INTERIOR ENVELOPMENT

Assignment 2: Interior Envelopment Insulation

Assignment 2: Interior Envelopment Insulation

Introduction

The energy consumption of a building depends not only on the thermal performance of the building (insulation, compact, passive solar, etc.) but also on the desired temperature setpoint by the inhabitants. Indeed, a temperature rise of 1 ° C of setpoint can generate, depending on the buildings, an increase of energy consumption from 6% to 20%. In particular, the reference surface retained the denominator may consider whether the thickness of the walls, or exclude non technical parts (elevator shafts, boiler), exclude a portion of the floor space depending on the height ceilings, etc. On the other hand, the numerator may include, in addition to the consumption of heating, air conditioning consumption, electricity consumption etc. It can also represent only needs heating, that is to say, regardless of the performance of the heating equipment effectively implemented. The thermal insulation aims to hinder heat transmissions from inside to outside and vice versa to prevent heat loss in cold periods and the gain thereof in warm periods. The insulation is instrumental in both walls and in the glazed openings must also be insulated, with, for example, a double glazing. In the case of the walls is usually located in your wrapper to maintain thermal inertia inside and you have to place special emphasis on the reduction of thermal bridges that typically have lower thermal resistance (Pohl, 2011, pp. 244-251).

Discussion

The thermal energy in a building heat is a discipline to study the energy needs of that building. It primarily addresses the concepts of thermal insulation and ventilation to provide the best thermal comfort to the occupants. It also addresses the issues of energy supply for heating and production of hot water. All parts of a building are subject to heat transfer, which are heat transfer between the warm environment and the cold environment (usually from the inside to the outside). Knowledge and mastery of this heat transfer allows management of energy costs of a building. The decrease in heat transfer keeps moderate temperatures inside the building by bringing as little energy as possible. It also helps to guide the design of the building within a regulatory framework while seeking a compromise between energy cost and comfort. It requires a comprehensive study to distinguish heat sources inside and outside the building, i.e., the active parts of passive components such as exterior surfaces, windows, and roofing (Binggeli, 2010, pp. 141-145).

Thermal Envelope

The thermal envelope of a building is the surface which separates the heated interior volume of the building from the outside environment. It is defined by the walls of the outer vessel. It is around this envelope heat exchange, also called heat transfer, which affect the needs of heating or cooling the building. In general, since the internal environment, the calories reach the walls outside by convection and radiation pass through it by conduction, and escape again by convection and radiation. The purpose of the thermal insulation is to decrease the heat transfer between the inside and the ...