Aim
To give more advanced knowledge about how the resources of the earth are used in an as efficient and gentle way as possible regarding designing and building houses.

The aim is to use the natural resources in an efficient and for the environment friendly way before energy and resources are supplied to the system of the building so that energy bought for heating, cooling and electricity supply is minimized. To attain this, knowledge is required about the technical prerequisities and limitations that exists, where a satisfying indoor climate is one fundamental prerequisite.

Knowledge and understanding
For a passing grade the student must

be able to explain different types of low-energy buildings such as passive houses and plusenergy houses and buildings without heating systems

be able to identify critical parts in sustainable/low-energy buidlings which should be analysed from a moisture, indoor climate and energy point of view.

be able to describe technical solutions for the use of solar energy for heating and eletricity supply to buildings. be able to describe how solar use can be integrated in the structure, be able to explain how sunshading can be designed

be able to describe resource-efficient local energy supply systems in the building such as heat pumps, solor collectors and heat from the ground, be able to describe how tap water and waste water systems with a low water- and energy use can be designed

be able to describe ventilationssystem which take advantage of natural driving forces ; the wind called hybrid ventilation and explain technical prerequisities and limitations that are needed to fulfil a satysfying indoor climate

be able to describe sustainable building materials in point of moisture, duration and emissions

have a basic knowledge about hazardeous substances in the building area, their effects on human and environment and what to do if they exist, have a basic knowledge about aspects as re-use and demolition of building materials

Skills and abilities
For a passing grade the student must

be able to analyse how different combinations of measures will affect the energy- and efficiency-need, the indoor climate and the moisture conditions

be able to judge and design technical efficient combinations of system of local energy supply systems in buildings.

be able to calculate and design buidings with a large daylight use

be able to develop passive strategies for indoor climate control

be able to design ventilation systems and their components which adjusts the flow after the need; called demand control ventilation with the purpose of creating a good indoor climate in the most energyeffcient way

be able to independently analyse the resulting indoor climate, energy use and moisture safety based on the technical solutions

be able to analyse and calculate transient conditions of coupled heat- and moisture flux in building elements and structures and evaluate the moisture safety from the results

be able to analyse the reliability of results from computer programs

be able to analyse technical solutions based on lifecycle cost

show ability for teamwork and cooperation in groups, be able to oral and in written, in dialog with other groups, present and discuss ones results and conclusions

Judgement and approach
For a passing grade the student must

be able to identify faults, risks, and limitations with new untested building- and buildings service solutions

be able to identify ones need for more knowledge within the building area.

Contents
by way of introduction relevant terms such as sustainable building in a global perspective together with international and national goals are presented. Then focus is on building and building services technology.

The course deals with sustainability in aspects of; low energy use, comfortable and healthy indoor climate, moisture safety and cautious use of natural resources.

The course treats technical solutions applied in low-energy houses such as passive houses and plus energy houses where the building produces more energy than it uses on a yearly basis; how to use the solar energy and integrate this in the building component; sustainable building materials, hybrid ventilation is presented where the natural driving forces are used during periods when it is possible. The technical solutions are analysed in point of energy, indoor environment and moisture. The course also deals with new combinations of material from environmental- and health aspects, moisture, mould, other environmental damaging substances from the building trade, passiv building design and demolition and recycling.

The course includes exercises in which the students in groups will design sustainable buildings with the technical solutions; building envelope, structure, building material and building service. The students will calculate moisture and heat conditions i critical parts, calculate technical performance and design input for local energy supply systems such as heat pumps and solar collectors, design windows and calculate the daylight factor, design structure and sunshading to give good thermal climate with a low cooling energy need and design a demand controlled ventilation system.

The course is the last within the building service and the building physics area and concludes the area which makes it a synthesis course for this specialization.

Literature
Abel E, Elmroth A, Byggnaden som system. FORMAS.
Nilsson A, Warfvinge C, Undvik fel och fällor som ökar energianvändningen i byggnader. Sveriges Byggindustrier, 2008
Feist W, Internationell kravspecifikation för passivhus,, Passiv Haus Institut, 2007
FEBY, Svensk kravspecifikation för passivhus, Forum för energieffektiva byggnader, 2009
Utdrag ur Bagge H, Energy Use in Multi-family Dwellings, Measurements and Methods of Analysis. Building Physics, LTH, 2007
Utdrag ur Nordquist B, Analys av skolor med fläktförstärkt självdrag, Installationsteknik, LTH, 2007
Utdrag ur Hiller C, Sustainable energy use in 40 houses - A study of changes over a ten-year period, Building Physics, LTH, 2003
Kjellsson E, Utdrag ur solvärme i bostäder, 2004 Byggnadsfysik, LTH
STEM, Solceller i byggnader