What is ISO 13370:2017-Thermal performance of buildings-Heat transfer via the ground-Calculation methods?
ISO 13370:2017-Thermal performance of buildings provides guidelines and methods for calculating heat transfer between buildings and the ground. It is important in the field of building energy efficiency and thermal performance assessment, especially for buildings that have contact with the ground or are partially below ground level, such as basements or earth-sheltered structures.
The standard outlines various calculation methods and procedures for assessing heat transfer through the ground, taking into account factors like thermal conductivity, ground temperature variations, and the geometry and construction of the building in question. It covers both steady-state and transient heat transfer scenarios, helping designers and engineers evaluate the thermal performance of building components that interact with the ground.
ISO 13370:2017 is valuable for designing energy-efficient buildings and optimizing their heating and cooling systems, as it allows for a more accurate estimation of the heat transfer through the building’s foundation and walls. Compliance with this standard can contribute to better energy conservation and thermal comfort in buildings, which is particularly important in addressing environmental concerns and reducing energy consumption in the construction and operation of buildings.
Requirements of ISO 13370:2017-Thermal performance of buildings
ISO 13370:2017 provides detailed requirements and guidelines for calculating heat transfer via the ground in the context of thermal performance of buildings. Below are some key requirements and aspects covered by this standard:
- Scope and Objectives: The standard outlines its scope and objectives, emphasizing that it’s focused on methods for calculating heat transfer between buildings and the ground.
- Terms and Definitions: ISO 13370 includes a section defining key terms and concepts related to heat transfer and thermal performance, ensuring a common understanding of terminology.
- Thermal Properties of Materials: The standard specifies the thermal properties of materials relevant to ground heat transfer calculations, such as thermal conductivity and heat capacity of the ground, building materials, and insulation.
- Boundary Conditions: It defines the boundary conditions for heat transfer calculations, including ground temperature profiles, surface conditions, and environmental factors.
- Geometric and Material Data: The standard requires the collection and specification of geometric and material data for the building and its surrounding ground, as this information is essential for accurate calculations.
- Calculation Methods: ISO 13370 provides various calculation methods for steady-state and transient heat transfer, taking into account factors like heat conduction, heat convection, and radiation. It provides guidance on how to apply these methods effectively.
- Verification and Validation: It outlines procedures for verifying and validating the results obtained through the calculation methods, ensuring the accuracy and reliability of the thermal performance assessment.
- Reporting Requirements: The standard specifies what information should be included in reports related to heat transfer calculations. This includes details about the building, the ground, the calculation methods used, and the results obtained.
- Use of Numerical Methods: ISO 13370 acknowledges the use of numerical methods and computer simulations for complex heat transfer scenarios. It provides guidelines on using these methods effectively and ensuring their accuracy.
- Quality Assurance: The standard emphasizes the importance of quality assurance in the calculation process, including the need for qualified personnel, documentation of assumptions and input data, and validation of the results.
- Documentation and Records: ISO 13370 requires the documentation and retention of all data, calculations, and reports related to heat transfer via the ground, ensuring traceability and accountability.
- References: The standard provides a list of references to other relevant standards and documents that can be consulted for further information.
Compliance with ISO 13370:2017 helps ensure that the calculation methods used for assessing heat transfer via the ground in buildings are standardized and accurate, ultimately contributing to improved energy efficiency and thermal performance of buildings
Benefits of ISO 13370:2017-Thermal performance of buildings
ISO 13370:2017 provides several benefits to the construction industry, building designers, engineers, and policymakers by standardizing the calculation methods for heat transfer via the ground in the context of thermal performance of buildings. Some of the key benefits include:
- Energy Efficiency Improvement: ISO 13370 helps in optimizing the design and operation of buildings by accurately assessing heat transfer through the ground. This leads to more energy-efficient buildings, reducing heating and cooling loads and, consequently, energy consumption.
- Improved Thermal Comfort: Buildings designed with the guidance of ISO 13370 are more likely to provide consistent and comfortable indoor temperatures throughout the year, enhancing the occupants’ comfort and well-being.
- Environmental Impact Reduction: Energy-efficient buildings contribute to lower greenhouse gas emissions and reduced environmental impact. This aligns with sustainability goals and environmental regulations.
