My name is DIMA AURELIAN and I am engineer , physicist , programmer and energy auditor for buildings.
I live and work in Bucharest , Romania.
In 2023 I created an Application for calculating Energy Performance Certificates , Energy Audits and others Energy Studies and Raports.You can see about it here
Energy Performance of Buildings ( EPB ) - calculations and tutorials for energy auditors
This website is in development and I think at the last part of 2025 will be at 100% of information . Every week it increases , even now it contains a LARGE AMOUNT OF USEFUL INFORMATION.
This website and the website of the application have in the right corner , near the Menu a language selector and you can see both websites in your native language.
Unfortunatly the application is on the moment , only for Romania and in romanian language but you can make an ideea about it . Is a difficult thing to make a good Aplication for romanian market to work in another country.There are a few steps to make an romanian Aplication to work for let say Germany.First I have to translate it in german , to go to a validation comision in Germany and sell it there.
To sell it in an European country is less complicated then to sell it let say for USA.That is more complicated because , here in Europe we have the same STANDARDS for Energy Performance of Building Calculations.
In USA is a different STANDARD , in China another , another in India , etc.
Energy Performance of Buildings ( EPB ) , calculations and tutorials for energy auditors are on the moment partially presented in different countries . Even if the PHYSICAL PROCESSES and mathematics behind them are the same in any part of the world , the Terminology and Abreviations are differently . Also the Methodology witch describes the exact steps to be made for calculating Energy Performance of Building are differently from each country.
But fortunately I can use my application to describe you the PHYSICAL processes for heat flows in Building and the uses of differently Instalations.
Let’s take a look of the relation between Physical phenomenons and National Methodologies of Energy Performance of Buildings in differently countries :
In this website , Energy Performance of Buildings ( EPB ) – calculations and tutorials for energy auditors , I will describe the PHYSICAL PHENOMENONS and in ecuations I will use European Standards endings and adnotations.
I will descibe all very clear to understand the Phenomenons independent of endings and adnotations.
Here is a list of European Standards related with Energy Performance of Buildings :
European standards in the field of energy performance of buildings are issued by the European Committee for Standardisation (CEN)
1.EN 16798–1 – Energy performance of buildings – Ventilation of buildings. Part 1: Environmental parameters for the design and evaluation of the energy performance of buildings, regarding indoor air quality, thermal comfort, lighting and acoustics (Module M1–6),
2.EN 15459-1 – Energy performance of buildings. Procedure for the Economic Assessment of Energy Systems in Buildings Part 1: Calculation Procedures, Module M1-14,
3.EN ISO 52016-1 – Energy performance of buildings. Energy requirements for heating and cooling, indoor temperatures, and sensible and latent thermal loads. Part 1: Calculation Methods,
4.EN ISO 13370 – Thermal performance of buildings. Heat transfer through the soil. Calculation methods,
5.EN 15316–1 – Energy performance of buildings. Method of calculating the energy requirement and efficiency of the installations. Part 1: General and Energy Performance Expression, Modules M3-1, M3-4, M3-9, M8-1, M8-4,
6.EN 12831–1 – Energy performance of buildings. Method of calculating the thermal sizing load. Part 1: Heat Requirement for Heating, Module M3-3,
7.EN 15316–2 – Energy performance of buildings. Method of calculating the energy requirement and efficiency of the installations. Part 2: Emission systems (heating and cooling), Modules M3-5, M4-5,
8.EN 15316–3 – Energy performance of buildings. Method of calculating the energy requirement and efficiency of the installations. Part 3: Distribution systems (hot water, heating and cooling), Modules M3-6, M4-6, M8-6,
9.EN 15316–5 – Energy performance of buildings. Method of calculating the energy requirement and efficiency of the installations. Part 5: Storage systems for heating and hot water installations for consumption (not cooling), Modules M3-7, M8-7,
