scholarly journals Screening Analysis for EPACT-Covered Commercial HVAC and Water-Heating Equipment

2000 ◽  
Author(s):  
S. Somasundaram ◽  
D. W. Winiarski ◽  
D. B. Belzer
Keyword(s):  
Energy Policy ◽  
Carbon Emissions ◽  
Air Conditioning ◽  
Energy Savings ◽  
Pacific Northwest National Laboratory ◽  
Total Carbon ◽  
Heating Equipment ◽  
Water Heating ◽  
Screening Analysis ◽  
Service Water

Abstract The Energy Policy and Conservation Act (EPCA), as amended by the Energy Policy Act of 1992 (EPACT), establishes that the U.S. Department of Energy (DOE) regulate efficiency levels of certain commercial heating, ventilating, and air-conditioning (HVAC) and service water-heating (SWH) equipment categories. Initial minimum efficiency levels for products falling under these categories were established in EPACT, based on the requirements in ASHRAE/IES Standard 90.1-1989. EPCA requirements state that, if the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE) amends efficiency levels prescribed in Standard 90.1-1989, then DOE must establish an amended uniform national manufacturing standard at the minimum level specified in amended Standard 90.1. On October 29, 1999, ASHRAE approved the amended Standard 90.1 (Standard 90.1-1999), which increases the minimum efficiency levels for some of the commercial HVAC and SWH equipment covered by EPCA 92. DOE asked Pacific Northwest National Laboratory (PNNL)2 to conduct a screening analysis to determine the energy-savings potential of the efficiency levels listed in Standard 90.1-1999. The analysis estimated the annual national energy savings and carbon emissions reductions that would result if the EPACT-covered products were required to meet these efficiency levels, and additional energy-savings potential for these products if they exceeded these levels. From 2004 through 2030, the estimated national energy savings achieved by adopting Standard 90.1-1999 efficiency levels for spacecooling equipment is about 3 quadrillion Btu (quads3). The energy savings potential for space-heating equipment is about 0.5 quad and for water-heating equipment is about 0.06 quad. The cumulative commercial-sector building energy consumption during the same time period is estimated to be 485 quads. The total carbon emissions reduction is about 52 millions of metric tons (MMtons).

scholarly journals Screening Analysis for EPACT-Covered Commercial HVAC and Water-Heating Equipment

2002 ◽  
Vol 124 (2) ◽  
pp. 116-124 ◽  
Author(s):  
Sriram Somasundaram ◽  
David W. Winiarski ◽  
David B. Belzer
Keyword(s):  
Energy Consumption ◽  
Economic Analysis ◽  
Carbon Emissions ◽  
Energy Savings ◽  
Economic Benefits ◽  
Emissions Reduction ◽  
Heating Equipment ◽  
Water Heating ◽  
Screening Analysis ◽  
Carbon Emissions Reduction

PNNL, under direction from DOE, conducted a screening analysis to determine the energy savings potential from the efficiency levels for commercial HVAC and water-heating equipment listed in Standard 90.1-1999, as well as the potential from several higher efficiency levels. We estimated the annual energy consumption for each type of equipment, at various efficiency levels, through engineering simulations for seven building types in 11 U.S. locations. We also conducted an economic analysis to identify the efficiency levels that would provide the highest value of economic benefits. From 2004 through 2030, the estimated national energy savings for the equipment meeting the Standard 90.1-1999 efficiency levels is about 3.8 exajoules (EJ) (3.6 quads).1 The total estimated carbon emissions reduction is 52 MMtons.

scholarly journals Screening Analysis for EPACT-Covered Commercial HVAC and Water-Heating Equipment

2000 ◽  
Author(s):  
Sriram Somasundaram ◽  
Peter R Armstrong ◽  
David B Belzer ◽  
Suzanne C Gaines ◽  
Donald L Hadley ◽  
...  
Keyword(s):  
Heating Equipment ◽  
Water Heating ◽  
Screening Analysis

scholarly journals Performance Study on Solar Hybrid Air-Conditioning System for Residential Water Heating

2018 ◽  
Vol 248 ◽  
pp. 01003
Author(s):  
Kaidir ◽  
Mulyanef ◽  
Burmawi
Keyword(s):  
Air Conditioning ◽  
Energy Savings ◽  
New Technology ◽  
Energy Crisis ◽  
Air Conditioner ◽  
Performance Study ◽  
Water Heating ◽  
Water Heaters ◽  
The Government ◽  
Save Energy

