Personal Comfort Systems (PCSs) create a localized comfort situation satisfying individual needs. These devices have low power consumption, as they focus on local environment and thus reduce the energy consumption of main HVAC systems by extending ambient control setpoint ranges. This study focuses assessing new type PCS: warming desk. It uses two most efficient effective means heat transfer for person: conduction (hands) radiation (lower upper body parts facing table). Two different desks...

Dynamic energy analysis accurately studies the buildings' thermal behaviour but requires consistent data. The study started with an of most commonly used occupancy profile databases available. Six were selected, and impact database choice was assessed by simulation a standard building using EnergyPlus, under different climatic conditions Reykjavik, London, Madrid. Nine types use profiles simulated. resulting consumption varied depending on used, percentage differences up to 4000%-6000%,...

This study investigated the effect of different correlated colour temperature (CCT) lighting on perceived thermal comfort in a simulated domestic environment with radiant heating. A prototype adjustable CCT (4000K neutral, 1800K warm, 6500K cold) alongside electric panels was installed an environmental chamber set to 18°C. The investigation involved sixty participants who each underwent 30-minute exposure sessions one scenarios blinded setup, during which they filled out questionnaires at...

Abstract Scrap is the main raw material of electric arc furnace (EAF) route steelmaking and an important one in primary route. The decarbonisation commitment acquired by most relevant companies, will only increase amount scrap used both routes, making it a critical component to succeed worldwide challenge reducing CO 2 emissions. While being very material, characterisation complex due its heterogeneity, but furthermore, quality worsening as demand increases. This includes sterile content,...

This research proposes the application of a holistic methodology for accurate assessment financial and environmental feasibility applying thermal insulation materials, including advanced materials such as vacuum panels (VIPs), energy efficient building retrofit. The is applied to case study in which different both traditional (Mineral wool; XPS) are internal typical office requiring simulated through dynamic performance simulation under climate conditions evaluate its annual needs. Financial...

On the Impact of Simplificationson Building Energy Simulation for Early Stage Design Marco Picco, Marengo Abstract The present paper stems from benefits application energy analysis in early-stage building design combined with difficulties that prevent this integration. most common solution is to simplify model, although not enough attention paid understand consequences action. focuses on evaluating impact various model simplifications outputs dynamic simulations. Three different case...

Global climate change is predicted to increase the number and intensity of heatwaves.Fans can be used instead or in combination with compressor-based air conditioning (AC) reduce heat strain on people, while reducing energy consumption, environmental impact, electricity grid stress.In extremely hot dry environments, fan use becomes ineffective due increased convective gain reduced evaporative benefit compared still air.This study evaluates using small coolers cool below thresholds at which...

Abstract The Church of England (CofE) is responding to climate change by taking measures reduce their CO 2 footprint under its flagship programme -‘Shrinking the Footprint’, facilitate emission reduction target 80 % 2050. Meeting this will require both energy efficiency and zero carbon generation which solar PV technology a frontrunner as it has substantially lower than grid’s electricity, with no moving parts, low maintenance long service life. Conventional church roofs built along...

This study is the first step towards a broader research intent: developing and optimising Personal Comfort System for tertiary sector working environments. The entire industrial sector, in particular offices, have seen changes habits, with large increase smart to prevent COVID infection. chance partialise HVAC system maintains rooms an under-conditioned state obligatory way reducing energy waste, providing each workstation independent that guarantees operator's comfort conditions. of...

This research explores how climate change will affect building energy use across the UK by analysing both a conventional reference design and net-zero (NZEBs) alternative to assess each would perform under future weather conditions. Using projections from databases like Prometheus Meteonorm, along with simulation tools EnergyPlus Freds4Buildings, study evaluates performance, costs, GHG emissions of case current conditions, 2030, 2050, 2080 forecasts in three different locations: Exeter,...

This paper aims to introduce the development of a simplified dynamic building energy simulation screening tool aimed support early stage design and feasibility studies while considering lack resources typical those stages process. The structure main characteristics are discussed, providing insight on how they can benefit integrated process more sustainable buildings. Results generated by shown be comparable with results models, proving useful in integration aspects during initial design.

Several church organisations have committed to net-zero by 2030. Guidance churches has been heat the occupants rather than building. Evidence shows a combination of background low grade with radiant systems may achieve more acceptable comfort. A model St Mary de Haura was created using Design Builder. gas fired boiler and radiator system set either 14oC or 20oC. Energy consumption from each local calculated. In some scenarios PMV resulted in close zero, where most would experience neutral...

The present thesis stems from the benefits of application energy analysis in early-stage building design. research highlights barriers that prevent this early integration and finally proposes development a simplified modelling methodology tailored around optimization efficiency during In general, aims to identify (a) accuracy level obtainable through progressive simplifications model, (b) most significant parameters with respect model (c) maximum simplification both able ensure time...

PARE has developed an electrode wear monitoring system. They have implemented such systems at the three electric arc furnaces (two DC, one AC) located in Luxembourg. The goal of these is twofold: first it allows steelmaker to continuously monitor its graphite consumption and relate furnace operating conditions; second a feedback suppliers for quality monitoring.

The present paper analyses a case study of the application dynamic energy simulation on efficiency improvement process an existing commercial building, retrofit CHP machine for combined generation heat and power is analysed. Great attention dedicated to correct sizing CHP/CCHP plant both in term economic viability. A detailed building model developed used, through simulation, identify potential savings achievable with installation sized based results itself. work proves usefulness as...

As a result of difficulty meeting energy efficiency through fabric alteration, historic churches must focus on heating systems and operational strategy as key to reducing carbon emissions. Strategies can be defined local or central heating. Local strives heat occupants, while aims the building therefore occupants. Each requires different approach control technology in response priorities such conservation, comfort cost. This paper reviews current emerging technologies context church The fuel...