, month, bin or season) to represent energy use for heating, cooling and DHW.
Inputs and outputs: specifies required input data (product performance characteristics, external conditions, control settings) and required outputs for thermal power generation and energy use.
System boundary and schematization: defines what is included in the generation subsystem and how the heat pump is represented for heating, cooling and DHW modes.
Performance metrics: uses COP (coefficient of performance) and effective power input; includes procedures for tabulated COP values and interpolation/part-load handling.
Auxiliary energy: clarifies auxiliary vs driving energy (fans, pumps, controls) and how these are counted in the calculation.
Loss accounting: procedures for recoverable, recovered and unrecoverable heat losses from the generation subsystem and generator envelope.
Operational factors: calculation of running time, backup heaters, cut-out periods and control interactions.
Annex material: informative annexes include COP matrix construction, interpolation methods, part-load COP calculations, a BEST program model, and energy evaluation for combined or special HPWH and combined systems.

Applications and users

ISO 13612-2:2014 is intended for:

HVAC and building services engineers performing heat pump energy calculations and system design verification.
Energy modelers and consultants integrating heat pump generation performance into whole-building energy performance assessments.
Manufacturers and test labs translating product performance data (COP, capacity) into system-level energy outcomes.
Regulators and certification bodies assessing compliance with energy targets and comparing system options. Practical uses include compliance checks, optimisation of heat pump configurations, comparison of alternative heat sources/distributions, and evaluation of energy conservation measures.

Related standards

ISO 13612‑1 - Design and dimensioning (complements Part 2)
ISO 13790 - Building energy calculation methods
ISO 13675 - Combustion systems (boilers) energy calculation methods
EN ISO 7345, ISO/TR 16344 - supporting terms, definitions and thermal quantities

Keywords: ISO 13612-2:2014, heat pump energy calculation, COP, HPWH, building energy modelling, auxiliary energy, heat pump systems.

ISO 13612-2:2014 PDF

Technical details

Abstract

Overview

Key topics and requirements

Applications and users

Related standards

Related standards

Abstract

Overview

Key topics and requirements

Applications and users

Related standards

Related standards

Heating and cooling systems in buildings — Method for calculation of the system performance and system design…

Thermal performance of buildings — Calculation of energy use for space heating

Heating systems in buildings — Method and design for calculation of the system energy performance — Combustio…

Thermal performance of buildings and building components - Physical quantities and definitions (ISO 7345:2018)

Energy performance of buildings. Common terms, definitions and symbols for the overall energy performance rat…