The Government of Indonesia has done some efforts to overcome energy crisis nationwide. Among them by issuing a policy as the Foundation for the development and improvement of the capacity of providing energy. The Government has issued a presidential instruction number 10 of the year 2005 on energy savings and last Presidential Instruction No. 2 of the year 2008 about saving energy and water. One of the implementation efforts of this energy crisis is overcome with effort saves energy consumption on the air conditioning with develop hybrids air conditioning, namely as the air conditioner at the same time to the water heating. This research is a new technology for energy saving of electricity. The purpose of this research is to produce a prototype of a hybrid energy efficient refrigeration machine that can be function simultaneously as the engine room air conditioner at the same time water heaters. Specific research targets to be achieved is the realization of a prototype of a hybrid air conditioning engine capacity 1.5 PK which can save energy around 60%. The method of research is the planning, creation, testing the performance of air conditioning machines of compression cycle steam hybrid.

scholarly journals Screening analysis for EPACT-covered commercial HVAC and water-heating equipment

2000 ◽  
Author(s):  
S Somasundaram ◽  
PR Armstrong ◽  
DB Belzer ◽  
SC Gaines ◽  
DL Hadley ◽  
...  
Keyword(s):  
Heating Equipment ◽  
Water Heating ◽  
Screening Analysis

scholarly journals Screening Analysis for EPACT-Covered Commercial HVAC and Water-Heating Equipment

2000 ◽  
Author(s):  
Sriram Somasundaram ◽  
Peter R. Armstrong ◽  
David B. Belzer ◽  
Suzanne C. Gaines ◽  
Donald L. Hadley ◽  
...  
Keyword(s):  
Heating Equipment ◽  
Water Heating ◽  
Screening Analysis

scholarly journals Carbon Emission Estimation of Assembled Composite Concrete Beams during Construction

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1810
Author(s):  
Kaitong Xu ◽  
Haibo Kang ◽  
Wei Wang ◽  
Ping Jiang ◽  
Na Li
Keyword(s):  
Life Cycle ◽  
Carbon Emissions ◽  
Emission Reduction ◽  
Carbon Emission ◽  
Composite Beams ◽  
Total Carbon ◽  
Construction Process ◽  
Low Carbon ◽  
Carbon Emission Reduction ◽  
The Government

At present, the issue of carbon emissions from buildings has become a hot topic, and carbon emission reduction is also becoming a political and economic contest for countries. As a result, the government and researchers have gradually begun to attach great importance to the industrialization of low-carbon and energy-saving buildings. The rise of prefabricated buildings has promoted a major transformation of the construction methods in the construction industry, which is conducive to reducing the consumption of resources and energy, and of great significance in promoting the low-carbon emission reduction of industrial buildings. This article mainly studies the calculation model for carbon emissions of the three-stage life cycle of component production, logistics transportation, and on-site installation in the whole construction process of composite beams for prefabricated buildings. The construction of CG-2 composite beams in Fujian province, China, was taken as the example. Based on the life cycle assessment method, carbon emissions from the actual construction process of composite beams were evaluated, and that generated by the composite beam components during the transportation stage by using diesel, gasoline, and electric energy consumption methods were compared in detail. The results show that (1) the carbon emissions generated by composite beams during the production stage were relatively high, accounting for 80.8% of the total carbon emissions, while during the transport stage and installation stage, they only accounted for 7.6% and 11.6%, respectively; and (2) during the transportation stage with three different energy-consuming trucks, the carbon emissions from diesel fuel trucks were higher, reaching 186.05 kg, followed by gasoline trucks, which generated about 115.68 kg; electric trucks produced the lowest, only 12.24 kg.

scholarly journals Towards Sustainable Energy Retrofitting, a Simulation for Potential Energy Use Reduction in Residential Buildings in Palestine

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3876
Author(s):  
Sameh Monna ◽  
Adel Juaidi ◽  
Ramez Abdallah ◽  
Aiman Albatayneh ◽  
Patrick Dutournie ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Use ◽  
Energy Savings ◽  
Residential Buildings ◽  
Residential Building ◽  
Simulation Models ◽  
Water Heating ◽  
Heating And Cooling ◽  
Space Cooling ◽  
Cooling Loads