- Cost Savings: Reduced energy consumption translates into lower utility bills for building owners and occupants. Over the life cycle of a building, this can lead to significant cost savings.
- Optimized Building Design: The standard encourages the use of effective insulation and construction techniques, which can lead to better building designs and materials selection, reducing long-term maintenance and operational costs.
- Compliance and Regulation: ISO 13370 provides a recognized and standardized methodology for assessing thermal performance. This can assist in demonstrating compliance with building codes and regulations related to energy efficiency.
- Enhanced Building Performance Prediction: Architects and engineers can use the standard’s methods to predict and compare the thermal performance of different building designs, allowing for informed decision-making during the design phase.
- International Consistency: ISO 13370 is an international standard, which means that its methods and guidelines are consistent across borders. This helps in harmonizing building practices and promoting international cooperation in the construction industry.
- Quality Assurance: The standard emphasizes quality assurance, which ensures that calculations are performed accurately and consistently. This reduces the risk of errors and discrepancies in thermal performance assessments.
- Research and Innovation: ISO 13370 provides a framework for researchers and innovators to develop new materials, technologies, and building designs that can further improve thermal performance and energy efficiency.
- Long-Term Sustainability: By reducing energy consumption and the environmental footprint of buildings, ISO 13370 contributes to the long-term sustainability of the built environment.
In summary, ISO 13370:2017 plays a crucial role in promoting energy-efficient and environmentally friendly building practices. It helps stakeholders in the construction industry make informed decisions, achieve compliance with regulations, reduce energy costs, and create more comfortable and sustainable buildings.
Who needs ISO 13370:2017-Thermal performance of buildings
ISO 13370:2017, which deals with the thermal performance of buildings and heat transfer via the ground, is relevant to a range of stakeholders in the construction and building industry.
Here are some of the key groups and individuals who can benefit from or need to consider this standard:
- Architects and Building Designers: Architects and building designers use ISO 13370 to optimize the design of energy-efficient buildings, especially those with foundations or parts in contact with the ground.
- Civil Engineers: Civil engineers involved in building construction need to understand ground heat transfer for proper foundation design and to ensure the structural integrity and energy efficiency of buildings.
- Mechanical Engineers: Mechanical engineers utilize the standard to design and size heating, ventilation, and air conditioning (HVAC) systems to account for ground heat transfer, leading to more efficient HVAC systems.
- Energy Consultants: Energy consultants rely on ISO 13370 to assess the thermal performance of buildings and recommend energy-saving measures to clients.
- Building Contractors: Contractors can use the standard to ensure that the construction of buildings with ground contact is in compliance with energy efficiency and thermal performance requirements.
- Building Owners and Managers: Building owners and managers can benefit from ISO 13370 by understanding how their building’s design affects energy consumption and thermal comfort, enabling them to make informed decisions about maintenance and upgrades.
- Regulatory Authorities: Regulatory authorities and government agencies responsible for building codes and energy efficiency standards may reference ISO 13370 in their regulations to ensure compliance with energy performance requirements.
- Environmental Organizations: Environmental organizations may use the standard to advocate for sustainable building practices and energy efficiency initiatives.
- Researchers and Academics: Researchers and academics in fields related to building science, thermal performance, and energy efficiency can use ISO 13370 as a reference in their studies and as a basis for further research.
- Energy Auditors: Professionals conducting energy audits of existing buildings can apply ISO 13370 methods to assess the building’s thermal performance and recommend improvements.
- Green Building Certifications: Green building certification programs, such as LEED (Leadership in Energy and Environmental Design) or BREEAM (Building Research Establishment Environmental Assessment Method), may require compliance with ISO standards, including ISO 13370, as part of their criteria.
- Real Estate Developers: Developers interested in constructing energy-efficient and environmentally friendly buildings can use ISO 13370 to evaluate the feasibility of their projects and meet sustainability goals.
- Facility Managers: Facility managers can use the standard to understand the thermal performance of their buildings and implement energy-saving measures, maintenance practices, and retrofit projects.
In summary, ISO 13370:2017 is a valuable resource for a wide range of professionals and organizations involved in the construction, operation, and regulation of buildings. It provides essential guidance for assessing and improving the thermal performance of buildings with ground contact.