2015 IECC Determination of Energy Savings: Preliminary Technical Analysis

2014 ◽  
Author(s):  
V. Mendon ◽  
Z. Taylor ◽  
S. Rao ◽  
Y. Xie
2014 ◽  
Author(s):  
Mark Halverson ◽  
Rahul Athalye ◽  
Michael Rosenberg ◽  
YuLong Xie ◽  
Weimin Wang ◽  
...  

Author(s):  
Rosa H. Cha´vez ◽  
Javier de J. Guadarrama ◽  
Leticia Carapia ◽  
Abel Herna´ndez-Guerrero

Atmospheric pollution is one of the most important environmental problems, becoming a phenomenon that could reach levels of serious consequences with irreversible environmental impacts. In Mexico, like in several other countries, brick makers carry out brick production by burning mixtures of different heavy fuels. Because of the wide variety of fuels used it is necessary to determine what types of residual gases are generated, in order to propose remedial treatments in production or to introduce substitution technologies. These preventive actions need to be put in place in order to comply with the Ecological Balance and Environment Protection General Law. Brick kilns emit pollutant gases and particles that remain in the air causing a serious health hazard to the near-factory residents. Amongst these pollutants are carbon monoxide (CO), sulfur oxides (SOx) and hydrocarbons. This paper presents the results of the analysis of a novel 3-kilns coupled system. This experimental analysis includes the determination of the combustion products for gases and particulate matter generated from the burning of the heavy fuels using Gas Chromatography and Scanning Electron Microscopy. Field data also allowed the determination of energy savings for this system, mainly due to the reduction of the consumption of fuel. Fortunately these results show a combined 30% energy savings and a reduction of pollutants and particle emissions.


Author(s):  
A. Kania ◽  
K. Cesarz-Andraczke ◽  
J. Odrobiński

Purpose: The article presents an application of FMEA method in a process of chimney system production. The analysis allowed to decrease a potential defects and their effects in the analysed process. Design/methodology/approach: The technical analysis of the process of chimney system production indicated many defects in the product. Based on the FMEA results (value of RPN – Risk Priority Number) corrective and preventive actions were proposed. These actions decrease RPN level by half. Findings: In this paper characteristics of the chimney system and technical analysis of its production process were presented. Failure mode and effects analysis for selected operations of the production process was performed. Practical implications: In the analysed process are possible the nonconformities above the appointed RPN level, because they are dependent on applied technology and machinery. Increase of a quantity of control points and training employees caused a reduction of manufacturing costs, improvement of the product quality and creation of the possibility of effective quality control. Originality/value: FMEA analysis is an effective tool for identification, determination of a risk level, planning and implementation of corrective and preventive actions to decrease a quantity of defects in the final product. Periodic application of this method enables the continuous improvement of the processes and products in enterprises.


2021 ◽  
Vol 3 (1) ◽  
pp. 131-144
Author(s):  
Waluyo Sudarmaji

In the event that the prospective bride and groom will hold a marriage registered at the local Office of Religious Affairs If the age is less than 19 years, it will be rejected because the marriage conditions are not fulfilled. Because the marriage is considered urgent to be carried out, then parents or guardians can apply for a marriage dispensation at the Religious Court. Marriage dispensation is an application for ratification of a marriage that will take place by the prospective bride and groom or one of the prospective brides who are not old enough to marry. This research is the result of research on the consideration of judges in deciding the case of marital dispensation with the analysis of maslahah with the main problem of consideration of judges in deciding the case and the analysis of maslahah. This research is analitive descriptive qualitative research with normative approach, data source used by primary data source in the form of interviews, observations, and secondary data in the form of court determination. The technical analysis of data used is qualitative approach to primary data and secondary data. The purpose of this research is what the judge considered in the Purworejo Religious Court in granting the application for marital dispensation on the determination No. 266/Pdt.P/2020/PA/Pwr, and to find out the determination of judges in the Purworejo Religious Court regarding marital dispensation which is analyzed through maslahah. Based on the results of the research conducted, it can be concluded that the consideration of the judge in granting the request for marital dispensation is on the grounds that the marriage is urgent to be done, between the husband and wife there is no obstacle to marriage and the two families have approved each other. In the analysis maslahah consideration of judges included in the maslahah doruriyah because to maintain religion and descendants.


2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
P. Parsons

Demand controlled ventilation (DCV) reduces energy loss by reducing the air exchange flow rate to the minimum required to maintain acceptable indoor air quality (IAQ). DCV commonly uses carbon dioxide (CO2) as a proxy for human activity and increases the ventilation rate once a preset CO2threshold is exceeded. Significant improvements over threshold based ODV strategies are possible if the natural infiltration rate of the building is measured and the occupancy schedule determined by analysing the CO2concentration continuously. These calculated parameters allow mathematical modeling of the ventilated space and the determination of future CO2concentrations and allow prediction of future ventilation demands. The natural infiltration rate and the onset and duration of vacancy periods in a residential dwelling were determined by analysing CO2concentration data. Concentration declines which fit an exponential decay curve with a correlation coefficient >0.90 identified all vacancy periods. The measured natural infiltration rate was found statistically correlated with average wind speed. A dynamic predicted occupancy map was constructed that has the potential to facilitate significant energy savings via deferred ventilation and intelligent cooling and heating strategies.


Author(s):  
Sergio Escobar Vargas ◽  
Jorge E. Gonzalez ◽  
Mark Aschheim

Methodologies have been developed to allow real-time determination of energy production and use as well as sizing of HVAC equipment based on thermal loads at the residential level. The data obtained reflect actual properties of the thermal envelope and appliance efficiencies, as well as actual renewable power production. The use of properly sized HVAC equipment introduces further energy savings. Recovery of energy savings expressed in terms of carbon offsets provides an incentive to improve the occupant’s energy footprint. When monetized, the energy cost savings and carbon offsets have financial benefits. These benefits are evaluated for model homes in various climatic zones within the state of California.


2015 ◽  
Vol 67 (1) ◽  
pp. 94-104 ◽  
Author(s):  
R. Celorrio ◽  
J. Blanco ◽  
E. Martinez ◽  
E. Jimenez ◽  
J. C. Saenz-Diez

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