Since buildings are one of the major contributors to global warming, efforts should be intensified to make them more energy-efficient, particularly existing buildings. This research intends to analyze the energy savings from a suggested retrofitting program using energy simulation for typical existing residential buildings. For the assessment of the energy retrofitting program using computer simulation, the most commonly utilized residential building types were selected. The energy consumption of those selected residential buildings was assessed, and a baseline for evaluating energy retrofitting was established. Three levels of retrofitting programs were implemented. These levels were ordered by cost, with the first level being the least costly and the third level is the most expensive. The simulation models were created for two different types of buildings in three different climatic zones in Palestine. The findings suggest that water heating, space heating, space cooling, and electric lighting are the highest energy consumers in ordinary houses. Level one measures resulted in a 19–24 percent decrease in energy consumption due to reduced heating and cooling loads. The use of a combination of levels one and two resulted in a decrease of energy consumption for heating, cooling, and lighting by 50–57%. The use of the three levels resulted in a decrease of 71–80% in total energy usage for heating, cooling, lighting, water heating, and air conditioning.

scholarly journals Proposal to Refine Solar Radiation of Typical Meteorological Year Database and Evaluation on the Influence of Air-Conditioning Load

Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 524
Author(s):  
Jihui Yuan ◽  
Kazuo Emura ◽  
Craig Farnham
Keyword(s):  
Solar Radiation ◽  
Air Conditioning ◽  
Energy Savings ◽  
Energy Resource ◽  
Global Solar Radiation ◽  
Resource Assessment ◽  
Weather Data ◽  
Diffuse Solar Radiation ◽  
Chinese Standard ◽  
The Impact

The Typical meteorological year (TMY) database is often used to calculate air-conditioning loads, and it directly affects the building energy savings design. Among four kinds of TMY databases in China—including Chinese Typical Year Weather (CTYW), International Weather for Energy Calculations (IWEC), Solar Wind Energy Resource Assessment (SWERA) and Chinese Standard Weather Data (CSWD)—only CSWD is measures solar radiation, and it is most used in China. However, the solar radiation of CSWD is a measured daily value, and its hourly value is separated by models. It is found that the cloud ratio (diffuse solar radiation divided by global solar radiation) of CSWD is not realistic in months of May, June and July while compared to the other sets of TMY databases. In order to obtain a more accurate cloud ratio of CSWD for air-conditioning load calculation, this study aims to propose a method of refining the cloud ratio of CSWD in Shanghai, China, using observed solar radiation and the Perez model which is a separation model of high accuracy. In addition, the impact of cloud ratio on air-conditioning load has also been discussed in this paper. It is shown that the cloud ratio can yield a significant impact on the air conditioning load.

scholarly journals AUDIT ENERGI PADA SEBUAH HOTEL

2012 ◽  
Vol 16 (3) ◽  
pp. 131
Author(s):  
Didik Ariwibowo
Keyword(s):  
Energy Consumption ◽  
Air Conditioning ◽  
Energy Savings ◽  
Electric Energy ◽  
Electrical Energy ◽  
Hot Water ◽  
Electrical Energy Consumption ◽  
Energy Audit ◽  
Electric Energy Consumption ◽  
Pumping System

Didik Ariwibowo, in this paper explain that energy audit activities conducted through several phases, namely: the initial audit, detailed audit, analysis of energy savings opportunities, and the proposed energy savings. Total energy consumed consists of electrical energy, fuel, and materials in this case is water. Electrical energy consumption data obtained from payment of electricity accounts for a year while consumption of fuel and water obtained from the payment of material procurement. From the calculation data, IKE hotels accounted for 420.867 kWh/m2.tahun, while the IKE standards for the hotel is 300 kWh/m2.tahun. Thus, IKE hotel included categorized wasteful in energy usage. The largest energy consumption on electric energy consumption. Largest electric energy consumption is on the air conditioning (AC-air conditioning) that is equal to 71.3%, and lighting and electrical equipment at 27.28%, and hot water supply system by 4.44%. Electrical energy consumption in AC looks very big. Ministry of Energy and Mineral Resources of the statutes, the profile of energy use by air conditioning at the hotel by 48.5%. With these considerations in the AC target for audit detail as the next phase of activity. The results of a detailed audit analysis to find an air conditioning system energy savings opportunities in pumping systems. Recommendations on these savings is the integration of automation on the pumping system and fan coil units (FCU). The principle of energy conservation in the pumping system is by installing variable speed drives (VSD) pump drive motor to adjust speed according to load on the FCU. Load variations FCU provide input on the VSD pumps to match. Adaptation is predicted pump can save electricity consumption up to 65.7%. Keywords: energy audit, IKE, AC

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