Energy modeling of Industrial or commercial buildings
Bhati, Gaurav (2021)
Diplomityö
2021
School of Energy Systems, Energiatekniikka
Kaikki oikeudet pidätetään.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2021090645243
https://urn.fi/URN:NBN:fi-fe2021090645243
Tiivistelmä
The main motive of the thesis is to study the energy consumption of any building with advanced energy solutions. We started from the basics i.e. by creating a general model of a building, in this case, it is a student apartment. This model shows the replica of a real building located in Garbsen, Germany. The ultimate aim is to make it a near-zero energy building. There are some other things which we need to consider like CO2 emissions and technical solutions to make it net-zero or nearly zero.
The simulation work is performed with IDA ICE (v4.8). This software provides a lot of flexibility to customize building and possibility for input and to determine and investigate important parameters, variables, and values.
The simulation is done by making replica models. There are few changes in the model so that there is improvement in different losses and energy conservation. The real building does not have any renewable energy source. It gets all its energy from the grid. The model developed by IDA ICE has a wind turbine, solar panels for electricity and thermal, heat pumps. A wind turbine with a capacity of 10kW has been installed along with solar panels with a surface area of 4000 m2. In this work, two models with different envelop properties have been compared to show the variation causes due to heat transfer coefficient. The simulation takes nearly 4-5 hours to complete after all required and mandatory inputs. The result has a significant difference from model1 to model2. Model 1 fulfills only 58.88 of building energy demand and on the other hand, model2 fulfills around 70.67% of building energy demand. Although in model 2 materials with high-end properties have been used and therefore are going to be more costly. The use of model2 produces a significant amount of energy but not enough that we can say that it is a net-zero energy building. Although if we further add some minor but significant technologies then we can save a considerable amount of energy and then the energy required by the building is going to be less. The emission by the powerplants can be reduced in this way but then we need to consider the emission associated with these renewable technologies.
The simulation work is performed with IDA ICE (v4.8). This software provides a lot of flexibility to customize building and possibility for input and to determine and investigate important parameters, variables, and values.
The simulation is done by making replica models. There are few changes in the model so that there is improvement in different losses and energy conservation. The real building does not have any renewable energy source. It gets all its energy from the grid. The model developed by IDA ICE has a wind turbine, solar panels for electricity and thermal, heat pumps. A wind turbine with a capacity of 10kW has been installed along with solar panels with a surface area of 4000 m2. In this work, two models with different envelop properties have been compared to show the variation causes due to heat transfer coefficient. The simulation takes nearly 4-5 hours to complete after all required and mandatory inputs. The result has a significant difference from model1 to model2. Model 1 fulfills only 58.88 of building energy demand and on the other hand, model2 fulfills around 70.67% of building energy demand. Although in model 2 materials with high-end properties have been used and therefore are going to be more costly. The use of model2 produces a significant amount of energy but not enough that we can say that it is a net-zero energy building. Although if we further add some minor but significant technologies then we can save a considerable amount of energy and then the energy required by the building is going to be less. The emission by the powerplants can be reduced in this way but then we need to consider the emission associated with these renewable technologies.