Essays about: "Local exhaust ventilation"

Found 5 essays containing the words Local exhaust ventilation.

1. 1. Evaluation of an Energy System for multi-family houses with Combination of Exhaust Air Heat Pump and PV : Case Study: Demonstration Building of The EU Energy Matching Project, Sweden-Ludvika

   University essay from Högskolan Dalarna/Energiteknik

   Author : Mohammad Azad; [2018]
   Keywords : EnergyMathcing project; Energy system; Novel heating technologies; On-site Renewable Energy; Low temperature heating system; combined solar technologies and heat pump; photovoltaic and exhaust air heat pump; nearly zero energy buildings; simulation of building and energy system;

   Abstract : This thesis investigated application of the heat recovery ventilation using an exhaust air heat pump and a roof top photovoltaic (PV) system for a group of three multi-family houses located in Ludvika, Sunnansjö. The buildings in the existing condition have mechanical ventilation and a centralized heating system consists of a pellet boiler as the main source and an oil boiler as back up. READ MORE

3. 2. Ventilation efficiency measurements - a comparison between three supply air methods

   University essay from Lunds universitet/Avdelningen för Energi och byggnadsdesign

   Author : Max Henriksson; Henrik Nilsson; [2016]
   Keywords : Ventilation efficiency; air exchange efficiency; local ventilation index; mean age of air; comparison; mixed ventilation; displacement ventilation; Technology and Engineering;

   Abstract : This study compares the two traditional ventilation methods ; mixed ventilation and displacement ventilation, with a new type of dif fuser which attempts to solve the problem with blockage of the diffuser for the displacement ventilation. This new diffuser called Airshower is a product developed by Airson engineering AB whom is also the company where all simulations and tests for this study were performed in a built office space. READ MORE

4. 3. Analysis of human exposure at local exhaust ventilation by means of 3D air velocity measurements, tracer gas tests and controlled turbulence environment

   University essay from Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik

   Author : Leyre Catalan Ros; [2015]
   Keywords : local exhaust ventilation; human exposure;

   Abstract : Local exhaust (LE) ventilation is a ventilation technique where contaminated air is locally extracted close to the contaminant source usually with the purpose to reduce the exposure of workers to dust, fumes or vapour, which can be hazardous to their health. The performance of a LE installation depends however on many influential factors, and there is not yet an international standardized way to test LE constructions. READ MORE

5. 4. Air flow disturbance by moving objects at local exhaust ventilation

   University essay from Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik

   Author : Mikel Aguirre Sánchez; [2015]
   Keywords : Local exhaust ventilation;

   Abstract : The present thesis aims to study the effect of human movements on local exhaust ventilation. In its simplest terms, local exhaust ventilation is a system which has the function of extracting contaminated air situated close to the contaminant source, protecting a working person from exposure to hazardous substances by containing or capturing them locally, at the emission point. READ MORE

6. 5. Alternatives to the replacement of an electrical heating system

   University essay from Institutionen för teknik och byggd miljö

   Author : Robert Schumm; Christoph Maier; [2008]
   Keywords : heating system; heat pump; district heating; energy balance;

   Abstract : The aim of this master thesis project is to make an energy survey for a group of apartments and suggestions to change the heating system from electricity to a more efficient one. There are in total 73 flats in 21 buildings. All flats are separated in several houses from two to five flats in one building. There are two different kinds of flats. READ MORE