The Greek Housing Stock and the Role of the Occupant’s Behaviour in Achieving Energy Efficiency

The present paper aims to explore the current energy performance of the existing housing stock of Greece while also examining the energy performance of buildings that have undergone refurbishment since the passing of the Energy Performance of Buildings Directive in 2010. A literature review of energy performance legislation and previous surveys are compared to data obtained from 400 dwellings with Energy Performance Certificates for the Thessaloniki and Naousa cities.

BIM & building simulation

Over the last three years the understanding, adoption and use of BIM has gained international momentum.

Performance comparison of temperature and humidity independent control air-conditioning system and the conventional air-conditioning system

This article introduces two system models to simulate the energy performance of the temperature and humidity independent control air-conditioning system (THICS) and the conventional air-conditioning system (CAS). The energy performance comparison includes three parts of cooling resource, transportation system and terminal devices. A typical office building with these two different systems is numerically analyzed. Beijing and Guangzhou, two major cities in China, are chosen, which lay in temperate zone and tropical zone respectively.

Effects of weathers and indoor temperatures on performance of energy recovery ventilator

Based on the generic dynamic building energy simulation environment, EnergyPlus, the simulation model of energy recovery ventilator (ERV) is built in this paper. With different indoor temperature setpoints, the energy performance of ERV along with the availability of ERV is investigated both for Beijing and Shanghai weathers in China in terms of the ratio of heat recovery to energy supply by HVAC devices and ERV. Simulation results show that the seasonal average of the ratio is linear with indoor temperature set-points.

Energy evaluation for personal air-conditioning system in a general multi -bed patient’s room

This paper discuss about characteristics and energy performance of personal air-conditioning system for a general multi-bed patient’s room. Two types of personal air-conditioning systems are evaluated by the laboratory experiment. Energy performance of a peri-counter FCU (a conventional) air-conditioning system is simulated by CFD to compare with that of personal systems. Compared with the conventional system, personal air-conditioning system has an advantage from the viewpoint of amenity improvement, but may consume more energy for cooling in the system.