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Showing 1 to 20 of 85 for “"heating ventilation"”.
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Analysis of acoustics in heating, ventilation and air conditioning systems
The analysis of acoustics in heating, ventilation and air conditioning systems is presented. The objective of this ASHRAE funded (ASHRAE TRP 556) project was to present the HVAC designer with a set of algorithms for determining the acoustical characteristics of heating, ventilation and air …
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Heating, ventilation, and air conditioning for a superinsulated solar house
… designing a building to use 90% less energy for heating and cooling. The major path to certification is through superinsulation and supersealing of the building. This makes the heating and cooling loads small, requiring a novel HVAC system to provide heating, cooling and ventilation. From the …
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Prediction of performance criteria for passive heating ventilation and air conditioning silencers
Unwanted noise is generated by the operation of heating, ventilation, and air conditioning (HVAC) systems in large buildings. The unwanted noise can be reduced by installing a passive silencer in the HVAC system. The ability to predict the performance criteria (insertion loss, regenerated sound …
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Real Time Diagnostic Expert System for Heating Ventilation and Air Conditioning on a Microcomputer
Made available in DSpace on 2017-07-06T18:49:09Z (GMT). No. of bitstreams: 3 Lagrou_Jerry_M_MS.pdf: 56802497 bytes, checksum: fb1cf09c3d6d425368ed22db8ea54929 (MD5) Lagrou_Jerry_M_MS_ABS.pdf: 664738 bytes, checksum: adfc1b7cabe314aab6cd5f7dcb73a2a0 (MD5) license.txt: 4813 bytes, checksum: …
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Diagnostics in Heating Ventilation and Air Conditioning (HVAC) Systems Using a Rule - Based System
Made available in DSpace on 2017-07-06T18:48:40Z (GMT). No. of bitstreams: 3 Huffer_Jason_E_MS.pdf: 108923499 bytes, checksum: 7598e8c1dda5e1140205024a946c302c (MD5) Huffer_Jason_E_MS_ABS.pdf: 488205 bytes, checksum: 0aa43d14872ee7d9e46c91b8c5d20bee (MD5) license.txt: 4813 bytes, checksum: …
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The energy effects of occupant controlled heating, ventilation and air conditioning systems in office buildings
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Investigation of High Surface Air-to-Phase-Change-Material Heat Exchangers for the Heating, Ventilation, and Air-Conditioning Industry
… to mimic the volumetric flow rate of air in the heating, ventilation, and air-conditioning ducting systems. This study will measure the temperature and pressure upstream and downstream of the heat exchanger to measure how freestream air interacts with the heat exchanger. From experimentation, …
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Simulation- and Experiment-Based Setpoint Control for Heating, Ventilation, and Air-Conditioning Systems: A Single- and Multi-Objective Optimization Problem
… consumption, and 40% of carbon emission. Heating, ventilation, and air-conditioning systems (HVAC) in residential and commercial units account for 40% to 60% of energy usage. To increase energy efficiency and reduce energy usage, buildings are now better insulated, installed with …
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Business reasons for utilizing renewable energy applications in facilities to assist in extending the life of the heating ventilation and air conditioning systems
… in buildings to help extend the life of the heating, ventilation and air conditioning (HVAC) systems. It is designed to focus on gleaning information from the United States and China. These two countries differ politically, socially, economically and culturally. In history, trading and other …
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Meta-modeling and Optimization of Computational Fluid Dynamics (CFD) analysis in thermal comfort for energy-efficient Chilled Beams-based Heating, Ventilation and Air-Conditioning (HVAC) systems
With the rapid rise in the use of air conditioning systems and technological advancements, there is an ever-increasing need for optimizing the HVAC systems for energy efficiency while maintaining adequate occupant thermal comfort. HVAC systems in buildings alone contribute to almost 15% of the …
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Reduction of household energy consumption with innovative energy storage in building structure
… reducing the energy requirements for cooling and heating, thermal energy storage (TES) with phase change materials (PCMs) offers a lot of promise to provide thermal comfort in buildings. Because of its latent heat property, phase change material has a high energy density. The building uses for …
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Local energy management through mathematical modeling and optimization
… the monthly maximum power draw. The problem of heating, ventilation, and air conditioning (HVAC) control is treated separately since it strongly violates TOTEM's linearity assumptions. Nonetheless, we describe a solution approach to the HVAC problem which operates in conjunction with TOTEM. We …
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Development of an integrated building energy simulation with optimal central plant control
… building energy analysis programs is to assist heating, ventilation, and air conditioning (HVAC) engineers in the design process and to help researchers develop more effective and efficient methods of controlling a building's environment. One such program is BLAST (Building Loads Analysis and …
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Optically transparent, thermally insulating and soundproofing (OTTIS) aerogel for high-efficiency window applications
Building heating, ventilation and air conditioning (HVAC) accounts for about 13.6 quadrillion BTU ("quads") per year or 14% of the total energy consumption in the United States.' Accounting for 39% of annual US carbon dioxide emissions, this consumption is directly related to the energy efficiency …
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Thermal and hydraulic analysis of the adsorption bed of the adsorptive thermal battery
… to increase the drive range of EVs, replacing heating, ventilation and air conditioning (HVAC) system with a novel absorbent system of materials and methods is widely investigated. This work focuses on the analysis of the design of such a system to suggest efficiency improvements. The thermal …
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An exploratory investigation of the facility maintenance program at Sterling Regional High School
… categories, including electrical, plumbing, heating/ventilation/air conditioning (HVAC), fire alarms, other mechanical, and interior. It was determined that the HVAC system required the most repair time, most return repairs, and was the most costly. Changes were made in the computerized …
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Improving energy efficiency in a pharmaceutical manufacturing environment -- office building
… viability and competence of the company. Heating, Ventilation and Air Conditioning (HVAC) system was identified as the major energy consumer in both office building and manufacturing building. The step response model of the office indoor temperature to the operating states of the Air …
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The robotic fac̦ade : a design solution for energy conservation in the CityHome of the future
… hub of the home, and housing the majority of the heating, ventilation, and air-conditioning equipment. The design makes use of activity recognition to aid with this energy performance improvement, and adapts the conditions in the living spaces to real-time activities being carried out in the home. …
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Improving energy efficiency in a pharmaceutical manufacturing environment : analysis of EUI and cooling load
… Utilization Index (EUI) and cooling load, the Heating, Ventilation and Air-Conditioning (HVAC) system is identified as the major energy consumer in the plant. The AHU operation schedule in the office building is modified to reduce waste while accommodating the working schedule of employees. …
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