PAH emissions from old and new types of domestic hot water boilers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F17%3A10229638" target="_blank" >RIV/61989100:27640/17:10229638 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27650/17:10229638 RIV/61989100:27730/17:10229638

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.envpol.2017.03.034" target="_blank" >http://dx.doi.org/10.1016/j.envpol.2017.03.034</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envpol.2017.03.034" target="_blank" >10.1016/j.envpol.2017.03.034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

PAH emissions from old and new types of domestic hot water boilers

Popis výsledku v původním jazyce

Five different domestic heating boilers (automatic, over-fire, with down-draft combustion and gasification) and three types of fuel (lignite, wood and mixed fuel) were examined in 25 combustion tests and correlated with the emissions of particulate matter (PM), carbon monoxide (CO), total organic carbon (TOC) and 12 polycyclic aromatic hydrocarbons (PAHs with MW ¼ 178e278 g/mol) focusing on particle phase. However, the distribution of 12 PAHs in gas phase was considered as well due to the presence mainly of lighter PAHs in gas phase. The PAHs, as well as the CO and TOC, are the indicators of incomplete combustion, and in this study PAH emission increased significantly with increasing emissions of CO and TOC. The PAHs were mainly detected on PM2.5, their contents were increasing linearly with increasing PM2.5 emissions. The highest emission factors of PAHs were measured for boilers of old construction, such as over-fire boiler (5.8e929 mg/kg) and boiler with down-draft combustion (3.1e54.1 mg/kg). Modern types of boilers produced much lower emissions of PAHs, in particular, automatic boiler (0.3 e3.3 mg/kg) and gasification boilers (0.2e6.7 mg/kg). In general, the inefficient combustion at reduced output of boilers generated 1.4e17.7 times more emissions of PAHs than the combustion at nominal output of boilers. It is recommended to operate boilers at nominal output with sufficient air supply and to use the proper fuel to minimise PAHs emissions from domestic heating appliances.

Název v anglickém jazyce

PAH emissions from old and new types of domestic hot water boilers

Popis výsledku anglicky

Five different domestic heating boilers (automatic, over-fire, with down-draft combustion and gasification) and three types of fuel (lignite, wood and mixed fuel) were examined in 25 combustion tests and correlated with the emissions of particulate matter (PM), carbon monoxide (CO), total organic carbon (TOC) and 12 polycyclic aromatic hydrocarbons (PAHs with MW ¼ 178e278 g/mol) focusing on particle phase. However, the distribution of 12 PAHs in gas phase was considered as well due to the presence mainly of lighter PAHs in gas phase. The PAHs, as well as the CO and TOC, are the indicators of incomplete combustion, and in this study PAH emission increased significantly with increasing emissions of CO and TOC. The PAHs were mainly detected on PM2.5, their contents were increasing linearly with increasing PM2.5 emissions. The highest emission factors of PAHs were measured for boilers of old construction, such as over-fire boiler (5.8e929 mg/kg) and boiler with down-draft combustion (3.1e54.1 mg/kg). Modern types of boilers produced much lower emissions of PAHs, in particular, automatic boiler (0.3 e3.3 mg/kg) and gasification boilers (0.2e6.7 mg/kg). In general, the inefficient combustion at reduced output of boilers generated 1.4e17.7 times more emissions of PAHs than the combustion at nominal output of boilers. It is recommended to operate boilers at nominal output with sufficient air supply and to use the proper fuel to minimise PAHs emissions from domestic heating appliances.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/LO1403" target="_blank" >LO1403: Inovace pro efektivitu a životní prostředí - growth</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Environmental Pollution

ISSN

0269-7491

e-ISSN

—

Svazek periodika

2017

Číslo periodika v rámci svazku

225

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

31-39

Kód UT WoS článku

000401679200004

EID výsledku v databázi Scopus

2-s2.0-85016075966