10.EN 15316–4-1 – Energy performance of buildings. Method of calculating the energy requirement and efficiency of the installations. Part 4-1: Heat generation systems for heating and hot water preparation: combustion plants (boilers, biomass), Modules M3-8-1, M8-8-1,
11.EN 15316–4-2 – Energy performance of buildings. Method of calculating the energy requirement and efficiency of the installations. Part 4-2: Heat generation systems for heating: heat pumps, Modules M3-8-2, M8-8-2,
12.EN 15316–4-3 – Energy performance of buildings. Method of calculating the energy requirement and efficiency of the installations. Part 4-3: Heat production systems: solar and photovoltaic thermal installations, Modules M3-8-3, M8-8-3, M11-8-3,
13.EN 15316-4-4 – Energy performance of buildings. Method of calculating the energy requirement and efficiency of the installations. Part 4-4: Heat generation systems: building-integrated cogeneration plants, Modules M8-3-4, M8-8-4, M8-11-4,
14.EN 15316-4-5 – Energy performance of buildings. Method of calculating the energy requirement and efficiency of the installations. Part 4-5: District heating and cooling. Modules M3-8-5, M4-8-5, M8-8-5, M11-8-5,
15.EN 15316-4-8 – Energy performance of buildings. Method of calculating the energy requirement and efficiency of the installations. Part 4-8: Heat generation systems for heating: suspended radiant panels and hot air heating installations, including stoves (local) Module M3-8-8,
16.EN 15378–1 – Energy performance of buildings. Heating and hot water installations for consumption in buildings. Part 1: Inspection of boilers, heating and hot water installations, Modules M3-11, M8-11,
17.EN 16798–9 – Energy performance of buildings. Ventilation of buildings. Part 9: Calculation methods for the energy requirement of cooling systems (Modules M4-1, M4-4, M4-9). General
18.EN 16798–15 – Energy performance of buildings. Ventilation of buildings. Part 15: Calculation of cooling systems. (M4-7 module). Storage
19.EN 16798–13 – Energy performance of buildings. Part 13: M4-8 Module. Calculation of cooling systems. Production
20.EN 16798–17 – Energy performance of buildings. Ventilation of buildings. Part 3: For Non-Residential Buildings. Performance requirements for room ventilation and air conditioning systems (Modules M5-1, M5-4),
21.EN 12831–3 – Energy performance of buildings. Method of calculating the thermal sizing load. Part 3: Heat Requirements for Drinking Hot Water Preparation and Characterization of Requirements, Modules M8-2, M8-3,
22.EN 15193–1+A1 – Energy performance of buildings. Energy requirements for lighting. Part 1: Specifications, M9 Module,
23.EN 16798-1:2019/NA:2019 – Energy performance of buildings. Ventilation of buildings. Part 1: Environmental parameters for the design and evaluation of the energy performance of buildings, regarding indoor air quality, thermal comfort, lighting and acoustics. Module M1-6. National annex,
24.EN 16798-7:2018 – Energy performance of buildings. Ventilation of buildings. Part 7: Calculation methods for determining air flow rates in buildings, including by infiltration (Module M5-5),
25.EN 16798-5-1:2018 – Energy performance of buildings. Ventilation of buildings – Part 5-1: Calculation methods for the energy requirements of ventilation and air conditioning systems. Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8. Method 1: Distribution and production,
26.EN 16798-5-2:2018 – Energy performance of buildings. Ventilation of buildings. Part 5-2: Calculation methods for the energy requirements of ventilation systems (Modules M5-6, M5 8, M6-5, M6-8, M7-5, M7-8). Method 2 – Distribution and production,
27.EN 16798-3:2018 – Energy performance of buildings. Ventilation of buildings. Part 3: For Non-Residential Buildings. Performance requirements for room ventilation and air conditioning systems (Modules M5-1, M5-4),
28.EN 12831-1:2017/C91:2019 – Energy performance of buildings. Method of calculating the thermal sizing load. Part 1: Heat Requirement for Heating, Module M3-3,
29.EN 12831-1:2017/NA:2022 – Energy performance of buildings. Method of calculating the thermal sizing load. Part 1: Heat Requirements for Heating, Module M3-3. National annex.
The most important one is the EN ISO 52016-1 .
I you want to deepen your study of the Energy Performance of Buildings , over which I will present you in the Tutorials , you can consider to buy one of these Standards.
They are not cheap , they cost between 150 – 400 Euro / each.
You can buy them from Standards sellers from internet.